Invention Grant
- Patent Title: CAM design for bit string lookup
- Patent Title (中): CAM设计用于位串查询
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Application No.: US14847020Application Date: 2015-09-08
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Publication No.: US09583191B1Publication Date: 2017-02-28
- Inventor: IJsbrand Wijnands , Gregory J. Shepherd
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agent Samuel M. Katz
- Main IPC: G11C15/04
- IPC: G11C15/04 ; G11C15/00

Abstract:
In one embodiment, a programming content addressable memory (CAM) comprising at least one match line, the at least one match line being preloaded to high, and being logically OR-ed for all selector lines the at least one match line being inverted to low upon a match result the at least one match line comprising transistors and grounding which are activated only when a stored data value and a corresponding selector line evaluate to 1 and the corresponding selector line having a logical AND with the stored data value, wherein the programming CAM is implemented as a Bit Indexed Explicit Replication (BIER) table. Related apparatus, systems and methods are also described.
Public/Granted literature
- US20170069383A1 CAM DESIGN FOR BIT STRING LOOKUP Public/Granted day:2017-03-09
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