KR960007540B1 - Memorizing apparatus & method of tv - Google Patents

Abstract

The system memorizes the analog quantities of numerous TV broadcasting channels. It contains the following devices. Tuner(10) receives broadcasting signals and generates them with high frequency amplification. Intermediate frequency amplifier(20) amplifies the signals of the image and the voice in intercarrier method by receiving the output signal from the tuner(10). Key entering device(30) controls key control commands equipped with an analog memory key. Micom(60) controls the analog quantity of channel by the control command from the key entering device(30). Voice amplifier(40) amplifies the voice signal from intermediate frequency amplifier(20) by the control of the micom(60). Speaker(80) converts the voice signals into voice. Memory device(70) memorizes the analog quantity determining the state of current channel. Image signal processor(50) processes the image signals to display them into a CRT(90).

Description

Analog quantity memory device and method per channel

1 is a block diagram showing an embodiment of an analog channel memory device for each channel according to the present invention.

2 is a flowchart according to an embodiment of the present invention, in which a channel-specific analog amount memory method according to the present invention is shown step by step.

* Explanation of symbols for the main parts of the drawings

10: tuner 20: intermediate frequency amplifier

30: key input unit 40: voice amplifier

50: video signal processor 60: microcomputer

70: memory 80: speaker

90: CRT

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a channel-specific analog memory device and method, and more particularly, to a channel-specific analog memory device and method for storing respective analog amounts for determining the state of each channel of each broadcast channel.

In a conventional television system, an analog quantity for determining channel conditions such as contrast, color, brightness, sharpness, color, etc. is set for all channels, so that one channel Changing the analog quantity at will change the analog quantity for all channels.

In the conventional television system, whenever the television set is turned on in the state where there is no memory of the analog quantity for determining the channel state, the analog quantity for determining the constant channel state is always output irrespective of each channel.

However, the conventional television system has a problem in that it is difficult to output an analog quantity for determining a unique channel state suitable for each channel when the first television system is turned on because the strength of the broadcast reception signal is different for each channel broadcast.

Accordingly, the present invention has been made to solve the above-mentioned drawbacks of the prior art, and a channel-specific analog amount memory device and method capable of controlling and storing each analog amount for determining a unique channel state suitable for each broadcasting channel are provided. The purpose is to provide.

In order to achieve the above object, the present invention provides a channel-specific analog amount memory device of a television system, comprising: a key input unit having an analog memory key; A memory unit for storing analog amounts for determining respective states according to a plurality of broadcast channels; And changing the broadcasting channel to receive a signal corresponding to the analog memory key from the key input unit, and to store the analog amount for determining the currently set channel state in the memory unit.

In addition, the present invention for achieving the object of the present invention is a channel-specific analog amount memory method of a television system, comprising the steps of: outputting an analog amount for determining the channel state previously memorized when the television is turned on; Determining whether to turn off the television set if the broadcast channel is changed; And if it is to be turned off, applying an analog memory control command for determining a corresponding channel state before turning off the memory to store the analog amount for determining the current channel state.

As shown in the accompanying drawings, an embodiment of the present invention as follows.

Referring to FIG. 1, FIG. 1 is a block diagram showing an embodiment of an analog-type memory device for each channel according to the present invention. The tuner 10 receives a high frequency signal and amplifies and outputs a broadcast signal. An intermediate frequency amplifier 20 for common amplification of an image signal and an audio signal through an intercarrier method, a key input unit 30 for applying a key control command having an analog memory key, and a key input unit 30. According to the control command of the microcomputer (60) for controlling the analog amount according to the channel state, and the audio amplifier by amplifying and outputting the audio signal from the intermediate frequency amplifier (20) under the control of the microcomputer ( 40, a speaker 80 for converting the voice signal to the voice amplifier 40, and outputting the voice, and a memory unit for storing the analog amount for determining the current channel state under the control of the microcomputer 60; 70, intermediate notes The image signal processor 50 receives the image signal from the male amplifier 20 and processes the image to be displayed on the screen, and receives the signal according to the processing of the image signal processor 50 to display the image. It comprises a CRT (Cathode Ray Tube) (90).

Referring to FIG. 2, the present invention thus achieved is as follows.

First, the tuner 10 receives a plurality of broadcast signals through a predetermined antenna, receives a specific broadcast signal, and amplifies and outputs a high frequency signal. The intermediate frequency (IF) amplifier 20 outputs the output of the tuner 10. The video signal and the audio signal are commonly amplified by the intercarrier method, and the key input unit 30 applies a key control command with an analog memory key, and the microcomputer 60 corresponds to the control command of the key input unit 30. Control the analog quantity according to channel status.

Next, the voice amplifier 40 receives and amplifies and outputs a voice signal from the intermediate frequency amplifier 20 under the control of the microcomputer 60, and the speaker 80 applies the output of the voice amplifier 40. The memory unit 70 receives the control from the microcomputer 60 to store the analog amount which determines the state of the current channel, and the image signal processing unit 50 from the intermediate frequency amplification unit 20. It is processed to display the image on the screen by receiving the image signal.

In addition, the CRT 90 receives a signal according to the processing of the image signal processor 50 and displays the corresponding image.

That is, when the broadcast signal received through the tuner 10 is displayed through the CRT 90, the broadcast signal received through the tuner 10 is displayed according to the condition of the analog amount set in the memory unit 70 such as contrast, color amount, and brightness.

In addition, the user may set an analog amount so as to be the best condition for viewing according to each channel by key manipulation through the key input unit 30.

Therefore, when the analog amount that is the best condition is set for the current channel, the microcomputer 60 applies the analog memory control command key of the key input unit 30 to the memory unit 70 according to the control command. Save it.

FIG. 2 is an algorithm according to FIG. 1, which is a flowchart showing step by step an embodiment of a channel-specific analog amount memory method according to the present invention.

First, when the television is turned on (100), an analog quantity for determining the channel state previously stored is output (110).

Next, when the user changes the current channel (120), the user sets the analog amount that satisfies the best condition in the changed channel.

Subsequently, when the television is turned off (130), the current analog amount for determining the channel state is stored in the memory unit 70 by applying an analog memory control command of the key input unit 30 (140, 150).

As described above, the present invention has the effect of eliminating the inconvenience of changing the analog amount determining the channel state according to each channel change by separately storing the appropriate analog amount determining the channel state for each broadcasting channel. have.

Claims (3)

A tuner 10 for receiving a broadcast signal and amplifying and outputting a high frequency signal; An intermediate frequency amplifier 20 which receives the output of the tuner 10 and common amplifies the video signal and the audio signal in an intercarrier manner; A key input unit (30) for applying a key control command having an analog memory key; A microcomputer 60 for controlling an analog amount according to a channel state according to a control command of the key input unit 30; A voice amplifier 40 which receives and amplifies and outputs a voice signal from the amplifying unit 20 by the control of the microcomputer 60; A speaker 80 which receives the output of the voice amplifier 40 and converts it into voice; A memory unit 70 for storing an analog amount for determining a state of a current channel under control of the microcomputer 60; An image signal processor (50) for receiving an image signal from the intermediate frequency amplifier (20) and processing the image signal to be displayed on a corresponding screen; And a CRT (90) for receiving the signal according to the processing of the image signal processor (50) to display the corresponding image. Outputting (110) an analog quantity for determining the channel state previously stored when the television is turned on (100); If the current channel is changed (120), the user sets an analog amount for the best condition in the changed channel; And storing (140,150) the current analog quantity that determines the channel state when the television is turned off (130). 3. The analog memory method for each channel according to claim 2, wherein the analog amount for determining the channel state is contrast, color amount, brightness, image quality, or color.