EP0162503A2
Expired / Lapsed
EP
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Video signal processing arrangement
Assignee: Philips Electronics UK Ltd
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Filing: 1985-04-18
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Granted: —
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Expires: 2005-04-18
Abstract
Abstract A video signal processing arrangementfortelevision signals encoded in digital form comprises means (11) for compressing and or expanding the size of the television picture represented by the video signal and means (6) for rotating the television picture represented by the video signal. The rotating means (6) is separate from the compressing and/or expanding means (11) and is switchable (2,6,5,8) between a position prior to the compressing and/or expanding means (11) in the video signal processing chain and a position subsequent to the compressing and/or expanding means (11). An arrangement having two separate video signal paths which are later combined to produce a composite picture is also described in which the rotating means can also be positioned after the combining means as well as before or after the compressing and/or expanding means in either path.
Inventors
- 👤 Anthony John C/O Pye Tvt Limited Field
- 👤 Atma C/O Pye Tvt Limited Heerah
- 👤 Thomas Colin C/O Pye Tvt Limited Mackereth
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 10:42
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; H04N7/0117; H04N7/0122; G; G06; G06T; G06T3/00; G06T3/40; H04N5/00; H04N5/222; H04N5/262; H04N5/2628
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
A video signal processing arrangement for television signals encoded in digital form comprising means for compressing and/or expanding the size of the television picture represented by the video signal and means for rotating the television picture represented by the video signal characterised in that the rotating means is separate from the compressing and/or expanding means and that the rotating means is switchable between a position prior to the compressing and/or expanding means in the video signal processing chain and a position subsequent to the compressing and/or expanding means.
Claim 2
Dependent Claim
88 words
A video signal processing arrangement for television signals encoded in digital form comprising means for compressing and/or expanding the size of the television picture represented by the video signal and means for rotating the television picture represented by the video signal characterised in that the rotating means is separate from the compressing and/or expanding means and that the rotating means is switchable between a position prior to the compressing and/or expanding means in the video signal processing chain and a position subsequent to the compressing and/or expanding means.
Claim 3
Dependent Claim
138 words
A video signal processing arrangement for television signals encoded in digital form comprising first and second video signal inputs, a video signal output, first means for compressing and/or expanding the size of a television picture represented by the first video signal, second means for compressing and/or expanding the size of a television picture represented by the second video signal, means for combining the outputs of the first and second compressing and/or expanding means, and means for rotating the television picture represented by a video signal characterised in that the rotating means is separate from the first and second compressing and/or expanding means and that the position of the rotating means is switchable between a position prior to the first or second compressing and/or expanding means in the signal processing chain and a position subsequent to the combining means.
Claim 4
Dependent Claim
138 words
A video signal processing arrangement for television signals encoded in digital form comprising first and second video signal inputs, a video signal output, first means for compressing and/or expanding the size of a television picture represented by the first video signal, second means for compressing and/or expanding the size of a television picture represented by the second video signal, means for combining the outputs of the first and second compressing and/or expanding means, and means for rotating the television picture represented by a video signal characterised in that the rotating means is separate from the first and second compressing and/or expanding means and that the position of the rotating means is switchable between a position prior to the first or second compressing and/or expanding means in the signal processing chain and a position subsequent to the combining means.
Claim 5
Dependent Claim
35 words
A video signal processing arrangement as claimed in Claim 2, characterised in that the rotating means is additionally switchable to a position between the first or second compressing and/or expanding means and the combining means.
Claim 6
Dependent Claim
49 words
A video signal processing arrangement as claimed in any preceding claim comprising means for switching the position of the rotating means characterised in that the switching means is arranged to maintain a by-pass path around the rotator for a period equal to the signal delay introduced by the rotator.
References Cited (Backward Citations)
No citation records indexed.
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