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:
Nov. 07, 2017
Filed:
Jun. 03, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Shigeo Miura, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 11/00 (2006.01); H04N 1/327 (2006.01); H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
H04N 1/32728 (2013.01); H04N 1/00323 (2013.01); H04N 1/3273 (2013.01); H04N 2201/0093 (2013.01);
Abstract
A facsimile apparatus includes a first detection unit, a second detection unit, a third detection unit, and a determination unit. The first detection unit detects a line voltage in an on-hook state. The second detection unit detects a line voltage in an off-hook state. The third detection unit detects a line current in an off-hook state. The determination unit determines a line impedance based on the line voltage detected by the first detection unit, the line voltage detected by the second detection unit, and the line current detected by the third detection unit.