Portable electronic equipment and method of controlling the same

Patent metadata

Field	Value
Publication number	US-8975786-B2
Application number	US-201113112445-A
Country	US
Kind code	B2
Filing date	May 20, 2011
Priority date	May 21, 2010
Publication date	Mar 10, 2015
Grant date	Mar 10, 2015

Abstract

When portable electronic equipment drops, CPU stops power supply to a prescribed unit. A prescribed unit is a unit that is not necessary for the continuous operation of the portable electronic equipment. When the portable electronic equipment collides with the floor or the ground, the battery terminal may be momentarily detached from the connector. In this case, instantaneous voltage drop or momentary power failure may occur. Power supply to a prescribed unit is stopped while power supply to CPU and RAM is continued. Therefore, power supply to CPU and RAM can be continued with electric charge stored in a capacitor inside the portable electronic equipment.

First claim

What is claimed is:

1. Portable electronic equipment driven by a battery, comprising:
a power supply circuit connected to said battery;
a plurality of functional units operating with power supplied from said battery through said power supply circuit;
a control unit for controlling said plurality of functional units with power supplied from said battery through said power supply circuit;
a detection unit for detecting dropping of said portable electronic equipment; and a
sw…

Assignees

• Fujii Nobuyuki
• Sharp Kk

Inventors

• Fujii Nobuyuki

Classifications

• H04M2250/12

  Electricity · mapped topic

• H04M1/72569 Primary

  Electricity · mapped topic

• H04M1/72454 Primary

  Electricity · mapped topic