JPS55114054A - Automatic if gain control system of time-division multidirectional multiplex communication system - Google Patents

Automatic if gain control system of time-division multidirectional multiplex communication system

Info

Publication number
JPS55114054A
JPS55114054A JP2211579A JP2211579A JPS55114054A JP S55114054 A JPS55114054 A JP S55114054A JP 2211579 A JP2211579 A JP 2211579A JP 2211579 A JP2211579 A JP 2211579A JP S55114054 A JPS55114054 A JP S55114054A
Authority
JP
Japan
Prior art keywords
gain control
amplifier
gain
automatic
detector
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
JP2211579A
Other languages
Japanese (ja)
Inventor
Densuke Ootomo
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
Original Assignee
Japan Radio Co 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP2211579A priority Critical patent/JPS55114054A/en
Publication of JPS55114054A publication Critical patent/JPS55114054A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To exercise batch gain control over received signals, differing in incoming level, from subordinate stations by inputting input signals to a variable gain amplifier after delaying by a delay unit.
CONSTITUTION: By way of constant gain amplifier 6, detector 7 and integrator 8, an input signal is outputted as a gain signal to variable gain amplifier 4. Further, the input signal is delayed by delay unit 5 as long as the signal processing time of amplifier 6, detector 7 and integrator 8. As its input level increases, the output of detector 8 also increases to reduce the gain of amplifier 4. Therefore, batch gain control over received signals differing in incoming level can be exercised by inputting the input signal to variable gain amplifier 4 after delaying by the delay unit, so that automatic gain control can economically be exercised through the simple circuit.
COPYRIGHT: (C)1980,JPO&Japio
JP2211579A 1979-02-27 1979-02-27 Automatic if gain control system of time-division multidirectional multiplex communication system Pending JPS55114054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2211579A JPS55114054A (en) 1979-02-27 1979-02-27 Automatic if gain control system of time-division multidirectional multiplex communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2211579A JPS55114054A (en) 1979-02-27 1979-02-27 Automatic if gain control system of time-division multidirectional multiplex communication system

Publications (1)

Publication Number Publication Date
JPS55114054A true JPS55114054A (en) 1980-09-03

Family

ID=12073877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2211579A Pending JPS55114054A (en) 1979-02-27 1979-02-27 Automatic if gain control system of time-division multidirectional multiplex communication system

Country Status (1)

Country Link
JP (1) JPS55114054A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0256126A (en) * 1988-08-22 1990-02-26 Nippon Telegr & Teleph Corp <Ntt> Radio calling device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0256126A (en) * 1988-08-22 1990-02-26 Nippon Telegr & Teleph Corp <Ntt> Radio calling device

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