CN1015854B - 自动中频正切锁定控制电路 - Google Patents

自动中频正切锁定控制电路

Info

Publication number
CN1015854B
CN1015854B CN88101130A CN88101130A CN1015854B CN 1015854 B CN1015854 B CN 1015854B CN 88101130 A CN88101130 A CN 88101130A CN 88101130 A CN88101130 A CN 88101130A CN 1015854 B CN1015854 B CN 1015854B
Authority
CN
China
Prior art keywords
signal
frequency
freuqncy
phase
cos
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CN88101130A
Other languages
English (en)
Chinese (zh)
Other versions
CN88101130A (zh
Inventor
劳伦斯·M·伊克伦德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of CN88101130A publication Critical patent/CN88101130A/zh
Publication of CN1015854B publication Critical patent/CN1015854B/zh
Expired legal-status Critical Current

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Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
    • H03J7/10—Modification of automatic frequency control sensitivity or linearising automatic frequency control operation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2209—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders
    • H03D1/2236—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders using a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
CN88101130A 1987-04-15 1988-03-05 自动中频正切锁定控制电路 Expired CN1015854B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/038,563 US4782532A (en) 1987-04-15 1987-04-15 Automatic IF tangent lock control circuit
US038.563 1987-04-15

Publications (2)

Publication Number Publication Date
CN88101130A CN88101130A (zh) 1988-10-26
CN1015854B true CN1015854B (zh) 1992-03-11

Family

ID=21900649

Family Applications (1)

Application Number Title Priority Date Filing Date
CN88101130A Expired CN1015854B (zh) 1987-04-15 1988-03-05 自动中频正切锁定控制电路

Country Status (11)

Country Link
US (1) US4782532A (OSRAM)
JP (1) JPS63263926A (OSRAM)
KR (1) KR960003836B1 (OSRAM)
CN (1) CN1015854B (OSRAM)
AU (1) AU594286B2 (OSRAM)
BR (1) BR8801268A (OSRAM)
CA (1) CA1296776C (OSRAM)
GB (1) GB2203908B (OSRAM)
HK (1) HK11094A (OSRAM)
IN (1) IN170411B (OSRAM)
MX (1) MX168451B (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222144A (en) * 1991-10-28 1993-06-22 Ford Motor Company Digital quadrature radio receiver with two-step processing
IL132161A (en) 1999-09-30 2002-09-12 Netmor Ltd Digital coherent envelope demodulation of fdma signals
EP2725712A1 (fr) 2012-10-26 2014-04-30 EM Microelectronic-Marin SA Système récepteur amélioré

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4583244A (en) * 1984-06-21 1986-04-15 Motorola, Inc. Automatic frequency control for local oscillator used with an AM stereo decoder
AU572077B2 (en) * 1985-02-01 1988-04-28 Nec Corporation Stripline diode mixer

Also Published As

Publication number Publication date
CA1296776C (en) 1992-03-03
KR880013332A (ko) 1988-11-30
JPS63263926A (ja) 1988-10-31
US4782532A (en) 1988-11-01
IN170411B (OSRAM) 1992-03-21
JPH0580177B2 (OSRAM) 1993-11-08
CN88101130A (zh) 1988-10-26
GB2203908A (en) 1988-10-26
HK11094A (en) 1994-02-09
BR8801268A (pt) 1988-10-25
MX168451B (es) 1993-05-25
AU594286B2 (en) 1990-03-01
AU1140688A (en) 1988-10-20
GB8803777D0 (en) 1988-03-16
GB2203908B (en) 1991-10-23
KR960003836B1 (ko) 1996-03-22

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C13 Decision
GR02 Examined patent application
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: PATENTEE; FROM: MOTOROLA INC. TO: MOTOROLA, INC.

CP01 Change in the name or title of a patent holder

Patentee after: Motorola Inc.

Patentee before: Motorola. Inc

C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee