Image processing apparatus which records images in a compressed state and outputs compressed images in an expanded state
First Claim
1. An image processing apparatus which records onto a recording medium in a compressed state a plurality of images periodically input and periodically outputs a plurality of compressed images reproduced from said recording medium in an expanded state, comprising:
- a plurality of codecs each of which executes an image compression process and an image expansion process;
a compression instructor for instructing at least one codec in art available state out of said plurality of codecs to execute the image compression process;
an expansion instructor for instructing at least one codec in the available state out of said plurality of codecs to execute the image expansion process;
a determiner for determining whether or not a predetermined condition is satisfied;
an occupant for occupying said plurality of codecs for said compression instructor when a determination result of said determiner is affirmative; and
a canceller for canceling an occupation state of said occupant on at least one of said plurality of codecs when the determination result of said determiner is negative, wherein the expansion instructor waits to issue an instruction in response to an occupation process of said occupant and issues the instruction at a time of said canceller canceling the occupation state;
wherein the image processing apparatus makes a parallel expansion process performable when more than one codec of the plurality of codecs are in the available state, and wherein the image processing apparatus performs a single expansion process when only one codec of the plurality of codecs is in the available state.
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Abstract
An image signal processing apparatus includes two JPEG codecs. A plurality of frames of image signals periodically input from a multiplexer are individually compressed by the two JPEG codecs, and the compressed image signals are recorded on a hard disk by an HDD. Furthermore, the plurality of frames of the compressed image signals reproduced from the hard disk are individually expanded by the two JPEG codecs, and the expanded image signals are output to a monitor. Herein, each of the JPEG codecs selectively executes individual compression of the plurality of frames of the image signals and individual expansion of the plurality of frames of the compressed image signals. A CPU makes the JPEG codecs perform the compression process prior to the expansion process.
12 Citations
8 Claims
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1. An image processing apparatus which records onto a recording medium in a compressed state a plurality of images periodically input and periodically outputs a plurality of compressed images reproduced from said recording medium in an expanded state, comprising:
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a plurality of codecs each of which executes an image compression process and an image expansion process; a compression instructor for instructing at least one codec in art available state out of said plurality of codecs to execute the image compression process; an expansion instructor for instructing at least one codec in the available state out of said plurality of codecs to execute the image expansion process; a determiner for determining whether or not a predetermined condition is satisfied; an occupant for occupying said plurality of codecs for said compression instructor when a determination result of said determiner is affirmative; and a canceller for canceling an occupation state of said occupant on at least one of said plurality of codecs when the determination result of said determiner is negative, wherein the expansion instructor waits to issue an instruction in response to an occupation process of said occupant and issues the instruction at a time of said canceller canceling the occupation state; wherein the image processing apparatus makes a parallel expansion process performable when more than one codec of the plurality of codecs are in the available state, and wherein the image processing apparatus performs a single expansion process when only one codec of the plurality of codecs is in the available state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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- Resources
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Current AssigneeSanyo Electric Company Limited (Panasonic Holdings Corporation)
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Original AssigneeSanyo Electric Company Limited (Panasonic Holdings Corporation)
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InventorsTanaka, Satoshi, Yabumoto, Tetsuro, Sugimura, Yukio, Toguchi, Akira
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Primary Examiner(s)Chen; Wenpeng
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Assistant Examiner(s)Ge; Yuzhen
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Application NumberUS10/301,238Publication NumberTime in Patent Office1,601 DaysField of Search382/239US Class Current382/239CPC Class CodesG06T 9/007 Transform coding, e.g. disc...
