JP2008172346A - Television and video signal reproducing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a user to confirm whether or not a television and a video signal reproducing apparatus have received control signals, and to enable the user familiar with a quick operating environment to perform comfortable operation. <P>SOLUTION: A microcomputer 22 has in a RAM 22c a control signal area for storing a plurality of control signals to be inputted on the basis of the key operation of a remote controller 26, causes an OSD circuit 28 to generate an OSD signal being a symbol corresponding to the stored control signals, superimposes it on a video signal, and displays it, acquires the control signals stored in the control signal area in the order of inputs and executes them, deletes symbols corresponding to the control signals whose execution is completed from the OSD signal, and deletes them from the video signal. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a television and a video signal reproducing apparatus.

  In recent years, devices with high processing capabilities such as mobile phones and game devices have been widely used, and remote control operation capability has been improved because users are accustomed to an operation environment with quick response. However, in a video signal reproducing apparatus such as a television, since it is not known whether or not the apparatus has received a remote control signal, the button operation may be repeated many times. As a result, an unintended operation was performed, and the user had to feel uncomfortable.

  There is input switching as a button operation that easily causes such a situation. This input switching is the operation that takes the most processing time of the microcomputer. Processing performed by this input switching is as follows: reception of a remote control signal → processing by a microcomputer → video output + OSD display. Therefore, even though the user sends a signal from the remote controller, the user does not know whether the signal is being received, so the remote controller is operated several times. Then, it takes time to display the target screen, which makes the user uncomfortable.

As a technique for informing the user of the operation status of the remote controller, when a control signal is received from the remote controller, an icon corresponding to the control signal is displayed at a predetermined position on the display screen for a certain period of time (Patent Document 1, etc.). It is known to blink the screen when receiving the control signal (Patent Document 2, etc.).
JP 2003-309778 A JP 2005-328173 A

  According to the techniques of the above-mentioned Patent Documents 1 and 2, although it can be confirmed whether or not the apparatus has received a control signal, it has not been possible to cope with the remote control operation ability of a user who is used to an early operation environment.

  The present invention has been made in view of the above problems, and is a television capable of confirming whether or not the apparatus has received a control signal and enabling a comfortable operation even for a user who is used to an early operation environment. Another object is to provide a video signal reproducing apparatus.

In order to solve the above problems, in the video playback apparatus of the present invention, a video signal playback unit that plays back a video signal, a control unit that controls the video signal playback unit to play back a desired video signal, and a user's And a control signal generating unit that generates a control signal based on an operation input and inputs the control signal to the control unit. The control unit stores a plurality of control signals input from the control signal generating unit. Control signal storage means, symbol display means for displaying a symbol corresponding to the stored control signal superimposed on the video signal, and control execution means for acquiring and executing the stored control signals in the order of input. And symbol erasing means for erasing the symbol corresponding to the control signal executed by the control execution means from the video signal.
In the above configuration, the control signal storage means stores a plurality of control signals input from the control signal generator, and the symbol display means superimposes and displays a symbol corresponding to the stored control signal on the video signal. The control execution means acquires and executes the stored control signals in the order of input, and the symbol erasure means erases the symbol corresponding to the control signal executed by the control execution means from the video signal.

  That is, a symbol corresponding to a control signal based on a user's operation input is displayed on the video image so that the user can recognize that the control signal has been received by the control unit, and the control signal is executed and processed. Even if another control signal is input before the process ends, it is stored in the control signal storage means and displayed as a symbol on the video, so that the user can visually recognize that a plurality of control signals are accepted by the control unit It becomes. The user can also recognize the number and type of control signals that are accepted.

  The symbol display means may be configured to superimpose the symbols so that the symbols are displayed in order from the lower right to the lower left. With this configuration, the symbols are not obstructed by viewing and are displayed in order, so that the order of acceptance of the control and the order of processing become clear at a glance and the convenience for the user is improved.

  Further, the symbol erasing means may be configured to display a symbol of an unexecuted control signal shifted to the right when the symbol is erased. With this configuration, it is easy to count the number of unexecuted processes, and it is possible to estimate the number of unexecuted processes by visually recognizing the distance indicated by the symbol from the lower right corner. Improves.

  Further, when a predetermined control signal is input, the control unit deletes the control signal stored in the control signal storage unit and terminates the control executed by the control execution unit, and then performs the predetermined control. It is good also as a structure provided with the control completion | finish means to perform a signal. According to this configuration, even when there are a plurality of unexecuted processes and a predetermined time is required until the process is completed, the user can perform an operation input that generates the predetermined control signal. All unexecuted processes can be canceled. That is, a predetermined operation is provided with a function as a cancel key.

  Further, the control signal generator may be a remote control device. That is, in recent years, any video signal reproducing apparatus is provided with a remote control device, and there are many configurations in which there is almost no operation panel or the like on the device body side. In addition, there are many functions that are assigned only to the remote control device, and there are cases where the operation of the device is hindered if the remote control device is eliminated. Therefore, the convenience of many users can be achieved by using a remote control device as the control signal generator.

  Further, the predetermined control signal may be a control signal generated by an operation input of a numeric keypad. The ten key is a concept including a channel key, which means a key in which keys corresponding to numbers are arranged side by side. That is, when a frequently used key such as a channel key is also provided with a function as a cancel key, it is possible to restart an operation at a desired timing, and to start a viewing process and a reproduction process.

  Furthermore, the control signal storage means may be configured to discard the input control signal without storing it when the number of stored control signals exceeds a predetermined number. In other words, the memory capacity can be avoided from being pressed and the processing capacity can be prevented from being compressed. Further, even if the remote control key is kept pressed in an unexpected situation, processing exceeding the processing capability of the control unit is not required.

  Further, as a more specific configuration example of the video signal reproduction device, a display that displays video on the screen, a video signal processing circuit that displays video corresponding to the input video signal on the screen, and a pulse of a predetermined format A remote control receiving circuit for receiving a remote control signal expressed by the above and generating a corresponding control signal, a plurality of keys for accepting operations, and a remote control transmission circuit for transmitting the remote control signal to the remote control receiving circuit. Corresponding by inputting the control signal from a remote control that sends out a remote control signal according to the operation of a plurality of keys in a predetermined format, an OSD circuit that generates an OSD signal for OSD display on the screen, and the remote control receiving circuit An operating input is received from the remote controller by detecting a key operation, and an OS corresponding to the received operating input In a television comprising a microcomputer for causing the OSD circuit to generate a signal, the microcomputer includes a RAM having a control signal area for storing the control signal, and a ROM storing a symbol corresponding to the control signal. If the received control signal is a key operation corresponding to the channel key, the control signal area is cleared. If the received control signal is a key operation other than the channel key, the empty area closest to the head of the control signal area is cleared. The control signal is stored in the control signal area, the OSD signal based on the symbol corresponding to the control signal stored in the control signal area is generated by the OSD circuit, and the process corresponding to the control signal stored at the head of the control signal area is performed. When the process is completed, the corresponding control signal is deleted from the control signal area and the control signal is The OSD display of symbols is stopped, the control signal of the control signal region is a structure to perform rearrangement so as to be stored from the beginning of the area in order.

As described above, according to the present invention, it is possible to provide a video signal reproduction device that allows a user to visually recognize that a plurality of control signals are received by the control unit.
Moreover, according to the invention concerning Claim 3, a user's convenience improves.
And according to the invention concerning Claim 4, a user's convenience improves.
Furthermore, according to the invention concerning Claim 5, a user's convenience improves.
Further, according to the invention of claim 6, it is possible to achieve convenience for many users.
According to the seventh aspect of the present invention, it is possible to start the operation again, the viewing process and the reproduction process at a desired timing.
According to the eighth aspect of the present invention, it is possible to avoid compression of the memory capacity and not to impose processing capacity. In addition, processing exceeding the processing capacity of the control unit is not required.
Furthermore, it is needless to say that in a more specific configuration as in claim 1, the same effects as those of the inventions of claims 2 to 8 described above are exhibited.

Hereinafter, embodiments of the present invention will be described in the following order.
(1) Television configuration:
(2) Input support processing:

(1) Television configuration:
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the present embodiment, description will be made by adopting a television capable of receiving and reproducing a television broadcast signal as the video signal reproducing device. However, if the device can reproduce the video signal, a recording medium (disc, video, etc.) is reproduced. Various devices such as a device, a recording medium reproducing device and a television combination machine can be employed.

  FIG. 1 is a block diagram showing an outline of the configuration of the television 100. As shown in the figure, the television 100 includes a tuner circuit 10, an external input terminal 11, a switch circuit 12, a video signal processing circuit 14, a display 16, an audio signal processing circuit 18, a speaker 20, The microcomputer 22 is configured to include a remote control receiving circuit 26, an OSD circuit 28, and a remote control 60.

  The tuner circuit 10, the video signal processing circuit 14, and the microcomputer 22 are connected by an IIC bus 30, which is a general-purpose serial bus, and can transmit and receive data to and from each other according to a predetermined communication protocol. Of course, the objects connected by the IIC bus 30 are not limited to these, and other configurations may be connected.

  The microcomputer 22 includes a CPU 22a, a ROM 22b, a RAM 22c, and an input / output (I / O) circuit 22d. The television 22 calculates various programs stored in the ROM 22b by the CPU 22a while using the RAM 22c as a work area. Take overall control. When a control signal is input from the input / output circuit 22d, the microcomputer 22 temporarily stores it in a predetermined area of the RAM 22b, reads the control signal in the stored order, and executes a corresponding process. That is, the RAM 22b has an area for temporarily storing control signals, and can hold up to a predetermined number of control signals on the RAM 22b.

  The tuner circuit 10 receives a television signal having a desired frequency corresponding to the television broadcast band input via the antenna 10a under the control of the microcomputer 22, and extracts only a required signal from the received television signal. Output to the switch circuit 12.

  In addition, a video signal and an audio signal can be input to the television 100 from the external input terminal 11. As the external input terminal 11, various terminals such as an analog terminal such as a composite terminal and a component terminal, a digital terminal such as an HDMI terminal, and the like can be adopted. The external input terminal 11 may be one system or a plurality of systems.

  Signals are input to the switch circuit 12 from the tuner circuit 10 and the external input terminal 11, and the signal input from either one is switched and validated under the control of the microcomputer 22 and supplied to the video signal processing circuit 14. . As a result, the switch circuit 12 can output video and audio signals based on input from either the tuner circuit 10 or the external input terminal 11. When the external input terminal 11 has a plurality of terminals, the switch circuit 12 switches the input from the tuner circuit 10 and the input of each system in order.

  More specifically, the switching order is predetermined in the switch circuit 12 and, for example, (1) tuner, (2) external input 1, (3) external input 3,... It has become. When a switching signal is input from the microcomputer 22 while the tuner is selected, the external input 1 is selected and the video signal and audio signal input from the external input 1 are output.

  The video signal processing circuit 14 includes a pixel number conversion circuit, an image quality adjustment circuit, and an output processing circuit. The video signal processing circuit 14 performs predetermined signal processing on the video signal input from the switch circuit 12 and outputs it to the liquid crystal panel 16. To do. When a video signal is input, the pixel number conversion circuit generates an RGB signal for one screen displayed on the liquid crystal panel while performing a scaling process on the video signal. The image quality adjustment circuit performs various adjustments such as brightness, contrast, black balance, white balance, and sharpness on the RGB signal that has been scaled by the pixel number conversion circuit. The output processing circuit performs gamma correction, dither processing, and the like on the RGB signal that has undergone image quality adjustment, adds a background signal, an OSD signal, a blanking signal, etc., and outputs it to the display to display an image. .

  The audio signal processing circuit 18 performs predetermined processing such as amplification, balance adjustment, and adjustment of the number of output channels in accordance with the number of speakers on the audio signal input from the tuner circuit 10 and outputs the result to the speaker 20 to reproduce the audio. .

  The display 16 is composed of, for example, a liquid crystal panel and a drive circuit that drives the liquid crystal panel. The drive circuit generates a drive signal based on the video signal input from the video signal processing circuit 14, and the liquid crystal panel is generated by the drive signal. Are driven. Of course, the display 16 may be a plasma display panel and a driving circuit, a picture tube driven by a vertical deflection circuit, a horizontal deflection circuit, or the like.

  The OSD circuit 28 generates an OSD signal corresponding to various displays based on a control signal (instruction) of the microcomputer 22 and outputs the OSD signal to the video signal processing circuit 14. The OSD signal is output to the video signal output from the video signal processing circuit 14. Is superimposed. For example, the image data stored in the ROM 22b is acquired, an OSD signal based on the image data is generated, the OSD signal is added to the video signal by the image quality adjustment circuit of the video signal processing circuit 14, and the display 16 is output.

  The remote control 60 has a plurality of keys for accepting operations and a remote control transmission circuit for transmitting remote control signals to the remote control reception circuit 26, and the remote control signals corresponding to the operations of the plurality of keys are in a predetermined format expressed in pulses. Send it out. For example, when the remote controller 60 shown in FIG. 2 is used to receive a desired channel, a corresponding remote controller signal is transmitted from the remote controller transmitter 61. Then, the microcomputer 22 receives the remote control signal via the remote control receiving circuit 26 and sends the frequency data to the tuner circuit 10 so as to receive the corresponding channel.

  In FIG. 2, the remote controller 60 includes a power key 62, a menu key 63, an input switching key 67, a cursor key 64, a volume adjustment key 65, and a numeric keypad (channel key) 66. When the microcomputer 22 detects the depression of the menu key 63, it causes the OSD circuit 28 to generate an OSD signal of a menu screen for performing various adjustments of the television 100. When the microcomputer 22 detects that the input switch key 67 is depressed, the microcomputer 22 outputs a switching signal to the switch circuit 12 to switch the input to be enabled in the switch circuit 12.

  FIG. 3 is a block diagram showing a schematic configuration of the remote controller 60. The remote controller 60 includes a control circuit 52, and the operation keys 51 (three operation keys are illustrated in the figure) connected to the control circuit 52 are the power key 62, menu key 63, input switching key 67, and cursor keys in FIG. 64, volume control key 65, and numeric keypad (channel key) 66. A remote control transmission circuit 56 is connected to the control circuit 52.

  The remote control transmission circuit 56 has an infrared light emitting element (not shown), and a remote control signal (wireless signal) corresponding to the signal output from the control circuit 52 is transmitted to the outside. The control circuit 52 includes a CPU 53, a ROM 54, a RAM 55, and the like. Then, the CPU 53 executes a predetermined program stored in the ROM 54 while using the RAM 55 as a work area, and controls the entire remote controller 60. With this configuration, the remote controller 60 receives an operation input from the operation key, generates control data corresponding to the input content, converts it into a remote control signal, and transmits it.

  The remote control 60 and the remote control receiving circuit 26 constitute a control signal generation unit and a remote control device, the microcomputer 22 constitutes a control unit, and the video signal processing circuit 14 or a combination of the video signal processing circuit 14 and the tuner circuit 10 reproduces a video signal. Parts.

(2) Input support processing:
In general, when multiple remote control operations are performed, the microcomputer that executes the process corresponding to the remote control operation accepts and executes the next remote control operation after the process corresponding to the previous remote control operation is completed, or these A control signal corresponding to a plurality of remote control operations is received, and processing corresponding to the control signal is executed in the order received according to the processing capability.

  In microcomputers used for such processing, memories (storage areas) such as ROM 22b and RAM 22c have increased, and even today, even if a part of the memory is used exclusively for storing control signals, the processing capacity of the microcomputer is very small. It is no longer influencing.

  Therefore, when the microcomputer receives a control signal from the remote controller, the microcomputer stores the control signal in a predetermined storage area, and sequentially reads and executes the stored control signal. That is, a predetermined area of the RAM 22c is used as an area for storing a control signal (hereinafter referred to as a control signal area), and an unprocessed control signal can be stored in this area. In the present embodiment, the areas No. 1 to No. 4 are formed in the RAM 22c, and up to four control signals can be stored. Of course, various configurations are possible as long as two or more control signals can be stored. Can be adopted.

  In addition, in order to inform the user that there is an unprocessed control signal, a specific symbol (design, mark, character string, etc.) is associated with each control signal in advance, Display the corresponding symbol on the screen. That is, when a control signal is stored in the control signal area of the RAM 22c, the microcomputer 22 causes the OSD circuit 28 to generate an OSD signal of a symbol corresponding to the stored control signal and superimposes it on a predetermined position of the video signal. As a result, the user can recognize whether or not the control signal is received by the microcomputer 22.

  When the unprocessed control signal is processed (or when the process is started), the microcomputer 22 stops the output of the OSD signal of the symbol of the processed control signal to the OSD circuit 28 and the symbol of the video signal. End superimposition. Thereby, the viewer can visually (intuitively) recognize the execution / non-execution of the processing.

  In consideration of the convenience of the viewer, the symbol display position is displayed at the lower right where it is difficult to overlap the time display or the telop. Then, the control signal symbol having the highest processing priority is displayed at the right end, and the control signal symbol whose processing order is later in the left direction is displayed. When the process is completed, the control signal symbol of the completed process is deleted, and the unprocessed control signal symbol is shifted to the right for display. Therefore, the viewer can visually confirm in which order the unprocessed control signals are processed. Further, since the symbols of unprocessed control signals are always arranged in order from the right end, the number of remaining unprocessed controls can be easily confirmed.

  In addition, a key such as a numeric keypad corresponds to channel selection in a television, and is associated with a chapter number or the like in the case of a recording medium reproduction device. Often associated with high priority processing. Accordingly, when a key (hereinafter referred to as a priority key) associated with a specific operation such as a numeric keypad is operated, both an unprocessed control signal stored in the RAM 22c and a control signal currently being processed are canceled. So that

  That is, the microcomputer 22 checks the input control signal, and when the control signal associated with the numeric keypad is input, the microcomputer 22 clears the control signal area of the RAM 22c and is executed based on the control signal. Is forcibly terminated. Then, the control signal associated with the numeric keypad is preferentially executed. Thereby, it becomes the structure which can achieve the objective of this invention, without preventing operation with high priority for a viewer.

  Hereinafter, the processing of the microcomputer 22 when the viewer depresses a key of the remote controller 60 and a control signal corresponding to this key operation is input will be described with reference to the flowchart of FIG. Note that this processing is applicable not only when a remote control signal is input from the remote controller 60 but also when, for example, the television 100 is provided with an operation panel and the microcomputer 22 receives an operation input of the operation panel. . This process is started when the microcomputer 22 receives a control signal from the input / output circuit 22d.

  When the process is started, it is determined in step S10 whether the depressed key is a numeric keypad (priority key). When the user depresses a key on the remote controller 60, the remote controller 60 generates a remote control signal by the remote control transmission circuit 56 and transmits the remote control signal from the remote control transmission unit 61. Then, the remote control receiving circuit 26 receives the remote control signal, generates a corresponding control signal, outputs it to the input / output circuit 22d, and the microcomputer 22 receives the control signal via the input / output circuit 22d.

  The microcomputer 22 stores a list in which the control signal is associated with information indicating whether or not the control signal is a numeric keypad (priority key) in the ROM 22b, and the control signal received with reference to this list is the numeric keypad. It is determined whether the control signal corresponds to. Of course, information indicating whether or not the control signal is a numeric keypad (priority key) may be incorporated in the processing program itself.

  If it is determined in step S10 that the control signal corresponds to the numeric keypad, the condition is satisfied, and the process proceeds to step S34. On the other hand, if it is determined that the control signal does not correspond to the numeric keypad, the process proceeds to step S12.

  When the condition is satisfied in step S10 and the process proceeds to step S34, all of the control signals stored in the control signal area are deleted, and processing corresponding to the numeric keypad is executed. That is, in the case of the television 100, a channel selection signal corresponding to the channel number is generated and output to the tuner circuit 10, and the television signal corresponding to the input numeric key number is selected.

  In step S12, it is determined whether or not there is a free space in the recording area. That is, the area No. of the control signal area of the RAM 22c. 1-No. 4 is scanned to determine whether there is an area in which no control signal is stored. If there is a vacancy in any region, the condition is satisfied and the process proceeds to step S14. If a control signal is stored in any region and there is no vacancy, the input control signal is discarded and the condition is not satisfied. Proceed to step S20. That is, when the number of stored control signals exceeds a predetermined number, the input control signals are discarded without being stored.

  In step S14, a search is made for available memory in order from the front. That is, the control signal area of the RAM 22c is assigned the area No. Scan sequentially from 1 to search for an area where no control signal is stored. In step S14, since it is confirmed in step S12 that there is an empty space in the control signal area, a process for determining an area to be stored in order to store the control signal in the empty space closest to the head. It is. Therefore, this process may be performed simultaneously with the scan process in step S12.

  When the closest empty space is confirmed, the process proceeds to step S16, and a control signal is recorded in the empty area found in step S14. As a result, the region No. 1-No. The control signal is stored in chronological order inputted to 4, and when reading and executing the control signal described later, it is only necessary to read and execute from the head area.

  In this way, while the control signal is stored in the area, the viewer may receive another control signal by performing another operation. Therefore, in step S18, it is determined whether another control signal is received during execution of steps S10 to S16. If another control signal is received, the condition is satisfied and the process returns to step S10 to repeat the processing from step S10. If no other control signal is received, the condition is not satisfied and the process proceeds to step S20.

  In step S20, the symbol associated with the recorded control signal is OSD-displayed on the screen. That is, since the symbol associated with each control signal is stored in the ROM 22b, the symbol associated with the control signal stored in the control signal area is acquired and output to the OSD circuit 28. Then, the OSD circuit 28 generates an OSD signal based on the symbol and outputs the OSD signal to the video signal processing circuit 14 to generate a video signal on which the OSD signal is superimposed.

  FIG. 5 shows an example of a screen on which symbols are displayed. As shown in the figure, the display position of this symbol is the region No. 1 (symbol A) is associated with the control signal stored in the lower right corner of the screen. 2 is a symbol (referred to as symbol B) associated with the control signal stored in the left side of the symbol A. 3 is a symbol (referred to as symbol C) associated with the control signal stored in the left side of the symbol B. A symbol (referred to as symbol D) associated with the control signal stored in 4 is the left side of the symbol C. Of course, if no signal is recorded, no symbol is displayed.

  In step S22, the control signal recorded at the head of the control signal area is executed. That is, the region No. 1 control signal is acquired, and processing corresponding to this control signal is executed. Then, the process proceeds to step S24, and it is determined whether or not the process executed in step S22 has been completed. When the process ends, the condition is satisfied and the process proceeds to step S26. If the process is not ended, step S24 is repeated until the process ends.

  In step S26, the control signal recorded at the head of the control signal area is erased, and the symbol corresponding to the erased control signal is erased from the screen. That is, the control signal that has been processed in step S24 is erased from the control signal area, and the control signal is output to the OSD circuit 28 to stop generating and outputting the OSD signal of the symbol corresponding to the erased control signal. .

  In step S28, the control signal area No. 2 determines whether a control signal is recorded. That is, since the control signals are stored in order from the top, the area No. By determining whether or not the control signal is stored in 2, it is determined whether or not the control signal that has been executed in step S24 is the last control signal stored in the control signal area. Region No. If the control signal is stored in No. 2, the condition is satisfied and the process proceeds to Step S30. If no control signal is stored in 2, the process is terminated because the condition is not satisfied.

  In step S30, the control signals recorded in the control signal area are rearranged. That is, region No. The control signal stored in the area No. 1, the region No. The control signal stored in the area No. 2, region No. The control signal stored in the area No. 3, the entire storage order is shifted one by one to the head side, and the region No. Fill the space of 1. When the rearrangement ends, the process proceeds to step S32.

  In step S32, it is determined whether a new control signal has been received. That is, as in step S18, the viewer may receive a new control signal by performing another operation even while executing steps S20 to S30. Therefore, in step S32, it is determined whether another control signal is received during execution of steps S20 to S30. If another control signal is received, the condition is satisfied and the process returns to step S10 to repeat the processing from step S10. If no other control signal is received, the condition is not satisfied and the process proceeds to step S20.

  When the condition is not satisfied in step S32 and the process proceeds to step S20, a symbol is displayed on the screen based on the rearranged control signals. FIG. 6 shows an example of a screen in which symbols are displayed as shown in FIG. 5 in step S20, control signals are rearranged in step S30, and the process proceeds to step S20 after the rearrangement and symbols are displayed. The symbol displayed second from the lower right end in FIG. 5 is displayed at the lower right end, the symbol displayed third from the lower right end in FIG. 5 is displayed second from the lower right end, and the lower right end in FIG. The symbol displayed fourth from the third is displayed third from the lower right corner. That is, the symbols for which processing has been completed are deleted, and the symbols waiting for processing are displayed on the right.

  As described above, the microcomputer 22 that ends the processing upon receiving the control signal corresponding to the key operation of the numeric keypad in step S10 constitutes the control end means, and after the condition is satisfied in step S10, the processing in steps S12 to S16 and step S18 are performed. And the microcomputer 22 that executes the process of S32 constitutes a control signal storage means, the microcomputer 22 that executes the process of step S20 constitutes a symbol display means, and the microcomputer 22 that executes the processes of steps S22 and S24 is the control execution means. The microcomputer 22 that executes the processing of step S20 after executing the processing of steps S26 to 30 constitutes the symbol erasing means.

As described above, according to the present embodiment, the following operational effects can be obtained.
When the user depresses the input switching key, a control signal corresponding to the input switching key is stored in the control signal area of the RAM 22c. A symbol corresponding to this input switching control signal is displayed at the lower right of the screen. As a result, the user can visually know that the input switching control signal has been received for each control unit.

  Also, even if the user presses down the input switch key, a time lag occurs until the screen switches, and the input switch key is pressed several times to switch to something other than the desired input. Even in this case, symbols corresponding to the number of times of pressing are displayed on the screen. Therefore, the user can further press down the input switch key while visually confirming this display until a desired input is obtained.

  In addition, since a plurality of control signals can be sequentially registered in this way, it is also possible to execute a plurality of processes in order, continuously execute the change, and use the change. For example, if there is a time lag from the key operation until the process is executed, the display screen switching is input in advance using the time lag, and the screen is switched continuously without being troubled by the key operation. And so on. Of course, how to use depends on the user's imagination.

  Also, by depressing the channel key (numeric keypad), all the key operations that have been stored so far can be invalidated and channel selection can be performed, so multiple processes can be registered and processed. Even in a waiting state, it is possible to start watching a television broadcast at a desired timing.

Needless to say, the present invention is not limited to the above embodiments. It goes without saying for those skilled in the art,
・ Applying mutually interchangeable members and configurations disclosed in the above embodiments by appropriately changing the combination thereof.− Although not disclosed in the above embodiments, it is a publicly known technique and the above embodiments. The members and configurations that can be mutually replaced with the members and configurations disclosed in the above are appropriately replaced, and the combination is changed and applied. It is an embodiment of the present invention that a person skilled in the art can appropriately replace the members and configurations that can be assumed as substitutes for the members and configurations disclosed in the above-described embodiments, and change the combinations and apply them. It is disclosed as.

It is a block diagram which shows the outline of a structure of a television. It is a perspective view which shows an example of a remote control. 2 is a block diagram showing a schematic configuration of a remote controller 60. FIG. It is a flowchart which shows the process of a microcomputer. It is an example of a screen. It is an example of a screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Tuner circuit, 10a ... Antenna, 11 ... External input terminal, 12 ... Switch circuit, 14 ... Video signal processing circuit, 16 ... Display, 18 ... Audio signal processing circuit, 20 ... Speaker, 22 ... Microcomputer, 22a ... CPU, 22b ... ROM, 22c ... RAM, 22d ... input / output circuit, 26 ... remote control reception circuit, 28 ... OSD circuit, 30 ... IIC bus, 51 ... operation key, 52 ... control circuit, 53 ... CPU, 56 ... remote control transmission circuit, 60 ... Remote control, 61 ... Remote control transmitter, 62 ... Power key, 63 ... Menu key, 64 ... Cursor key, 65 ... Volume adjustment key, 66 ... Numeric keypad (channel key), 67 ... Input switch key, 100 ... Television

Claims (8)

A display that displays video on the screen,
A video signal processing circuit for displaying a video corresponding to the input video signal on the screen;
A remote control receiving circuit for receiving a remote control signal expressed in pulses of a predetermined format and generating a corresponding control signal; a plurality of keys for accepting operations; and a remote control transmission circuit for transmitting the remote control signal to the remote control receiving circuit; A remote control that transmits a remote control signal in accordance with the operation of the plurality of keys in a predetermined format;
An OSD circuit for generating an OSD signal for OSD display on the screen;
A microcomputer for receiving an operation input from the remote controller by inputting the control signal from the remote control receiving circuit and detecting a corresponding key operation, and causing the OSD circuit to generate an OSD signal corresponding to the received operation input;
In a television with
The microcomputer includes a RAM having a control signal area for storing the control signal, and a ROM storing a symbol corresponding to the control signal,
If the received control signal is a key operation corresponding to the channel key, the control signal area is cleared,
If the received control signal is a key operation other than the channel key, the control signal is stored in the empty area closest to the top of the control signal area,
Causing the OSD circuit to generate an OSD signal based on a symbol corresponding to the control signal stored in the control signal area;
The processing corresponding to the control signal stored at the top of the control signal area is executed,
When the processing ends, the corresponding control signal is erased from the control signal area and the OSD display of the symbol corresponding to the control signal is stopped.
Rearranging so that control signals in the control signal area are stored in order from the head of the area. A video signal reproduction unit for reproducing a video signal, a control unit for controlling the video signal reproduction unit to reproduce a desired video signal, and generating a control signal based on a user operation input and inputting the control signal to the control unit In a video signal reproducing apparatus comprising a control signal generator for
The control unit
Control signal storage means for storing a plurality of control signals input from the control signal generator;
Symbol display means for displaying a symbol corresponding to the stored control signal superimposed on the video signal;
Control execution means for acquiring and executing stored control signals in the order of input; and
A video signal reproducing apparatus comprising: symbol erasing means for erasing a symbol corresponding to the control signal executed by the control execution means from the video signal.   The video signal reproducing apparatus according to claim 2, wherein the symbol display means superimposes the symbols so that the symbols are displayed in order from the lower right to the lower left.   4. The video signal reproducing apparatus according to claim 2, wherein when the symbol is erased, the symbol of the unexecuted control signal is shifted to the right and displayed.   When a predetermined control signal is input, the control unit deletes the control signal stored in the control signal storage unit and terminates the control executed by the control execution unit, and then outputs the predetermined control signal. 5. The video signal reproducing apparatus according to claim 2, further comprising a control ending unit to be executed.   6. The video signal reproducing device according to claim 2, wherein the control signal generating unit is a remote control device.   The video signal reproducing apparatus according to claim 5 or 6, wherein the predetermined control signal is a control signal generated by an operation input of a numeric keypad.   The control signal storage means discards the input control signal without storing it when the stored control signal exceeds a predetermined number. The video signal reproducing device according to claim 1.

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