JP2008224658A - Analog radio-controlled timepiece - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an analog radio-controlled timepiece made so as to be capable of performing a time difference correction by a simple operation while maintaining an operability of a time difference correction timepiece. <P>SOLUTION: A radio reception section 102 receives, through an antenna 101, information of a minute and a second in a time code included in a standard radio, and an operation section 103 corrects only a minute hand 106 and a second hand 105 to the received minute and second. A correction of an hour hand 107 is performed by operating a crown included in a time difference correction mechanism 109. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an analog radio timepiece that wirelessly receives a standard radio wave including a time code representing time and corrects the time based on the time code.

  In recent years, a radio timepiece that receives a standard radio wave including a time code representing the current time and corrects the time has become widespread. In addition, world time radio clocks that can receive all standard radio stations in the world (Japan JJY40, Japan JJY60, US WWVB, UK MSF, Germany DCF77) are gaining popularity (see, for example, Patent Document 1). ).

  The time data transmitted by the standard radio wave is local local time in JJY40, JY60, MSF, and DCF77, and GMT (World Standard Time) in WWVB.

  For this reason, the local time to be received (or GMT) may be different from the local time depending on the reception area, and in order to realize a world time radio timepiece, it is necessary for the user to input local time difference information ( For example, there is a one hour time difference when receiving UK MSF in France).

  In order to achieve this, analog radio timepieces that allow the user to select a stay city have been commercialized. The analog radio timepiece realizes a world time radio timepiece by calculating and displaying the local time by referring to a table of time difference information from the inputted information on the stay city.

  FIG. 4 is a diagram showing a display section of the conventional world time radio timepiece. Around the dial 401, a city name display section 402 on which the names of major cities in the world are printed and provided is provided. The time is displayed by a second hand 105, a minute hand 106, and an hour hand 107 provided on the hand.

  FIG. 5 is a block diagram of the conventional analog radio timepiece shown in FIG.

  In FIG. 5, an analog radio-controlled timepiece includes an antenna 101 that receives a standard radio wave, a radio wave receiving unit 102 that can receive a plurality of standard radio waves and that extracts and outputs a time code from the standard radio wave received by the antenna 101, and an arithmetic unit. 103, a selected city input unit 201 for selectively inputting a city (for example, a user's stay city) in which the local time is to be displayed, a motor 104 driven by a control signal from the calculation unit 103, and a pointer indicating a time (second hand 105) , Minute hand 106, hour hand 107), and drive transmission units 110 to 112 for transmitting the rotation of the motor 104 to the second hand 105, minute hand 106, and hour hand 107.

  The calculation unit 103 stores a time difference table in which a time difference between the current time represented by a standard radio wave output from each radio station and the city is associated with a plurality of cities in the world. Note that an oscillation circuit that outputs a signal having a predetermined frequency and a frequency division circuit that divides the output signal of the oscillation circuit and outputs a clock signal that is timed when the calculation unit 103 performs a time measurement operation are omitted. .

  When the user selects and inputs his / her stay city, the user rotates the second hand 105 by operating the selected city input unit 201 configured by a crown or the like, and positions the second hand 105 at the display position of the city name to be selected. To select a city.

  When receiving the standard radio wave via the antenna 101, the radio wave receiving unit 102 extracts a time code included in the standard radio wave and outputs it to the calculation unit 103.

  The calculation unit 103 determines the standard radio station and the current time based on the time code input from the radio wave reception unit 102 and refers to the time difference table to determine the time difference of the city selected by the selected city input unit 201. Then, the time represented by the time code is corrected with the time difference, the local time of the selected city is calculated, and the motor 104 is rotationally controlled so as to display the calculated local time.

  The motor 104 rotationally drives the second hand 105, the minute hand 106, and the hour hand 107 via the drive transmission units 110 to 112 to display the current time. This makes it possible to display the local time of the user's place of stay.

  However, as described above, in an analog radio-controlled timepiece that displays the time in an analog manner with a time hand, a city name display 402 is provided on the dial 401 or the exterior to select a staying city, and at least representative of the world. The city name needs to be printed. Since many city names must be printed in a narrow space, there is a problem that the characters are small and very difficult to see. Further, the operation for selecting the city name by the user is very complicated and troublesome because the second hand has to be positioned at the display location of the selected city by the operation of the selected city input unit 201, which hinders the spread of radio-controlled watches. Yes.

On the other hand, as a kind of analog timepiece, a time difference correction timepiece is used in which only the hour can be corrected by rotating only the hour hand separately from the second and minute hands. The time difference correction clock has an advantage that the time difference can be easily corrected to the local time by a simple operation of correcting only the hour hand when moving between cities having a time difference.
JP 2006-153655 A (paragraphs [0030] to [0076], FIGS. 1 to 5)

  The present invention has been made in view of the above problems, and it is an object of the present invention to provide an analog radio timepiece capable of correcting a time difference with a simple operation while inheriting the operability of the time difference corrected timepiece. It is said.

  Another object of the present invention is to provide an analog radio timepiece that can perform time difference correction and date correction with a simple operation while inheriting the operability of the time difference correction timepiece.

  In addition, the present invention provides an analog radio timepiece capable of correcting the time difference by a simple operation while automatically inheriting the operability of the time difference correction clock and capable of automatically correcting the date and time by selection. The issue is to provide.

  According to the present invention, receiving means for receiving a standard radio wave including a time code representing a time, a second hand, a minute hand and an hour hand for displaying time in an analog manner, a rotation driving means for rotationally driving at least the second hand, the minute hand and the hour hand, An analog comprising: an hour hand operating means for rotating only the hour hand; and a control means for controlling the rotation driving means so as to correct only the second hand and the minute hand at a time corresponding to the time code. A radio clock is provided.

  The control means controls the rotation driving means so that only the second hand and the minute hand are corrected to the time corresponding to the time code.

  Here, the rotation driving means has a motor and a drive transmission unit for transmitting the rotation of the motor to the second hand, the minute hand and the hour hand, and when the receiving means receives the time code, You may comprise so that the said motor and a drive transmission part may be controlled so that only the said second hand and a minute hand may be corrected to the time corresponding to the said time code.

  The date driving device further includes a date indicator for displaying the date, and the rotation driving unit is configured to rotate the date indicator in response to the control of the control unit. The rotation driving means may be controlled to change the display date of the date indicator when the hour hand rotates the hour hand and the hour hand reaches 24 o'clock.

  A date indicator for displaying the date; and a detecting means for detecting that the hour hand has reached 24 o'clock; and the rotation driving means rotationally drives the second hand, the minute hand, the hour hand and the date indicator, and The means controls the rotation driving means so that the date indicator is rotated to perform date feeding processing when the detection means detects that the hour hand has reached 24:00 by the operation of the hour hand operating means. You may comprise.

  The rotation driving means includes a motor means and a drive transmission unit for transmitting the rotation of the motor means to the second hand, the minute hand, the hour hand, and the date indicator, and the control means includes a time code for the receiving means. When receiving, the motor means and the drive transmission unit may be controlled so that only the second hand and the minute hand are corrected to the time corresponding to the time code.

  The receiving means receives year, day, minute and second information included in the time code, and the control means stores the year and day information received by the receiving means in a storage means, When the detection means detects that the hour hand has reached 24:00 by the operation of the hour hand operation means, the date display of the date indicator is displayed in the case of the end of the month with reference to the year and day information stored in the storage means. The rotation driving means may be controlled to perform the date feeding process so that the number of days is one day, and the number of days that have been dated may be added to the information stored in the memory.

  In addition, a date indicator for displaying the date is provided, the rotating means rotationally drives the second hand, the minute hand, the hour hand, and the date wheel, and the control means corrects the time of the second hand and the minute hand based on the time code. A first receiving mode; a receiving mode selecting means for selecting one of the second receiving mode for correcting the date of the second hand, minute hand, hour hand and date indicator based on the time code; and the second hand in the first receiving mode. And the rotation driving means is controlled so that only the minute hand is corrected to the time corresponding to the time code, and the second hand, the minute hand, the hour hand and the date indicator are corrected to the date and time corresponding to the time code in the second reception mode. In this manner, the rotation driving means may be controlled.

  The rotation driving means includes motor means and drive transmission means for transmitting the rotation of the motor means to the second hand, minute hand, hour hand and date indicator, and the hour hand operating means rotates only the hour hand. Thus, the drive transmission unit may be configured to be driven.

  In addition, the reception mode selection unit includes an operation unit that can perform a predetermined operation, and the control unit determines which of the first and second reception modes is selected based on an operation of the operation unit. The rotation driving unit may be controlled to perform processing corresponding to the selected reception mode.

  The operation means is constituted by the hour hand operation means, and the control means shifts to the first reception mode when detecting that the time difference is corrected by the hour hand operation means, and the time difference correction. It may be configured to shift to the second reception mode when it is detected that is released.

  The hour hand operating means includes a crown, and corrects the time difference of the time hand by operating the crown, and the control means detects the first reception mode when detecting that the time difference is corrected by the crown. It may be configured to shift to the second reception mode when it is detected that the time difference correction is canceled.

  And detecting means for detecting that the hour hand has reached 24:00, and the control means detects the date when the detecting means detects that the hour hand has reached 24:00 by operating the hour hand operating means. You may comprise so that the said rotation drive means may be controlled so that a car may be rotationally driven and a date feeding process may be performed.

  The receiving means may be configured to receive only the minute and second information included in the time code in the first reception mode.

  The hour hand operating means may be configured to drive and control the drive transmission unit so that only the hour hand rotates.

  Further, the receiving means may be configured to receive only information on seconds and minutes included in the time code.

  Further, when the second hand and the minute hand are corrected, the control means is configured to control the rotation driving means so as to rotate the second hand and the minute hand in a direction in which the correction is completed earlier according to the position of the second hand and the minute hand. May be.

  According to the analog radio-controlled timepiece according to the present invention, the time difference can be corrected by a simple operation while inheriting the operability of the time difference correction timepiece.

  Further, according to the analog radio timepiece according to the present invention, it is possible to perform time difference correction and date correction with a simple operation while inheriting the operability of the time difference correction timepiece.

  In addition, according to the analog radio timepiece according to the present invention, it is possible to correct the time difference with a simple operation while inheriting the operability of the time difference correction timepiece, and automatically correct the date and time by selection. Is also possible.

  Hereinafter, an analog radio timepiece according to an embodiment of the present invention will be described. In the drawings, the same parts are denoted by the same reference numerals.

  FIG. 1 is a block diagram of an analog radio timepiece according to the first embodiment of the present invention, showing an example of a wristwatch type analog radio timepiece.

  In FIG. 1, an analog radio-controlled timepiece includes an antenna 101 that receives standard radio waves, a radio wave receiving unit 102 that can receive standard radio waves having a plurality of frequencies, and that extracts and outputs a time code from the standard radio waves received by the antenna 101. A calculation unit 103 constituted by a central processing unit (CPU) and a memory storing a program executed by the CPU, a motor 104 driven by a control signal from the calculation unit 103, a pointer indicating a time (second hand 105, minute hand 106, An hour hand 107) and a date wheel 108 are provided.

  The analog radio-controlled timepiece corrects the time difference by rotating only the hour hand 107 and the drive transmission units 110 to 113 for transmitting the rotation of the motor 104 to the second hand 105, the minute hand 106, the hour hand 107, and the date indicator 108. The operation of the correction mechanism 109, the time difference correction mechanism 109 is transmitted to the hour hand 107, the drive transmission unit 114 that rotates the hour hand, and the operation of the time difference correction mechanism 109 moves the drive transmission unit 112 so that the second hand 105 and the minute hand 106 do not rotate. An anti-rotation mechanism 115 for regulating is provided.

  The time difference correction mechanism 109 is a mechanism used in a known time difference correction timepiece and has a crown (not shown) so that only the hour hand 107 can be rotated by the user operating the crown. It is configured.

  The date indicator 108 may be driven to rotate by a motor different from the motor 104.

  Further, since the characteristic part of the first embodiment is not directly related, a circuit configuration part for the arithmetic unit 103 to perform a normal time measuring operation (functions as a time measuring means) is omitted. That is, although not explicitly shown in FIGS. 1 and 3, an oscillation circuit that outputs a signal of a predetermined frequency, and an output signal of the oscillation circuit is divided and the arithmetic unit 103 performs timekeeping as in a normal radio timepiece. A frequency dividing circuit is provided for outputting a clock signal that is timed when performing.

  The antenna 101 and the radio wave receiving unit 102 constitute a receiving unit that receives standard radio waves, the time difference correcting mechanism 109 calibrates the hour hand operating unit, and the motor 104, the drive transmission units 110 to 114, and the transmission preventing mechanism 115 are rotationally driven. The calculation unit 103 constitutes a control means. At least one standard radio wave may be received, but when receiving and using standard radio waves from a plurality of standard radio stations with different frequencies or time code formats, the antenna 101 and the radio wave receiving unit 102 include a plurality of standard radio waves. What is necessary is just to comprise the receiving means which can receive the standard radio wave from a standard radio station.

  FIG. 2 is a flowchart showing the process of the analog radio timepiece according to the first embodiment of the present invention, and mainly shows the process of the calculation unit 103.

  Hereinafter, the operation of the analog radio-controlled timepiece according to the first embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

  The radio wave receiver 102 receives standard radio waves via the antenna 101. The standard radio signal includes a time code that indicates the year, month, day, hour, minute, and second, but the calculation unit 103 receives only information related to the minute and second in the time code included in the standard radio signal. Then, the radio wave receiving unit 102 is controlled (step S201). At this time, the entire time code may be received, but only necessary information in the time code is received, so the reception time can be shortened and power can be saved. Can do.

  Next, the calculation unit 103 displays the minute and second (D (m, s)) being displayed by the pointer (minute hand 106, second hand 105) and the minute and second (R (m, s)) in the received time code. Are compared (steps S202 and S203).

  When the processing unit 103 determines in the processing step S203 that (R (m, s) −D (m, s)) ≧ 0, that is, the minute and second in the time code are more than the minute and second being displayed. When it is determined that the vehicle is moving, it is determined whether or not the absolute value of (R (m, s) −D (m, s)) is 30 minutes or less (step S204). In the (clockwise) direction, the rotation of the motor 104 is controlled so that the minute hand 106 and the second hand 105 rotate by the absolute value of (R (m, s) −D (m, s)), and the minute and second times Correction is performed (step S205).

  If the arithmetic unit 103 determines that the absolute value of (R (m, s) −D (m, s)) is not less than 30 minutes in process step S204, 60 minutes-(absolute value of R (m, s)-D (m, s))) The rotation of the motor 104 is controlled so as to rotate the minute hand 106 and the second hand 105, and the time of the minute and second is corrected. (Step S206).

  On the other hand, when the calculation unit 103 determines in the processing step S203 that (R (m, s) −D (m, s)) ≧ 0, that is, the minute and second being displayed are minutes in the time code. If the absolute value of (R (m, s) -D (m, s)) is 30 minutes or less is determined (step S207), The rotation of the motor 104 is controlled so that the minute hand 106 and the second hand 105 are rotated by the absolute value of (R (m, s) −D (m, s)) in the reverse direction (counterclockwise). Then, the time of the second is corrected (step S208).

  If the arithmetic unit 103 determines in the processing step S207 that the absolute value of (R (m, s) −D (m, s)) is not less than 30 minutes, 60 minutes-(absolute value of R (m, s)-D (m, s))) The rotation of the motor 104 is controlled so as to rotate the minute hand 106 and the second hand 105, and the time of the minute and second is corrected. (Step S209).

  As in the processing steps S202 to S209, the calculation unit 103 corrects the amount of movement to within ± 30 minutes when correcting the acquired time code to the second information. That is, when the time of the second hand 105 and the minute hand 106 is corrected, the calculation unit 103 controls the motor 104 so as to rotate the second hand 105 and the minute hand 106 in a direction in which the correction ends earlier according to the position of the second hand 105 and the minute hand 106. Therefore, the time adjustment of the second hand 105 and the minute hand can be performed in a short time.

  When the hour hand 107 is corrected by operating the time difference correction mechanism 109, if a predetermined operation such as stepping and rotating the crown included in the time difference correction mechanism 109 is performed, the operation is performed via the time difference correction transmission unit 114. The time difference of the hour hand 107 is corrected by being transmitted to the hour hand. At this time, since the operation of the time difference correction mechanism 109 is not transmitted to the drive transmission unit 112 by the transmission prevention mechanism 115, the second hand 105 and the minute hand 106 do not rotate, so only the hour hand 107 is corrected.

  The calculation unit 103 controls the rotation of the motor 104 so that the date displayed on the date indicator 108 becomes the next day when the hour hand 107 reaches 24:00 by the operation of the time difference correction mechanism 109. The motor 104 rotationally drives the date indicator 108 via the transmission unit 113 to change the date display.

  As described above, according to the analog radio-controlled timepiece according to the present embodiment, the second hand 105 and the minute hand 106 are corrected based on the standard radio wave, and the hour hand 107 and the date indicator 108 are configured to be set by the user. The operation becomes very simple, and it is possible to provide an analog radio timepiece that can receive standard radio stations all over the world while inheriting the operability of the time difference correction timepiece.

  It should be noted that even if the standard radio stations that can be received are not all over the world, it is sufficient that the standard radio stations in some regions can receive the standard radio stations in some regions and adjust the time.

  Further, as shown in FIG. 3 as the second embodiment of the present invention, the date indicator 108 can be omitted. The operation of the second embodiment is the same as that of the first embodiment except for the operation related to the date indicator 108, and the reception process shown in FIG.

  FIG. 6 is a block diagram of an analog radio timepiece according to a third embodiment of the present invention, which is a block diagram common to the embodiments described later, and shows an example of a wristwatch type analog radio timepiece.

  In FIG. 6, an analog radio-controlled timepiece includes an antenna 101 that receives standard radio waves, a radio wave receiving unit 102 that can receive standard radio waves having a plurality of frequencies, and that extracts and outputs a time code from the standard radio waves received by the antenna 101. A calculation unit 103 constituted by a central processing unit (CPU) and a memory 119 storing a program executed by the CPU, a first motor 104 for driving a pointer driven by a control signal from the calculation unit 103, and a date indicator drive The second motor 201, hands indicating time (second hand 105, minute hand 106, hour hand 107) and date wheel 108 are provided. In the fourth embodiment to be described later, the memory 119 is configured to be able to store year and day information in the received time code.

  Further, the analog radio-controlled timepiece is composed of a second hand 105 and a minute hand 106, for example, a drive transmission unit 110 to 112 configured to transmit the rotation of the first motor 104 to the hour hand 107, and the rotation of the second motor 201. A drive transmission unit 118 for transmitting to the hour, a time difference correction mechanism 109 for correcting the time difference by rotating only the hour hand 107, and a drive transmission unit 114 for transmitting the operation of the time difference correction mechanism 109 to the hour hand 107 to rotate the hour hand 107. The rotation prevention mechanism 115 that restricts the movement of the drive transmission unit 114 so that the second hand 105 and the minute hand 106 do not rotate by the operation of the time difference correction mechanism 109, and the operation of the time difference correction mechanism 109 detects that the hour hand 107 has reached 24:00. The operation of the 24-hour detection switch 121 and the time difference correction mechanism 109 indicates that the hour hand 107 has reached 24:00. Transmitted to the 4 o'clock detection switch 121 (e.g., to turn on the 24:00 detection switch 121) and a drive transmission unit 117.

  The time difference correction mechanism 109 is a mechanism used in a known time difference correction timepiece and has a crown (not shown) so that only the hour hand 107 can be rotated by the user operating the crown. It is configured.

  The first motor 104 for driving the pointer and the second motor 201 for driving the date indicator 108 are not necessarily provided. At least one motor 104 is provided, and the date indicator 108 is driven to rotate by the motor 104. You may comprise as follows.

  Further, since the characteristic part of the third embodiment is not directly related, a circuit configuration part for the arithmetic unit 103 to perform a normal time measuring operation (function as a time measuring means) is omitted. That is, although not explicitly shown in FIG. 1, an oscillation circuit that outputs a signal of a predetermined frequency, as in a normal radio timepiece, and when the arithmetic unit 103 performs a timing operation by dividing the output signal of the oscillation circuit A frequency dividing circuit for outputting a clock signal for clocking is provided.

  The antenna 101 and the radio wave receiving unit 102 constitute a receiving unit that receives a standard radio wave, and the time difference correcting mechanism 109 constitutes an hour hand operating unit. The first motor 104, the second motor 201, the drive transmission units 1102 to 112, 114, 117, 118 and the transmission preventing mechanism 115 constitute a rotation drive means, the 24-hour detection switch 121 constitutes a detection means, the arithmetic unit 103 constitutes a control means, and the memory 119 constitutes a storage means. . The first motor 104 and the second motor 201 constitute motor means. At least one standard radio wave may be received, but when receiving and using standard radio waves from a plurality of standard radio stations with different frequencies or time code formats, the antenna 101 and the radio wave receiving unit 102 include a plurality of standard radio waves. What is necessary is just to comprise the receiving means which can receive the standard radio wave from a standard radio station.

  The analog radio-controlled timepiece according to the third embodiment of the present invention performs the same reception process as the flowchart of FIG.

  Hereinafter, the operation of the analog radio timepiece according to the third embodiment of the present invention will be described in detail with reference to FIGS. 6 and 2.

  6 and 2, a description will be given of processing in the case where only the minute and second information in the time code included in the standard radio signal is received and the minute and second are corrected.

  The radio wave receiver 102 receives standard radio waves via the antenna 101. The standard radio wave signal includes a time code representing year, day, hour, minute, and second. The calculation unit 103 uses the standard radio wave based on information in the time code input from the radio wave receiver 102. The radio wave receiving unit 102 is controlled so as to receive only information related to the minutes and seconds in the time code included in the signal (step S201). At this time, the entire time code may be received, but only necessary information in the time code is received, so the reception time can be shortened and power can be saved. Can do.

  Next, the calculation unit 103 displays the minute and second (D (m, s)) being displayed by the pointer (minute hand 106, second hand 105) and the minute and second (R (m, s)) in the received time code. Are compared (steps S202 and S203).

  When the processing unit 103 determines in the processing step S203 that (R (m, s) −D (m, s)) ≧ 0, that is, the minute and second in the time code are more than the minute and second being displayed. When it is determined that the vehicle is moving, it is determined whether or not the absolute value of (R (m, s) −D (m, s)) is 30 minutes or less (step S204). In the (clockwise) direction, the first motor 104 is rotationally controlled so that the minute hand 106 and the second hand 105 rotate by an absolute value of (R (m, s) −D (m, s)), and the minute and second. Is corrected (step S205).

  If the arithmetic unit 103 determines that the absolute value of (R (m, s) −D (m, s)) is not 30 minutes or less in the processing step S204, the arithmetic unit 103 in the reverse (counterclockwise) direction ( 60 minutes-(absolute value of R (m, s)-D (m, s))) The first motor 104 is rotationally controlled so as to rotate the minute hand 106 and the second hand 105, thereby correcting the time of minutes and seconds. Is performed (step S206).

  On the other hand, when the calculation unit 103 determines in the processing step S203 that (R (m, s) −D (m, s)) ≧ 0, that is, the minute and second being displayed are minutes in the time code. If the absolute value of (R (m, s) -D (m, s)) is 30 minutes or less is determined (step S207), The rotation of the first motor 104 is controlled so that the minute hand 106 and the second hand 105 are rotated in the reverse direction (counterclockwise) by the absolute value of (R (m, s) −D (m, s)). , The time of the minute and second is corrected (step S208).

  If the arithmetic unit 103 determines in the processing step S207 that the absolute value of (R (m, s) −D (m, s)) is not less than 30 minutes, 60 minutes-(absolute value of R (m, s)-D (m, s))) The first motor 104 is rotationally controlled so as to rotate the minute hand 106 and the second hand 105, thereby correcting the time of minutes and seconds. (Step S209).

  As in the processing steps S202 to S209, the calculation unit 103 corrects the amount of movement to within ± 30 minutes when correcting the acquired time code to the second information. That is, when correcting the time of the second hand 105 and the minute hand 106, the calculation unit 103 sets the first motor 104 so as to rotate the second hand 105 and the minute hand 106 in a direction in which the correction ends earlier according to the position of the second hand 105 and the minute hand 106. Since it is controlled, the time of the second hand 105 and the minute hand 106 can be corrected in a short time.

  When the hour hand 107 is corrected by operating the time difference correction mechanism 109, when a predetermined operation such as stepping and rotating the crown included in the time difference correction mechanism 109 is performed, the operation is performed via the time difference correction transmission unit 115. This is transmitted to the hour hand 107 and the time difference of the hour hand 107 is corrected. At this time, since the operation of the time difference correction mechanism 109 is not transmitted to the drive transmission unit 112 by the transmission prevention mechanism 115, the second hand 105 and the minute hand 106 do not rotate, so only the hour hand 107 is corrected.

  When the hour hand 107 is set to 24:00 by the operation of the time difference correction mechanism 109 is transmitted to the 24-hour detection switch 121 via the drive transmission unit 117, the 24-hour detection switch 121 indicates that the hour hand 107 is set to 24:00. Is detected. When the 24-hour detection switch 121 detects that the hour hand 107 has become 24, the calculation unit 103 controls the rotation of the second motor 201 so that the date displayed on the date indicator 108 is processed. The second motor 201 rotates the date indicator 108 via the drive transmission unit 118 and changes the date display to the next day.

  As described above, according to the third embodiment, the second hand 105 and the minute hand 106 are corrected based on the standard radio wave, and the hour hand 107 and the date indicator 108 are configured to be set by the user, so that the operation can be performed. It becomes very simple, and it is possible to provide an analog radio clock that can receive standard radio stations all over the world while inheriting the operability of the time difference correction clock.

  7 and 8 are flowcharts showing the processing of the analog radio timepiece according to the fourth embodiment of the present invention, and mainly show the processing of the calculation unit 103.

  In FIG. 7, only the year, day, minute, and second information in the time code included in the standard radio signal is received, the minute and second are corrected, and the year and day information is used for date correction. The processing in the case of storing in the memory 119 is shown, and the same reference numerals are given to the portions that perform the same processing as in FIG.

  Further, in FIG. 8, when the 24-hour detection switch 121 detects that the hour hand 107 has reached 24:00, based on the year and day information stored in the memory 119, whether or not the current day is the end of the month, The example which performs the date feeding process of the date indicator 108 appropriately is shown.

  First, using FIG. 6 and FIG. 7, only the year, day, minute, and second information in the time code included in the standard radio signal is received, the minute and second are corrected, and the date is corrected. A process for storing year and day information in the memory 119 of the calculation unit 103 will be described.

  The radio wave receiver 102 receives standard radio waves via the antenna 101. The standard radio wave signal includes a time code representing year, day, hour, minute, and second. The calculation unit 103 uses the standard radio wave based on information in the time code input from the radio wave receiver 102. The radio wave receiving unit 102 is controlled so as to receive only information related to year, day, minute, and second in the time code included in the signal (step S701). At this time, the entire time code may be received, but only necessary information in the time code is received, so the reception time can be shortened and power can be saved. Can do.

  Next, the calculation unit 103 stores the year and day information in the time code in the internal memory 119 (step S702).

  Hereinafter, as in FIG. 2, the calculation unit 103 displays the minute and second (D (m, s)) displayed by the hands (the minute hand 106 and the second hand 105) and the minute and second (R ( m, s)), and the motor 104 is controlled so as to rotate the second hand 105 and the minute hand 106 in the direction in which the correction ends earlier (steps S202 to S209).

  Next, using FIG. 6 and FIG. 8, an operation when performing the date feeding process of the date indicator 108 when the 24-hour detection switch 121 detects that the hour hand 107 has reached 24:00 will be described.

  When the calculation unit 103 determines that the 24-hour detection switch 121 has detected that the hour hand 107 has reached 24:00 (step S801), it refers to the year and date information stored in the memory 119 (step S802), and today Is the end of the month (step S803).

  If it is determined in processing step S803 that today is not the end of the month, arithmetic unit 103 controls second motor 201 to increase the date display of date indicator 108 by one day (step S804) and stores it in memory 119. One day is added to the year and day information (step S805). In response to the control of the calculation unit 103, the second motor 201 rotates the date indicator 108 for one day via the drive transmission unit 118, and changes the date display to the next day.

  On the other hand, when it is determined in process step S803 that today is the end of the month, the operation unit 103 increases the date display by a predetermined number of days α according to the month so that the date display of the date indicator 108 becomes the first day of the next month. The motor 201 is controlled (step S806), and the predetermined number of days α is added to the year and day information stored in the memory 119 (step S807). In response to the control of the calculation unit 103, the second motor 201 rotates the date indicator 108 by the predetermined number of days α through the drive transmission unit 118, and changes the date display to the first day of the next month.

  As described above, according to the analog radio-controlled timepiece according to the fourth embodiment, as in the third embodiment, the second hand 105 and the minute hand 106 are corrected based on the standard radio wave, and the hour hand 107, the date By configuring the car 108 to be set by the user, it is very easy to operate, and it is possible to provide an analog radio clock that can receive standard radio stations around the world while inheriting the operability of the time difference correction clock. It becomes. In addition, when the date changes when the time difference is corrected, it is possible to perform an appropriate date feeding process depending on whether or not it is the end of the month.

  It should be noted that even if the standard radio stations that can be received are not all over the world, it is sufficient that the standard radio stations in some regions can receive the standard radio stations in some regions and adjust the time.

  FIG. 9 is a block diagram of an analog radio timepiece according to the fifth embodiment of the present invention, showing an example of a wristwatch type analog radio timepiece.

  In FIG. 9, an analog radio-controlled timepiece has an antenna 101 that receives standard radio waves, a radio wave receiving unit 102 that can receive standard radio waves having a plurality of frequencies, and that extracts and outputs a time code from the standard radio waves received by the antenna 101; A calculation unit 103 constituted by a central processing unit (CPU) and a memory (not shown) storing a program executed by the CPU; a first motor 104 for driving a pointer driven by a control signal from the calculation unit 103; A second motor 201 for driving the date dial, hands indicating time (second hand 105, minute hand 106, hour hand 107), and date dial 108 are provided.

  The analog radio-controlled timepiece also includes drive transmission units 110 to 112 for transmitting the rotation of the first motor 104 to the second hand 105, the minute hand 106, and the hour hand 107, and a drive for transmitting the rotation of the second motor 201 to the date wheel 108. The transmission unit 118, the time difference correction mechanism 109 that corrects the time difference by rotating only the hour hand 107, the operation of the time difference correction mechanism 109 is transmitted to the hour hand 107, the drive transmission unit 114 that rotates the hour hand 107, and the time difference correction mechanism 109 A rotation prevention mechanism 115 that restricts the movement of the drive transmission unit 112 so that the second hand 105 and the minute hand 106 do not rotate by operation; a 24-hour detection switch 121 that detects that the hour hand 107 has reached 24:00 by operation of the time difference correction mechanism 109; The operation of the time difference correction mechanism 109 indicates that the hour hand 107 has reached 24:00 to the 24-hour detection switch 121. Whether the time difference of the hour hand 107 has been corrected by the operation of the drive transmission unit 117 reaching (for example, turning on the 24-hour detection switch 121), the operation of the time difference correction mechanism 109 (for example, a predetermined operation of the crown 120 included in the time difference correction mechanism 109), etc. Is provided with a time difference correction detection switch 119. Each drive transmission part 110-112, 114, 117, 118 can be comprised by a wheel train.

  The time difference correction mechanism 109 is a mechanism used in a known time difference correction clock, and has a crown 120 that can be operated by the user, and the user can rotate only the hour hand 107 by operating the crown 120. It is configured as follows.

  It is not always necessary to provide a plurality of motors, ie, the first motor 104 for driving the pointer and the second motor 201 for driving the date indicator 108, and at least one motor 104 is provided. You may comprise so that the car 108 may be rotationally driven.

  In addition, since the characteristic part of the fifth embodiment is not directly related, a circuit configuration part for the arithmetic unit 103 to perform a normal time measuring operation (function as a time measuring unit) is omitted. That is, although not explicitly shown in FIG. 9, an oscillation circuit that outputs a signal of a predetermined frequency, and the output signal of the oscillation circuit are divided and the calculation unit 103 performs a timekeeping operation, as in a normal radio timepiece. A frequency dividing circuit for outputting a clock signal for clocking is provided.

  Here, the antenna 101 and the radio wave receiving unit 102 constitute receiving means for receiving standard radio waves, and the time difference correcting mechanism 109 constitutes hour hand operating means and operating means. The first motor 104, the second motor 201, the drive transmission units 110 to 112, 114, 117, 118 and the transmission prevention mechanism 115 constitute a rotation drive unit, the 24-hour detection switch 121 constitutes a detection unit, and the calculation unit 103 Constitutes a control means. The first motor 104 and the second motor 201 constitute motor means.

  In addition, the time difference correction mechanism 109, the time difference correction detection switch 119, and the calculation unit 103 constitute a reception mode selection unit. The reception mode selection means automatically shifts to the first reception mode or the second reception mode when a reception environment where the reception sensitivity is equal to or higher than a predetermined level or when a predetermined condition such as a predetermined time is satisfied. You may comprise.

  Although at least one standard radio wave that can be received is sufficient, when receiving and using standard radio waves from a plurality of standard radio stations with different frequencies or time code formats, a plurality of antennas 101 and radio wave receiving units 102 are provided. What is necessary is just to comprise the receiving means which can receive the standard radio wave from this standard radio station.

  FIG. 10 is a flowchart showing the processing of the analog radio timepiece according to the fifth embodiment of the present invention, and mainly shows the processing of the calculation unit 103. FIG. 10 shows a process for selecting the reception mode.

  The reception mode selection process will be described with reference to FIGS. 9 and 10. The calculation unit 103 determines whether or not the time difference correction mechanism 109 has been operated, specifically, the crown 120 included in the time difference correction mechanism 109 operates. It is determined whether or not it has been done (step S1001).

  When it is determined in processing step S1001 that the crown 120 has been operated by one step, the arithmetic unit 103 corrects the time of only the second hand 105 and the minute hand 106 based on the time code of the standard radio wave received by the radio wave receiver 102. When the first reception mode is entered (S1002) and it is determined that the crown 120 has been operated by two steps, the second date and time of the second hand 105, the minute hand 106, the hour hand 107 and the date wheel 108 are corrected based on the time code. When the mode is changed to the reception mode (S1003) and the crown is not operated, the mode is not changed to the reception mode.

  In the fifth embodiment, since the time difference of the hour hand 107 can be corrected when the crown 120 is pulled by one step, the time difference correction detection switch 119 has the crown 120 pulled by one step. This is detected (in other words, the time difference has been corrected), and the arithmetic unit 103 is notified that the time difference has been corrected. The computing unit 103 receives the notification from the time difference correction detection switch 119 and determines that a time difference correction operation has been performed.

  On the other hand, since the time difference correction of the hour hand 107 is canceled and the time difference correction cannot be performed when the crown 120 is pulled by two steps, the time difference correction detection switch 119 indicates that the crown 120 has been pulled by two steps. (In other words, the time difference correction is canceled), and the arithmetic unit 103 is notified of the time difference correction cancellation. The calculation unit 103 receives the notification from the time difference correction detection switch 119 and determines that the time difference correction release operation has been performed.

  FIG. 11 shows the processing of the calculation unit 103 in the second reception mode, and receives all the information (specifically, year, day, hour, minute, second) of the time code included in the standard radio signal. This is a process for correcting the date and time, and is the same process as the time correction process normally performed by a general radio clock.

  The operation in the second reception mode of the analog radio timepiece according to the fifth embodiment of the present invention will be schematically described below with reference to FIGS. 9 and 11.

  The processing in the first reception mode of the analog radio timepiece according to the fifth embodiment is the same as that in FIG.

  The radio wave receiver 102 receives standard radio waves via the antenna 101. At this time, the calculation unit 103 determines that the current mode is the second reception mode, and receives the radio wave so as to receive all information (specifically, year, day, hour, minute, second) included in the time code of the standard radio wave. The receiving unit 102 is controlled (step S1101).

  Next, the calculation unit 103 displays the display time of the hands (second hand 105, minute hand 106, hour hand 107) and the date indicator 108 based on the date / time information (year, day, hour, minute, second) of the received time code. The first and second motors 104 and 201 are controlled to correct the date (step S1102). The first and second motors 104 and 201 respectively correct the hands 105 to 107 and the date dial 108 so as to match the received time code, thereby completing the date and time correction.

  As described above, according to the analog radio-controlled timepiece according to the fifth embodiment, the second hand 105 and the minute hand 106 are automatically adjusted for time, and the hour hand 107 is manually adjusted for time difference, and the pointer 105 To 107 and the date indicator 108 are configured to be able to select the second reception mode to be automatically corrected.

  Therefore, in the first reception mode, the second hand 105 and the minute hand 106 are corrected based on the standard radio wave, and the hour hand 107 and the date indicator 108 are configured to be set by the user, so that the operation becomes very simple and the time difference correction timepiece is set. It is possible to provide an analog radio clock that can receive standard radio stations from all over the world while inheriting the operability of.

  In the second reception mode, the time can be automatically adjusted without performing any operation.

  Therefore, it is possible to correct the time difference with a simple operation while inheriting the operability of the time difference correction clock, and it is possible to automatically correct the date and time by selection.

  It should be noted that even if the standard radio stations that can be received are not all over the world, it is sufficient that the standard radio stations in some regions can receive the standard radio stations in some regions and adjust the time.

  It can be used for an analog radio clock that can receive standard radio waves transmitted by one or more standard radio stations.

1 is a block diagram of an analog radio timepiece according to a first embodiment of the present invention. It is a flowchart which shows the process of the analog radio timepiece concerning each embodiment of the present invention. It is a block diagram of an analog radio timepiece according to a second embodiment of the present invention. It is an external view of the conventional analog radio timepiece. It is a block diagram of a conventional analog radio timepiece. It is a block diagram of an analog radio timepiece according to a third embodiment of the present invention. It is a flowchart which shows the process of the analog radio-controlled timepiece concerning the 4th Embodiment of this invention. It is a flowchart which shows the process of the analog radio-controlled timepiece concerning the 4th Embodiment of this invention. FIG. 9 is a block diagram of an analog radio timepiece according to a fifth embodiment of the invention. It is a flowchart which shows the process of the analog radio timepiece which concerns on the 5th Embodiment of this invention. It is a flowchart which shows the process of the analog radio timepiece which concerns on the 5th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 ... Antenna 102 ... Radio wave receiving part 103 ... Calculation part 104, 201 ... Motor 105 ... Second hand 106 ... Minute hand 107 ... Hour hand 108 ... Date wheel 109 ... Time difference correction mechanisms 110-114, 117, 118 ... drive transmission unit 111 ... 24-hour detection switch 115 ... transmission prevention mechanism 119 constituting rotational drive means ... memory 120 ... crown

Claims (16)

  Receiving means for receiving a standard radio wave including a time code indicating time, a second hand, a minute hand and an hour hand for displaying time in analog form, a rotation driving means for rotationally driving at least the second hand, the minute hand and the hour hand, and rotating only the hour hand An analog radio timepiece comprising: an hour hand operating means for controlling; and a control means for controlling the rotation driving means so as to correct only the second hand and the minute hand to a time corresponding to the time code. The rotation drive means has a motor and a drive transmission unit for transmitting rotation of the motor to the second hand, minute hand and hour hand,
The said control means controls the said motor and a drive transmission part so that only the said second hand and a minute hand may be corrected to the time corresponding to the said time code, when the said receiving means receives a time code. 1 is an analog radio clock. And a date indicator for displaying the date, and the rotation driving means is configured to rotate the date indicator in response to the control of the control means.
The said control means controls the said rotation drive means so that the display date of the said date indicator may be changed, when the said hour hand turns to 24 o'clock when the said hour hand operating means rotates the hour hand. Item 3. The analog timepiece according to item 1 or 2. A date indicator for displaying the date and detection means for detecting that the hour hand has reached 24 o'clock, and the rotation driving means rotationally drives the second hand, the minute hand, the hour hand and the date indicator,
The control means controls the rotation driving means so that the date indicator is rotated to perform date feeding processing when the detection means detects that the hour hand has reached 24:00 by the operation of the hour hand operating means. The analog radio-controlled timepiece according to claim 1. The rotation drive means has a motor transmission means and a drive transmission section for transmitting the rotation of the motor means to the second hand, minute hand, hour hand and date indicator,
The said control means controls the said motor means and a drive transmission part so that only the said second hand and a minute hand may be corrected to the time corresponding to the said time code, when the said receiving means receives a time code. Item 5. The analog timepiece according to item 4. The receiving means receives year, day, minute and second information included in the time code,
The control means stores the year and date information received by the receiving means in the storage means, and when the detection means detects that the hour hand has reached 24:00 by the operation of the hour hand operating means, the storage means Referring to the year and day information stored in the above, in the case of the end of the month, the rotation driving means is controlled to perform date feeding processing so that the date display of the date indicator becomes 1 day, and stored in the memory 6. The analog radio timepiece according to claim 4 or 5, wherein the number of days that have been subjected to a date advance process is added to the information. It has a date wheel to display the date,
The rotating means rotationally drives the second hand, minute hand, hour hand and date wheel,
The control means includes a first reception mode for correcting the time of the second hand and the minute hand based on the time code, and a second reception mode for correcting the date and time of the second hand, the minute hand, the hour hand and the date indicator based on the time code. Receiving mode selection means for selecting any of the above, and the rotation driving means is controlled to correct only the second hand and the minute hand to a time corresponding to the time code in the first reception mode, and in the second reception mode, 2. The analog radio timepiece according to claim 1, wherein the rotation driving means is controlled so that the second hand, the minute hand, the hour hand and the date indicator are corrected to a date and time corresponding to the time code. The rotation driving means has motor transmission means for transmitting the rotation of the motor means and the motor means to the second hand, minute hand, hour hand and date indicator,
8. The analog radio timepiece according to claim 7, wherein the hour hand operating means drives the drive transmission unit so that only the hour hand rotates.   The reception mode selection unit includes an operation unit that can perform a predetermined operation, and the control unit determines whether the first reception mode or the second reception mode is selected based on an operation of the operation unit, and 9. The analog radio-controlled timepiece according to claim 7, wherein the rotation driving unit is controlled so as to perform processing corresponding to the selected reception mode.   The operating means is constituted by the hour hand operating means, and the control means shifts to the first reception mode when detecting that the time difference is corrected by the hour hand operating means, and the time difference correction is canceled. 10. The analog radio-controlled timepiece according to claim 9, wherein when the operation is detected, the mode is shifted to the second reception mode. The hour hand operating means includes a crown, and corrects the time difference of the time hand by operating the crown,
The control means shifts to the first reception mode when it detects that the time difference has been corrected by the crown, and shifts to the second reception mode when it detects that the time difference correction has been canceled. The analog radio-controlled timepiece according to claim 10, wherein: Detecting means for detecting that the hour hand has reached 24:00,
The control means controls the rotation driving means so that the date indicator is rotated to perform date feeding processing when the detection means detects that the hour hand has reached 24:00 by the operation of the hour hand operating means. The analog radio timepiece according to claim 8, wherein   13. The analog radio timepiece according to claim 8, wherein in the first reception mode, the reception unit receives only information on minutes and seconds included in the time code.   6. The analog radio-controlled timepiece according to claim 1, wherein the hour hand operating means drives and controls the drive transmission unit so that only the hour hand rotates.   15. The analog radio timepiece according to claim 1, 4, 5, or 14, wherein the receiving means receives only information on seconds and minutes included in the time code.   When the second hand and the minute hand are corrected, the control means controls the rotation driving means so as to rotate the second hand and the minute hand in a direction in which the correction is completed earlier according to the position of the second hand and the minute hand. The analog radio-controlled timepiece according to any one of claims 1 to 15.

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