Apparatus and method for detecting end of serial bit stream

Details Apparatus and method for detecting end of serial bit stream Apparatus and method for detecting end of serial bit stream

1996-11-01

1999-02-09

Chin, Stephen

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375342, H04L 2706

Patent

active

058704370

ABSTRACT:
A detector detects the end of a serial bit stream wherein the serial bit stream is based on one clock and the detector (and other associated circuitry) is based on a different, asynchronous clock. An Exclusive OR block receives the serial bit stream and a digital strobe signal according to IEEE High Performance Serial Bus Specification 1394. Based on this standard, one but not both of the serial bit stream and digital strobe signal changes level every data interval. The Exclusive OR block outputs a periodic signal when the serial bit stream and digital strobe signal are present but outputs a constant digital level upon termination of the serial bit stream and digital strobe signal. The detector also includes a first register coupled to receive the output of the receiver, a second register coupled to receive the output of the first register and a third register coupled to receive the output of the second register. All three registers are clocked simultaneously. The serial bit stream and digital strobe signal are asynchronous relative to the clock. Hardware logic determines when contents of the third register is same as contents of the second register; this indicates termination of the serial bit stream and digital strobe signal.

REFERENCES:
patent: 4370748 (1983-01-01), Janc et al.
patent: 5077758 (1991-12-01), Deluca et al.

Affiliated with

Also associated with

Rating

Apparatus and method for detecting end of serial bit stream does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for detecting end of serial bit stream, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for detecting end of serial bit stream will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1956570