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EP0471118A1
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A video signal digital recording and reproducing apparatus
Assignee: Panasonic Holdings Corp
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Filing: 1990-08-13
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Granted: —
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Expires: 2010-08-13
Abstract
Abstract A video signal digital recording and reproducing apparatus comprises a rearranging section for rearranging a sequence of signals on a rectangle by rectangle unit basis formed by sectioning a group of pixel data on a screen of a digital video signal, an encoding section for subjecting the signals in the rectangle units to bit rate reduction, a block forming section for gathering plural number of the coded rectangle units to constitute a block of signals, and a recording section for recording on a recording medium the block of signals. The rearranging section divides the screen into plural regions, takes out the rectangle units by a certain number in order from each region, and carries out rearrangement so that mutually corresponding rectangle units which are contained respectively in adjacent blocks on the recording medium are mutually adjacent on the screen. The recording section is constituted so that the blocks signals are recorded simultaneously in parallel on the recording medium by using plural channels. The rearranging section may have such constitution that the screen is divided into plural regions and the rectangle units are taken out by a certain number in order from each region, and rearrangement is carried out so that mutually corresponding rectangle units which are contained respectively in adjacent or neighboring blocks to be simultaneously recorded in parallel by the plural channels on the recording section are mutually adjacent on the screen.
Inventors
- 👤 Tatsuro Juri
- 👤 Masakazu Nishino
- 👤 Hideki Ohtaka
- 👤 Kouji Matsushita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 03:19
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/42; H04N19/436; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/926; H04N5/9261; H04N5/9264; H04N9/00; H04N9/79; H04N9/797; H04N9/7973; H04N9/80; H04N9/804; H04N9/8042; H04N9/8047; H04N9/87; H04N9/877; H04N5/78; H04N5/782; H04N5/783
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
146 words
A video signal digital recording and reproducing apparatus comprising: a rearranging means for rearranging a sequence of signals on a rectangle unit by rectangle unit basis formed by sectioning a group of pixel data on a screen of a digital video signal; an encoding means for subjecting the signals in the rectangle units to bit rate reduction; a block forming means for gathering plural number of the coded rectangle units to constitute a block of signals; and a recording means for recording on a recording medium the block of signals formed by the block forming means, wherein said rearranging means divides said screen into plural regions, takes out a certain number of rectangle units in order from each region, and carries out rearrangement so that mutually corresponding rectangle units which are contained respectively in adjacent blocks on said recording medium are mutually adjacent on the screen.
Claim 2
Dependent Claim
146 words
A video signal digital recording and reproducing apparatus comprising: a rearranging means for rearranging a sequence of signals on a rectangle unit by rectangle unit basis formed by sectioning a group of pixel data on a screen of a digital video signal; an encoding means for subjecting the signals in the rectangle units to bit rate reduction; a block forming means for gathering plural number of the coded rectangle units to constitute a block of signals; and a recording means for recording on a recording medium the block of signals formed by the block forming means, wherein said rearranging means divides said screen into plural regions, takes out a certain number of rectangle units in order from each region, and carries out rearrangement so that mutually corresponding rectangle units which are contained respectively in adjacent blocks on said recording medium are mutually adjacent on the screen.
Claim 3
Dependent Claim
59 words
A video signal digital recording and reproducing apparatus according to Claim 1, further comprising: a detecting means for detecting the digital signals recorded on said recording medium; a decoding means for decoding the signals coded by the coding means; and an inverse rearranging means for rearranging the order of the decoded signals inversely to that by said rearranging means.
Claim 4
Dependent Claim
61 words
A video signal digital recording and reproducing apparatus according to Claim 1, wherein the rearranging means carries out rearrangement so that the rectangle units of luminance signals which are on the same position as the rectangle units of chrominance difference signals on the screen are contained in the same blocks as those of the rectangle units of the chrominance difference signals.
Claim 5
Dependent Claim
47 words
A video signal digital recording and reproducing apparatus according to Claim 1, wherein the rearranging means carries out the rearrangement so that the rectangle units of two kinds of chrominance difference signals which are on the same position on the screen are contained in the same block.
Claim 6
Dependent Claim
160 words
A video signal digital recording and reproducing apparatus comprising: a rearranging means for rearranging a sequence of signals on a rectangle unit by rectangle unit basis formed by sectioning a group of pixel data on a screen of digital video signals; an encoding means for subjecting the signals in the rectangle units to bit rate reduction; a block forming means for gathering plural number of the coded rectangle units to constitute a block of signals; and a recording means for recording the block of signals in parallel simultaneously on a recording medium by using a plurality of channels, wherein said rearranging means divides said screen into plural regions, takes out a certain number of rectangle units in order from each region, and carries out rearrangement so that mutually corresponding rectangle units which are contained respectively in adjacent or neighboring blocks which are recorded in parallel simultaneously by the plural channels on said recording medium are mutually adjacent on the screen.
Claim 7
Dependent Claim
160 words
A video signal digital recording and reproducing apparatus comprising: a rearranging means for rearranging a sequence of signals on a rectangle unit by rectangle unit basis formed by sectioning a group of pixel data on a screen of digital video signals; an encoding means for subjecting the signals in the rectangle units to bit rate reduction; a block forming means for gathering plural number of the coded rectangle units to constitute a block of signals; and a recording means for recording the block of signals in parallel simultaneously on a recording medium by using a plurality of channels, wherein said rearranging means divides said screen into plural regions, takes out a certain number of rectangle units in order from each region, and carries out rearrangement so that mutually corresponding rectangle units which are contained respectively in adjacent or neighboring blocks which are recorded in parallel simultaneously by the plural channels on said recording medium are mutually adjacent on the screen.
Claim 8
Dependent Claim
73 words
A video signal digital recording and reproducing apparatus according to Claim 5, which further comprises: a detecting means for detecting the digital signals which are recorded on said recording medium simultaneously in the plural channels in parallel; a decoding means for decoding the signals encoded by the encoding means; and an inverse rearranging means for rearranging the order of the decoded signals of rectangle units inversely to the rearrangment by said rearranging means.
Claim 9
Dependent Claim
73 words
A video signal digital recording and reproducing apparatus according to Claim 5, wherein the rearranging means carries out the rearrangement so that the rectangle units of the luminance signals which are on the same position as the rectangle units of chrominance difference signal on the screen and the rectangle units of the chrominance difference signal are contained in the adjacent or neighboring blocks which are recorded in parallel simultaneously by the plural channels.
Claim 10
Dependent Claim
59 words
A video signal digital recording and reproducing apparatus according to Claim 5, wherein the rearranging means carries out the rearrangement so that the rectangle units of two kinds of the chrominance difference signals which are on the same position on the screen are contained in adjacent or neighboring blocks which are recorded in parallel simultaneously by the plural channels.
References Cited (Backward Citations)
EP0275026A2
Cited
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