Photography – With object illumination for exposure – With power supply detail
Reexamination Certificate
2006-08-10
2009-11-10
Perkey, W B (Department: 2862)
Photography
With object illumination for exposure
With power supply detail
C396S301000, C396S302000, C396S303000, C348S333130, C348S372000
Reexamination Certificate
active
07616882
ABSTRACT:
An electronic device and method for power management in an electronic device is provided. In an embodiment, the electronic device includes the functionality of a personal digital assistant, wireless email paging and a camera with a flash that is operated via self-contained power supply in the form of a battery. The device also includes a supervisor circuit which causes the device to enter sleep mode, or disables the device, or certain features of the device, if the battery level falls below a certain threshold. A method in accordance with an embodiment performs, in response to a request to fire the flash, a pre-flash test which is selected so as to not trip the supervisor circuit. The battery level is examined after the pre-flash test. If the battery level meets certain criteria, the full flash is permitted to proceed, else the full flash is not permitted to proceed.
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Chinese Patent Application No. 2007103051274 First Office Action date Mar. 6, 2009, Examiner: Lin Liu.
Book Christopher
Guthrie Martin
Winger Lyall
Currier T. Andrew
Fenwick Warren K
Perkey W B
Perry & Currier Inc.
Research In Motion Limited
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