Patent EP0454460A2 successfully refreshed from Google Patents.
EP0454460A2
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Video signal recording/reproducing apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1991-04-25
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Granted: —
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Expires: 2011-04-25
Abstract
Abstract A video signal recording/reproducing apparatus which records pictures by compressing the video signal in multiple field units and reproduces the signal by the expansion process (1), and which continuously and repeatedly outputs each field of the reproduced television signal on the screen by use of field detecting unit (8) which operates to ensure that a reciprocal of a multiplication index of a desired reproducing speed is selected as a number of continuous reproduction of one field and also by use of charge-over unit (60, 61, 62) for changing over the reproduced signal in field units. <IMAGE>
Inventors
- 👤 Masakazu Nishino
- 👤 Chojuro Yamamitsu
- 👤 Akifumi Ide
- 👤 Akira Iketani
- 👤 Tatsuro Juri
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 18:53
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; H04N5/9262; H04N5/93; H04N5/937; H04N5/78; H04N5/782; H04N5/783
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A video signal recording/reproducing apparatus comprising: compression process means (1) for compressing the video signal in multiple field units; recording/reproducing means (2, 3) for recording the compressed signal in a recording medium and reproducing the recorded signal; expansion means (4) for expanding said reproduced signal in multiple field units; reproducing mode setting means (12) for setting a desired reproducing speed; recording medium transportation control means (5) for controlling a transportation speed of said recording medium according to said reproducing speed; synchronization detecting means (11) for obtaining a field signal by detecting a synchronization pattern from said reproduced signal; field detecting means (8) for finding a reciprocal of a reproducing speed multiplication factor with respect to normal speed and making a field period expressed by said reciprocal a continuous field period according to said reciprocal and a field signal obtained by said synchronization detecting means; and change-over means (60, 61) for continuously and repeatedly outputting on the screen individual fields of the video signal in multiple field units obtained by said expansion means for said continuous field period.
Claim 2
Dependent Claim
160 words
A video signal recording/reproducing apparatus comprising: compression process means (1) for compressing the video signal in multiple field units; recording/reproducing means (2, 3) for recording the compressed signal in a recording medium and reproducing the recorded signal; expansion means (4) for expanding the reproduced signal in said multiple field units; reproducing mode setting means (12) for setting a desired reproducing speed; recording medium transportation control means (5) for controlling a transportation speed of said recording medium according to said reproducing speed; synchronization detecting means (11) for obtaining a field signal by detecting a synchronization pattern from said reproduced signal; and change-over means (62) for capable of sequentially outputting signals in said multiple field units according to a field signal from said synchronization detecting means in normal reproduction, and also continuously and repeatedly outputting one field of signals out of one unit of said multiple field units until signals of the next unit of said multiple field units can be obtained.
References Cited (Backward Citations)
No citation records indexed.
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