Patents Assigned to Siemens Telecommunication Systems Ltd.
  • Patent number: 5615237
    Abstract: A synchronizer for telecommunications signals includes a telecommunications interface for receiving bits of a telecommunications signal having a frame, an SRAM which stores bit-defined states for a plurality of bit locations in the frame, a state update lookup table for changing the states for a plurality of the frame bit locations of the SRAM based on a previous state and based on an incoming bit of the telecommunications signal, and frame location identification logic for determining the location of the overhead bit of the telecommunications signal frame based on the states of the plurality of bit locations. In a first embodiment, the SRAM is an x by y bit SRAM, where x equals the number of bits in the frame, and y is large enough so that the number of possible states .ltoreq.2.sup.Y.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: March 25, 1997
    Assignees: Transwitch Corp., Siemens Telecommunication Systems Ltd.
    Inventors: Sin-Min Chang, Eugene L. Parrella