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:
May. 23, 1989
Filed:
Nov. 10, 1987
Applicant:
Inventors:
Hung-Hsiang J Chao, Madison, NJ (US);
Sang H Lee, Bridgewater, NJ (US);
Assignee:
Bell Communications Research, Inc., Livingston, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ;
U.S. Cl.
CPC ...
370 94 ; 3701101 ; 370102 ;
Abstract
A multiplexer for time division multiplexing a plurality of DTDM bit streams is disclosed. By taking advantage of the fact that the frames comprising each DTDM bit stream are not 100% occupied, the frequency of the higher speed output bit stream can be made equal to the product of the nominal center frequency of the input tributaries and the number of input tributaries. This is accomplished through the positive and negative stuffing of DTDM frames.