USB-to-VGA converter

Details USB-to-VGA converter USB-to-VGA converter

2007-04-10

2007-04-10

Perveen, Rehana (Department: 2112)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S107000, C710S100000, C710S305000, C710S306000

Reexamination Certificate

active

10316013

ABSTRACT:
A USB-to-VGA converter includes a USB controller connectable to a USB port of a computer for receiving USB based display signals from the computer, a VGA controller connectable to a display device for conveying VGA signals to the display device and a bridge connected between the USB controller and the VGA controller. The bridge receives a bus control command from the USB controller and issues a first-in-first-out control signal to the USB controller to receive the USB based display signals from the USB controller in a first-in-first-out manner. The bridge circuit converts the USB based display signals into corresponding VGA signals and forwarding the VGA signals to the VGA controller, which in turn applies the VGA signals to the display device. No display interface card is required inside the host computer for generation of the VGA signals.

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Subramaniam, K, “VinChip Announces Release of USB-PCI Device Bridge IP”, San Jose, CA.
National Semiconductor, USBN9602 (Universal Serial Bus) Full Speed Function Controller With DMA Support, Nov. 1998.

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