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:
Feb. 04, 1997
Filed:
Mar. 21, 1995
Applicant:
Inventor:
Jurgen Hoflinger, Rothenbach, DE;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379 61 ; 370524 ;
Abstract
A digital-line telephone unit having two sets combined in one housing with partially shared circuitry. The unit connects directly to an integrated services digital network (ISDN) and includes both a handset with connection cord and a cordless set. A single digital line terminating unit, a main circuit for the corded telephone, and an auxiliary circuit for the cordless phone are connected to an internal digital bus. The main circuit and auxiliary circuit each contain a respective speech processor. Transmission from the corded handset and the cordless handset can occur simultaneously over different message channels of the ISDN.