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:
Dec. 26, 1995
Filed:
Mar. 27, 1992
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379355 ; 379100 ;
Abstract
A communication apparatus for performing auto-redial processing for repetitively calling a distant station using a prestored call number until a connection can be attained, includes a response state detection unit for detecting a response state of the distant station or an exchanger through a line after a calling operation is started, and a control unit for judging according to a detection state of the response state detection unit whether or not the call number is correct, and for, when it is judged that the call number is false, interrupting the auto-redial processing.