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:
Nov. 16, 1993
Filed:
Dec. 10, 1990
Applicant:
Inventors:
Tracy Rust, Austin, TX (US);
Gordon Ford, Round Rock, TX (US);
Cathy Arledge, Austin, TX (US);
Tim Wilson, Austin, TX (US);
Ygal Arbel, Sunnyvale, CA (US);
Mike Kounnas, Austin, TX (US);
Assignee:
ROLM Company, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ; H04M / ; H04B / ; H04L / ;
U.S. Cl.
CPC ...
379157 ; 370 31 ; 379165 ; 379242 ; 379388 ;
Abstract
A communication system includes a number of terminals which communicate through a centralized switch of the system and a lesser number of speech processing circuits which are located remotely from the terminals and which allow full-duplex speakerphone capability to be available to each of the terminals of the system on a shared basis.