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JPS56136055A - Agc system of time-division multidirectional communication - Google Patents

Agc system of time-division multidirectional communication

Info

Publication number
JPS56136055A
JPS56136055A JP3853680A JP3853680A JPS56136055A JP S56136055 A JPS56136055 A JP S56136055A JP 3853680 A JP3853680 A JP 3853680A JP 3853680 A JP3853680 A JP 3853680A JP S56136055 A JPS56136055 A JP S56136055A
Authority
JP
Japan
Prior art keywords
level
circuit
input signal
distributor
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.)
Pending
Application number
JP3853680A
Other languages
Japanese (ja)
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 JP3853680A priority Critical patent/JPS56136055A/en
Publication of JPS56136055A publication Critical patent/JPS56136055A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE:To operate an AGC circuit without lowering information transmission efficiency by applying part of a distributed input signal to a delay circuit, by detecting the input level of the other distributed outputs, and by controlling the delay output on the basis of the detected level. CONSTITUTION:The AGC circuit of a communication system which forms a multidirectional communication network, between subordinate stations and one master station and permits each subordinate station to transmit a signal to the master station in time-division mode is provided with distributor 10 distributing an input signal to several parts. Part of the distributed input signal of distributor 10 is delayed at delay circuit 11 by a certain time (required to regulate level detection) and the delay output is applied to high-speed gain variable amplifier 15. Then, the output of distributor 10 is applied to level detecting circuit 12 to detect the level of the input signal and the detected level value is stored in level memory circuit 13; and a signal output indication from memory control part 14 is supplied to this circuit 13, whose level value is supplied to amplifier 15, so that gains to burst signals, differing in level, from respective subordinate stations is controlled.
JP3853680A 1980-03-26 1980-03-26 Agc system of time-division multidirectional communication Pending JPS56136055A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3853680A JPS56136055A (en) 1980-03-26 1980-03-26 Agc system of time-division multidirectional communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3853680A JPS56136055A (en) 1980-03-26 1980-03-26 Agc system of time-division multidirectional communication

Publications (1)

Publication Number Publication Date
JPS56136055A true JPS56136055A (en) 1981-10-23

Family

ID=12527998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3853680A Pending JPS56136055A (en) 1980-03-26 1980-03-26 Agc system of time-division multidirectional communication

Country Status (1)

Country Link
JP (1) JPS56136055A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63274205A (en) * 1987-05-06 1988-11-11 Matsushita Electric Ind Co Ltd Automatic gain adjusting device
JPH01288118A (en) * 1988-05-16 1989-11-20 Nippon Telegr & Teleph Corp <Ntt> Adjusting circuit for level corresponding to burst

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63274205A (en) * 1987-05-06 1988-11-11 Matsushita Electric Ind Co Ltd Automatic gain adjusting device
JPH01288118A (en) * 1988-05-16 1989-11-20 Nippon Telegr & Teleph Corp <Ntt> Adjusting circuit for level corresponding to burst

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