KR970007361B1 - 주파수 제어 시스템 - Google Patents

주파수 제어 시스템 Download PDF

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Publication number
KR970007361B1
KR970007361B1 KR1019920702089A KR920702089A KR970007361B1 KR 970007361 B1 KR970007361 B1 KR 970007361B1 KR 1019920702089 A KR1019920702089 A KR 1019920702089A KR 920702089 A KR920702089 A KR 920702089A KR 970007361 B1 KR970007361 B1 KR 970007361B1
Authority
KR
South Korea
Prior art keywords
signal
frequency
control system
oscillator
channel
Prior art date
Application number
KR1019920702089A
Other languages
English (en)
Korean (ko)
Other versions
KR920704447A (ko
Inventor
사네키 데오도르 티
스몰우드 랄프 디
Original Assignee
모토로라 인코포레이티드
죤 에이취. 무어
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.)
Filing date
Publication date
Application filed by 모토로라 인코포레이티드, 죤 에이취. 무어 filed Critical 모토로라 인코포레이티드
Publication of KR920704447A publication Critical patent/KR920704447A/ko
Application granted granted Critical
Publication of KR970007361B1 publication Critical patent/KR970007361B1/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
    • H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Superheterodyne Receivers (AREA)
KR1019920702089A 1990-12-31 1991-12-26 주파수 제어 시스템 KR970007361B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US63631190A 1990-12-31 1990-12-31
US636,311 1990-12-31
PCT/US1991/009674 WO1992012578A1 (fr) 1990-12-31 1991-12-26 Systeme de commande de frequence

Publications (2)

Publication Number Publication Date
KR920704447A KR920704447A (ko) 1992-12-19
KR970007361B1 true KR970007361B1 (ko) 1997-05-07

Family

ID=24551346

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920702089A KR970007361B1 (ko) 1990-12-31 1991-12-26 주파수 제어 시스템

Country Status (6)

Country Link
JP (1) JPH05505088A (fr)
KR (1) KR970007361B1 (fr)
CA (1) CA2073341C (fr)
GB (1) GB2258961B (fr)
MX (1) MX9102892A (fr)
WO (1) WO1992012578A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5280644A (en) * 1992-12-22 1994-01-18 Motorola, Inc. Frequency control circuit, and associated method, for a receiver operative to receive signals-transmitted thereto in intermittent bursts
KR100804843B1 (ko) * 2005-04-22 2008-02-20 헬쓰 앤드 라이프 컴퍼니 리미티드 무선 전자 의료 장치의 주파수 채널 변경 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662269A (en) * 1969-04-28 1972-05-09 Us Navy Remote drift rate compensator for frequency standards
US4618996A (en) * 1984-04-24 1986-10-21 Avnet, Inc. Dual pilot phase lock loop for radio frequency transmission
US4703520A (en) * 1986-10-31 1987-10-27 Motorola, Inc. Radio transceiver having an adaptive reference oscillator
US5042082A (en) * 1989-06-26 1991-08-20 Telefonaktiebolaget L. M. Ericsson Mobile assisted handoff

Also Published As

Publication number Publication date
GB2258961A (en) 1993-02-24
CA2073341C (fr) 1996-06-25
WO1992012578A1 (fr) 1992-07-23
GB2258961B (en) 1995-03-08
GB9218094D0 (en) 1992-11-04
JPH05505088A (ja) 1993-07-29
KR920704447A (ko) 1992-12-19
MX9102892A (es) 1992-06-01

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