JP3402089B2 - Television receiver - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-screen display screen that covers a screen, and after confirming an image, automatically returns to the original on-screen display screen after a certain period of time. The present invention relates to a television receiver capable of realizing an operation of switching to a single key operation. [0002] In recent years, with the advancement of advanced technology, attention has been paid to improvement of operability of complicated functions. For example, in a function of storing channel data in a memory on a television and re-editing the data so that the user can easily use the data, the user may enter an edit mode via several menu screens. When editing channel data, the list is easy to read and convenient, but in this case, the display portion of the list usually becomes large and covers the entire screen. Then, even if the user wants to check the video of the currently selected channel in order to edit the channel data, he cannot do so because of the large on-screen display. In order to return to the original editing mode, it is necessary to start the procedure from step 1. Therefore, it is very troublesome for a menu screen having many steps or a deep hierarchy. Hereinafter, an example of a conventional television receiver will be described with reference to the drawings. FIG. 3 shows a television receiver. In FIG. 3, 1 is an antenna, 2 is a tuner for receiving a television signal from the antenna 1, 3 is an IF circuit for extracting a video signal from an output signal of the tuner 2, and 4 is an image circuit. Switch for switching the input of the video signal and the audio signal, 5 is a video control circuit for controlling the supply of the input video signal to the display means, 6 is the CRT of the display means, and 7 is the audio signal input from the AV switch 4. , An audio control circuit for controlling the on-screen display, 11 a microcomputer, a tuner 2, an AV switch 4, an audio control circuit 7, a video control circuit 5, Each device of the screen control circuit 9 is controlled. 10 is an operation key for instructing the microcomputer 11 to perform various operations, 13 is a key processing unit for decoding a signal from the operation key 10, and 14 is an operation for the key decoded by the key processing unit 13. An execution processing unit 15 for sending instructions to the respective devices to control them; a display control unit 15 for performing control for displaying the contents instructed by the execution processing units 14 and instructing the on-screen control circuit 9 of the display contents , Key processing unit 13, execution processing unit 14, display control unit 15
Is inside the microcomputer 11. The following is a flowchart and procedure for releasing the on-screen display screen in the television receiver having the above-described configuration, displaying an image, and returning to the original on-screen. FIG. 4 is a flowchart showing a process in the microcomputer 11 shown in FIG. In FIG. 4, in step S1, it is determined whether or not an on-screen display selection key has been input, and if it has been input, the next on-screen screen mode is displayed. In step S2, it is determined whether an on-screen display release key has been input, and if it has been input, the on-screen display is turned off. When it is desired to release the on-screen display and temporarily check the image while displaying the list, to release the on-screen display screen, first enter an on-screen display release key to temporarily turn off the on-screen display. When you can see the video, you can return to the original on-screen display again.
Enter the on-screen display selection key. [0008] However, in the above configuration, when it is desired to temporarily check the video of the currently selected channel, the on-screen display screen such as a list is temporarily released. Display the video hidden under the on-screen display, check the video, and then select and switch to the original on-screen display screen again. There is a problem that the operability is poor because the screen display must be repeatedly selected. [0009] In order to solve the above problems, a television receiver according to the present invention comprises an on-screen display.
An image display key for requesting display of an image at
An execution processing unit that determines whether or not the display key has been pressed and sends an instruction to each control unit; a display control unit that writes or erases a designated on-screen display according to an instruction from the execution processing unit; Counts time according to instructions from
A timer to start , wherein the execution processing unit
When the display key is determined to be pressed, the displayed ON
Save on-screen display mode and save on-screen display
Display, and after counting for a certain period of time by the timer
Read the on-screen display mode at
The original on-screen display . [0010] Thus, in order to confirm the image even on the on-screen display screen that covers the screen, pressing the operation key once turns off the on-screen display, switches to the image display, and displays the image for a certain period of time. After the display, a television receiver that can automatically switch to the original on-screen display screen is obtained. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first invention of the present application is an on-screen display that obscures an image, such as displaying a list, when it is difficult to see the image, with a single operation, the under-screen display is performed. A television receiver that can easily check hidden images and automatically return to the original on-screen display screen after a certain period of time. With the above configuration, the on-screen display screen can be operated with a single key operation. Since the display is switched to the video display screen and the video is displayed for a certain period of time, the display is automatically switched to the original on-screen display screen, so that the video can be easily checked. According to a second aspect of the present invention, there is provided an operation key for requesting display of an image, a key processing unit for decoding that a key processing request has been made by the operation key, and a processing decoded by the key processing unit. An execution processing unit that sends an instruction to each control unit according to the content, a display control unit that writes or erases a specified on-screen display according to an instruction from the execution processing unit, and a video for a fixed time according to an instruction from the execution processing unit 2. The television receiver according to claim 1, further comprising a timer for counting a time for displaying and switching to the original on-screen display screen. After switching to the display screen and displaying the video for a certain period of time, the display is automatically switched to the original on-screen display screen, so that the video can be easily checked. Hereinafter, embodiments of the present invention will be described with reference to the drawings. Embodiment 1 FIG. 1 shows a television receiver. In FIG. 1, reference numeral 1 denotes an antenna, 2 denotes a tuner for receiving a television signal from an antenna 1, 3 denotes an IF circuit for extracting a video signal from an output signal of the tuner 2, Reference numeral 4 denotes an AV switch for switching input of video and audio, 5 denotes a video control circuit for controlling input video signals to be supplied to the display means, 6
Is a CRT of display means, 7 is an audio control circuit for controlling until an audio signal input from the AV switch 4 is output to the speaker 8, 9 is an on-screen control circuit for controlling on-screen display, and 11 is a tuner by a microcomputer. 2. It controls each device of the AV switch 4, the audio control circuit 7, the video control circuit 5, and the on-screen control circuit 9. 10 is an operation key for instructing the microcomputer 11 to perform various operations, 13 is a key processing unit for decoding a signal from the operation key 10, and 14 is an operation for the key decoded by the key processing unit 13. An execution processing unit 15 for sending instructions to the respective devices to control them; a display control unit 15 for performing control for displaying the contents instructed by the execution processing units 14 and instructing the on-screen control circuit 9 of the display contents , Key processing unit 13, execution processing unit 14, display control unit 15
Is inside the microcomputer 11. Reference numeral 12 denotes a timer which counts and notifies a predetermined time to the execution processing unit 14. FIG. 2 is a flowchart showing a process in the microcomputer 11 shown in FIG. In FIG. 2, in a step S1, it is determined whether or not a video display key for displaying an image while erasing the on-screen display on the screen is pressed. In a step S2, it is determined that the video display key is pressed in the step S1. When done, save the current on-screen display mode. In step S3, the currently displayed on-screen display is erased, so that an image is displayed in step S4. In step S5, the time during which the on-screen display is turned off and the video is displayed is counted, and it is determined whether or not the specified time has been reached. In step S6, the original on-screen display mode is read when the time specified in step S5 is reached, and the original on-screen display screen is displayed in step S7. The operation of the above-configured television receiver will be described below with reference to the block diagram of FIG. 1 and the flowchart of FIG. In FIG. 1, after an IF circuit 3 extracts a video signal from an output signal of a tuner 2 which has received a television signal from an antenna 1, an AV switch 4 switches input of video and audio, and then an audio signal is controlled by an audio signal. The video signal is processed by the circuit 7 and output to the speaker 8, and the video signal is processed by the video control circuit 5 and displayed on the CRT 6 as display means. Tuner 2, AV switch 4,
Each device of the audio control circuit 7, the video control circuit 5, and the on-screen control circuit 9 is controlled. When the on-screen display is turned off by the operation key 10 and the image display key is pressed to confirm the image, the key processing unit 13 decodes the key input and determines whether the image display key is pressed.
(Step S1 in the flowchart of FIG. 2) If the video display key is pressed, the execution processing unit 14 saves the currently displayed on-screen display mode (Step S2 in FIG. 2) and erases the on-screen display. An instruction is issued to the display control unit 15, and the display control unit 15 controls the on-screen control circuit to delete the currently displayed on-screen display (step S3 in FIG. 2). When the on-screen display is turned off, the video hidden under the on-screen display is displayed (step S4 in FIG. 2). Thereafter, the execution processing unit 14 instructs the timer 12 to count the time so that the video is displayed for a certain time, and the timer 12 that counts the specified time starts when the specified time is reached. In response to the notification, the execution processing unit 14 determines that a predetermined time has elapsed (step 5 in FIG. 2) and changes the original on-screen display mode to display the original on-screen display on the screen. Reading
(Step 6 in FIG. 2), the display control unit 15 is instructed to perform on-screen display, and the display control unit 15 controls the on-screen control circuit 9 to display the original on-screen display screen (Step in FIG. 2). S7). As described above, according to the television receiver of the present invention, the operation key is operated once to confirm the image at the time of on-screen display such as a list covering the entire screen. Press to switch from the on-screen display screen of the list to the video display and display it for a certain period of time, then automatically switch to the original on-screen display screen, so one operation without stepping through multiple key operations As a result, the user can easily check the video, so that the operability is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a television receiver according to an embodiment of the present invention. FIG. 2 is a flowchart of processing of FIG. 1 by a microcomputer. FIG. 3 is a block diagram of a conventional television receiver. Block diagram [FIG. 4] Flowchart of processing FIG. 3 by microcomputer [Description of reference numerals] 1 Antenna 2 Tuner 3 IF circuit 4 AV switch 5 Video control circuit 6 CRT 7 Audio control circuit 8 Speaker 9 On-screen control circuit 10 Operation Key 11 Microcomputer 12 Timer 13 Key processing unit 14 Execution processing unit 15 Display control unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04N 5/38-5/46 G09G 5/00 G09G 5/14

Claims (1)

(57) [Claims] [Claim 1] It is necessary to display an image during on-screen display.
Video display key to request and whether the video display key has been pressed
An execution processing unit for determining whether or not to send an instruction to each control unit, a display control unit for writing or erasing a designated on-screen display according to an instruction from the execution processing unit, and a time count according to an instruction from the execution processing unit And a timer for starting , the execution processing unit is pressed the video display key
Is displayed, the displayed on-screen display mode
Save on-screen display, delete on-screen display, and
After counting the fixed time by the
Read the display mode and restore the original onscreen
A television receiver characterized by switching to a television display .