Patent Number: 6,338,143

Title: Electronic device

Abstract: An electronic device includes a power supply circuit selectively providingan external power source or an internal power source, a first partdetermining whether the external power source is selected, a second partdetecting a type of a functional unit used in the electronic device, and athird part which controls to supply the functional unit with electricityfrom one of the external and internal power sources on the basis ofdetermination results obtained by the first and second parts.

Inventors: Shimazaki; Asao (Kawasaki, JP)

Assignee:

International Classification: G06F 1/26 (20060101); G06F 001/26 ()

Expiration Date: 01/08/2014