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:
Jul. 25, 1995
Filed:
Oct. 12, 1993
Naoji Fujino, Sagamihara, JP;
Mitsuru Tsuboi, Kawasaki, JP;
Shoji Tominaga, Yokohama, JP;
Takao Matsuda, Yokohama, JP;
Naomi Nishiyama, Fujisawa, JP;
Takahiro Aramaki, Inagi, JP;
Ken-ichi Abiru, Yokohama, JP;
Toshiaki Nobumoto, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The high performance multiplexed transmission system of this invention is configured by a sound coding unit for coding voice input information by separating it into a core information part for assuring the minimum acceptable sound quality and a supplementary information part discardable in stages per the transmission priorities. There is a silent section detecting unit for detecting silent sections of voice input information. In addition, there is a multiplexing unit for multiplexing only the information synchronizing with the correspondent's coder for the voice channels from which no sound is detected, or first the core information part and second the supplementary information part from the ones with the highest priorities in stages in fixed length frames, for discarding the supplementary information parts, which cannot be multiplexed because of a band deficiency.