KR19990004331A - Tuning Channel Mapping Method - Google Patents

Abstract

The present invention relates to a channel channel selection method of a broadcast signal in a television. In particular, a first process of setting a specific unique number for each of a plurality of users, and a specific memory area are divided and correspond one-to-one to each of the unique numbers. And a third process of storing each data according to a predetermined number of channels in a memory area mapped in the second process, and accordingly, randomly. A first step in which a user of his / her own number is input; a second step of determining whether a same code exists by comparing the unique number input in the first step with previously registered unique numbers; A third step of accessing a memory area corresponding to the corresponding code when the existence of the same code is confirmed in step 2, and the third stage And a fourth step of performing a channel up / down function on the basis of data accessed through the system.

Description

Tuning Channel Mapping Method

The present invention relates to a tuning method in a television receiver, and more particularly, to a tuning channel mapping method for each user in consideration of different tastes of channel selection for each user of the tuning of a wireless television broadcasting channel and the number of times of tuning a cable television broadcasting channel. will be.

In general, modern people have a strong tendency to be specialized and specialized, and in order to satisfy this, they are privatized in addition to monolithic conventional radio television broadcasts and deal only with certain broadcast programs (eg, etc., music, news, movies, ...). Cable television (hereinafter referred to as CATV) broadcasting was started.

A general television broadcast receiver configured to receive such a broadcast program and provide the same to a user is illustrated in FIG. 1.

1 is a simplified block diagram of a general television broadcast receiver, in which reference numeral 1 denotes an antenna, and 2 denotes an RF amplification for amplifying a radio frequency (hereinafter referred to as RF) signal received through the antenna 1. 3 denotes an intermediate frequency (hereinafter referred to as IF) by mixing the radio frequency signal output from the RF amplifier 2 and the oscillation frequency signal output from the local oscillation circuit 17 to be described later. The first mixer outputs a signal.

Further, reference numeral 4 denotes an IF amplifier section for amplifying the intermediate frequency signal output from the first mixer 3, and 5 denotes an image intermediate frequency signal PIF in the intermediate frequency signal output from the IF amplifier section 4. And a P / S separator for separating the voice intermediate frequency signal SIF, and 6 represents a voice detector for detecting a voice signal from the voice intermediate frequency signal SIF output from the P / S separator 5. 7 denotes an image detector for detecting an image signal from an image intermediate frequency signal PIF output from the P / S separator 5.

In addition, reference numeral 8 denotes a remote control device that allows a viewer to select a desired channel or to select each mode of the television, that is, a TV / AV mode, and 9 denotes an infrared signal from the remote control device 8. 10 shows a receiver for converting a conventional code signal, 10 denotes a channel memory in which predetermined channel data is stored, and 11 denotes a microprocessor which controls the entire system in accordance with an input signal from the remote controller device 8.

In addition, reference numeral 12 denotes a screen display for overlapping and outputting a character or a picture on a screen on which a broadcast signal is output separately from the broadcast signal according to the control signal of the microprocessor 11 (On Screen Display). (Hereinafter referred to as OSD), and 13 denotes a PWM generator which generates a predetermined pulse width modulation (PWM) signal according to a control signal from the microprocessor 11, and 14 denotes the above. An integration circuit for integrating the PWM signal output from the PWM generator 13 to generate a predetermined level signal is shown.

In this case, when the viewer selects a predetermined channel using the remote controller device 8, the microprocessor 11 reads out channel data corresponding to the channel selected by the viewer from the channel memory 10 and then based on the selected channel. By controlling the PWM generator 13 to generate a predetermined PWM signal, the PWM signal is output as a voltage control signal corresponding to the channel selected by the viewer through the integrator circuit 14.

In addition, reference numeral 15 is provided for a precise tuning operation, and represents an Auto Fine Tunning circuit (hereinafter referred to as AFT) circuit 15, and 16 represents a voltage signal applied from the integrating circuit 14; An adder for adding a voltage signal applied from the AFT circuit 15 is shown, and 17 represents a local oscillating circuit for outputting a predetermined oscillation frequency.

In addition, reference numeral 18 controls the amplification degree of the above-described RF amplifier 102 and the IF amplifier 4 on the basis of the level of the image signal detected by the image detector 7, the image detector ( Figure 7 shows the Automatic Gain Control (AGC) circuit that controls the video signal output level from 7).

On the other hand, reference numeral 19 denotes an external AV device such as a VCR or a laser disc player, and 20 denotes the voice detector 6 and the image detector 7 according to the switching signal from the microprocessor 11 described above. A first switching section for selectively outputting audio and video signals from and external audio and video signals from the external AV device 19 is shown.

Although reference numeral 23 is not shown for the image signal output from the first switching unit 20, the color, tint, and brightness are in accordance with the control signal from the microprocessor 11. A video processing unit which processes (Brightness) and the like and outputs R (Red), G (Green), and B (Blue) signals corresponding to the video signal.

The RGB signal output from the image processor 23 is output by mixing RGB and OSD blanking signals Y ′, which are output signals of the OSD generator 12 described above, in the second mixer indicated by reference numeral 24. Reference numeral 25 denotes a CRT driving unit for driving the CRT based on the RGB signal output from the mixer 24.

In addition, reference numeral 21 denotes a base, treble, and volume according to a control signal from the microprocessor 11 although not shown for the voice signal output from the first switching unit 20. A voice processing unit for executing voice processing such as a volume), and 22 denotes a voice amplifying unit for amplifying and outputting the voice signal processed by the voice processing unit 21 to a speaker.

In the general TV configured as described above, when the viewer selects the TV / AV mode by using the remote controller 8, the microprocessor 11 controls the switching unit 20 to control the voice detector 6. And by selectively outputting the video and audio signals from the video detector 7 or the video and audio signals from the external AV device 19 to the video processor 23 and the audio processor 21. Can watch the video and audio through the CRT and speakers of the TV.

In addition, the RF amplifier 2 is connected to a wired cable in addition to the antenna signal to receive and watch CATV broadcast through the above-described process.

Referring to the conventional broadcasting channel tuning method in the general broadcasting receiver configured as described above, when the user tunes into any TV channel through the remote control device 8, the microprocessor 11 inputs it through the receiver 9; In response to this, the frequency generated by the PWM generator 13 is controlled in correspondence with the frequency band of the channel (TV broadcasting 2 to 69 channels) to be tuned among the wireless television broadcasting channels.

In addition, when a user selects an arbitrary CATV channel through the remote control device 8, the microprocessor 11 receives it through the receiver 9 and accordingly transmits the frequency generated by the PWM generator 13 according to the cable TV broadcast. Control is performed in correspondence with the frequency band of the channel (CATV broadcasting channels 1 to 125) to be tuned among the channels.

Therefore, if the broadcast being watched by the user is in the TV mode, the channel selection changes according to the increase or decrease of the channel selection, and is changed from the second channel to the 69th channel. In addition, if the broadcast being watched by the user is in the CATV mode, the channel change due to the channel tuning is increased or decreased from the first channel to the 125th channel of the CATV broadcast.

Therefore, when a user selects CATV while watching TV or when they want to watch TV while watching CATV, a considerable amount of time should be spent searching for a desired channel. Each configuration has a significant difficulty since the preferred tuning channel will be different.

For example, if one assumes that they prefer news channels on CATV only to watch news, and others prefer only movie channels, then they should be familiar with the channels they frequently watch. If not, an unpleasant problem arises, such as having to search all channels.

An object of the present invention for solving the above problems, each user is assigned his own unique number, each of the user selects the channel group they prefer, and the channels selected by their own in the memory mapping area assigned to their own code The present invention provides a method for mapping a channel broadcasting channel of a television broadcast signal to store only the channels that the user prefers to map sequentially when storing and inputting a unique code thereof to perform the up-down function for channel selection.

1 is a block diagram illustrating a general television receiver.

2 is a flowchart of a channel selection channel mapping method of a television broadcast signal according to the present invention.

A feature of the present invention for achieving the above object is a first process of setting a specific unique number for each of a plurality of users, and mapping relationship by dividing a specific memory area and one-to-one correspondence to each unique number And a third process of storing each data according to a predetermined number of channels in a memory area mapped in the second process.

Another feature of the present invention for achieving the above object is, in a television that each of the plurality of users set the memory area according to a specific unique number and then the selected channel selected by the user in the memory area corresponding to the plurality of users In the channel tuning method of the broadcast signal, the first step in which any user inputs his or her own number, and the same code is compared by comparing the unique number input in the first step with the registered unique numbers A second step of determining whether to perform the operation; a third step of accessing a memory area corresponding to the corresponding code when the existence of the same code is confirmed in the second step; and channel up / down based on the data accessed through the third step. And a fourth step of performing the down function.

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

First, the arrangement of the CATV broadcasting channel and the TV broadcasting channel is as shown in the following table.

TV 2 to 13 14-43 44-69 CATV One 2 to 13 14-65 66-94 95-99 100-125

At this time, the user sets a unique ID, that is, a password, to map a part of the memory area. Subsequently, it is assumed that channels according to one's taste are selected and stored in a memory mapping area set corresponding to the user's ID.

Referring to FIG. 2, the channel mapping method according to the present invention will be described as follows.

In step S101, the microprocessor 11 determines whether there is a mapping code input in the channel selection mode through the remote controller device 8, and if it is determined that there is a mapping code input, the microprocessor 11 proceeds to step S102 to search for pre-registered mapping codes. do. From step S103 it is determined whether there is data matching the mapping code input in step S101 among the mapping codes searched in step S102. If the matching data is absent, the process proceeds to step S104 to warn the error message. The flow advances to step S101.

If it is determined in step S103 that there is data matching the mapping code input in step S101 among the mapping codes searched in step S102, the flow proceeds to step S105 and the mapping input in step S101 is performed. By accessing the memory mapping area according to the code, data on the preset channels stored in advance by the user who inputs the mapping code input in step S101 is read.

After the data is read in step S105, the process proceeds to step S106 to perform the channel up / down function based on the data read in the step S105 when the existing channel up / down function is performed.

According to the method of mapping the channel broadcasting channel of the television broadcast signal according to the present invention operating as described above, in the home or group consisting of members of the modern personality with a strong personality, each of the components because the preferred channel is different This eliminates the problem of having to remember the preferred broadcast channel.

Claims (1)

In the channel tuning method of a broadcast signal in a television in which a plurality of users each set a memory area according to a specific unique number, and the selected channel selected by the user is stored in a memory area corresponding thereto. A first step in which any user inputs his or her unique number; A second step of judging whether the same code exists by comparing the unique number input in the first step with previously registered unique numbers; A third step of accessing a memory area corresponding to the corresponding code when the existence of the same code is confirmed in the second step; And And a fourth step of performing a channel up / down function on the basis of the data accessed through the third step.