KR950010571A - Gain adjustment method of antenna input signal - Google Patents

Gain adjustment method of antenna input signal Download PDF

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Publication number
KR950010571A
KR950010571A KR1019930017632A KR930017632A KR950010571A KR 950010571 A KR950010571 A KR 950010571A KR 1019930017632 A KR1019930017632 A KR 1019930017632A KR 930017632 A KR930017632 A KR 930017632A KR 950010571 A KR950010571 A KR 950010571A
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KR
South Korea
Prior art keywords
attenuation
data
signal
input signal
antenna input
Prior art date
Application number
KR1019930017632A
Other languages
Korean (ko)
Other versions
KR0179969B1 (en
Inventor
김현철
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019930017632A priority Critical patent/KR0179969B1/en
Publication of KR950010571A publication Critical patent/KR950010571A/en
Application granted granted Critical
Publication of KR0179969B1 publication Critical patent/KR0179969B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/52—Automatic gain control

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

본 발명은 안테나 입력 신호의 강약에 따라 RF신호의 게인을 자동적으로 조정해 주는 안테나 입력신호의 게인 조정 방법에 관한 것으로 채널마다 RF신호의 게인이 상이하여 감쇄 스위치를 수동 조작시킴으로써 노이즈나 새튜레이션된 화면을 없애는 불편을 해소시킨 것이다.The present invention relates to a gain adjustment method of an antenna input signal that automatically adjusts the gain of an RF signal according to the strength of the antenna input signal. It eliminated the inconvenience of removing the screen.

이러한 안테나 입력신호의 게인 조정 방법은 방송중인 채널의 밴드 및 번호를 메모리시킬 때 화면 상태를 보아 감쇄 스위치를 온/오프 시킬수 있는 감쇄 데이타를 채널 데이타와 함께 메모리시키는 감쇄 데이타 메모리 과정과, 채널 선택시 채널 데이타와 함께 감쇄 데이타를 읽어내어 감쇄 스위치 온/오프용 제어신호를 출력시키는 신호 감쇄 제어과정을 포함시킨 것으로 RF신호의 게인을 자동 조정해 줄수 있다.The gain control method of the antenna input signal includes attenuation data memory process for memorizing attenuation data together with channel data to view the screen state when the band and number of a broadcasting channel are memorized and to turn on / off the attenuation switch. It includes a signal attenuation control process that reads attenuation data together with channel data and outputs a control signal for attenuation switch on / off. The gain of the RF signal can be adjusted automatically.

Description

안테나 입력신호의 게인 조정 방법Gain adjustment method of antenna input signal

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명이 적용되는 시스템 회로도.1 is a system circuit diagram to which the present invention is applied.

제2도는 본 발명 RF콘버터의 내부 회로도.2 is an internal circuit diagram of the RF converter of the present invention.

제3도는 본 발명의 플로우 챠트.3 is a flow chart of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

100 : RF콘버터 110 : RF변환부100: RF converter 110: RF converter

200 : 튜너 300 : 마이콤200: Tuner 300: Micom

400 : 키매트릭스 500 : 비휘발성 메모리400: key matrix 500: nonvolatile memory

600 : 디지트론 R1 : 저항600: Digitron R1: Resistance

AMP : 앰프 SS1,SW1 : 스위치AMP: Amplifier SS1, SW1: Switch

Claims (2)

안테나 입력신호의 강약에 따라 감쇄 스위치를 동작시켜 신호감쇄를 향하는 방법에 있어서, 방송중인 채널의 밴드 및 번호를 메모리시킬 때 화면 상태를 보아 감쇄 스위치를 온/오프 시킬수 있는 감쇄 데이타를 채널 데이타와 함께 메모리시키는 감쇄 데이타 메모리 과정과, 채널 선택시 채널 데이타와 함께 감쇄 데이타를 읽어내어 감쇄 스위치 온/오프용 제어신호를 출력시키는 신호 감쇄 제어과정을 포함하는 것을 특징으로 하는 안테나 입력신호의 게인 조정방법.In the method of operating the attenuation switch to attenuate the signal according to the strength of the antenna input signal, the attenuation data that can be turned on / off by viewing the screen state when the band and number of the broadcasting channel are memorized together with the channel data. And attenuation data memory process for storing the attenuation data, and a signal attenuation control process for reading out the attenuation data together with the channel data when the channel is selected and outputting a control signal for attenuation switch on / off. 제1항에 있어서, 감쇄 데이타는 키매트릭스의 감쇄 선택키 입력에 따라 1비트 데이타로 메모리에 저장되고 상기 1비트 데이타에 의한 제어신호로 감쇄 스위치를 제어하여 안테나 입력신호의 감쇄저항 통과를 선택하는 것을 특징으로 하는 안테나 입력신호의 게인 조정방법.The attenuation data is stored in the memory as 1-bit data according to the input of the attenuation selection key of the key matrix. The attenuation data is controlled by the control signal based on the 1-bit data to select passage of the attenuation resistance of the antenna input signal. Gain adjusting method of the antenna input signal, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930017632A 1993-09-01 1993-09-01 Gain control method of antenna input signal KR0179969B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930017632A KR0179969B1 (en) 1993-09-01 1993-09-01 Gain control method of antenna input signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930017632A KR0179969B1 (en) 1993-09-01 1993-09-01 Gain control method of antenna input signal

Publications (2)

Publication Number Publication Date
KR950010571A true KR950010571A (en) 1995-04-28
KR0179969B1 KR0179969B1 (en) 1999-05-01

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Application Number Title Priority Date Filing Date
KR1019930017632A KR0179969B1 (en) 1993-09-01 1993-09-01 Gain control method of antenna input signal

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KR (1) KR0179969B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE43145E1 (en) 1996-11-29 2012-01-24 Panasonic Corporation Processor which can favorably execute a rounding process composed of positive conversion and saturated calculation processing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE43145E1 (en) 1996-11-29 2012-01-24 Panasonic Corporation Processor which can favorably execute a rounding process composed of positive conversion and saturated calculation processing
USRE43729E1 (en) 1996-11-29 2012-10-09 Panasonic Corporation Processor which can favorably execute a rounding process composed of positive conversion and saturated calculation processing

Also Published As

Publication number Publication date
KR0179969B1 (en) 1999-05-01

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