Patent ID: 7404022

Claim:
A system for data transmission and control based on Universal Serial Bus (USB) comprising: a USB Master device ( 231 ) includes a DVD player with an LCD display, and a USB Slave device ( 232 ) includes a car-mounted GPS, said USB Master device ( 231 ) comprising a USB Master processor ( 211 ), said USB Slave device ( 232 ) comprising a USB Slave processor ( 212 ), said USB Master processor ( 211 ) coupled with said USB Slave processor ( 212 ) via a USB cable ( 221 ); said USB Master device ( 231 ) further comprising a Data Storage ( 214 ) connected to said USB Master processor ( 211 ), and a Data Consumer ( 215 ) connected to said USB Slave processor ( 212 ) in said Slave device ( 232 ); and a communication connection between said USB Master processor ( 211 ) and said USB Slave processor ( 212 ) via which said USB Slave processor ( 212 ) receives data to be processed through said USB Master processor ( 211 ) from said Data Storage ( 214 ) of said USB Master device ( 231 ).