KR19990025392A - How to Fix Channels on Your TV - Google Patents

Abstract

The present invention relates to a method for fixing a channel of a television for fast channel selection by fixing a desired channel, and the present invention provides a method for the television for tuning various programs broadcast in a plurality of channels by channel upkey or downkey. A channel tuning method, comprising: a first step of determining whether a channel up key and a down key are pressed simultaneously; A second step of determining a time when the channel up key and the down key are simultaneously pressed in a first step; A third step of storing the currently viewed channel as a fixed channel if the time when the predetermined channel up key and the down key are simultaneously pressed is greater than the predetermined time as a result of the determination of the second step; And a fourth step of tuning the stored fixed channel if the time when the channel up key and the down key are simultaneously pressed is equal to or less than a predetermined time as a result of the determination of the second step.

Therefore, the present invention has the effect of reducing the number of times of channel up key and down key manipulation for tuning a desired channel.

Description

How to Fix Channels on Your TV

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel tuning method for television, and more particularly, to a channel fixing method for television for fast channel selection by fixing a desired channel.

As is well known, each home is equipped with a television. Such a television is one of the video media that receives a broadcast signal of airwaves transmitted from a broadcasting station through an antenna, processes the received broadcast signal, and displays it on the screen.

In particular, in recent years, cable television (CATV) has been introduced to expand the choice of viewers, and such cable television has many channels and broadcasts a unique program for each channel, thus increasing the choice of viewers. .

For example, if you are interested in current affairs, you can choose to watch a news program if you are interested in sports or leisure. Now, viewers can not only get a variety of information they want with a single television, but they can also actively designate their channels.

However, as described above, airwave television and cable television broadcast various programs on a plurality of channels. When a viewer is watching a program of a certain channel and the viewer wants to check a program of another channel, the viewer may select a stored channel. The desired program was searched by channel up or down.

Therefore, when searching for a program airing on other channels in a channel that is currently being watched on a television having a plurality of channels, the channel is up or down to watch a program airing on other channels, and then before the channel is up or down. In order to watch the program of the channel that was watching in the viewer was inconvenient to do several channel up or down.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and an object of the present invention is to fix a channel that broadcasts a desired program during channel tuning, thereby reducing the number of channel upkey and downkey operations according to channel tuning. It is to provide a channel fixing method of television.

According to the present invention for achieving the above object, in the channel channel selection method of a television for selecting various programs that are broadcast on a plurality of channels by channel up key or down key, it is determined whether the channel up key and the down key are simultaneously pressed. A first step of making; A second step of determining a time when the channel up key and the down key are simultaneously pressed in the first step; A third step of storing the currently viewed channel as a fixed channel if the time when the predetermined channel up key and the down key are simultaneously pressed is equal to or greater than a predetermined time as a result of the determination of the second step; And a fourth step of tuning the stored fixed channel if the time when the channel up key and the down key are simultaneously pressed is equal to or less than a predetermined time as a result of the determination of the second step.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a hardware configuration diagram to which the present invention is applied;

2 is a flowchart for performing a channel fixing method of a television according to the present invention.

Explanation of symbols for main parts of the drawings

10: key input unit 20: micom

30: tuner 40: IF signal processing unit

50: video signal processor 60: audio signal processor

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

1 is a block diagram showing a configuration of hardware to which the present invention is applied, and includes a key input unit 10 for providing a predetermined key signal pressed by a user and a control signal corresponding to the predetermined key signal provided from the key input unit 10. MIF 20 to provide a, tuner 30 for tuning the channel corresponding to the channel tuning signal provided by the microcomputer 20, the IF to demodulate the broadcast signal of the channel tuned by the tuner (30) IF: Intemediate Frequency (IF) signal processing unit 40, IF signal processing unit 40 is processed by the image signal processing unit 50, the image signal processing unit 50 for processing the image signal provided from the demodulated signal provided The audio signal processor 60 processes audio signals other than the video signals and outputs them to the speaker SP.

Detailed operation description of the present invention configured as described above is as follows.

The key input unit 10 is composed of Kitrix and is an input means for operating a television. The key input unit 10 includes a channel up / down key, a volume control key, and the like, and provides a key signal corresponding to a user's key operation to the microcomputer 20. In general, a key signal carried on an infrared carrier wave from a remote controller is detected and output using a remote controller that can be input at a remote location.

In this case, the microcomputer 20 provides the tuner 30 with a channel tuning signal for tuning the channel corresponding to the channel up / down key provided from the key input unit 10. That is, the tuner 30 tunes a channel corresponding to the channel tuning signal provided by the microcomputer 20, and thus the phase of the reference frequency based on the crystal and the phase of the local oscillation frequency of each channel to be tuned. The control unit is controlled so as to make the local oscillation frequency of the desired channel accurate and tuned to receive the broadcast signal in the frequency band of the tuned channel and provide it to the IF signal processor 40.

Accordingly, the IF signal processor 40 demodulates the broadcast signal of the frequency band of the channel tuned by the tuner 30 and provides the demodulated signal to the video signal processor 50. That is, the video signal processor 50 detects and amplifies the video signal AM among the video signal and the audio signal including the synchronization signal provided from the IF signal processor 40 and provides the same to the monitor. At this time, the audio signal processing unit 60 separates the FM wave provided from the video signal processing unit 50 from the video signal and the frequency so that the audio signal processing unit 60 separates the voice wave (FM detection) and amplifies it again to provide the speaker SP.

Meanwhile, when the signals for the channel up key and the down key are simultaneously provided for more than a predetermined time from the key input unit 10, the microcomputer 20 stores the currently received broadcast channel, and the time for which the signals for the channel up key and the down key are provided. If this time is less than or equal to the predetermined time, the tuner 30 is controlled to tune into the stored channel.

2 is a flowchart for performing a channel fixed channel method of a television according to the present invention, which will be described in detail with reference to the block diagram shown in FIG.

First, if the channel setting mode is performed in step 200, the microcomputer 20 proceeds to step 210 to determine whether signals for the channel up key and the down key are simultaneously provided from the key input unit 10.

As a result of the determination, when signals for the channel up key and the down key are not simultaneously provided from the key input unit 10, the microcomputer 20 proceeds to step 250 and provides a control signal for executing a mode corresponding to the input key.

Meanwhile, if signals for the channel up key and the down key are simultaneously provided from the key input unit 10, the flow proceeds to step 220 and detects a time when the channel up key and the down key are simultaneously provided.

That is, the microcomputer 20 proceeds to step 230 when the time at which the channel up key and the down key are simultaneously provided in step 220 is a predetermined time, for example, 3 seconds or more, and the microcomputer 20 receives the currently received channel as a fixed channel. 20) If the time for which the channel up key and the down key are simultaneously provided is less than or equal to a preset time, that is, less than 3 seconds, the tuner 30 controls the tuner 30 to tune to the stored fixed channel.

As described above, the channel fixing method of the TV according to the present invention stores the currently received channel when the channel up key and the down key are simultaneously pressed for a predetermined time, and simultaneously the channel up key and the down key are equal to or less than a preset time. When pressed, the stored channel is tuned, thereby reducing the number of channel up and down key manipulations for tuning the desired channel.

While the invention has been shown and described with respect to certain preferred embodiments, it will be apparent to those skilled in the art that various modifications, changes and omissions can be made without departing from the spirit and scope of the invention.

Claims (1)

A channel tuning method for television for tuning various programs broadcast on a plurality of channels by channel upkey or downkey, A first step of determining whether the channel up key and the down key are pressed simultaneously; A second step of determining a time when the channel up key and the down key are simultaneously pressed in the first step; A third step of storing the currently viewed channel as a fixed channel if the time when the predetermined channel up key and the down key are simultaneously pressed is equal to or greater than a predetermined time as a result of the determination of the second step; And And a fourth step of tuning the stored fixed channel if the time when the channel up key and the down key are simultaneously pressed is equal to or less than a predetermined time as a result of the determination of the second step.