Portable electronic device

Details Portable electronic device Portable electronic device

2011-07-12

2011-07-12

Previl, Daniel (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S005230, C340S870030

Reexamination Certificate

active

07978092

ABSTRACT:
Disclosed is a portable electronic device, including: an interface unit connected to an external device; a housing provided with the interface unit; a cap placed in a location allowing for the covering of the interface unit and covering the interface unit when attached to the housing; a signal detecting line placed in the interface unit and connected to a predetermined electric potential when the external device is connected to the interface unit; a switch which electrically connects the signal detecting line to the predetermined electric potential when the cap is attached to the housing and electrically disconnects the signal detecting line from the predetermined electric potential when the cap is separated from the housing; and a control unit connected to the interface unit and configured to determine whether the signal detecting line is electrically connected to the predetermined electric potential or not.

REFERENCES:
patent: 7085558 (2006-08-01), Berstis et al.
patent: 7278877 (2007-10-01), Cho
patent: 2002/0090977 (2002-07-01), Chen
patent: 03-239234 (1991-10-01), None
patent: 07-209723 (1995-08-01), None
patent: 08-153977 (1996-06-01), None
patent: 10-010627 (1998-01-01), None
patent: 2006-119372 (2006-05-01), None

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