JPH06292127A - Still image dubbing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To significantly reduce the effects of crosstalk to other signal lines, unnecessary radiation, monitoring of data and clock timings, and signal attenuation in a still image dubbing device. Also, transfer a large amount of data in a short time. A clock generation circuit 49-1 generates a plurality of different clocks for obtaining a data rate that is at least slower and faster than the data rate of image display, and at the time of dubbing, a clock selector circuit 37-1 causes the clock generation circuit 49-1. One clock is selected from a plurality of different clocks generated by -1, and the control circuit 40-1 and the interface circuit 41-1 perform data transfer at the data rate based on the selected clock.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image dubbing device for dubbing still images.

[0002]

2. Description of the Related Art FIG. 11 is a block diagram showing the structure of a conventional still image dubbing apparatus. In the figure, 61 is an A / D converter for converting green image (still image or moving image) data from analog to digital, Similarly 62, 63
Is a red / blue A / D converter, 64 is a D / that converts green image data from digital to analog
A converter, similarly 65 and 66 are red and blue D / A converters, 67 is a frame memory dedicated to displaying green still images and moving images, and 68 and 69 are also dedicated to displaying red and blue still images and moving images. A frame memory 70 is a frame memory for communication used between the frame memory 67 and a recording device 85 described later. Similarly, 71 and 72 are frame memories for communication used between the frame memories 68, 69 and the recording device 85, and 87. Is an input 3-state buffer for buffering green image data during dubbing. Similarly, 89 and 91 are input 3-state buffers for buffering red and blue image data during dubbing.

Reference numeral 88 is a green output 3-state buffer at the time of dubbing, 90 and 92 are output 3-state buffers for buffering red and blue image data at the time of dubbing, and 80 is a recording device 85 to the frame memory 70. 3 is a 3-state buffer that is enabled when image data is written in, and similarly, 82 is a 3-state buffer that is enabled when writing image data from the recording device 85 to the frame memory 71 and 84. 73 is a three-state buffer that is enabled when image data is written from the frame memory 70 to the frame memory 67. Similarly, 75 is image data written from the frame memory 71 to the frame memory 68, and 77 is written from the frame memory 72 to the frame memory 69. It is a 3-state buffer that is sometimes enabled. Reference numeral 85 is a recording device.

Next, the operation will be described. <Data transmission during dubbing> In FIG. 11, the image data recorded in the recording device 85 is reproduced in the order of green, red, and blue, and each of them has a 3-state buffer 8.
The data is stored in the frame memories 70, 71, 72 through 0, 82, 84 in synchronization with the read clock of the recording device 85. Thereafter, the respective image data stored in the frame memories 70, 71, 72 are read out, pass through the three-state buffers 73, 75, 77, and are synchronized with the image display clock. 68, 69. The image data stored in the frame memories 67, 68, 69 are read out and converted into analog data by the D / A converters 64, 65, 66.
In this way, the color image is reproduced and displayed on the display circuit (not shown).

Here, the frame memories 67, 68, 69
The same data as the image data for image display transferred from the D / A converters 64, 65, 66 to the D / A converters is transmitted to the other device (not shown) for dubbing via the 3-state buffers 88, 90, 92. At this time, the 3-state buffers 79, 81, 83, 74, 76, 78, 87, 8
The outputs of 9 and 91 are high impedance.

<Reception of data during dubbing>
First, image data for dubbing is sent from a partner device side (not shown), green image data is 3-state buffer 87, red image data is 3-state buffer 89,
The blue image data passes through the 3-state buffer 91 and is stored in the frame memories 67, 68, 69. When the image data stored in the frame memories 67, 68, 69 are read, they pass through the three-state buffers 74, 76, 78, respectively, and are stored in the frame memories 70, 71, 72 in synchronization with the image display clock. Transferred. After that, the respective image data stored in the frame memories 70, 71, 72, when read, are sent to the recording device 85 through the 3-state buffers 79, 81, 83. The recording device 85 captures image data from the three-state buffers 79, 81, and 83 in synchronization with its own writing clock and records a color image on a recording medium (not shown). At this time, the 3-state buffers 88, 90, 9
The outputs of 2, 73, 75, 77, 80, 82 and 84 are high impedance.

As an approximation technique, Japanese Patent Laid-Open No. 2-159 is used.
No. 191, there is disclosed a technique for storing a video signal in a semiconductor memory and transferring the stored video data via a system bus. Also, Japanese Patent Laid-Open No. 2-2
There is a Japanese Patent No. 20580, which discloses a technique of storing data at two types of data rates and reading the data at two types of data rates in a still image storage / playback apparatus.

[0008]

Since the conventional still image dubbing apparatus is configured as described above, the data rate (transfer rate) at the time of dubbing is the same as the data rate of the image display, which is extremely high speed. . Currently, the sampling clock for composite and RGB image display is about 1
It is around 5 MHz, and data is transferred at high speed at a speed according to this clock. As a result, crosstalk of other signal lines, unnecessary radiation, timing relationship between data and clock,
There is a problem in that the influence of each of the signal attenuations is large and it is necessary to consider this.

Further, since data for image display is used for transmission / reception, horizontal synchronization signals and vertical synchronization signals are also transmitted / received at the same data rate as image display. Since the horizontal and vertical sync signals are always the same for all images, there is a problem in that it is not necessary to dab. Or, in the image display section other than the horizontal and vertical sync signals, some areas at both ends of the screen actually displayed are not used, and there is a problem that dubbing that section is a wasteful operation. It was

Further, when dubbing, each RGB image data is transmitted and received at the same time, so a large number of dubbing terminals are required. As a result, the size of the connector for dubbing becomes large, resulting in various problems such as a reduction in space efficiency and poor usability. Further, there is a problem that erroneous recording often occurs due to a connection failure or a dubbing operation due to no connection of the connector cable.

The invention of claim 1 is to solve the above problems. When the data rate is set lower than the data rate of image display, crosstalk to other signal lines is unnecessary. Still image dubbing that can significantly reduce the effects of radiation, monitoring of data and clock timing, and the effects of signal attenuation, and can also transfer a large amount of data in a short time by increasing the data rate The purpose is to obtain the device.

It is an object of the present invention to provide a still picture dubbing device which can reduce the number of data lines and the number of dubbing terminals and can reduce the number of signal lines between the transmitting side and the receiving side.

It is an object of the present invention to provide a still image dubbing apparatus capable of shortening dubbing time by omitting a synchronizing signal and an unnecessary signal on the screen from image display data.

It is an object of the present invention to provide a still image dubbing device which helps set the number of dubbing sheets and is easy to use.

It is an object of the present invention to provide a still image dubbing apparatus, which can be selected in function depending on the purpose of dubbing and is easy to use.

According to the sixth aspect of the present invention, the still image signal and the predetermined additional information can be processed independently, and after the dubbing, the additional information can be displayed or erased on the screen and can be edited. An object of the present invention is to obtain a still image dubbing device that is easy to use.

It is an object of the present invention to provide a still image dubbing device capable of preventing erroneous recording during dubbing in a cable unconnected state.

[0018]

A still image dubbing apparatus according to the invention of claim 1 has a structure for selecting a clock for dubbing, which clock has a data rate at least slower or faster than the data rate of image display. Is.

A still image dubbing apparatus according to a second aspect of the present invention has a structure in which a still image is serially transmitted for each color by using a signal line for transmitting a still image signal for a maximum of one color.

A still image dubbing apparatus according to a third aspect of the present invention has a structure for performing dubbing with image display data from which a synchronizing signal and a still image signal forming an end portion of a display screen are removed.

A still image dubbing apparatus according to a fourth aspect of the present invention has a structure in which the number of recordings on the transmitting side is transmitted to the receiving side and the number of recordings is displayed on the receiving side.

A still image dubbing apparatus according to a fifth aspect of the present invention has a structure for selecting either one of a still image compatible data transfer and a plurality of still image compatible data transfers. is there.

A still image dubbing apparatus according to a sixth aspect of the present invention has a structure for separately recording data of a still image signal and predetermined additional information and recording the data in different areas.

A still image dubbing apparatus according to a seventh aspect of the present invention is provided with a configuration for issuing a warning or canceling dubbing if the electrical connection state with the dubbing destination partner apparatus is not connected. It is a thing.

[0025]

In the still image dubbing apparatus according to the invention of claim 1, when dubbing, the data transfer is performed by selecting a clock that obtains a data rate that is at least slower and higher than the data rate of the image display. It can be freely set according to the purpose of use.

In the still image dubbing apparatus according to the second aspect of the present invention, a still image signal for each color is transmitted in a predetermined transfer order using a signal line for transmitting a still image signal for one color between the transmitting side and the receiving side. Therefore, the number of dubbing terminals for transmitting and receiving the RGB image data can be reduced, and the size of the connector can be reduced.

In the still image dubbing apparatus according to the invention of claim 3, the still image signal forming the edge of the display screen is removed before the transfer and is generated after the transfer. Therefore, the horizontal and vertical synchronizing signals and the display screen are displayed. The still image signal forming the end of the dubbing can be removed during the dubbing transfer, and can be generated after the dubbing transfer.

In the still image dubbing apparatus according to the invention of claim 4, since the number of recordings on the transmitting side is transmitted to the receiving side and can be displayed on the receiving side, the receiving side can grasp the number of recordings on the transmitting side.

In the still image dubbing apparatus according to the invention of claim 5, data transfer corresponding to one still image and data transfer corresponding to a plurality of still images can be freely set. Therefore, when dubbing one still image and when dubbing a plurality of still images. You can freely specify the still images to be dubbed at once and depending on the purpose of use.

In the still image dubbing apparatus according to the invention of claim 6, the still image signal and the predetermined additional information are separately transferred from the transmitting side and recorded in different areas on the receiving side. Additional information such as date and title,
Each can be transferred independently.

The still image dubbing apparatus according to the invention of claim 7 outputs a warning according to an electrically unconnected state between the transmitting side and the receiving side, and stops the dubbing. Therefore, between the transmitting side and the receiving side, The dubbing operation when the cable is not connected can be stopped.

[0032]

EXAMPLES Example 1. An embodiment of the present invention will be described below with reference to the drawings. 1 is a block diagram showing a configuration of a still image dubbing apparatus according to an embodiment of the invention of claim 1,
In the figure, 100-1 is a transmitting-side still image dubbing device,
Reference numeral 100-2 is a receiving side still image dubbing apparatus. In the second embodiment, the system is a combination of both still image dubbing devices for transmission and reception. 10-1, 10-2, 11-1,
Reference numerals 11-2, 12-1, and 12-2 are frame memories having the same configuration as the communication frame memory of FIG.
Reference numerals 1, 25-2 are recording devices (recording means, first and second recording means) having the same configuration as the recording device 25 of FIG.
-1, 37-2 are clock selector circuits (selecting means, first selecting means) having the same configuration as the clock selector circuit of FIG. 3, 38-1, 38-2 are date, title,
Display circuits (display means) for displaying display information such as additional information, 39-1 and 39-2 are warning generators (generating means) that generate warnings such as a buzzer, and 40-1 and 40-2 are devices and Control circuit (transfer means, first and second transfer means, judging means, stopping means, reading means) equipped with a microcomputer for controlling the circuit, 41-1 and 41-2 are the other side still image dubbing apparatus. Interface circuit for controlling communication (transfer means, first and second transfer means), 42-
1, 42-2 are input devices (second selection means) equipped with keys and switches for inputting information such as characters and numbers,
Reference numerals 49-1 and 49-2 are clock generation circuits (clock generation means) that generate a plurality of different clocks for obtaining a data rate in the range of low speed to high speed with respect to the data rate at the time of image display.

FIG. 2 is a block diagram showing a concrete structure of the still image dubbing apparatus shown in FIG. 1. In FIG.
Is an A / D capable of 3-state output that converts green image data (still image or moving image) from analog to digital
Converter, similarly, 2 and 3 are red and blue A / D
A converter 4 is a D / A converter for converting green image data from digital to analog, 5 and 6 are red and blue D / A converters respectively, 7 is a green still image, a frame memory dedicated to displaying a moving image, Similarly 8, 9
Is a frame memory dedicated to displaying red and blue still images and moving images, 10 is a frame memory used for communication between a recording device 25 and a frame memory 7 described later, and 11 and 12 are also the recording device 25 and frame memories 8 and 9. It is a frame memory used for communication between devices.

13 is a 3-state buffer for transmitting data from the frame memory 10 to the frame memory 7, and 15 and 17 are similarly 3-state buffers for transmitting data from the frame memories 11 and 12 to the frame memories 8 and 9, respectively. 14 is a 3-state buffer for transmitting data from the frame memory 7 to the frame memory 10,
Similarly, 16 and 18 are 3-state buffers for transmitting data from the frame memories 8 and 9 to the frame memories 11 and 12, and 19 is a 3-state buffer for transmitting data from the frame memory 10 to the recording device 25.
1, 23 are the frame memories 11 and 12 to the recording device 25.
For transmitting data to the frame memory 10, 20 for transmitting data from the recording device 25 to the frame memory 10, and similarly, 22 and 24 for transmitting data from the recording device 25 to the frame memories 11 and 12. It is a 3-state buffer. Reference numeral 25 is a recording device, which incorporates a tape, a disk, and the like. Reference numeral 26 is a bidirectional buffer for dubbing. A signal line 27 transmits each image data in the order of green, red, and blue. In this way, the green, red, and blue image data are transmitted on the single signal line 27 during dubbing. Reference numeral 35 is a memory control circuit (removing means), and 46 is a signal generating circuit (signal generating means), which corresponds to the green corresponding to the green deleted from the recording device 25 from a counterpart device (still image dubbing device) not shown, A part corresponding to the vertical synchronization signal and a signal part not used near both ends of the displayed screen are generated. 47 and 48 are signal generating circuits (signal generating means) corresponding to red and blue, respectively.

FIG. 3 is a block diagram showing a circuit configuration of a main part during dubbing transmission in the first embodiment.
FIG. 4 is a block diagram showing a circuit configuration of a main part at the time of receiving dubbing in the first embodiment. 3 and 4, the memory control circuit 35 described above is
Frame memory 10, 1 for each of red and blue communication
1, 12 and 3-state buffers 19, 21, 23
Control 20, 22, 24. Reference numeral 36 denotes a counter circuit, which counts the total number of pixels per image and transmits an end signal to the memory control circuit 35 after the count is completed. 37
Is a selector circuit, and is a frame memory 10, 11, 1
2 and the clock supplied to the counter circuit 36 are selected.

Next, the operation will be described. <Recording / Reproducing Operation> In FIGS. 1 to 3, during recording, green image data is converted from analog to digital by the A / D converter 1 and written in the frame memory 7. After this writing is completed, the image data is transferred from the frame memory 7 to the frame memory 10. Here, signals (first portion) corresponding to the horizontal and vertical synchronizing signals and unnecessary unnecessary data near both ends of the display screen are displayed. When data is transferred for each signal (second portion), write enable of the frame memory 10 is disabled,
The first and second portions are controlled so as not to be written in the frame memory 10. This control is performed by the memory control circuit 35.
It is executed in. After that, the image data is read from the frame memory 10 in synchronization with the clock of the recording device 25, sent to the recording device 25, and recorded on the recording medium. After the green recording is completed in this way,
As in the case of green, recording is done in order of red and blue.

At the time of reproduction, the operation opposite to that at the time of recording is performed. That is, when data is transferred from the frame memory 10 to the frame memory 7, the signals (first and second portions) deleted during recording are generated by the signal generation circuit 46 and added to the frame memory 7. Remembered. When adding this signal, the frame memory 10
The read enable of is set to disable. This control is executed by the memory control circuit 35. The red and blue image data are also operated in the same manner as in the case of green. In this way, the horizontal and vertical synchronization signals (first portion) are stored in the frame memories 10, 11, 12 and the recording medium (not shown) of the recording device 25.
And the unnecessary signal (second portion) at both ends of the screen is controlled so that neither is recorded.

<Operation of the data transmitting side during dubbing> The image data (still image data) recorded in the recording device 25 is
In synchronization with the clock when the recording device 25 reproduces, the frame memories 10, 11, and
Stored in 12. First, in order to transmit the green image data stored in the frame memory 10, the memory control circuit 35 sets the frame memory 10 to read enable and the 3-state buffer 19 to enable. The counter circuit 36 and the frame memory 10 operate in synchronization with the clock selected by the clock selector circuit 37, and the reading of the image data from the frame memory 10 ends, that is, the number of pixels corresponding to the read image data. When the counter circuit 36 finishes counting, the count value is transmitted to the memory control circuit 35. Upon receiving the count value, the memory control circuit 35 sets the frame memory 10 to read disable and the 3-state buffer 19 to disable, and then enables the frame memory 11 to read enable and the 3-state buffer 21. Then, the memory control circuit 35
Reads the red image data from the frame memory 11 in the same procedure as in the case of the frame memory 10. When the reading is completed, the frame memory 12 is read-enabled, the 3-state buffer 23 is enabled, and the blue color is read from the frame memory 12. Read image data.

In this way, the frame memories 10, 1
The green, red, and blue image data read out from Nos. 1 and 12 are sent to the receiving side partner device on the same data line via the bidirectional buffer 26. Further, the clock selected by the clock selector circuit 37 is sent as it is to the receiving side partner device.

<Operation of Data Receiving Side at Dubbing> Next, the green image data (still image data) sent from the transmitting side partner device passes through the bidirectional buffer 26 and the three-state buffer 20 first. It is written in the frame memory 10. The operation written in the frame memory 10 is as follows. That is, under the control of the memory control circuit 35, the frame memory 10 is set to the write enable and the 3-state buffer 20 is set to the enable. The clock sent from the partner device on the transmitting side is selected by the selection of the clock selector circuit 37. The counter circuit 36 and the frame memory 10 operate in synchronization with the selected clock, and the writing of the green image data from the frame memory 10 is completed, that is, the total number of pixels corresponding to the written image data is the counter circuit 36. When counted by, the count value is transmitted to the memory control circuit 35. Upon receiving the count value, the memory control circuit 35 sets the frame memory 10 to write disable, the 3-state buffer 20 to disable, and then the frame memory 11 to write enable,
Only the 3-state buffer 22 is enabled.
Subsequently, the memory control circuit 35 writes the red image data in the frame memory 11 in the same procedure as in the case of the frame memory 10, and when the writing is completed, the frame memory 12 is write-enabled and only the three-state buffer 24 is enabled. Set to frame memory 1
Write the blue image data in 2. When the writing of the green, red, and blue data in the frame memories 10, 11, and 12 is completed in this way, the recording device 25 is subjected to the same procedure as the recording operation to the recording device 25 described above.
Each image data is recorded in.

<Operation of transmitting / receiving the number of recorded sheets and displaying>
FIG. 5 is a flowchart illustrating a procedure of sending the recorded number of sheets on the transmitting side to the receiving side and displaying the number on the receiving side in the first embodiment. Transmission side still image dubbing apparatus 100-
In No. 1, the number of recorded sheets of the recording medium is read by the recording device 25-1 (step ST51), and the recorded number of sheets is sent to the control circuit 40-1 and stored and held (step ST52). The control circuit 40-1 sends the received number of recorded sheets to the interface circuit 41-1 (step ST53). The data indicating the number of recorded sheets is transmitted to the interface circuit 41 on the receiving side via the interface circuit 41-1 (step ST54). The receiving-side still image dubbing apparatus 100-2 receives the data indicating the number of recorded sheets via the interface circuit 41 (step ST55), and stores and holds the data in the control circuit 40-2 (step ST56). The control circuit 40-2 sends the received data indicating the number of recorded sheets to the display circuit 38-2, and the number of recorded sheets is displayed by the display circuit 38-2 (step ST57).

As described above, according to the first embodiment, the following effects can be obtained. That is, (1) the transfer clock for dubbing can be selected,
The data rate can be set freely. For this reason, transfer during dubbing is performed at a data rate lower than the data rate used for image display, and as a result, crosstalk of other signal lines, unwanted radiation, timing relationship between data and clock, signal The effect on the attenuation of is suppressed.

(2) When transferring during dubbing, the horizontal and vertical synchronizing signals (first part) and unnecessary signals (second part) at both ends of the screen are omitted, and only necessary image data is transferred. Therefore, the time can be shortened, the amount of data to be transferred can be minimized, and the transmission efficiency can be improved.

(3) When the data transfer of green is completed, image data of each color such as red, blue, etc. is output with a time difference, so that only one signal line is required. Therefore, the number of dubbing terminals can be reduced and the connector can be designed to be small, and the space efficiency can be improved.
The same effect can be obtained with Y, RY, and BY color difference signals.

(4) Since the information on the number of recorded sheets on the transmitting side can be displayed on the receiving side, it helps setting the number of dubbing sheets, which improves usability.

Example 2. Next, the manual dubbing function when the configuration of the above-described first embodiment is used will be described. The above functions can be designated from the input device 42-1 shown in FIG.

<Manual Dubbing Function> Normally, it is impossible to format a magnetic tape in a short time like a magnetic disk. There 12
A description will be given below by giving a standard that formatting will take 120 minutes for a 0-minute tape.

When a still image is recorded using a magnetic tape, it is a general use method to record the still image in the unformatted condition in order from the beginning of winding. Therefore, for a still image recorded on a magnetic tape, a serial number (1, 2, 3, ..., N-1,
By adding (n, n is a natural number), still images can be managed by numbers, and at the same time, retrieval can be easily performed. In this embodiment, dubbing is performed using the numbers given to the individual images as described above.

Next, the operation will be described. FIG. 6 is a flow chart for explaining the operation of the manual dubbing function according to the embodiment of the invention of claim 5. First, on the transmission side, the reproduction image number of the transmission side is set by the input device 42-1 (step ST61), and the reproduction image (still image) corresponding to the reproduction image number is reproduced and displayed on the display circuit 38-1 ( Step ST62). At this time, the reproduced image is displayed not only on the display circuit 38-1 on the transmission side but also on the display circuit 38 on the reception side.
It is also displayed at -2. In the receiving side, the image data transmitted from the transmitting side is written in the frame memories 10, 11 and 12 (FIG. 1).
The data is written to the frame memories 7, 8 and 9 via the state buffers 13, 15 and 17, and the data is further D
The signals are converted into analog signals by the / A converters 4, 5, 6 and reproduced and displayed (step ST63).

Next, the user looks at the reproduced image on the receiving side and determines whether or not to record (dubbing). Therefore, in the transmitting-side still image dubbing apparatus 100-1, if an instruction to record (dubbing) is input from the input device 42-1 (step ST64), the recording number of the receiving side is subsequently input by the input device 42-1. Is set, and the recording number is assigned to the currently reproduced image (step ST65). The reproduced image and its recording number are transmitted to the receiving side (step ST6).
6) The data is recorded in the recording device 25-2 on the receiving side.
Further, a dubbing instruction for another still image is input by the input device 4.
When input from 2-1, the process returns to step ST61 (step ST67), and the above operation is repeated.

Here, in the above manual dubbing function, the control by the transmitting side still image dubbing apparatus 100-1 was mainly performed, but the present invention is not limited to this, and the receiving side still image dubbing apparatus is not limited to this. The control may be performed by 100-2, or the control on the transmission side and the control on the reception side may be separated, and the still image dubbing apparatus 10 on one transmission side may be separated.
0-1 takes charge of setting a reproduction image number (step ST61), recording judgment to the receiving side (step ST64), and reproduction of another still image (step ST67), and the other received still image dubbing device 100-2. Recording on the receiving side (step ST65) and reproduction of another still image (step ST66) may be performed.

As described above, with the manual dubbing function, when dubbing for each still image, a desired still image can be specified manually.

Example 3. Next, the auto dubbing function according to the configuration of the first embodiment will be described. The above functions can be designated from the input device 42-1 shown in FIG.

<Autodubbing Function> FIG. 7 is a flow chart for explaining the operation of the autodubbing function according to another embodiment of the invention of claim 5. On the transmitting side, the reproduction image number is set to the start number and the end number from the input device 42-1 (step ST71). Further, with respect to the recording number on the receiving side, only the leading number is set from the input device 42-1 on the transmitting side (step ST72). In the setting of step ST72, since the total number of dubbing sheets can be calculated from the setting of step ST71, the process of setting the last recording number on the receiving side is omitted. Next, dubbing from the transmitting side to the receiving side is started (step ST73), and the transmitting side first displays the reproduced image (still image) corresponding to the reproduced image number at the head of the display circuit 38-.
The reproduction image is displayed in 1 (step ST74), and the reproduction image corresponding to the reproduction image number at the head and the recording number thereof are transmitted to the receiving side (step ST75). On the receiving side, the recording device 25
At -2, the reproduced image is recorded according to the recording number received from the transmitting side. Thereafter, as for the reproduced images up to the end number, as in the case of the above-mentioned start number, steps ST74, S
At T75, they are displayed and transmitted in order. In this way, when the dubbing process set in steps ST71 and ST72 is completed on both the transmitting side and the receiving side (step ST
76), the automatic dubbing operation ends. As described above, in the case of automatically dubbing a plurality of still images, it is possible to easily transfer the still images only by designating the leading and trailing still images.

Here, in the above auto dubbing function, the control by the transmitting side still image dubbing apparatus 100-1 was mainly, but the present invention is not limited to this, and the receiving side still image dubbing apparatus is not limited to this. The above control may be performed by 100-2, or the control on the transmission side and the control on the reception side may be separated and shared among the still image dubbing apparatuses.

An example in which a magnetic tape is used as the recording medium has been described for both the manual and automatic dubbing functions, but the present invention is not limited to this, and a storage medium such as a magnetic disk may be used. The same effect is obtained.

Although not shown in Examples 2 and 3,
By configuring both the manual and auto dubbing functions to be freely switchable, only one still image or a plurality of still images can be selectively used according to the user's purpose of dubbing at once. That is, the manual or auto mode can be freely selected according to the purpose of use, and the usability is improved.

Example 4. FIG. 8 is a flow chart for explaining a procedure of transferring / displaying attached information according to an embodiment of the invention of claim 6. In the fourth embodiment, in the configuration of FIG. 1 described above, a function of transmitting and displaying attached information such as date and title to the partner device is provided. In this case, the transmitting side and receiving side interface circuits 41-1 and
41-2 is communicated.

In the configurations of FIGS. 1 and 2, when dubbing is instructed from the input device 42-1 on the transmitting side, a reproduced image is read from the recording device 25 and the frame memory 1 is read.
0, 11, 12 are written to the frame memories 10, 1
1, 12 are read. Therefore, in the fourth embodiment, the auxiliary information such as the date and title and the reproduced image are stored in advance so that the storage areas on the recording medium (magnetic tape, magnetic disk, etc.) are different, and dubbing is performed. The above information is also dubbed according to the instructions. In addition, in the dubbing process, the still image is also dubbed together with the attached information.
In FIG. 8, description of the still image dubbing operation is omitted.

After the dubbing instruction is input according to the procedure of FIG. 8, the attached information is read from the recording device 25 (step ST81) and directly sent to the control circuit 40-1 shown in FIG. (Step ST82). The attached information stored and held in the control circuit 40-1 is transmitted from the transmission side to the reception side (step ST83) and received by the reception side (step ST84) via the interface circuits 41-1 and 41-2. It is stored and held in the control circuit 40-2 (step ST85). Further control circuit 40-
The auxiliary information stored and held in 2 is recorded in a storage area other than the reproduced image on the storage medium of the recording device 25-2 (step ST86). Then, at the time of reproduction, the attached information is read from the recording device 25-2 and displayed on the display circuit 38-2 via the control circuit 40-2. Here, when the operation of the display circuit 38-2 is stopped, the display is not performed.

As described above, according to the fourth embodiment,
The still image signal and predetermined additional information can be processed independently, and it is possible to display or delete the screen display of the additional information even after the dubbing, and it is possible to edit, which improves usability.

The dubbing of the attached information can be arbitrarily designated by the input device alone or as the attached information and the still image. Of course, the exclusion from the dubbing target can also be designated by the input device.

Example 5. FIG. 9 is a block diagram showing the structure of a still image dubbing apparatus according to an embodiment of the invention of claim 7, in which the reference numerals 53-1 and 53-2 are connectors (connecting means) 54 for image data transfer. Reference numerals -1 and 54-2 are I / O ports capable of inputting / outputting data controlled by the control circuits 40-1 and 40-2, respectively, and are connected to the connectors 53-1 and 53-2 by one bit. There is.
Reference numeral 55 is a cable (connecting means) for transferring image data on the transmitting side and the receiving side, and 56 is a pull-up resistor.

Next, the operation will be described. In this embodiment, when the cable 55 for transferring image data is not connected, a warning is issued and the dubbing operation is stopped.

FIG. 10 is a flow chart for explaining an error detection procedure at the time of image data transfer operation according to the fifth embodiment. I / O ports 54-1 and 5-5 except during dubbing operation
4-2 is an input, and each has a pull-up resistor 5
It becomes high level by 6-1 and 56-2. During the dubbing operation, the I / O port 54-1 is output only on the transmitting side and becomes low level. If the image data transfer cable 55 is connected, the receiving side I / O port 54-2 should be at the low level, and if it remains at the high level, the cable 55 is not connected. It will be. Further, in the following description, the unconnected state of the cable 55 is regarded as an error, but the description of other general errors is omitted.

Therefore, in FIG. 10, the receiving side still image dubbing apparatus 100-2 monitors the level of the I / O port 54-2 by the control circuit 40-2, so that the cable 55 for image data transfer is not connected. Can be found. That is, when the control circuit 40-2 detects the disconnection (step ST101), it issues a command to the warning generator 39-2 to generate a warning by the buzzer (step ST1).
02). At the same time, the control circuit 40-2 stops the dubbing operation (step ST103). In this way, the user recognizes that the cable is not connected.

As described above, according to the fifth embodiment,
Since the warning is output and the dubbing is stopped according to the electrical disconnection state between the transmitting side and the receiving side, erroneous recording can be prevented.

In the fifth embodiment, a voice warning is issued when the cable 55 for transferring image data is not connected. However, the present invention is not limited to this, and a warning message is displayed on the display circuit. May be displayed, or a configuration that prompts the user to issue a warning using both voice and display may be applied.

Further, an embodiment in which two or more of the first to fifth embodiments described above are combined can be applied to the present invention.

[0070]

As described above, according to the first aspect of the present invention, the data transfer is performed by selecting the clock that obtains a data rate that is at least slower or faster than the data rate of the image display during dubbing. , The data rate for dubbing can be freely set according to the purpose. Therefore, when the data rate is set lower than the image display data rate, crosstalk to other signal lines, unnecessary radiation,
A still image dubbing device that can significantly reduce the monitoring of data and clock timings and the effects of signal attenuation, and can also transfer a large amount of data in a short time by increasing the data rate. It is effective.

According to the second aspect of the present invention, a still image signal for each color is transmitted in a predetermined transfer order using a signal line for transmitting a still image signal for one color between the transmitting side and the receiving side. Therefore, the number of dubbing terminals for transmitting and receiving the RGB image data can be reduced, and the size of the connector can be reduced. Therefore, the number of data lines and the number of dubbing terminals can be reduced, and a still image dubbing device that can achieve a reduction in the number of signal lines between the transmitting side and the receiving side can be obtained.

According to the third aspect of the present invention, the synchronizing signal and the still image signal forming the end of the display screen are removed from the image display data before the transfer and generated after the transfer. The vertical sync signal and the still image signal that forms the edge of the display screen are removed during the dubbing transfer,
It can occur after transfer of dubbing. Therefore, it is possible to obtain a still image dubbing device that can reduce the dubbing time.

According to the fourth aspect of the invention, since the number of recorded sheets on the transmitting side is transmitted to the receiving side and can be displayed on the receiving side, the receiving side can grasp the number of recorded sheets on the transmitting side. Therefore, there is an effect that it helps to set the number of dubbing sheets, and a still image dubbing apparatus with improved usability can be obtained.

According to the fifth aspect of the invention, the data transfer corresponding to one still image and the data transfer corresponding to a plurality of still images can be freely set. Therefore, when dubbing one still image and when a plurality of still images are dubbed, You can freely specify the still images to be dubbed at once and depending on the purpose of use. Therefore, the function can be selected according to the purpose of use, and the still image dubbing device with improved usability can be obtained.

According to the sixth aspect of the present invention, the still image signal and the predetermined additional information are separately transferred from the transmitting side and recorded in different areas on the receiving side. Additional information such as date and title can be transferred independently. Therefore, the still image signal and predetermined additional information can be processed independently, and it is possible to display or turn off the screen display of the additional information even after dubbing, and it is also possible to edit, so still image dubbing with improved usability There is an effect that the device can be obtained.

According to the seventh aspect of the present invention, since the warning is output and the dubbing is stopped according to the electrical disconnection state between the transmitting side and the receiving side, the transmitting side and the receiving side are The dubbing operation when the cable is not connected can be stopped. Therefore, there is an effect that a still image dubbing device capable of preventing erroneous recording when the cable is not connected can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a still image dubbing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a specific configuration of the still image dubbing device shown in FIG.

FIG. 3 is a block diagram showing the configuration of a still image dubbing apparatus on the data transmission side during dubbing in the first embodiment.

FIG. 4 is a block diagram showing the configuration of a still image dubbing apparatus on the data receiving side during dubbing in the first embodiment.

FIG. 5 is a flowchart illustrating a procedure of sending a recorded number of sheets on the transmitting side to the receiving side and displaying the number on the receiving side in the first embodiment.

FIG. 6 is a flowchart illustrating an operation of a manual dubbing function according to an embodiment of the invention of claim 5;

FIG. 7 is a flow chart illustrating an operation of an auto dubbing function according to another embodiment of the invention of claim 5;

FIG. 8 is a flowchart illustrating a procedure for transferring / displaying attached information according to an embodiment of the invention of claim 6;

FIG. 9 is a block diagram showing a configuration of a still image dubbing apparatus according to an embodiment of the invention of claim 7;

FIG. 10 is a flowchart illustrating an error detection operation during an image data transfer operation according to the fifth embodiment.

FIG. 11 is a block diagram showing a configuration of a conventional still image dubbing apparatus.

[Explanation of Codes] 25-1 Recording Device (Recording Means) 25-2 Recording Device (First Recording Means / Second Recording Means) 27 Signal Line 35 Memory Control Circuit (Removing Means) 37-1, 37-2 Clock selector circuit (selection means, first selection means) 38-1, 38-2 Display circuit (display means) 39-1, 39-2 Warning generator (generation means) 40-1, 40-2 Control circuit ( Transfer means / Transmission means /
First and second transfer means / determination means / stop means / reading means) 41-1, 41-2 Interface circuit (transfer means / transmission means) 42-1, 42-2 Input device (second selection means) 46, 47, 48 Signal generating circuit (signal generating means) 49-1, 49-2 Clock generating circuit (clock generating means) 53-1, 53-2 Connector (connecting means) 55 Cable (connecting means)

Claims (7)

[Claims] 1. A clock generating means for generating a plurality of different clocks for obtaining a data rate at least slower and faster than a data rate for image display, and one of a plurality of different clocks generated by the clock generating means during dubbing. A still image dubbing apparatus comprising: a selection unit that selects a clock; and a transfer unit that transfers data at a data rate based on the clock selected by the selection unit. 2. A still image dubbing apparatus having a signal line for transmitting a still image signal of at most one color between a transmitting side and a receiving side, wherein a plurality of data rates at least lower than or higher than the data rate of image display are obtained. A clock generating means for generating different clocks, a selecting means for selecting one clock from a plurality of different clocks generated by the clock generating means at the time of dubbing, and a color at a data rate based on the clock selected by the selecting means. A still image dubbing apparatus, comprising: a transmission unit that transmits a still image signal for each color on the signal line in a predetermined transfer order when data is transferred for each component. 3. A still image dubbing apparatus for dubbing image display data including a still image signal and a synchronization signal,
Clock generating means for generating a plurality of different clocks to obtain a data rate at least slower and faster than the data rate of image display, and selection for selecting one clock from the plurality of different clocks generated by the clock generating means during dubbing Means, transfer means for transferring data at a data rate based on the clock selected by the selecting means, and at least the synchronizing signal and the end portion of the display screen are formed from the image display data before the transfer by the transferring means. A removal means for removing the still image signal; and a signal generation means for generating the synchronization signal removed by the removal means and the still image signal forming the end portion of the display screen after the transfer by the transfer means. Still image dubbing device. 4. A still image dubbing apparatus for dubbing a still image between a transmitting side and a receiving side, wherein the transmitting side records a still image, and a recording of the still image recorded in the recording means. A reading means for reading the number of sheets, a clock generating means for generating a plurality of different clocks for obtaining a data rate at least slower than the data rate for image display, and one clock from the plurality of different clocks generated by the clock generating means. And a transfer means for transferring to the receiving side the number of recording sheets read by the reading means at a data rate based on the clock selected by the selecting means, and the receiving side is the transfer means. A still image dubbing apparatus having a display unit for displaying the number of recorded images transferred by. 5. A clock generating means for generating a plurality of different clocks to obtain a data rate at least slower and faster than the data rate of image display, and one of a plurality of different clocks generated by the clock generating means during dubbing. First selection means for selecting a clock, first transfer means for performing data transfer corresponding to one still image at a data rate based on the clock selected by the selection means, and the clock selected by the selection means A second transfer means for transferring data corresponding to a plurality of still images at a data rate based on the data rate; and a selection means for selecting one of the first and second transfer means to be used for dubbing. Still image dubbing device. 6. A still image dubbing apparatus for dubbing a still image signal and predetermined additional information between a transmitting side and a receiving side, wherein the transmitting side has a data rate that is at least lower than or higher than a data rate of image display. And a clock generating means for generating a plurality of different clocks to obtain
Selecting means for selecting one clock from a plurality of different clocks generated by the clock generating means, and first transfer means for transferring data of a still image signal at a data rate based on the clock selected by the selecting means. Second transfer means for transferring the data of the predetermined additional information at a data rate based on the clock selected by the selection means, wherein the receiving side has the data transferred by the first transfer means. A first recording means for recording the image signal in the first area, and a second recording means for recording the predetermined additional information data-transferred by the second transfer means in the second area. Characteristic still image dubbing device. 7. A connection means for electrically connecting to a destination device which is a dubbing destination, a clock generation means for generating a plurality of different clocks for obtaining a data rate at least slower than a data rate of image display, and the dubbing method, Selecting means for selecting one clock from a plurality of different clocks generated by the clock generating means; transfer means for transferring data to the counterpart device at a data rate based on the clock selected by the selecting means; and the connection Determination means for determining the connection state of the means, generating means for issuing a warning when the determination result of the determination means is not connected, and dubbing when the determination result of the determination means is not connected A still image dubbing device, which is provided with a stopping means for stopping.