Patent · US Expired

Re-programmable finite state machine

US7173452B2 · kind B2 · utility

7Cited by
7References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 16, 2002
Grant dateFeb 6, 2007
Priority date—
Expiry dateMar 24, 2023

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05B2219/23289
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A re-programmable finite state machine comprising a content-addressable memory (“CAM”) and a read/write memory output array (“OA”). In operation, the CAM receives and periodically latches a status vector, and generates a match vector as a function of the status vector and a set of stored compare vectors. In response, the OA selects for output one of a set of a control vector as a function of the match vector. A state vector portion of the selected control vector is forwarded to the CAM as a portion of the status vector. An output vector portion of the selected control vector controls the operation of external components. Both the set of stored compare vectors and the set of control vectors are fully re-programmable.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.