Patent · US Expired

Method and apparatus for recognition of a framing pattern distributed in a serial bit stream

US5204883A · kind A · utility

13Cited by
1References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 1, 1991
Grant dateApr 20, 1993
Priority date
Expiry dateMay 1, 2011

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04J3/0608
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Method and apparatus for recognizing of a framing pattern of M single bits distributed at intervals of a fixed number, N of bits, as measured from the start of one framing bit to the start of the next, in an incoming serial bit stream. The system makes a computation following each reception of an arbitrary group of N incoming data, and after the minimum number of computation steps to distinguish between a `look-alike` framing pattern and a `true` framing pattern, points out with no ambiguity the very position of the "true" pattern within the bit stream, thus allowing synchronization over that stream.

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