JPS549511A - Digital gain control system using read only memory - Google Patents

Digital gain control system using read only memory

Info

Publication number
JPS549511A
JPS549511A JP7533177A JP7533177A JPS549511A JP S549511 A JPS549511 A JP S549511A JP 7533177 A JP7533177 A JP 7533177A JP 7533177 A JP7533177 A JP 7533177A JP S549511 A JPS549511 A JP S549511A
Authority
JP
Japan
Prior art keywords
read
memory
control system
gain control
digital gain
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
JP7533177A
Other languages
Japanese (ja)
Inventor
Shunichi Naito
Takuto Kojima
Takashi Tabu
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 JP7533177A priority Critical patent/JPS549511A/en
Publication of JPS549511A publication Critical patent/JPS549511A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Abstract

PURPOSE:To make the gain change easily and to elevate the reliability by controlling the gain in the digital area of the telephone exchange.
JP7533177A 1977-06-24 1977-06-24 Digital gain control system using read only memory Pending JPS549511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7533177A JPS549511A (en) 1977-06-24 1977-06-24 Digital gain control system using read only memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7533177A JPS549511A (en) 1977-06-24 1977-06-24 Digital gain control system using read only memory

Publications (1)

Publication Number Publication Date
JPS549511A true JPS549511A (en) 1979-01-24

Family

ID=13573159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7533177A Pending JPS549511A (en) 1977-06-24 1977-06-24 Digital gain control system using read only memory

Country Status (1)

Country Link
JP (1) JPS549511A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120295A (en) * 1979-02-27 1980-09-16 Northern Telecom Ltd Pcm*pam converter circuit having signal level change of pcm portion circuit
JPS5657375A (en) * 1979-10-15 1981-05-19 Fujitsu Ltd Signal control system
JPS5719449U (en) * 1980-07-07 1982-02-01
JPS59210760A (en) * 1983-03-01 1984-11-29 インタ−ナシヨナル・スタンダ−ド・エレクトリツク・コ−ポレイシヨン Hand-free telephone system
JPS62188892U (en) * 1987-04-23 1987-12-01
JPH0396189A (en) * 1989-09-08 1991-04-22 Nitsuko Corp Digital exchange

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120295A (en) * 1979-02-27 1980-09-16 Northern Telecom Ltd Pcm*pam converter circuit having signal level change of pcm portion circuit
JPS5657375A (en) * 1979-10-15 1981-05-19 Fujitsu Ltd Signal control system
JPS5719449U (en) * 1980-07-07 1982-02-01
JPS59210760A (en) * 1983-03-01 1984-11-29 インタ−ナシヨナル・スタンダ−ド・エレクトリツク・コ−ポレイシヨン Hand-free telephone system
JPS62188892U (en) * 1987-04-23 1987-12-01
JPH0533096Y2 (en) * 1987-04-23 1993-08-24
JPH0396189A (en) * 1989-09-08 1991-04-22 Nitsuko Corp Digital exchange

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