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:
Jun. 17, 1986
Filed:
Sep. 06, 1983
Applicant:
Inventors:
Charles E Huffman, Plano, TX (US);
Stephen R Southerland, Plano, TX (US);
Assignee:
Rockwell International Corporation, El Segundo, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
3403 / ; 370 99 ;
Abstract
An interface device for use between a North American PCM channel bank and a CCITT PCM channel bank which allows data to stay in digital format rather than being converted to voice frequency. The interface takes care of not only the completely different serial data rates, but the different transfer characteristics of the channel data words. Synchronization is obtained by dividing the serial data stream into enough channel banks so that there is less than one-half cycle time period difference between the frequency of the incoming and outgoing data streams for one cycle of channel data words.