发明授权
US06906936B1 Data preclassifier method and apparatus for content addressable memory (CAM) device
失效
用于内容可寻址存储器(CAM)设备的数据预分类器方法和装置
- 专利标题: Data preclassifier method and apparatus for content addressable memory (CAM) device
- 专利标题(中): 用于内容可寻址存储器(CAM)设备的数据预分类器方法和装置
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申请号: US10320049申请日: 2002-12-16
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公开(公告)号: US06906936B1公开(公告)日: 2005-06-14
- 发明人: David V. James , Jagadeesan Rajamanickam
- 申请人: David V. James , Jagadeesan Rajamanickam
- 申请人地址: US CA San Jose
- 专利权人: Cypress Semiconductor Corporation
- 当前专利权人: Cypress Semiconductor Corporation
- 当前专利权人地址: US CA San Jose
- 代理商 Bradley T. Sako
- 主分类号: G11C15/00
- IPC分类号: G11C15/00
摘要:
A content addressable memory (CAM) device (100) may include a CAM array (102), a CAM array access circuit (104), and a preclassifier circuit (106). A preclassifier circuit (106) may selectively modify portions of an input data value before such an input data value is applied to a CAM array (102). In particular embodiments, a preclassifier circuit (106) may compare a compare portion of an input data value to one or more ranges. If such a portion falls within a range, a preclassifier may substitute a compare portion with a range code value to form a modified input data value.
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