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. 11, 2014
Filed:
Jul. 12, 2011
Masahiro Nakamura, Hyogo, JP;
Tadashi Ono, Osaka, JP;
Isao Kato, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a communication system in which data is transmitted and received in synchronization with a clock signal, a peripheral device cannot transfer data to a host device when the host device stops outputting the clock signal and thus the peripheral device cannot promptly transmit an interrupt request to the host device. A peripheral device transmits an interrupt request to a host device using a signal line for a clock signal when the clock signal output has been stopped. The host device receives the interrupt request, and resumes outputting a clock signal to enable data transmission and reception to and from the peripheral device. This enables the peripheral device to transmit an interrupt request to the host device promptly when the output of the clock signal from the host device has been stopped.