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:
May. 26, 1998
Filed:
Dec. 12, 1995
Shigeru Nishikawa, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Devices, such as a mouse and a keyboard, a monitor of a PC, a microphone and a speaker provided on the extension board, and a sound input/output device of the sound input/output unit which is connected to the extension board are utilized as a display unit, an operation unit, and a sound input/output unit of the key telephone, respectively, by interchanging control information between a central processing unit of a PC main device and a control unit of an extension board which includes an exchange circuit, an information processing circuit, an I/F circuit, and a telephone circuit for an extension line. Accordingly, it is possible to provide an information processing and communication apparatus, capable of controlling at least one external line and a plurality of extension lines, with superior operability, which has combined functions of a PC and a key telephone system.