JPS5619511A - Multichannel gain control system using dc gain control amplifier - Google Patents

Multichannel gain control system using dc gain control amplifier

Info

Publication number
JPS5619511A
JPS5619511A JP9451179A JP9451179A JPS5619511A JP S5619511 A JPS5619511 A JP S5619511A JP 9451179 A JP9451179 A JP 9451179A JP 9451179 A JP9451179 A JP 9451179A JP S5619511 A JPS5619511 A JP S5619511A
Authority
JP
Japan
Prior art keywords
gain control
gain
multichannel
adjustment
amplifier
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
JP9451179A
Other languages
Japanese (ja)
Inventor
Toshihiko Fujii
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 JP9451179A priority Critical patent/JPS5619511A/en
Publication of JPS5619511A publication Critical patent/JPS5619511A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

PURPOSE: To make simple and easy the multichannel gain control, by the concentrated control of each DC gain control amplifier for a number of read-in signal with the common DC gain control circuit connected via variable resistors.
CONSTITUTION: DC gain control amplifiers D-1, D-2... are connected via the common DC gain control circuit 2 and the variable resistors RV-1, RV-2.... At the readout of recording of NRZI, when the gain is adjusted via the resistors RV-1, RV-2..., adjustment is made at a bundle via the circuit 2 at the readout of the recording of a given rate such as PE and optimum gain is obtained for the signal read-in units U-1 and U-2. With this constitution, each recording readout different in the system, the gain adjustment of each amplifier is made unnecessary and the gain adjustment of multichannel can be made simply, easily and quickly with concentrated adjustment.
COPYRIGHT: (C)1981,JPO&Japio
JP9451179A 1979-07-25 1979-07-25 Multichannel gain control system using dc gain control amplifier Pending JPS5619511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9451179A JPS5619511A (en) 1979-07-25 1979-07-25 Multichannel gain control system using dc gain control amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9451179A JPS5619511A (en) 1979-07-25 1979-07-25 Multichannel gain control system using dc gain control amplifier

Publications (1)

Publication Number Publication Date
JPS5619511A true JPS5619511A (en) 1981-02-24

Family

ID=14112338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9451179A Pending JPS5619511A (en) 1979-07-25 1979-07-25 Multichannel gain control system using dc gain control amplifier

Country Status (1)

Country Link
JP (1) JPS5619511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6450281A (en) * 1987-08-21 1989-02-27 Teac Corp Magnetic reproducing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6450281A (en) * 1987-08-21 1989-02-27 Teac Corp Magnetic reproducing device

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