JPH0588024B2 - - Google Patents

Info

Publication number
JPH0588024B2
JPH0588024B2 JP57117990A JP11799082A JPH0588024B2 JP H0588024 B2 JPH0588024 B2 JP H0588024B2 JP 57117990 A JP57117990 A JP 57117990A JP 11799082 A JP11799082 A JP 11799082A JP H0588024 B2 JPH0588024 B2 JP H0588024B2
Authority
JP
Japan
Prior art keywords
frequency
signal
modulated
voltage
output
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 - Lifetime
Application number
JP57117990A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5910059A (ja
Inventor
Tokihiro Mishiro
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP57117990A priority Critical patent/JPS5910059A/ja
Priority to US06/510,182 priority patent/US4651104A/en
Priority to DE8383303972T priority patent/DE3380682D1/de
Priority to EP83303972A priority patent/EP0099702B1/en
Publication of JPS5910059A publication Critical patent/JPS5910059A/ja
Publication of JPH0588024B2 publication Critical patent/JPH0588024B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0028—Correction of carrier offset at passband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0055—Closed loops single phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops
    • H04L2027/0081—Switching between loops between loops of different bandwidths

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP57117990A 1982-07-07 1982-07-07 自動周波数制御方式 Granted JPS5910059A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57117990A JPS5910059A (ja) 1982-07-07 1982-07-07 自動周波数制御方式
US06/510,182 US4651104A (en) 1982-07-07 1983-07-01 Frequency converter with automatic frequency control
DE8383303972T DE3380682D1 (en) 1982-07-07 1983-07-07 A frequency converter
EP83303972A EP0099702B1 (en) 1982-07-07 1983-07-07 A frequency converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57117990A JPS5910059A (ja) 1982-07-07 1982-07-07 自動周波数制御方式

Publications (2)

Publication Number Publication Date
JPS5910059A JPS5910059A (ja) 1984-01-19
JPH0588024B2 true JPH0588024B2 (enrdf_load_stackoverflow) 1993-12-20

Family

ID=14725292

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57117990A Granted JPS5910059A (ja) 1982-07-07 1982-07-07 自動周波数制御方式

Country Status (1)

Country Link
JP (1) JPS5910059A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6130849A (ja) * 1984-07-24 1986-02-13 Victor Co Of Japan Ltd 時分割多重信号中の４相ｄｐｓｋ波の復調回路
US7468033B2 (en) 2004-09-08 2008-12-23 Medtronic Minimed, Inc. Blood contacting sensor

Also Published As

Publication number Publication date
JPS5910059A (ja) 1984-01-19

Similar Documents

Publication Publication Date Title
US4468792A (en) Method and apparatus for data transmission using chirped frequency-shift-keying modulation
US4122393A (en) Spread spectrum detector
US5524127A (en) Unique word detector and method for detecting a unique word within one of several windows offset in time
US5222106A (en) Interference detection and reduction
EP0701320B1 (en) Detector for digitally modulated signal
US6337855B1 (en) Method, transmitter and receiver for transmitting training signals in a TDMA transmission system
US4926440A (en) Spread-spectrum communication apparatus
EP0125805A2 (en) Bit error detection circuit for PSK-modulated carrier wave
US4656630A (en) Automatic gain control circuit
US4651104A (en) Frequency converter with automatic frequency control
EP0709993B1 (en) Phase demodulation method by measuring the time between zero-crossings
EP0065805A1 (en) Receiver for angle-modulated carrier signals
US4585998A (en) Method and device for coherent demodulation of a digitally modulated carrier
JPH0588024B2 (enrdf_load_stackoverflow)
US4250456A (en) Device for demodulating PSK-FM double modulated carrier signals
JPH0542863B2 (enrdf_load_stackoverflow)
EP0720325B1 (en) System for acquiring a desired carrier from an FDM signal
JPH0142528B2 (enrdf_load_stackoverflow)
EP0257584B1 (en) Carrier recovery circuitry immune to interburst frequency variations
EP0651519B1 (en) Interference detector
JPH08237169A (ja) プリアンブル同期方式
GB2044047A (en) Circuits for obtaining data signal element timings
JP3365783B2 (ja) バースト検出器
JPS59128853A (ja) プリアンブル検出器
JPS634982B2 (enrdf_load_stackoverflow)