Patent Number: 7,043,646

Title: Electronic device with plural interface ports wherein one of the interface ports is used as an assist power supply port

Abstract: A CD-R drive has two USB ports. One USB port is connected as an ordinary interface port to a host computer by a USB cable, and the other USB port is connected as an assist power supply port to the host computer by another USB cable. With this arrangement, the CD-R drive can operate with maximum current consumption of 1.0 A without using a separate AC power supply adapter because each USB port allows passage of 500 mA of current at maximum.

Inventors: Enami; Katsuya (Sayama, JP), Watanabe; Hiroomi (Iruma, JP), Suzuki; Yuuki (Beppu, JP)

Assignee: TEAC Corporation

International Classification: G06F 1/26 (20060101)

Expiration Date: 5/09/02018