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:
Apr. 24, 2012
Filed:
Jul. 06, 2010
Charles C. Lee, Cupertino, CA (US);
Frank Yu, Palo Alto, CA (US);
Abraham C. MA, Fremont, CA (US);
Jim Chin-nan NI, San Jose, CA (US);
Shimon Chen, Los Gatos, CA (US);
Charles C. Lee, Cupertino, CA (US);
Frank Yu, Palo Alto, CA (US);
Abraham C. Ma, Fremont, CA (US);
Jim Chin-Nan Ni, San Jose, CA (US);
Shimon Chen, Los Gatos, CA (US);
Super Talent Electronics, Inc., San Jose, CA (US);
Abstract
A Low-power flash-memory device uses a modified Universal-Serial-Bus (USB) 3.0 Protocol to reduce power consumption. The bit clock is slowed to reduce power and the need for pre-emphasis when USB cable lengths are short in applications. Data efficiency is improved by eliminating the 8/10-bit encoder and instead encoding sync and framing bytes as 9-bit symbols. Data bytes are expanded by bit stuffing only when a series of six ones occurs in the data. Header and payload data is transmitted as nearly 8-bits per data byte while framing is 9-bits per symbol, much less than the standard 10 bits per byte. Low-power link layers, physical layers, and scaled-down protocol layers are used. A card reader converter hub allows USB hosts to access low-power USB devices. Only one flash device is accessed, reducing power compared with standard USB broadcasting to multiple devices.