The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 1986
Filed:
Dec. 27, 1983
Applicant:
Inventor:
Thomas C McDermott, Plano, TX (US);
Assignee:
Rockwell International Corporation, El Segundo, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ;
U.S. Cl.
CPC ...
370 13 ; 370100 ; 371 49 ;
Abstract
Monitoring or error checking equipment for use with multiplexing circuitry at the transmission end of a communication line is disclosed which accomplishes a large reduction in circuitry by using transmitter generated low speed timing signals and clock signals to demultiplex the output data into nonsymmetrical or timing irregular data. The plurality of channels of nonsymmetrical data are then each checked for parity and framing pulses as well as clock activity by time multiplexed switching equipment on a cyclical basis.