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. 04, 2012
Filed:
Aug. 26, 2008
Eric SO, Markham, CA;
Stephen U. Yao, Markham, CA;
Alan Shiu Lung Tsun, Markham, CA;
QuickLogic Corporation, Sunnyvale, CA (US);
Abstract
Embodiments of the present invention provide a unique capability of implementing a pair of pseudo-PHY interfaces using a bridge. From the host and device perspectives, the host and device communicate through a PHY interface. The bridge, however, avoids actually using a USB PHY interface. This PHY-less bridge allows communication between a host and a device at high speeds without high-power transceivers associated with a USB PHY interface. In accordance with the present invention, a host and a device may be coupled together using a PHY-less bridge using the same interface or translating between different interfaces by using a wrapper. Such PHY-less bridges include a UTMI-to-UTMI bridge, a UTMI-to-ULPI bridge, a ULPI-to-UTMI bridge and a ULPI-to-ULPI bridge, each avoiding the need for a USB PHY interface.