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:
Apr. 10, 1990
Filed:
Oct. 01, 1987
Applicant:
Inventors:
Hiroo Teraichi, Fujisawa, JP;
Naoshi Inoue, Tokyo, JP;
Yoji Furuya, Inagi, JP;
Shigehiro Kadota, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; H04M / ;
U.S. Cl.
CPC ...
364200 ; 3642222 ; 3642385 ; 379 98 ; 379100 ;
Abstract
A personal computer system with communication function, in which the operating mode is automatically controlled by a tone signal transmitted through a communication channel.