JPS5265645A - Noise reduction device - Google Patents

Noise reduction device

Info

Publication number
JPS5265645A
JPS5265645A JP50141562A JP14156275A JPS5265645A JP S5265645 A JPS5265645 A JP S5265645A JP 50141562 A JP50141562 A JP 50141562A JP 14156275 A JP14156275 A JP 14156275A JP S5265645 A JPS5265645 A JP S5265645A
Authority
JP
Japan
Prior art keywords
noise reduction
reduction device
reapir
productions
slight
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
JP50141562A
Other languages
Japanese (ja)
Other versions
JPS5942494B2 (en
Inventor
Masayuki Katakura
Hisashi Yamada
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP50141562A priority Critical patent/JPS5942494B2/en
Publication of JPS5265645A publication Critical patent/JPS5265645A/en
Publication of JPS5942494B2 publication Critical patent/JPS5942494B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To make possible to combine and to use various kinds of productions with a help of slight reapir by setting a high-pass filter and a voltage control variable gain circuit to dbx noise reduction device of the recording or-reproducing device and by making the device to have the same effect as Dolby noise reduction device.
COPYRIGHT: (C)1977,JPO&Japio
JP50141562A 1975-11-28 1975-11-28 noise reduction couch Expired JPS5942494B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50141562A JPS5942494B2 (en) 1975-11-28 1975-11-28 noise reduction couch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50141562A JPS5942494B2 (en) 1975-11-28 1975-11-28 noise reduction couch

Publications (2)

Publication Number Publication Date
JPS5265645A true JPS5265645A (en) 1977-05-31
JPS5942494B2 JPS5942494B2 (en) 1984-10-15

Family

ID=15294846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50141562A Expired JPS5942494B2 (en) 1975-11-28 1975-11-28 noise reduction couch

Country Status (1)

Country Link
JP (1) JPS5942494B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717241A (en) * 1980-07-04 1982-01-28 Hitachi Ltd Dynamic emphasis circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5717241A (en) * 1980-07-04 1982-01-28 Hitachi Ltd Dynamic emphasis circuit
JPH0132566B2 (en) * 1980-07-04 1989-07-06 Hitachi Ltd

Also Published As

Publication number Publication date
JPS5942494B2 (en) 1984-10-15

Similar Documents

Publication Publication Date Title
JPS5265645A (en) Noise reduction device
JPS51130146A (en) Dc control type output level adjustment circuit
JPS51123080A (en) Variable capacitance element
JPS5240955A (en) Timer circuit
JPS5218057A (en) Method of treating drainage
JPS51126020A (en) Micro program control equipment
JPS5212560A (en) Electronic beam probe control device
JPS52112262A (en) Frequency synthesizer
JPS51118541A (en) An assembly toy
JPS52104019A (en) Ghost suppresser
JPS5327350A (en) Sound volume adjuster
JPS51126820A (en) An electronic instrument
JPS52139349A (en) Variable delay circuit
JPS52104840A (en) Variable equalizer
JPS51131153A (en) Vertical blind
JPS5311023A (en) Auto fading device
JPS5287957A (en) Gain control circuit
JPS51114055A (en) Variable gain dc amplifier circuit
JPS527069A (en) Porous body
JPS51134161A (en) Meter circuit
JPS5233419A (en) Agc circuit
JPS536552A (en) Variable gain amplifier
JPS5292453A (en) Variable equalizer
JPS5212506A (en) Element piece editing type sound synthesizing unit
JPS53148260A (en) Gain control circuit