Patents by Inventor Ryan Richard Schatz

Ryan Richard Schatz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Adaptive phase shift filtration of pointer justification jitter in synchronous-plesiosynchronous signal desynchronization
    Patent number: 6744787
    Abstract: Pointer justification event induced low frequency jitter is attenuated during desynchronization of a synchronous input data stream into a plesiosynchronous output data stream. The output data stream has a clock rate T and is made up of tb byte multi-frames containing a nominal number tdb of data bits (tdb=772 and tb=104 for T1 data; tdb=1024 and tb=140 for E1 data). An integer number pc of phase adjustment commands are provided (in the preferred embodiment, pc=12 for T1 data and pc=9 for E1 data). A count having a total value pjT, where 1≦pjT≦tb, is maintained of the total number of positive pointer justification events previously encountered in the data stream. A separate count having a total value pcT, where 1≦pcT≦tdb*pc, is maintained of the total number of previously issued phase adjustment commands. If a positive pointer justification event is detected in the data stream, pjT is incremented by one.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: June 1, 2004
    Assignee: PMC-Sierra, Inc.
    Inventors: Ryan Richard Schatz, Winston Mok, John Norman Walsh