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:
Aug. 25, 1992
Filed:
Oct. 29, 1990
Applicant:
Inventors:
Yukihiko Ogata, Kawasaki, JP;
Naoto Kagami, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379100 ; 358442 ;
Abstract
A data communication apparatus includes an analog communication unit for performing analog communication, an A/D converter for converting the analog signal from the analog communication unit into a digital voice signal, and an ISDN communication control unit for sending the digital voice signal from the A/D converter onto a digital communication line. Data used in an ISDN are voice data, image data, facsimile communication data, etc.