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. 13, 2010
Filed:
Jun. 29, 2004
Muneki Nakao, Chiba, JP;
Yosuke Ezumi, Tokyo, JP;
Tomoyuki Takeda, Tokyo, JP;
Yoshiyuki Hirai, Tokyo, JP;
Shinya Kogure, Ibaraki, JP;
Muneki Nakao, Chiba, JP;
Yosuke Ezumi, Tokyo, JP;
Tomoyuki Takeda, Tokyo, JP;
Yoshiyuki Hirai, Tokyo, JP;
Shinya Kogure, Ibaraki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A communication apparatus which performs IP communication and analog communication through an ADSL gateway obtains an IP address of a party station from an SIP proxy and transmits/receives communication data with the party station on an IP network based on a file transmission/reception protocol such as FTP or HTTP when a party station's telephone number corresponds to a VoIP network. The apparatus performs analog facsimile communication on a line switching network when the party station does not correspond to the VoIP network. Moreover, the apparatus performs the analog facsimile communication on the VoIP network or the line switching network when the party station corresponds to the VoIP network but does not have any digital communication means. Thus, in the apparatus corresponding to analog and network communication paths, it is possible to select an appropriate communication path and achieve high-speed and high-reliability communication without any complicated operation.