KR0179964B1 - Broadcasting channel confirmation method - Google Patents

Abstract

In the channel selection method of the broadcast receiving apparatus, when checking the broadcast program for all channels, the channel up / down key must be pressed several times, so that all the memorized channels are sequentially selected when the channel confirmation key is input to eliminate the difficulty of checking the broadcast program. By displaying only one channel for a predetermined time, you can check the broadcast program of all channels with one key input.

Description

How to check broadcast channel

1 is a system circuit diagram to which the present invention is applied.

2 is a flowchart for identifying a broadcast channel according to the present invention.

* Explanation of symbols for main parts of the drawings

100: key matrix 200: remote control receiver

300: microcomputer 400: nonvolatile memory

500: tuner 600: function processing circuit

K: Channel confirmation key ANT: Antenna

The present invention relates to a broadcast channel confirmation method for allowing a broadcast reception device such as a TV or a VCR having a function of storing a broadcast reception channel based on a digital tuning method to check the broadcast signals of all channels memorized when a channel identification key is input. It is about.

In a broadcast receiving device such as a VCR or a TV, when a broadcast program of another channel is checked in the middle of watching a broadcast program of a certain channel or when a broadcast program of a channel being watched is ended and a broadcast program of another channel is to be checked. The only way to identify all the channels was to use the channel up / down keys.

However, even if the channel being broadcasted is memorized by the digital tuning method, only the next channel can be tuned and watched by the channel up / down key, and the up / down key is pressed again to tune into the next channel. Should give.

Therefore, if you want to check the broadcasting program for all the memorized channels, you have to press the channel up / down key as many times as the number of memorized channels, so you have to press the channel up / down key several times, especially when there are many broadcasting channels. It was very inconvenient to keep pressing.

In view of the above, when the user wants to check the broadcast program, the user can simply check the broadcast program by pressing the channel identification key and sequentially tuning all the channels stored in memory, but displaying the screen of the tuned channel for a predetermined time. On the other hand, if the desired channel is selected during the channel search described above, it is possible to select the channel by pressing the channel identification key. It is possible to confirm the broadcast program for all channels by pressing one channel identification key.

As described above, the present invention aims to enable the identification of a broadcast program for all channels with a single key input. The present invention provides a key input check process for checking a channel check key input during key input, and a channel check key input in the key input check process. In this case, a search process for searching all channels while increasing the memorized channel and a pre-search channel tuning process for selecting and displaying a channel before searching for a channel after searching for all channels in the search process.

The searching process is performed by selecting one channel and displaying the channel for a predetermined time, and then tuning the next channel. When the channel is selected, the channel selection key is displayed.

This invention will be described in detail with reference to the accompanying drawings.

1 is a system circuit diagram applied to the present invention, the microcomputer 300 controls the operation of the set by controlling the function processing circuit 600 by checking the key input of the key matrix 100 and the remote control receiver 200. do.

When the broadcast channel memory key is recognized through the key matrix 100 or the remote controller receiver 200 in the microcomputer 300, the tuner 500 sends the tuning data of the lowest channel through the control line A to check whether there is a broadcast signal. If there is a broadcast signal, the channel number at that time is stored in the nonvolatile memory 400 through the control line B, and then channel data of the next channel is sent to the tuner 500 to check whether there is a broadcast signal.

The above-described process is performed sequentially by all VHF channels and all UHF channels, so that only the channel number being broadcast is stored in the nonvolatile memory 400.

Afterwards, when the channel up / down key is pressed, the channel in which the next broadcast signal is present is tuned in the currently tuned channel, which can be sequentially tuned when the channel up / down key is input in the nonvolatile memory 400. It is to be.

The microcomputer 300 controls the function of the set through the control line C in the function processing circuit 600.

However, if there are 8 channels of 2,4,8,10,42,48,54, for example, if you are watching channel 8 and want to check the program of the remaining 7 channels, you can select the channel up or channel down key. Press the channel up key (assuming channel up key) to check the program by selecting channel 10 and press the channel up key again to confirm the program on channel 42, and then press the channel up key again to check channel 48. The program of the rest of the channels could be checked.

Therefore, in order to check the broadcast program for all channels stored in the nonvolatile memory 400, it is inconvenient to continuously press the channel up / down keys.

In order to solve the problems described above, the present invention installs a channel check key (K) on the key matrix 100 and a remote controller (not shown), and then sequentially stores the all broadcast channels stored when the channel check key (K) is input. It is possible to check the broadcast program for all channels by pressing one key by displaying the broadcast signal for the tuned channel for a predetermined time.

Hereinafter, the present invention will be described based on the flowchart of FIG. 2.

First, when the power is input, the program is initialized to perform an initialization process for operating the system (S1) and processes a function related program of the system. (S2)

In this case, the system function related program processing (S2) turns on the light emitting diode for power input or puts a standby state for receiving a remote controller signal received through the remote controller receiver 200, and also transmits a scan pulse to the key matrix 100. This function performs a function such as outputting to search for key input.

The process of checking the key input is performed by the system function related program processing (S2) described above. If the key input is checked (S3), it is checked whether the checked key input is the channel confirmation key (K). (S4)

In this case, if the channel check key (K) is not executed, a program corresponding to the input key is executed to control other system operations at the key input (S5). (S6)

Since the first channel confirmation key (K) is not being searched, the designated channel should be tuned (S8). At this time, the specified channel is changed by changing the memory tuning position. (S9)

That is, when the first channel confirmation key K is pressed, the memory channel selection position is changed in the channel currently being received so that the next channel stored in memory is tuned. (S9)

When the next channel is tuned, it is delayed for a predetermined time (S10) so that the viewer can check the tuned screen, and then the key input is checked. (S11)

The time delay of the tuned screen may be such that the viewer can check the broadcast program.

Check the key input (S11) If there is no key input, check whether the above channel search operation is completed until the last channel. (S12) If the channel is not terminated, change the designated channel to the next channel and then tune in. The operation of delaying the tuned channel for a certain time is repeated.

That is, when the channel check key is input, the memory channel is sequentially tuned to display the last memory channel until the last memory channel.

When the above-described operation is performed to the last channel, the channel search operation is terminated, and all the channels are searched and displayed, and the program ends. (S13)

However, if the channel check key (K) input is checked and the channel check key (K) is input again while performing the channel search operation described above (S6), the channel search operation is stopped and the channel check key (K) is inputted. The channel of the channel is tuned and displayed. (S7)

As described above, the present invention performs a channel search process of sequentially selecting all the memorized channels when the channel identification key is input and displaying one channel for a predetermined time, thereby confirming a broadcast program of all channels with one key input. If there is a channel that you want to select during the search process, you can select it by pressing the channel confirmation key.

Therefore, there is an effect that the confirmation of broadcast programs for all channels can be performed simply by one key input.

Claims (2)

In the channel selection method of a broadcast receiving device, a key input check process for checking a channel confirmation key input during key input and a channel check key input during the key input check process increase the memory channel and search all channels. And a pre-search channel selecting process for selecting and displaying a channel before searching for a channel after searching for all channels of the searching process. The method of claim 1, wherein the searching process comprises selecting one channel and displaying the channel for a predetermined time and then tuning the next channel. When the channel is selected, the channel selection key is displayed. Broadcast channel confirmation method, characterized in that made.