Tony I Lin

US Patent:

61920932, Feb 20, 2001

Filed:

Jul 30, 1999

Appl. No.:

9/364481

Inventors:

Benny W H Lai - Frement CA
Tony Lin - La Mirada CA
Charles L. Wang - San Jose CA

Assignee:

Agilent Technologies - Palo Alto CA

International Classification:

H04L 2536
H04L 2540
H04L 700

US Classification:

375371

Abstract:

A method and system for receiving CIMT encoded data transmitted in simplex mode. The receiver (12) is adapted to receive a stream of digital data and analyze successive portions thereof to identify a predetermined pattern of data. The receiver (12) outputs the received digital data in response to a detection of the predetermined pattern of data and, in the alternative, outputs other data in response to a failure to detect the predetermined pattern of data. In the illustrative embodiment, the stream of digital data is transmitted as conditional invert master transition encoded simplex data. The receiver (12) includes a CIMT decoder (16) which analyzes the input data to identify a master transition therein. The receiver (12) uses a local clock to analyze successive portions of the received data stream and word alignment logic to identify a master transition therein. In the best mode, the inventive teachings are implemented in a communications system having a CIMT encoder (13) which transmits a time scrambled flag bit along with a stream of CIMT encoded data.