EP0473416A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Video signal reproducing apparatus

Assignee: Sony Corp

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Filing: 1991-08-28

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Granted: —

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Expires: 2011-08-28

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Abstract

Abstract A video signal reproducing apparatus, for fast playback of a recording medium (T) where a shuffled video signal of one field is recorded on a plurality of tracks such that mutually adjacent image lines are positioned on different tracks, comprises a playback head (10) for playing back the recording medium (T) at a high (N + 1/2)-fold speed (where N is an integer) compared with a standard speed, a memory (14, 16) for storing the reproduced video signal, a detector (18) for detecting a noise bar to inhibit the signal writing in the memory (14, 16) at the time of a noise bar, and a reader (17) for reading the stored video signal from the memory (14, 16) while deshuffling the video signal as in the standard-speed playback mode. <IMAGE>

Inventors

👤 Hajime c/o Patents Division Nishimura

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-01 20:16

CPC Classifications

G; G11; G11B; G11B5/00; G11B5/02; H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/93; H04N5/937

Claims Analysis

Total Claims: 3

Claim 1

Independent Claim 160 words

A video signal reproducing apparatus for fast playback of a recording medium (T) where a video signal of one field is recorded on a plurality of tracks after being shuffled in such a manner that mutually adjacent lines on an image are positioned on different tracks, the apparatus comprising: a playback means (10) for fast playing back said recording medium (T) at a high (N + 1/2)-fold speed (where N is an integer) in comparison with a standard speed; a memory means (14, 16) for storing the video signal reproduced by said playback means (10); a detector means (18) for detecting a noise bar in a manner to inhibit the signal writing in said memory means (14, 16) at the timing of generation of such noise bar; and a reader means (17) for reading the stored video signal from said memory means (14, 16) while deshuffling the video signal by the same rule as that in the standard-speed playback mode.

Claim 2

Dependent Claim 143 words

A video signal reproducing apparatus for fast playback of a recording medium (T) where a video signal is recorded, the apparatus comprising: a playback means (10) for fast playing back said recording medium (T) at a high (N + 1/2)-fold speed (where N is an integer) in comparison with a standard speed; a memory means (14, 16) for storing the video signal reproduced by said playback means (10); a detector means (18) for detecting a noise bar in a manner to inhibit the signal writing in said memory means (14, 16) at the timing of generation of such noise bar; and a control means (17) for controlling the operation of writing the signal in or reading out the signal from said memory means (14, 16) in such a manner that a plurality of lines in each field are composed of the same lines.

Claim 3

Dependent Claim 37 words

Apparatus according to claim 1 or claim 2 wherein said playback means (10) includes a rotary drum with a plurality of magnetic heads having mutually different azimuths, and said recording medium (T) is a magnetic tape (T).

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