发明名称 |
VIDEO PLAYER AND/OR RECORDER WITH HADAMARD TRANSFORM |
摘要 |
<p>VIDEO PLAYER AND/OR RECORDED WITH HADAMARD TRANSFORM An apparatus for performing a Hadamard transform on video data for compression of data to be recorded and decompression of data read from a record for display achieves the necessary high rate by means of two or more adders and two subtractors operating in parallel. A store that holds the data during successive passes through an arithmetic unit has accessing circuits and a set of registers and associated gates that fetch and store the data in a repetitive sequence that simplifies storage accessing. Data is processed in units that represent for example eight lines of a television picture and an output buffer is provided for the decompressor of a video disk player that receives data as it is processed and holds previously processed data unit by a storage accessing circuit that minimizes the amount of buffer storage that must be provided in the player. PO9-77-029</p> |
申请公布号 |
CA1133129(A) |
申请公布日期 |
1982.10.05 |
申请号 |
CA19790339629 |
申请日期 |
1979.11.13 |
申请人 |
DISCOVISION ASSOCIATES, A PARTNERSHIP |
发明人 |
BAILEY, JACK H.;OTTAWAY, GERALD H. |
分类号 |
G06F17/14;G06T9/00;H04N5/85;H04N5/926;(IPC1-7):04N5/781 |
主分类号 |
G06F17/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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