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. 14, 1992
Filed:
Apr. 12, 1990
Yoshihisa Tadokoro, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A communication terminal apparatus connected to an ISDN treats communication information as being confidential in accordance with the result of a comparison between a subaddress received along with the communication information and confidentiality information stored in advance and corresponding to the subaddress, or analyzes confidentiality information contained at a subaddress and treats communication information as being confidential based on the results of the analysis. Also disclosed is a communication terminal apparatus connected to an ISDN for adding specific destination information to communication information in accordance with the result of a comparison between a subaddress received along with the communication information and destination information stored in advance and corresponding to the subaddress.