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.

Date of Patent:
Jan. 24, 2017

Filed:

May. 22, 2015
Applicant:

Kyocera Document Solutions Inc., Osaka-shi, JP;

Inventor:

Yuya Maesono, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/00 (2006.01); G06F 1/32 (2006.01); G06F 13/40 (2006.01);
U.S. Cl.
CPC ...
G06F 1/325 (2013.01); G06F 1/3206 (2013.01); G06F 1/3215 (2013.01); G06F 13/4081 (2013.01); G06F 2213/0042 (2013.01); Y02B 60/1228 (2013.01); Y02B 60/1235 (2013.01);
Abstract

A pull-up resistor of an electronic device pulls up a potential of a USB signal line that is for connection with a host, thereby allowing the host to detect a communication speed. In response to a status request from the host in a normal power mode, a transmission-reception section transmits a status response indicating a switchable status when the electronic device is switchable to a power saving mode. A control section performs switching to the power saving mode after the host suspends transmission of the status request upon receipt of the status response, and performs switching to the normal power mode in response to a specific event within the electronic device in the power saving mode. A switch disables the pull-up to inform the host about disconnection, and enables the pull-up to inform the host that the connection is re-established, thereby causing transmission of the status request to be resumed.


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