[특허]Method and apparatus for tuning and aligning an FM receiver

Method and apparatus for tuning and aligning an FM receiver 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-001/16
출원번호	US-0952554 (1992-09-28)
발명자 / 주소	Osburn David W. (Kokomo IN) Pacourek John R. (Kokomo IN) Easterwood Michael J. (Kokomo IN) Inman Stephen L. (Kokomo IN) Kennedy Richard A. (Kokomo IN)
출원인 / 주소	Delco Electronics Corporation (Kokomo IN 02)
인용정보	피인용 횟수 : 66 인용 특허 : 0

초록 ▼

A method for tuning and aligning an electronically tuned FM broadcast receiver is described. The system described compensates for the mismatch of component values between the antenna and RF amplifier tuned circuits, and the IF offset between the local oscillator frequency and the center frequencies of the antenna and RF resonant circuits by developing independent tuning signals for the circuits. The system also provides temperature compensation, and can be aligned without mechanically adjusting inductors and/or capacitors in the tuned circuits.

대표청구항 ▼

A method for tuning an FM receiver front end including at least one tank resonant circuit and one VCO, comprising the steps of: receiving a control signal indicative of a desired FM channel frequency; developing a VCO tuning voltage signal responsive to the control signal; applying the VCO tuning voltage signal to a series circuit including a diode to develop a voltage drop across the diode; developing at least one gain command responsive to (i) the control signal and (ii) at least one predetermined variable; and developing a tank tuning voltage for the tank resonant circuit responsive to (i) the VCO tuning voltage signal, (ii) the gain command, and (iii) the voltage drop across the diode, wherein the tank tuning voltage equals the VCO tuning voltage plus the voltage drop across the diode multiplied by the gain command reduced by the voltage drop across the diode to provide the tank tuning voltage with a temperature coefficient substantially equal to that of the VCO tuning voltage.

이 특허를 인용한 특허 (66)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Method and apparatus for tuning and aligning an FM receiver 원문보기

초록 ▼

대표청구항 ▼

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Method and apparatus for tuning and aligning an FM receiver 원문보기

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대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (66)

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