US 2012/0059969 A1Published application

Non-invasive direct-mapping usb switching device

AssigneeJune-On Technology Co., Ltd.

InventorsCHENG-SHENG CHOU, Chien-Fa Lin

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Abstract

A non-invasive direct-mapping USB switching device includes a main-controlled microprocessing module connected to a high-impedance module, and the high-impedance module is provided for detecting and monitoring a functional instruction code of a USB device transmitted from a data transmission module, such that a USB connecting module can be used for transmitting the USB data and functional instruction code to detect and monitor the data transmission module when the USB device is connected to the USB switching device. If the data transmitted from the data transmission module is not the required functional code, the non-required functional code (such as the USB data) will be passed, so that the USB device can be connected and communicated with a plurality of computer devices through another USB connecting module and a switching module to achieve a plug-and-play function.

Claims8

Dependent claims

A non-invasive direct-mapping USB (Universal Serial Bus) switching device, comprising:

a first USB connecting module, for connecting a USB device, and transmitting a USB data and a functional instruction code of the USB device;
a data transmission module, for receiving and transmitting the USB data and functional instruction code;
a second USB connecting module, for connecting and transmitting the USB data and functional instruction code;
a switching module, for switching a function of a USB data line, and connecting the USB device to a selected computer;
a high-impedance module, electrically connected in parallel with the data transmission module, for detecting and determining whether or not data transmitted from the data transmission module constitute a required functional instruction code;
and
a main controlled microprocessing module, electrically connected to the high-impedance module, for receiving and determining data transmitted from the high-impedance module is a required functional instruction code, and driving the switching module to perform a switching operation according to the functional instruction code.

4 more elements

Dependencies are inferred from the claim text.