JPS57140049A - Time division multi-direction communication system - Google Patents

Time division multi-direction communication system

Info

Publication number
JPS57140049A
JPS57140049A JP2506381A JP2506381A JPS57140049A JP S57140049 A JPS57140049 A JP S57140049A JP 2506381 A JP2506381 A JP 2506381A JP 2506381 A JP2506381 A JP 2506381A JP S57140049 A JPS57140049 A JP S57140049A
Authority
JP
Japan
Prior art keywords
slave station
frequency
fsk signal
station
modulation carrier
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
JP2506381A
Other languages
English (en)
Japanese (ja)
Other versions
JPS632383B2 (enrdf_load_stackoverflow
Inventor
Susumu Sasaki
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 JP2506381A priority Critical patent/JPS57140049A/ja
Publication of JPS57140049A publication Critical patent/JPS57140049A/ja
Publication of JPS632383B2 publication Critical patent/JPS632383B2/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
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/16—Frequency regulation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0093—Intermittant signals
    • H04L2027/0095—Intermittant signals in a preamble or similar structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
JP2506381A 1981-02-23 1981-02-23 Time division multi-direction communication system Granted JPS57140049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2506381A JPS57140049A (en) 1981-02-23 1981-02-23 Time division multi-direction communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2506381A JPS57140049A (en) 1981-02-23 1981-02-23 Time division multi-direction communication system

Publications (2)

Publication Number Publication Date
JPS57140049A true JPS57140049A (en) 1982-08-30
JPS632383B2 JPS632383B2 (enrdf_load_stackoverflow) 1988-01-19

Family

ID=12155453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2506381A Granted JPS57140049A (en) 1981-02-23 1981-02-23 Time division multi-direction communication system

Country Status (1)

Country Link
JP (1) JPS57140049A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS632383B2 (enrdf_load_stackoverflow) 1988-01-19

Similar Documents

Publication Publication Date Title
JPS6471330A (en) Radio communication system with automatically selected transmission frequency
MY114196A (en) Communication system
IE45268L (en) Common channel duplex transmitter/receiver
GB1073568A (en) Multiplex pulse communication system
GB1358782A (en) Frequency division multiplex communication systems
GB1523787A (en) Digital mobile communication system and method
JPS57140049A (en) Time division multi-direction communication system
GB1499232A (en) Telephone set and system
JPS5710539A (en) Bidirectional signal transmitter of distribution line carrier system
JPS56161750A (en) Synchronizing system in telephone set
EP0380074A3 (en) Subscriber station of subscriber radio system
JPS57210743A (en) Tdma synchronizing system
JPS5314502A (en) Connection control system for radio call channel
JPS5624867A (en) Facsimile simultaneous transmission and reception system
JPS6460135A (en) Radiocommunication system
JPS5384515A (en) Multiplex communication system
JPS57142046A (en) Communicating system
JPS54146513A (en) Single frequency simultaneous transmission/reception system
JPS6417521A (en) Automatic frequency control system
FR2402371A1 (fr) Procede de synchronisation de stations emettrices fonctionnant en multiplex, en particulier pour la telecommande d'objets mobiles
JPS5773541A (en) Channel control system for time division multi-direction multiplex radio communicating device
YU133784A (en) Amplitude modulated transmitter with controlled carrier value
JPS57132444A (en) Carrier frequency controlling system for slave station applied to multidirection multiplex communication system
JPS54146514A (en) Radio communication system
JPS5758436A (en) Main oscillating system of pilot multiplying type carrier current