Patent ID: 6577337
Filing Date: 2003-06-10
Classification: G06F,G09G,H04N

Abstract:
A monitor for a visual communication system, said monitor being coupled to a host included in the visual communication system, and said monitor being provided with a universal serial bus (USB) hub in order to enable visual communication through the host, said monitor comprising:a digital camera for generating a digital video data signal; a memory for storing the digital video data signal; a digital signal processor(DSP) for controlling a digital camera operation and a read/write operation of the memory while controlling digital video data signal transference between the memory and the host; and a USB control unit for controlling digital video data signal transmission between the host and the DSP through at least one USB hub port, wherein the DSP comprises an interface unit for operating parallel data transmission with the USB control unit and the USB control unit comprises: a plurality of USB hub ports; a hub repeater for executing serial data transmission with the plurality of hub ports; a hub controller for controlling a data transfer operation in response to a control signal of the DSP; and a serial-parallel/parallel-serial converter for executing serial to parallel and parallel to serial data conversion between the DSP and the hub repeater.