06874044 is referenced by 45 patents and cites 19 patents.

A flash-drive or flash-card reader connects to a personal computer (PC) through a serial link such as a Universal-Serial-Bus (USB), IEEE 1394, SATA, or IDE. A local CPU acts as the bus master of a CPU bus that connects to slave ports on a flash-memory controller, a serial engine, and a RAM buffer. A second bus in parallel to the CPU bus connects a second slave port on the RAM buffer to a master port on the flash-memory controller and to a master port on the serial engine. The flash-memory controller or the serial engine can use their master ports to transfer data to and from the RAM buffer using the second bus, allowing the CPU to retain control of the CPU bus. The second bus is a flash-serial buffer bus that improves data transfer rates. The flash-memory controller can prefetch into the RAM buffer.

Title
Flash drive/reader with serial-port controller and flash-memory controller mastering a second RAM-buffer bus parallel to a CPU bus
Application Number
10/605140
Publication Number
6874044 (B1)
Application Date
September 10, 2003
Publication Date
March 29, 2005
Inventor
Tzu Yih Chu
San Jose
CA, US
Sun Teck See
San Jose
CA, US
Horng Yee Chou
Palo Alto
CA, US
Agent
Stuart T Auvinen
Assignee
SuperTalent Electronics
CA, US
IPC
G06F 013/12
G06F 013/00
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