Patents Assigned to Simulation Laboratories, Inc.
  • Patent number: 5175767
    Abstract: An in-band framing encoder having a data input and a data output, for continuously operating a CPE-framed-data signal having CPE-framing data and payload data. The CPE-framed-data signal includes a plurality of time-division-multiplexed frames of payload data achieving channel integrity with CPE-framing data. The encoder comprises a framing-data detector coupled to the data input for detecting the CPE-framing data of CPE-framed-data signal, and a framing-data remover removes the CPE-framing data from the CPE-framed-data signal. A unique-bit-pattern generator generates a unique-bit-pattern sequence. A multiplexer multiplexes the unique-bit-pattern sequence with payload data over the plurality of time-division-multiplexed frames of payload data, thereby generating an in-band-framed-data signal having the unique-bit pattern sequence multiplexed with the payload data.
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: December 29, 1992
    Assignee: Simulation Laboratories, Inc.
    Inventor: James Landry
  • Patent number: 5003599
    Abstract: An in-band framing encoder, for continuously operating on bit stream having external-framing data and payload data. The bit stream includes a plurality of time-division-multiplexed frames of payload data achieving channel integrity with external-framing data. The encoder comprises a framing-bit detector and a framing-bit remover for detecting the external-framing data of the bit stream, and removing the external-framing data from the bit stream. A unique-bit-pattern generator generates a unique-bit-pattern sequence. A multiplexer multiplexes the unique-bit-pattern sequence with payload data over the plurality of time-division-multiplexed frames of payload data, thereby generating internally-reframed data having the unique-bit-pattern sequence multiplexed with the payload data.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: March 26, 1991
    Assignee: Simulation Laboratories, Inc.
    Inventor: James Landry