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Article: Singapore Inventors Develop Universal Serial Bus Ports Interconnection System
- Article from:
- US Fed News Service, Including US State News
- Article date:
- November 20, 2008
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ALEXANDRIA, Va., Nov. 20 -- Ann Tiong Ong, Xun Zhang Wang and James Jianyun Zhou, all from Singapore, have developed a method for interconnecting downstream universal serial bus ports.
According to the abstract released by the U.S. Patent & Trademark Office: "An invention is provided for limiting power during an unconfigured state of a universal serial bus (USB) device. The invention includes a first voltage regulator, which supplies a first voltage, in electrical communication with internal device logic of a USB device. A second voltage regulator is also included that supplies a second voltage that is higher than the first voltage. In addition, a current limiting resistor is included. ...