JPS5394715A - Afc system employing modulated wave - Google Patents

Afc system employing modulated wave

Info

Publication number
JPS5394715A
JPS5394715A JP3224776A JP3224776A JPS5394715A JP S5394715 A JPS5394715 A JP S5394715A JP 3224776 A JP3224776 A JP 3224776A JP 3224776 A JP3224776 A JP 3224776A JP S5394715 A JPS5394715 A JP S5394715A
Authority
JP
Japan
Prior art keywords
system employing
modulated wave
afc system
afc
employing modulated
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.)
Granted
Application number
JP3224776A
Other languages
Japanese (ja)
Other versions
JPS606137B2 (en
Inventor
Noriji Kaieda
Masatake Satou
Takanari Ishihara
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.)
Japan Radio Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Japan Radio Co Ltd
Nippon Telegraph and Telephone Corp
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 Japan Radio Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Japan Radio Co Ltd
Priority to JP3224776A priority Critical patent/JPS606137B2/en
Publication of JPS5394715A publication Critical patent/JPS5394715A/en
Publication of JPS606137B2 publication Critical patent/JPS606137B2/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03JTUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02Automatic frequency control

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

PURPOSE:To prevent AFC from operating by disturbing signals, by transmitting the signal at the transmission side after modulating it by a known signal for AFC and by detecting this received signal which is used for operating AFC.
JP3224776A 1976-03-24 1976-03-24 AFC method using modulated waves Expired JPS606137B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3224776A JPS606137B2 (en) 1976-03-24 1976-03-24 AFC method using modulated waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3224776A JPS606137B2 (en) 1976-03-24 1976-03-24 AFC method using modulated waves

Publications (2)

Publication Number Publication Date
JPS5394715A true JPS5394715A (en) 1978-08-19
JPS606137B2 JPS606137B2 (en) 1985-02-15

Family

ID=12353665

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3224776A Expired JPS606137B2 (en) 1976-03-24 1976-03-24 AFC method using modulated waves

Country Status (1)

Country Link
JP (1) JPS606137B2 (en)

Also Published As

Publication number Publication date
JPS606137B2 (en) 1985-02-15

Similar Documents

Publication Publication Date Title
JPS5222866A (en) Demodulation system for angle modulated signal wave
JPS5394715A (en) Afc system employing modulated wave
JPS53131716A (en) Digital signal transmission system
JPS5372412A (en) Signal transmission system
JPS5252314A (en) Am signal piling pcm-im communication system
JPS5365612A (en) Parallel operation transmitter
JPS52110514A (en) Signal pressure transmission system by am-pm modulation
JPS535512A (en) Facsimile transmission system
JPS543406A (en) Data receiving system
JPS5344789A (en) Transmitter and receiver
JPS5345911A (en) Timing signal extraction circuit
JPS5345913A (en) Timing signal extraction circuit
JPS5389307A (en) Test system for communicating line system
JPS5393718A (en) Interference detecting system for multi-phase modulation same frequencyband polarized wave sharing communication
JPS5365007A (en) Transmission system for intermittent signal
JPS52136546A (en) Automatic power control system
JPS545693A (en) Information communication system
JPS5333010A (en) Trouble point detecting system of communication transmission line
JPS5295913A (en) Pilot alarm method
NL7801649A (en) Data transmission system with measured values modulating IR beam - has receiver with two sensitive elements to distinguish between information and interference signals
JPS5362411A (en) Data transmitter
JPS5324707A (en) Signal transmitter
JPS5344787A (en) Transmitter and receiver
JPS54918A (en) Facsimile transmission system
JPS53106108A (en) Signal transmitting circuit