发明授权
- 专利标题: Single ram multiple-delay variable delay circuit
- 专利标题(中): 单脉冲多延时可变延迟电路
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申请号: US213852申请日: 1994-03-16
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公开(公告)号: US5479128A公开(公告)日: 1995-12-26
- 发明人: Yung-Jung Jan , Po-Chuan Huang , Ching-Hsiang Yang
- 申请人: Yung-Jung Jan , Po-Chuan Huang , Ching-Hsiang Yang
- 申请人地址: TWX Hsinchu
- 专利权人: Industrial Technology Research Institute
- 当前专利权人: Industrial Technology Research Institute
- 当前专利权人地址: TWX Hsinchu
- 主分类号: G11C8/04
- IPC分类号: G11C8/04 ; G11C7/00
摘要:
A multiple-delay variable delay circuit uses a random access memory (RAM) array to provide adjustable delay of a block of input data, such as previously necessitated use of an extensive shift register configuration. A single RAM array, having a given capacity, is used to economically provide individual delays to a plurality of blocks of input data, with the aggregate of the individual delays not exceeding the capacity of the single RAM array. Time-shared use of a high speed RAM enables simultaneous single-port processing of data blocks, with delay control circuits providing utilization of separate portions of the RAM capacity, to provide individual delays resulting from successive read/write cycles utilizing a desired total of incremental delays. Simplified delay control circuits provide manufacturing and operating economies with single-port or multi-port RAM arrays.
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