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. 15, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Yukihiko Ogata, Kawasaki, JP;
Takuji Nakatsuma, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ; H04M / ;
U.S. Cl.
CPC ...
370421 ; 370524 ; 379164 ; 379 9317 ;
Abstract
In a communication system having a plurality of communication apparatus connected to at least one line, each communication apparatus has detection circuitry for detecting a call signal from the line to other communication apparatus and inform circuitry for informing such call or circuitry for altering such call to a call to its own apparatus.