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:
Feb. 21, 2017
Filed:
Jun. 21, 2012
Applicant:
Mikio Hama, Kawasaki, JP;
Inventor:
Mikio Hama, Kawasaki, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/12 (2006.01); H04N 1/00 (2006.01); H04L 29/06 (2006.01); H04N 1/327 (2006.01);
U.S. Cl.
CPC ...
H04L 69/08 (2013.01); H04L 65/1006 (2013.01); H04L 65/1069 (2013.01); H04N 1/0022 (2013.01); H04N 1/32765 (2013.01); H04N 1/32789 (2013.01); H04N 2201/0024 (2013.01); H04N 2201/0093 (2013.01);
Abstract
A communication apparatus that accurately measure a time period Trequired for line connection in IPFAX, and optimizes the timing with which a T.38 CNG command is sent out. An AT command that is a dial request is converted into a SIP command that is a session-establishment request, and the SIP command is sent. When there is a provisional response or a session-establishment response to the sent SIP command, a Ttimer which clocks the time period Tis caused to start counting.