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. 13, 1995
Filed:
Nov. 29, 1993
Applicant:
Inventor:
Shigeru Otsuka, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
370 951 ; 370 953 ; 370 582 ; 3701101 ; 370118 ; 379 59 ; 379 60 ; 455 331 ;
Abstract
A multiplex audio signal from an exchange apparatus is demultiplexed by a first multiplexer/demultiplexer into demultiplexed signals that are supplied to a first switch circuit which switches between transmission paths to apply the demultiplexed signals to a plurality of audio coding circuits. Certain output signals from the audio coding circuits are supplied to a second switch circuit, time-division-multiplexed, and applied to the first switch circuit. The multiplexed signal is outputted from the first switch circuit for transmission in a given time slot over a radio communication path.