KR970057685A - Method and apparatus for two-tuner switching in the TVR's green mode - Google Patents

Method and apparatus for two-tuner switching in the TVR's green mode Download PDF

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Publication number
KR970057685A
KR970057685A KR1019950058554A KR19950058554A KR970057685A KR 970057685 A KR970057685 A KR 970057685A KR 1019950058554 A KR1019950058554 A KR 1019950058554A KR 19950058554 A KR19950058554 A KR 19950058554A KR 970057685 A KR970057685 A KR 970057685A
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KR
South Korea
Prior art keywords
tuner
recording
gain control
automatic gain
control voltage
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KR1019950058554A
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Korean (ko)
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KR0174883B1 (en
Inventor
김호곤
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배순훈
대우전자 주식회사
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Priority to KR1019950058554A priority Critical patent/KR0174883B1/en
Publication of KR970057685A publication Critical patent/KR970057685A/en
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Publication of KR0174883B1 publication Critical patent/KR0174883B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/782—Television signal recording using magnetic recording on tape
    • 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
    • H04N5/50—Tuning indicators; Automatic tuning control
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/036—Radio; TV

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

본 발명은 티브이씨알의 기록모드시 2-튜너 전환방법 및 장치에 관한 것으로서, 이는 두 개의 튜너중 어느 하나의 튜너 설정 채널을 기록시에 그 튜너의 수신감도를 자동으로 검출하여 기록신호의 수신감도가 과도하게 낮으면 현재 시청중인 다른 튜너의 대역을 기록채널의 대역으로 전환시켜 기록하고 시청하도록 한 것이다.The present invention relates to a method and a device for two-tuner switching in the TV mode recording mode, which automatically detects the sensitivity of the tuner when recording the tuner setting channel of any of the two tuners, thereby receiving the sensitivity of the recording signal. Is too low, the band of the other tuner currently being watched is switched to the recording channel band for recording and watching.

상기와 같은 본 발명은 두 튜너중 기록튜너를 설정하고 방송신호가 존재하는가를 판단하는 단계와; 방송신호가 존재하면 기록 튜너의 자동이득 제어전압을 검출하여 설정전압과 비교 판단하는 단계와; 상기 판단 결과 자동이득 제어전압이 낮으면 시청하는 튜너의 채널을 기록 튜너의 채널과 같은 대역으로 변환하여 방송신호가 존재하는가를 판단하는 단계와; 판단려과 방송신호가 존재하면 기록튜너와 시청튜너의 자동이득 제어전압을 비교 판단하는 단계와; 비교결과 시청튜너의 자동이득전압이 크면 그 시청튜너로 전환하여 그로부터의 방송 프로그램을 기록하는 단계로 이루어짐으로서 달성된다.The present invention as described above comprises the steps of setting a record tuner of two tuners and determining whether a broadcast signal exists; Detecting the automatic gain control voltage of the recording tuner if the broadcast signal exists and comparing the set voltage with the set voltage; If the automatic gain control voltage is low as a result of the determination, converting the tuner channel to the same band as the channel of the recording tuner to determine whether a broadcast signal exists; Comparing the automatic gain control voltages of the recording tuner and the viewing tuner if the determination signal and the broadcast signal exist; As a result of the comparison, if the automatic gain voltage of the viewing tuner is large, it is achieved by switching to the viewing tuner and recording the broadcast program therefrom.

Description

티브이씨알의 기록모드시 2-튜너 전환방법 및 장치Method and apparatus for two-tuner switching in TV seeding recording mode

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

제1도는 종래 티브이씨알의 2-튜너 전환장치의 시스템 구성도.1 is a system configuration diagram of a conventional TV tuner two-tuner converter.

제2도는 본 발명 티브이씨알의 기록모드시 2-튜너 전환장치의 시스템 구성도.2 is a system configuration diagram of a two-tuner switching device in the recording mode of the television of the present invention.

제3도는 제2도에 따른 기록모드시의 2-튜너 전환방법에 대한 동작 신호흐름도.3 is an operation signal flow diagram for the two-tuner switching method in the recording mode according to FIG.

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

100 : 제1튜너 101 : 제2튜너100: first tuner 101: second tuner

102 : 리모트 콘트롤러 104 : 마이크로 프로세서102: remote controller 104: microprocessor

105 : 제1스위칭부 106 : 제2스위칭부105: first switching unit 106: second switching unit

118 : 제1수신 감도 검출부 119 : 제2 수신 감도 검출부118: first reception sensitivity detection unit 119: second reception sensitivity detection unit

120 : 제1 아날로그/디지탈 변환부 121 : 제2 아날로그/디지탈 변환부120: first analog / digital converter 121: second analog / digital converter

Claims (3)

적어도 두개 이상의 튜너를 구비한 티브이씨알에서의 두개의 튜너중 기록하고자 하는 튜너를 설정하고 스탠바이 상태에서 상기 두 튜너로 부터의 방송신호가 존재하는가를 판단하는 제1단계와; 상기 방송신호가 존재하면 기록 튜너의 자동이득 제어전압을 검출하여 설정전압과를 비교 판단하는 제2단계와; 상기 판단결과 자동이득 제어전압이 낮으면 시청모드 튜너의 채널을 기록모드 튜너의 채널과 같은 대역으로 변환하여 방송신호가 존재하는가를 판단하는 제3단계와; 상기 판단결과 방송신호가 존재하면 기록모드 튜너의 자동이득 제어전압과 시청모드 튜너의 자동이득 제어전압을 비교 판단하는 제4단계와; 상기 비교결과 시청모드 튜너의 자동이득 제어전압이 크면 그 시청모드 튜너로 전환하여 그로부터의 방송 프로그램을 기록하고 기록이 완료 되었는가를 판단하는 제5단계와; 상기 판단결과 기록 완료이면 처음 기록튜너로 전환하는 제6단계로 이루어짐을 특징으로 한 티브이씨알의 기록모드시 2-튜너 전환방법.A first step of setting a tuner to be recorded among two tuners in the TVR having at least two tuners and determining whether there is a broadcast signal from the two tuners in the standby state; Detecting the automatic gain control voltage of the recording tuner and comparing the set voltage with the set voltage if the broadcast signal exists; A third step of determining whether a broadcast signal exists by converting a channel of a viewing mode tuner into a band identical to that of a recording mode tuner when the automatic gain control voltage is low as a result of the determination; A fourth step of comparing and determining the automatic gain control voltage of the recording mode tuner and the automatic gain control voltage of the viewing mode tuner if the broadcast signal exists as a result of the determination; A fifth step of, if the automatic gain control voltage of the viewing mode tuner is large as a result of the comparison, switching to the viewing mode tuner to record a broadcast program therefrom and determining whether recording is completed; And a sixth step of switching to the first recording tuner if the recording is completed as a result of the determination. 제1항에 있어서, 제5단계는 상기 제2내지 제4단계에서의 기록 튜너의 전압이 설정전압 보다 크고 시청모드 튜너의 방송프로그램신호가 존재하지 않으며 기록모드 튜너의 자동이득 제어전압이 시청모드 튜너의 자동이득 제어전압 보다 크면 상기 제1단계에서 설정된 기록 튜너의 방송 프로그램을 그대로 기록하는 것을 특징으로 한 티브이씨알의 기록모드시 2-튜너 전환방법.The method of claim 1, wherein in the fifth step, the voltage of the recording tuner in the second to fourth steps is larger than the set voltage, and there is no broadcast program signal of the viewing mode tuner, and the automatic gain control voltage of the recording mode tuner is in the viewing mode. If the tuner's auto gain control voltage is greater than the tuner, the broadcast program of the recording tuner set in the first step is recorded. 제1, 제2튜너를 통해 선국된 채널 방송신호의 수신감도를 자동이득 제어전압을 가지고 검출하는 제1, 제2 수신감도 검출수단과; 상기 제1, 제2수신감도 검출수단에서 얻어진 수신감도신호를 디지탈신호로 샘플링하여 출력하는 제1, 제2 아날로그/디지탈 변환수단과; 리모트 콘트롤러로 부터 입력되는 키이 데이타에 따라 상기 제1, 제2 튜너중 어느 하나의 튜너를 기록모드 튜너로 설정하고 다른 하나의 튜너를 시청모드 튜너로 설정하여 제1, 제2 스위칭수단을 통해 기록모드 및 시청모드로 전환하였다가 상기 제1, 제2 아날로그/디지탈 변환수단에서 입력되는 수신감도신호를 비교하여 현재 설정된 기록튜너의 수신감도가 낮으면 시청모드 튜너의 채널을 기록모드 튜너의 대역으로 튜닝한 후에 상기 제2 스위칭수단을 통해 브이씨알에 기록하도록 하는 마이크로 프로세서로 포함하여 구성함을 특징으로 한 티브이씨알의 기록모드시 2-튜너 전환장치.First and second reception sensitivity detecting means for detecting a reception sensitivity of the channel broadcast signal tuned through the first and second tuners with an automatic gain control voltage; First and second analog / digital conversion means for sampling and outputting a received sensitivity signal obtained by the first and second reception sensitivity detection means as a digital signal; According to the key data input from the remote controller, one of the first and second tuners is set as the recording mode tuner, and the other is set as the viewing mode tuner and recorded through the first and second switching means. If the reception sensitivity of the currently set recording tuner is low by switching between the viewing mode and the viewing mode and inputting from the first and second analog / digital conversion means, the channel of the viewing mode tuner is used as the band of the recording mode tuner. And a microprocessor configured to include a microprocessor for recording to the VAL through the second switching means after the tuning. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950058554A 1995-12-27 1995-12-27 Method for 2-tuner conversion in recording mode of tvcr and its apparatus KR0174883B1 (en)

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KR1019950058554A KR0174883B1 (en) 1995-12-27 1995-12-27 Method for 2-tuner conversion in recording mode of tvcr and its apparatus

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KR1019950058554A KR0174883B1 (en) 1995-12-27 1995-12-27 Method for 2-tuner conversion in recording mode of tvcr and its apparatus

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KR970057685A true KR970057685A (en) 1997-07-31
KR0174883B1 KR0174883B1 (en) 1999-03-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100600336B1 (en) * 2004-11-03 2006-07-19 주식회사 휴맥스 Dual tuner of digital broadcasting receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100600336B1 (en) * 2004-11-03 2006-07-19 주식회사 휴맥스 Dual tuner of digital broadcasting receiver

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KR0174883B1 (en) 1999-03-20

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