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:
Sep. 01, 2015
Filed:
Dec. 27, 2011
Anup Nayak, Fremont, CA (US);
Nicholas Bodnaruk, Sunnyvale, CA (US);
Derwin Mattos, San Mateo, CA (US);
Shailja Garg, Fremont, CA (US);
Anup Nayak, Fremont, CA (US);
Nicholas Bodnaruk, Sunnyvale, CA (US);
Derwin Mattos, San Mateo, CA (US);
Shailja Garg, Fremont, CA (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
USB physical interface subsystems are provided that include a protection circuit including a power supply interface and a plurality of pin interfaces, a pin identifier circuit in communication with the protection circuit for detecting a device coupling to a pin connected to one pin interface of the plurality of pin interfaces, a USB physical interface, and a dual power supply regulator configured to receive power via the power supply interface, to continuously supply a first voltage to the protection circuit, and to provide a second voltage and a third voltage to the pin identifier circuit and the USB physical interface, the second voltage and the third voltage being switched outputs.