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:
Aug. 14, 1990
Filed:
Sep. 06, 1988
Applicant:
Inventors:
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04Q / ;
U.S. Cl.
CPC ...
370112 ; 370 84 ;
Abstract
A multiplexer apparatus supporting variable input bit stream rates in a single device is constructed by common use of a configurable buffer memory and a frequency dividing counter of the reference clock pulse. An externally generated selection signal corresponding to one of the variable input bit stream rates determines the length of the configurable buffer memory. The common frequency dividing counter of the reference clock pulse is designed by comparing bit patterns for the requisite initial counter values for each of the variable input bit stream rates.