Integrated circuit interface with locking signal

Details Integrated circuit interface with locking signal Integrated circuit interface with locking signal

2007-05-24

2010-02-09

Tzeng, Fred (Department: 2627)

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Reexamination Certificate

active

07660061

ABSTRACT:
An integrated circuit for recovering a position and clock period from an input bi-phase encoded digital signal, such as an SPDIF signal, has a longest interval detector arranged to count the intervals between phase changes of the input digital signal to derive the longest interval between the phase changes. The longest interval indicates the position and period length of a preamble portion of sub-frames of the signal. A store arranged to store the longest interval between phase changes and an output provides a signal indicating the position of the longest interval between phase changes and an indication of the clock period of the input digital signal. The longest interval detector includes a pair of counters for even and odd phase transitions and counts in multiple intervals such that a clock period of 2 UI can be recovered directly from the longest pulse of 6 UI present in the preamble X of an SPDIF signal.

REFERENCES:
patent: 3030614 (1962-04-01), Lehan et al.
patent: 3377625 (1968-04-01), Filipowsky
patent: 3903504 (1975-09-01), Rogers et al.
patent: 3980825 (1976-09-01), Morrien
patent: 4449119 (1984-05-01), Hanna et al.
patent: 5047930 (1991-09-01), Martens et al.
patent: 5299118 (1994-03-01), Martens et al.
patent: 5327302 (1994-07-01), Khoury et al.
patent: 5585975 (1996-12-01), Bliss
patent: 5666341 (1997-09-01), Horibe et al.
patent: 7423827 (2008-09-01), Neville et al.
patent: 2003/0223409 (2003-12-01), Wiebe
patent: 2005/0249323 (2005-11-01), Konz
European Serach Report for EP06252736.1; Oct. 6, 2006.

Affiliated with

Also associated with

Rating

Integrated circuit interface with locking signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated circuit interface with locking signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated circuit interface with locking signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4187188