Circuit arrangement for frame and phase synchronization of a...

H - Electricity – 04 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

340/205, 340/73

H04L 7/00 (2006.01) H04J 3/06 (2006.01) H04L 7/04 (2006.01) H04L 7/08 (2006.01)

Patent

CA 1226636

Abstract of the Disclosure Circuit Arrangement for Frame and Phase Synchronization of a Local Sampling Clock With such a circuit arrangement, the sampling clock is synchronized to the frame position and the phase of the characters of a received character stream containing a "unique word" at regular intervals. In a digital correlator (1), a cross- correlation function is generated from a unique word stored therein and from the received, sampled character stream, and a frame detection circuit (2) derives a frame clock (RT1) from those maxima of the crosscorrelation function recurring at intervals of one frame period. To achieve synchronization at any polarity of the received character stream (i.e., even if the tip and ring wires of the subscriber line are interchanged), a second frame detection circuit (3) derives a second frame clock (RT2) from those minima of the crosscorrelation function recurring at intervals of one frame period. A clock selection circuit (8) determines which of the two frame clocks is received within a limited time interval. From this frame clock, control information for representing the phase of the sampling clock (AT) is derived in a phase synchronization circuit (10). (Fig.2)

462742

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Circuit arrangement for frame and phase synchronization of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit arrangement for frame and phase synchronization of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit arrangement for frame and phase synchronization of a... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1273365

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.