US 2009/0254682 A1Published application

Automatic mapping and updating computer switching device

AssigneeJune-On Co., Ltd.

InventorsJung-Wei Tseng, Cheng-Sheng Chou, Hung-June Wu

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Abstract

The present invention relates to an automatic mapping and updating computer switch device. The computer switching device provides the compatibility between a plurality of devices and a plurality of computers, and comprises a USB host chip connected to the plurality of peripheral devices each containing a USB connector for sending the necessary data (USB device descriptor/report) to a plurality of USB device chips, thus, the computers can acquire the necessary data of the peripheral devices through the connected USB device chips. Whenever the computer switching device re-boots or any of the peripheral devices are plugged in/pulled out, the USB host chip reads the new necessary data again with the previous ones, if any differences are found, the new necessary data is send to the USB device chips for storage. The aforesaid procedure is called DDM (Dynamic Devices Mapping) or full USB Enumeration or full USB Initiation.

Claims5

Dependent claims

An automatic mapping and updating computer switching device, particularly said computer switching device capable of making a plurality of peripheral devices each containing a USB connector compatible with a plurality of computers when connecting, comprising:

a USB host chip, said USB host chip electrically connected to said peripheral devices;
and
a plurality of USB device chips, said USB device chips electrically connected to said USB host chip and said computers each having a USB connection port;
wherein after a communication is established between said USB host chip and said peripheral devices, said USB host chip starts to read, store, map and transmit necessary data of said peripheral devices to said USB device chips and the necessary data are further transmitted to said computers;
when said computer switching device re-boots or any of said peripheral devices is plugged in/pulled out, said USB host chip will read and store new necessary data of current peripheral devices again and further compares the new necessary data with the previous ones, and in case of any differences are found, the new necessary data are mapped into said USB device chips for updating said computers, said procedure is full USB Enumeration or full USB Initiation.

2 more elements

Dependencies are inferred from the claim text.