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:
Mar. 31, 2015
Filed:
Oct. 13, 2011
Chee Hoe Chu, San Jose, CA (US);
Ping Zheng, San Jose, CA (US);
Wei Zhou, San Jose, CA (US);
Po-chien Chang, Saratoga, CA (US);
Chee Hoe Chu, San Jose, CA (US);
Ping Zheng, San Jose, CA (US);
Wei Zhou, San Jose, CA (US);
Po-Chien Chang, Saratoga, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
A peripheral device includes a host interface, a power interface, a switch, a control module, and a regulator. The host interface transfers data between the peripheral device and a host. The power interface receives power from a power source. The power source is separate from the peripheral device and the host. The control module monitors the host interface and generates a control signal to transition the switch from a first state to a second state when the host interface does not receive an expected signal from the host. The regulator powers the control module and a circuit of the peripheral device based on the power received from the power source. The control module is separate from the circuit. The switch activates the control module, the regulator and the circuit when in the first state and deactivates the control module, the regulator and the circuit when in the second state.