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. 30, 1996
Filed:
Jul. 12, 1994
Applicant:
Inventor:
Stephen Morley, Stoke Gifford, GB;
Assignee:
Hewlett-Packard Company, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370 82 ; 3701051 ; 370112 ; 379 93 ; 371 30 ; 371 471 ;
Abstract
The present invention concerns a multiplexer for use in a system for transmitting more than one type of data, e.g. a system for transmitting voice and data. The invention eliminates transmission errors in framed data due to clock errors on the transmission side by appropriate choice of the length of multiplexer frames. Two embodiments are disclosed, one in which the frame rate of the multiplexer is greater than the frame rate of a voice coder and another in which the length of multiplexer frames is slightly adjustable to account for clock errors.