JPS5589909A - Magnetic recording and reproducing unit - Google Patents
Magnetic recording and reproducing unitInfo
- Publication number
- JPS5589909A JPS5589909A JP16435178A JP16435178A JPS5589909A JP S5589909 A JPS5589909 A JP S5589909A JP 16435178 A JP16435178 A JP 16435178A JP 16435178 A JP16435178 A JP 16435178A JP S5589909 A JPS5589909 A JP S5589909A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- deterioration
- noise
- magnetic recording
- reproducing unit
- 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
- Television Signal Processing For Recording (AREA)
Abstract
PURPOSE: To prevent the deterioration in SN ratio of video signal due to slide noise, by inserting the LPF having the cut-off frequency in specific number of times the carrier frequency between the reproduced amplifier and the limiter.
CONSTITUTION: In the magnetic recording and reproducing unit recording signal in frequency or phase modulation, the level of noise component of slide noise is eminent at the frequency twice or more the carrier frequency fc and this is the cause of the deterioration of video S/N. Accordingly, by providing the LPF 34 rejecting the noise component of outside the signal transmission band, i.e., 2fc±10% or more between the reproduced amplifier 7 and the limiter 9, the effect of the slide noise can remarkably be suppressed to prevent the deterioration of S/N of video signal and to obtain excellent picture.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16435178A JPS5589909A (en) | 1978-12-27 | 1978-12-27 | Magnetic recording and reproducing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16435178A JPS5589909A (en) | 1978-12-27 | 1978-12-27 | Magnetic recording and reproducing unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5589909A true JPS5589909A (en) | 1980-07-08 |
JPS6120927B2 JPS6120927B2 (en) | 1986-05-24 |
Family
ID=15791501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16435178A Granted JPS5589909A (en) | 1978-12-27 | 1978-12-27 | Magnetic recording and reproducing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5589909A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59118112U (en) * | 1983-01-28 | 1984-08-09 | アルパイン株式会社 | magnetic recording and reproducing device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4991626A (en) * | 1972-12-31 | 1974-09-02 | ||
JPS5210113A (en) * | 1976-01-29 | 1977-01-26 | Victor Co Of Japan Ltd | Amplitude limiter |
JPS533730A (en) * | 1976-06-30 | 1978-01-13 | Matsushita Electric Ind Co Ltd | Recording and reproducing device of color television signal |
JPS53108915U (en) * | 1977-02-03 | 1978-08-31 | ||
JPS53141606A (en) * | 1977-05-16 | 1978-12-09 | Sony Corp | Reproducer |
JPS5584006A (en) * | 1978-12-18 | 1980-06-24 | Sony Corp | Recording method for information signal |
-
1978
- 1978-12-27 JP JP16435178A patent/JPS5589909A/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4991626A (en) * | 1972-12-31 | 1974-09-02 | ||
JPS5210113A (en) * | 1976-01-29 | 1977-01-26 | Victor Co Of Japan Ltd | Amplitude limiter |
JPS533730A (en) * | 1976-06-30 | 1978-01-13 | Matsushita Electric Ind Co Ltd | Recording and reproducing device of color television signal |
JPS53108915U (en) * | 1977-02-03 | 1978-08-31 | ||
JPS53141606A (en) * | 1977-05-16 | 1978-12-09 | Sony Corp | Reproducer |
JPS5584006A (en) * | 1978-12-18 | 1980-06-24 | Sony Corp | Recording method for information signal |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59118112U (en) * | 1983-01-28 | 1984-08-09 | アルパイン株式会社 | magnetic recording and reproducing device |
Also Published As
Publication number | Publication date |
---|---|
JPS6120927B2 (en) | 1986-05-24 |
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