KR0183701B1 - Method for switching auto channel in image device - Google Patents

Abstract

The present invention relates to an automatic channel selection method in a video apparatus, and after completing the automatic channel selection program, sequentially displaying the channels stored in the memory to check the channels stored by the automatic channel selection program so that no signal channel or user This allows the user to delete unwanted channels, thus preventing unnecessary channels from tuning into the channel.

Description

Automatic channel selection method in video equipment

1 is a block diagram showing a signal flow in a conventional television.

2 is a flowchart for explaining an automatic channel selection method according to the present invention in an imaging apparatus.

3 is a block diagram showing the flow of signals in a television that performs graphics processing separately.

* Explanation of symbols for main parts of the drawings

20: IR transmitter / receiver 21: preamp

22: microprocessor 23: graphics cursor processing unit (CPU)

24: position detection unit 15: TV microcomputer

16: tuner 17: TV signal processing unit

18: the award hall

The present invention relates to an automatic channel selection method in a video apparatus. In particular, an automatic channel selection method for automatically selecting a channel to be received and then checking the selected channel to delete unwanted channels among the automatically selected channels according to a user's judgment. It is about.

In general, in a video apparatus such as a television, when the automatic channel selection function is executed, it is judged whether or not there is a broadcast signal in the tuned channel and records the channel determined by the broadcast signal in the memory, and the channel key on the front panel or the remote controller is pressed. The channel stored in the memory is up / down as it is up / down.

However, in the conventional method, a channel without a broadcast signal is also selected by noise in the channel, and thus a signal-free channel is automatically stored. Therefore, a signal-free channel must be deleted separately after the automatic channel selection.

Accordingly, an object of the present invention is to solve the above-mentioned problems, and after executing the automatic channel selection program, the confirmation program for confirming the channel stored in the memory is continuously executed. Therefore, an unwanted channel or a channel without a broadcast signal is deleted to eliminate unnecessary channels. It is to provide an automatic channel selection method in which this is not selected.

In order to achieve the above object, the automatic channel selection method according to the present invention selects an IR transmitter for generating a command signal for performing a function of an image device, a channel to be received from an antenna, and an image signal received through the selected channel. A tuner for amplifying a signal, an image signal processor for processing an image signal output from the tuner, a micom for controlling the tuner and the image signal processor in response to a command signal of the IR transmitter, and an image tube for displaying an image signal A video device comprising: a first step of determining whether a command signal output from the IR transmitter is a signal corresponding to automatic channel selection; A second step of executing an automatic channel selection program when the command signal corresponds to an automatic channel selection in the first step; A third step of determining whether an automatic channel selection program has been performed for all channels in the second step; A fourth step of sequentially displaying channels stored in a memory by the automatic channel selection program when the automatic channel selection program is performed for all channels in the third step; A fifth step of selecting or deleting a displayed channel according to a user's manipulation; And a sixth step of determining whether the displayed channel is the last channel stored in the memory and repeating from the fourth step until the last channel is displayed.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the flow of a conventional television signal. An IR transmitter 10 for generating a signal for performing a television function and an output of the IR transmitter 10 are input to control the television signal. The TV microcomputer 15 which performs various functions, the tuner 16 which selects and amplifies the required channel signal according to the output of the television microcomputer 15, and the signal output from the tuner 16 is input, and the composite video signal is input. And a television signal processing unit 17 for processing the video signal into a television signal, and a water tube 18 for displaying the television signal.

2 is a flowchart for explaining an automatic channel selection method according to the present invention, wherein the IR command inputted to the microcomputer 15 by inputting an IR command transmitted from a television controller such as a front panel or a remote controller is in an automatic channel selection mode. The first step of determining the second step, the second step of performing the function of the IR command according to the result determined in the first step, and if the IR command is automatic channel selection after performing the automatic channel selection program automatic channel for all channels A third step of determining whether the selection program is completed; and executing the automatic channel selection program until the automatic channel selection program is completed, and sequentially displaying the channels stored in the memory by automatic channel selection when the automatic channel selection program is completed. The fourth step to determine the IR command input by the user and delete the displayed channel. A selection step of claim 5 and a display channel is composed of a sixth step of determining the last channel is stored in the memory.

3 is a block diagram showing the flow of signals in a television that performs graphics processing separately, and the same parts as those in FIG. 1 will be described with the same reference numerals.

The TV which performs graphics processing separately and displays the graphics and the cursor in the receiving hall and moves the cursor to select the function of the TV includes the IR transmitter / receiver 20 for inputting or outputting IR commands and the IR transmitter / receiver 20. A preamplifier 21 for inputting an IR command of a transmitter and transmitting it to the microprocessor 22, and a position detector 24 for converting an output of the microprocessor 22 into an IR command and transmitting it to the receiver of the IR transmitter / receiver 20. And a microprocessor 22 that decodes and processes the input IR command, performs a graphic process corresponding to the output of the microprocessor 22, performs coordinate value calculation to calculate the position of the cursor, and adjusts the position of the cursor. A graphics cursor processing unit (CPU) 23 which outputs to the microprocessor 22 and outputs the decoded IR commands to the television microcomputer 15, and various TVs according to the input IR commands. A television microcomputer 15 which performs a function, a tuner 16 for selecting or amplifying a signal of a required channel according to the output of the television microcomputer 15, and a signal output from the tuner 16 are inputted to generate a composite video signal. And a television signal processing unit 17 for processing a television signal, and a water tube 18 for displaying a television signal.

Next, the operation of the present invention will be described with reference to FIGS. 1 to 3.

When the television control signal generated by the IR transmitter 10 is input to the television microcomputer 15 (step 200), it is determined whether the input signal is a control signal for performing the automatic channel selection function (step 201). If the received signal is not a control signal for automatic channel selection, a function corresponding to the input control signal is performed (step 202).

On the other hand, if the input signal is a control signal for automatic channel selection, the automatic channel selection program is performed for all channels after the automatic channel selection program for storing a channel determined to be a broadcast signal in the memory (step 203). In step 204, the automatic channel selection program is executed until the automatic channel selection program is completed (step 203), and the selected channel is stored in the memory.

In step 204, it is determined whether the automatic channel selection program is completed, and when it is completed, the first channel stored in the memory is displayed on the receiving hall 18 (step 205). The IR command output from the IR transmitter 10 is input (step 206).

In step 207, it is determined whether the IR command is a channel deletion command. If the channel command is a channel deletion command, the displayed channel is deleted from the memory (step 208), and the channel stored next to the deleted channel is displayed (step 209). .

On the other hand, if the IR command is not a channel delete command, the next stored channel is displayed next to the displayed channel (step 209), and it is determined whether the displayed channel is the last channel stored in the memory (step 210). The automatic channel selection ends and the flow returns to step 206 if it is not the last channel stored in the memory.

The operation of the television micom in the television separately performing the graphic processing shown in FIG. 3 is the same as that of the conventional television shown in FIG.

As described above, the automatic channel selection method according to the present invention sequentially displays the channels stored in the memory after completing the automatic channel selection program, and then checks the channels stored by the automatic channel selection program so that no signal channel or the user desires. The ability to delete channels that are not present provides the effect of preventing unnecessary channels from being tuned into.

Claims (1)

An IR transmitter for generating a command signal for performing a function of a video device, a tuner for selecting a channel to be received from an antenna, amplifying the video signal received through the selected channel, and a video signal output from the tuner. A video device including a video signal processor, a microcomputer for controlling the tuner and the video signal processor in response to a command signal of the IR transmitter, and an image tube for displaying a video signal, the command being output from the IR transmitter. Determining whether the signal corresponds to an automatic channel selection; A second step of executing an automatic channel selection program when the command signal corresponds to an automatic channel selection in the first step; A third step of determining whether an automatic channel selection program has been performed for all channels in the second step; A fourth step of sequentially displaying channels stored in a memory by the automatic channel selection program when the automatic channel selection program is performed for all channels in the third step; A fifth step of selecting or deleting a displayed channel according to a user's manipulation; And a sixth step of repeating from the fourth step until the last channel is displayed by determining whether the displayed channel is the last channel stored in the memory.