KR910013701A - Automatic tuning device and method - Google Patents

Automatic tuning device and method Download PDF

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Publication number
KR910013701A
KR910013701A KR1019890018716A KR890018716A KR910013701A KR 910013701 A KR910013701 A KR 910013701A KR 1019890018716 A KR1019890018716 A KR 1019890018716A KR 890018716 A KR890018716 A KR 890018716A KR 910013701 A KR910013701 A KR 910013701A
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South Korea
Prior art keywords
frequency
signal
user
broadcast
prescribed
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KR1019890018716A
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Korean (ko)
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KR950002040B1 (en
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최성규
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강진구
삼성전자 주식회사
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Priority to KR89018716A priority Critical patent/KR950002040B1/en
Publication of KR910013701A publication Critical patent/KR910013701A/en
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Publication of KR950002040B1 publication Critical patent/KR950002040B1/en

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  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

내용 없음.No content.

Description

자동동조장치 및 방법Automatic tuning device and method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명에 따른 자동동조장치의 회로도,3 is a circuit diagram of an automatic tuning device according to the present invention;

제4도는 제3도에 도시된 장차의 각 부분에 대한 동작 파형도,4 is an operating waveform diagram of each part of the future shown in FIG.

제5도는 본 발명에 따른 자동동조방법의 흐름도.5 is a flowchart of an automatic tuning method according to the present invention.

Claims (4)

광대역수신기에 있어서, 입력단자로 유입되는 논리신호의 상태에 따라 선택주파수를 대역을 지정하기 위한 제어신호들을 송출하고 주편회로들을 제어하는 마이크로프로세서(10)와, 공중선을 통해 유입되는 고주파신호중상기 마이크로 프로세서로 부터 인가된 제어 신호가 지정하는 주파수대역을 선택하는 주파수합성형 튜너(20)와, 상기 주파수합성형 튜너의 추력을 주파수변환 하여 제1출력단자를 통해 검파수단쪽으로 송출하는 한편 상기 주파수 합성형 튜너의 출력주파수에 따라 크기가 다른 전압을 갖는 오토파인튜닝신호를 제2출력단자를 통해 송출하는 중간주파복조부(30)와, 상기 중간주파복조부의 제2출력단자쪽 출력신호를 논리화하여 상기 마이크로 프로세서의 입력단자에 공급하기 위한 비교기(40)과, 상기 비교수단과 상기 중간주파복조부 사이에 접속되어 상기 중간주파복조부의 출력인 오토파인튜닝 신호를 미분하는 미분수단(50)을 포함함을 특징으로 하는 자동동조장치.In the broadband receiver, a microprocessor (10) for transmitting control signals for designating a band as a selection frequency and controlling the slab circuits according to the state of the logic signal flowing into the input terminal, and the high frequency signal among the high frequency signals flowing through the aerial. A frequency synthesizer tuner 20 that selects a frequency band designated by a control signal applied from a processor, and converts the thrust of the frequency synthesizer tuner into a detection means through a first output terminal and sends the frequency to the detector; An intermediate frequency demodulator 30 for transmitting an auto fine tuning signal having a voltage having a different magnitude according to the output frequency of the type tuner through a second output terminal, and an output signal toward the second output terminal of the intermediate frequency demodulator Comparator 40 for supplying to the input terminal of the microprocessor, the comparison means and the intermediate frequency demodulator And a differential means (50) connected between the differential means for differentiating an auto fine tuning signal which is an output of the intermediate frequency demodulation section. 광대역수신기의 동조 방법에 있어서, 사용자가 설정한 채널의 규정된 방송 주파수를 포함한 제1주파수대역의 고주파신호를 일정 주파수씩 분할하고 분할된 주파수대역의 고주파신호들을 순차적으로 선택하여 실제 방송주파수인가 검사하는 제1팀색과정과, 상기 제1탐색과정에서 실제방송주파수가 검출되지 않을 경우 사용자가 설정한 규정된 방송주파수를 포함한 제2주파수 영역의 고주파신호를 일정주파수씩 분할 하고 분할된 주파수대역의 고주파신호들을 순차적으로 선택하여 실제 방송주파수인가 검사하는 제2탐색과정과, 상기 제1,2탐색과정에서 실제방송주파수가 감지될시 실제방송 주파수가 감지된 때의 주파수를 고주파신호의 선택주파수로 지정하는 선택주파수지정과정을 포함함을 특징으로 하는 자동동조방법.In the tuning method of a wideband receiver, a high frequency signal of a first frequency band including a prescribed broadcast frequency of a channel set by a user is divided by a predetermined frequency, and the high frequency signals of the divided frequency band are sequentially selected to check whether the actual broadcasting frequency is applied. When the first team search process and the actual broadcast frequency is not detected in the first search process, the high frequency signal of the second frequency domain including the prescribed broadcast frequency set by the user is divided by a predetermined frequency and the high frequency of the divided frequency band A second search process of selecting signals sequentially and checking whether the actual broadcast frequency is applied, and designating a frequency when the actual broadcast frequency is detected as a selection frequency of the high frequency signal when the actual broadcast frequency is detected in the first and second search processes An automatic tuning method comprising a selective frequency specification process. 제1항에 있어서, 상기 제1주파수영역의 최소값은 사용자가 지정한 채널의 규정방송주파수보다 작게 그리고 상기 제2주파수영역의 최대값은 사용자가 지정한 채널의 규정주파수보다 크게 설정함을 특징으로 하는 자동동조방법.The method of claim 1, wherein the minimum value of the first frequency region is set to be smaller than the prescribed broadcasting frequency of the channel designated by the user, and the maximum value of the second frequency region is set to be larger than the prescribed frequency of the channel designated by the user. Synchronization method. 제2항에 있어서, 상기 제1주파수영역의 최소값과 상기 제2주파수영역의 최대값은 사용자가 지정한 채널의 규정방송주파수와 차주파수가 동일하게 설정함을 특징으로 하는 자동동조방법.The automatic tuning method according to claim 2, wherein the minimum value of the first frequency region and the maximum value of the second frequency region are set equal to a predetermined broadcast frequency and a difference frequency of a channel designated by a user. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR89018716A 1989-12-16 1989-12-16 Auto-frequency tuning device KR950002040B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR89018716A KR950002040B1 (en) 1989-12-16 1989-12-16 Auto-frequency tuning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR89018716A KR950002040B1 (en) 1989-12-16 1989-12-16 Auto-frequency tuning device

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KR910013701A true KR910013701A (en) 1991-08-08
KR950002040B1 KR950002040B1 (en) 1995-03-08

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KR89018716A KR950002040B1 (en) 1989-12-16 1989-12-16 Auto-frequency tuning device

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KR950002040B1 (en) 1995-03-08

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