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:
Oct. 13, 1992
Filed:
Jul. 16, 1990
Applicant:
Inventors:
Wataru Takeuchi, Tokyo, JP;
Takashi Matsumoto, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
3701001 ; 370 581 ; 370112 ;
Abstract
A time division speech path apparatus includes a frame synchronization detector, a pointer detector, a pointer inserting circuit, an address converter, a selector, and a demultiplexer. Pointers are set on highways so that a relationship between the time slots on the highways and addresses of the speech path memory at which the time slots are written is determined on the basis of the frame phases and pointer values of the respective highways. Data read out from the speech path control memory are converted into addresses in accordance with this relationship and are supplied as read addresses to the speech path memory.