JPS645176A - Video signal recording and reproducing device - Google Patents
Video signal recording and reproducing deviceInfo
- Publication number
- JPS645176A JPS645176A JP62160347A JP16034787A JPS645176A JP S645176 A JPS645176 A JP S645176A JP 62160347 A JP62160347 A JP 62160347A JP 16034787 A JP16034787 A JP 16034787A JP S645176 A JPS645176 A JP S645176A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- variable
- video signal
- recording
- reproducing device
- 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
Abstract
PURPOSE:To eliminate a decrease in S/N ratio and a fixed noise band by controlling the traveling speed of a magnetic tape in variable speed reproduction to speed of specific times as fast as in recording. CONSTITUTION:Envelope detecting circuits 7a and 7b fetch the envelope of a reproducing FM signal and comparators 8a and 8b compare the outputs of the envelope detecting circuits 7a and 7b with specific levels, are provided. Then a traveling control circuit 13 controls the traveling speed of the magnetic tape in variable-speed reproduction to N+1/L times(N:0, + or -1, + or -2,...) as fast as in recording, where L(L=1) is the number of channels. Consequently, a high speed reproducing image is obtained by using a field memory 6 and excellent variable-speed reproduction which is free from a decrease in S/N ratio and a fixed noise band is performed.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160347A JP2804757B2 (en) | 1987-06-26 | 1987-06-26 | Video signal recording and playback device |
CA000550118A CA1316593C (en) | 1986-10-28 | 1987-10-23 | Video recorder with noise-free high-speed playback |
DE19873737054 DE3737054C3 (en) | 1986-10-28 | 1987-10-28 | Video signal recording / playback device |
NL8702558A NL194878C (en) | 1986-10-28 | 1987-10-28 | Video signal recording and reproducing device. |
US07/816,844 US5214515A (en) | 1986-10-28 | 1991-12-31 | Video signal recording/reproducing apparatus |
US08/024,488 US5339165A (en) | 1986-10-28 | 1993-03-01 | Video signal recording/reproducing apparatus |
US08/273,921 US5446552A (en) | 1986-10-28 | 1994-07-12 | Video signal recording/reproducing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62160347A JP2804757B2 (en) | 1987-06-26 | 1987-06-26 | Video signal recording and playback device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS645176A true JPS645176A (en) | 1989-01-10 |
JP2804757B2 JP2804757B2 (en) | 1998-09-30 |
Family
ID=15713019
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62160347A Expired - Fee Related JP2804757B2 (en) | 1986-10-28 | 1987-06-26 | Video signal recording and playback device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2804757B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0451361A (en) * | 1990-06-19 | 1992-02-19 | Sanyo Electric Co Ltd | Document filing device |
US5563716A (en) * | 1994-01-24 | 1996-10-08 | Victor Company Of Japan, Ltd. | Video signal reproducing method and apparatus |
US6595893B1 (en) | 1999-03-26 | 2003-07-22 | Teijin Seiki Co., Ltd. | Freeing mechanism for motorized gear reducer |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62190981A (en) * | 1986-02-18 | 1987-08-21 | Matsushita Electric Ind Co Ltd | Video signal recording method and recording and reproducing device |
-
1987
- 1987-06-26 JP JP62160347A patent/JP2804757B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62190981A (en) * | 1986-02-18 | 1987-08-21 | Matsushita Electric Ind Co Ltd | Video signal recording method and recording and reproducing device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0451361A (en) * | 1990-06-19 | 1992-02-19 | Sanyo Electric Co Ltd | Document filing device |
US5563716A (en) * | 1994-01-24 | 1996-10-08 | Victor Company Of Japan, Ltd. | Video signal reproducing method and apparatus |
US6595893B1 (en) | 1999-03-26 | 2003-07-22 | Teijin Seiki Co., Ltd. | Freeing mechanism for motorized gear reducer |
Also Published As
Publication number | Publication date |
---|---|
JP2804757B2 (en) | 1998-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |