Portable USB device built with rechargeable functional...

Details Portable USB device built with rechargeable functional... Portable USB device built with rechargeable functional...

2005-09-13

2005-09-13

Ray, Gopal C. (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus expansion or extension

C713S300000

Reexamination Certificate

active

06944701

ABSTRACT:
A portable USB device built with rechargeable functional apparatus is disclosed. The portable USB device has a USB connector for being inserted into a socket of a host device. A USB device module is powered by the +5V pin on the USB connector and activated to perform data exchange via the D+ and D− pins on the USB connector when the USB connector is coupled to the host device, so as to provide a first specific function to the host device. A charge circuit charges the rechargeable battery via the +5V pin when the USB connector is coupled to the host device. A functional apparatus is powered by the rechargeable battery so as to provide second specific function different from the first one when the USB connector is not coupled to the host device.

REFERENCES:
patent: 6357011 (2002-03-01), Gilbert
patent: 6614206 (2003-09-01), Wong et al.
patent: 6636158 (2003-10-01), Bando et al.
patent: 6665801 (2003-12-01), Weiss
patent: 6678535 (2004-01-01), Narayanaswami
patent: 6774604 (2004-08-01), Matsuda et al.
“Hand held imaging spectrometer” by Hinnrichs, M. (abstract only) Publication Date: Oct. 16-17, 2002.
“The Earth is mobile-power” by Efland, T.R. (abstract only) Publication Date: Apr. 14-17, 2003.

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