JPH01246972A - Channel selection controller - Google Patents

Abstract

PURPOSE:To select a desired program by one time of ten-key operation by arranging the ten-key corresponding to the arrangement of divided pictures on a displaying screen. CONSTITUTION:One screen surface of a displaying screen 14 is divided into nine parts and picture of nine channels are displayed in maximum on the screen 14. A channel search controlling circuit 13 receives a control signal through the operation of a multi-screen setting key and controls the pictures of signal- existing channels only by causing the tuning frequency of a channel selection device 11 to be swept and, at the same time, causes a storage device 16 to store relations between the screen positions and channels. When the ten-key 12 corresponding to the picture position of a desired picture is operated while watching the pictures displayed on the multi-screen of the multi-screen display device 14, the circuit 13 reads out the channel of the corresponding picture from the storage device 16 and controls the multi-screen display device 14 so as to cause the device to make a single-screen display. Therefore, a desired picture of a single channel is selectively displayed.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a channel selection device for a television receiver, a VTR, etc., and in particular to a channel selection control device with improved operability for multi-screen display. Regarding.

(Prior Art) In recent years, digital technology has been used in television receivers, VTRs, and the like to perform multi-screen display in which images of a plurality of channels are divided and displayed on the screen.

A conventional channel selection control device that performs multi-screen display is configured as shown in FIG. A channel selection device 1 allows the reception channel of television broadcasting to be selected by operating a numeric keypad 2, and a channel search control circuit 3.
controls the tuning frequency of the channel selection device 1 to be swept so that only the image of the signaled channel is displayed on the multi-duplex display device 4 in a multi-duplex manner. The multi-screen display device 4 guides the signals of multiple channels from the channel selection device 1, divides one screen using the control signal from the channel search control circuit 3, and displays C.
Display on RT screen 5. At the same time, the channel search control circuit 3 causes the channel display device 6 to generate the channel number of the right signal channel, and displays the number on each screen on the display screen 5 through the multi-screen display device 4. The numbers on screen 5 indicate channel numbers.

By the way, channel numbers for television broadcasting are generally one to two digits, and in order to select one channel using the numeric keypad, you need to perform two operations to select the 10th digit and the 1st digit. . When a plurality of channels are displayed on a multi-screen, it is difficult to tell which screen is which channel, so a method such as superimposing channel numbers on the screen as shown in FIG. 4 is necessary. Also, since the screen is small with minutes and 11, the channel number is displayed in smaller letters, so when you move away from the screen, you will have to click to check the channel number. The images of the programs I wanted to display were no longer visible. In addition, it was necessary to operate the numeric keypad twice to return to the screen of one selected channel from the multi-screen.

(Problem to be Solved by the Invention) As mentioned above, conventionally, when displaying multiple screens, a means for displaying the relationship between the multiple screens and channels is required, and furthermore, when channels are displayed on a split screen, the display becomes smaller and confirmation is required. I was reluctant.

In addition, two actions were required to operate for reselection.

Therefore, the present invention is intended to eliminate the above problems.
To provide a channel selection control device capable of selecting a desired program with a single operation without requiring a means for displaying a channel number.

[Structure of the Invention] (Means for Solving the Problems) A channel selection control device of the present invention has a channel selection device for selecting a reception channel of television broadcasting, and an image memory, and has reception information of a plurality of channels in the memory. A multi-screen display device that reduces and stores an image, reads out the stored contents, divides one screen, and displays it on a display means, and the relationship between the on-screen position of the image displayed on the multi-screen and the channel number. a storage device for storing information; a key input means having a key layout corresponding to a multi-screen arrangement and for selecting a channel of the channel selection device; and a key input means for selecting a channel of the channel selection device; controlling the multi-screen display device to divide and display only one double-sided image and controlling the storage device to perform the storage operation, and when operating the key input means during multi-screen display; Channel search control means reads a channel number corresponding to the array position of the operated key from the storage device, reselects the channel, and controls the multi-screen display device to display the image of the reselected channel on a single double-sided screen. It is equipped with and configured.

(Function) In the present invention, by viewing the images displayed on the multi-screen and operating the numeric keypad corresponding to the screen position of the desired image, the desired single display screen is selected and displayed.

(Example) The present invention will be described below based on the example shown in the drawings.

FIG. 1 is a block diagram showing a channel selection control device according to an embodiment of the present invention. In this embodiment, one screen is divided into nine parts to display screens for a maximum of nine channels.

The channel selection device 11 receives television broadcasting and selects a reception channel by operating the numeric keypad 12 of the key input means 17. The key input means 17 has a numeric keypad 12 and a mode setting key 18, and the numeric keypad 12 is arranged in the same arrangement as the multi-screen arrangement displayed on the display screen 15. Mode setting keys 18 include keys for setting multi-screen.

The channel search control circuit 13 receives a control signal by operating the multi-screen setting key, sweeps the tuning frequency of the channel selection device 11, and controls the multi-screen display device 14 to display only the image of the signaled channel. At the same time, the relationship between the screen position and the channel is stored in the storage device 16. In addition, during multi-screen display, the channel search control circuit 13 reads out the channel of the screen corresponding to the operated numeric keypad 12 array position from the storage device 16, causes the channel selection device 11 to re-select the channel, and changes the multi-screen display device 14 to a single screen. Control so that it is displayed. The multi-screen display device 14 has an image memory, and when performing multi-screen display, the received images of each signal channel are sequentially reduced and stored in the image memory, and the contents of this image memory are read out and the video signal is generated. By configuring, you get multi-split screen.

In the above configuration, the arrangement of the numeric keypad 12 and the arrangement of the split screens on the display screen 15 correspond to each other. For example, the numeric keypad 12 has three pieces in the upper row, three in the middle, and four in the lower row.
The screens are arranged as ■～■O, and the screen 15 is the upper three screens A-C,
Middle row 3 screens D-F.

The three screens in the lower row are arranged as G to ■. If you operate the numeric keypad marked ■ in the upper left, 8 on the upper left screen will be selected. For example, when the numeric keypad (■) on the right of the middle row is operated, the screen of F on the right of the middle row is selected.

FIG. 2 shows the address map of the storage device 16, which is configured to store each channel number of the displayed split screen A-1 for the addresses corresponding to the numeric keys ■ to ■. .

In this embodiment, the channel search control circuit 13 includes:
It is composed of a microcomputer, and its M'S operation is shown in the flowchart of FIG.

The system is activated by operating the multi-screen setting key of the key input means, and step 1 is executed. In step S1, it is determined whether the device is currently in the channel search mode, and if the channel search mode is set, then it is determined whether the same mode was set last time (step S2). If the channel search mode was set last time, it is determined in step S6 whether or not there was an input from the numeric keypad. If it is not the previous channel search mode in step S2, the multi-screen display device 1
The multi-screen write address for 4 is initialized and set as the address for 4 (step 83).

Next, the address of the storage device 16 is initialized to address 1 (step 84). After that, the multi-screen display mode is set (step S5). Next, it is determined whether there is any numeric key input (step S6), and if there is no input, it is determined whether the channel has a signal (step 37). If the channel has a signal, step 140 becomes the channel selection mode.

If it is the right signal channel, stop the channel selection step S.
8) After writing the image currently being received into the specified address of the multi-screen display device 14 (step S9), and reading the channel number currently being received into the specified address of the storage device 14 ( Step 510), the multi-screen write address and the address of the storage device 14 are set to the next address (step 511). Next, step 8 determines whether each address is overflowing.
12), if there is no overflow, the channel selection sweep mode is started (step 514), and then step 81. S2
, 86 to 814 are repeated to perform channel selection and sweep, and images of signal channels are displayed on a multi-screen.

Further, in step S6, if there is an input on the numeric keypad, it is determined whether the numeric keypad input is "O11" (step 515). If it is "0'", it is treated as if there is no numeric keypad input, and the process proceeds to step S7. If it is not "0" in step 815, the channel number corresponding to the operated numeric keypad is read from the storage device 14 (step 816), and the channel (ch) is selected (
Step 517), and cancel the channel search mode (Step 818). Next, it is determined again in step 1 whether or not the current channel search mode is selected.
If so, it is determined whether the channel search mode was used last time (step 519). If you were in channel search mode last time, change to single screen mode (step S
20>. That is, if the channel search mode is not set this time due to cancellation or the like, and if the channel search mode was set last time, a single screen display will be displayed. After the single screen mode, the contents written in the multi-screen display device 14 are initialized and erased (step 521). Furthermore, the ffi device 16 is initialized (step 522).

Note that in step S19, if 1 is not in the channel search mode last time, the process returns to step S1 again.

[Advantageous Effects of the Invention 1] As described above, according to the present invention, there is no need to display channel numbers on multiple screens, and a part of the screen does not become invisible. Moreover, a desired program can be easily selected with just one operation of the numeric keypad corresponding to the image displayed on the multi-screen.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a channel selection control device according to an embodiment of the present invention, FIG. 2 is an address map of the storage device in FIG. 1, and FIG. 3 explains the operation of the channel search control circuit in FIG. 1. FIG. 4 is a block diagram showing a conventional channel selection control device. 11... Channel selection device, 12... Numeric keypad, 1
3... Channel search control circuit, 14... Multi-screen display device, 15... Display screen, 16... Storage device. Figure 2 Figure 4

Claims (1)

[Scope of Claims] A channel selection device for selecting a receiving channel of television broadcasting, and an image memory, in which the received images of a plurality of channels are reduced and stored, and the stored contents are read out to display one screen. A multi-screen display device that divides the image and displays it on a display means, a storage device that stores the relationship between the on-screen position of an image displayed on the multi-screen and a channel number, and a key layout that corresponds to the multi-screen arrangement. key input means for operating the channels of the channel selection device; and controlling the multi-screen display device to sweep the tuning frequency of the channel selection device and display only the image of the signaled channel in one screen. In addition to controlling the storage device to perform the storage operation, when the key input means is operated during multi-screen display, the channel number corresponding to the array position of the operated key is read from the storage device. A channel selection control device comprising: channel search control means for reselecting a channel and controlling the multi-screen display device to display an image of the reselected channel on a single screen.