JPS5265645A - Noise reduction device - Google Patents
Noise reduction deviceInfo
- 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
Links
Landscapes
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5717241A (en) * | 1980-07-04 | 1982-01-28 | Hitachi Ltd | Dynamic emphasis circuit |
-
1975
- 1975-11-28 JP JP50141562A patent/JPS5942494B2/en not_active Expired
Cited By (2)
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 |
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