System and method for recognizing external device by...

Details System and method for recognizing external device by... System and method for recognizing external device by...

2008-03-06

2010-11-16

Sorrell, Eron J (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral monitoring

C710S016000

Reexamination Certificate

active

07836218

ABSTRACT:
Disclosed are a system, a method and device for recognizing an external device by a portable terminal. The external device determines whether the external device has recognized the portable terminal according to signals with a predetermined form, which have been output from the portable terminal regardless of the on/off state of the power source thereof, and outputs signals for a predetermined period of time according to a result of the determination. Thereafter, the portable terminal recognizes the external device according to the number or the form of signals input from the external device through a recognition node for a predetermined period of time. As a result, the portable terminal can recognize more various external devices, such as an external battery and a charging cradle which provides stereo sound, by using the recognition node of the portable terminal.

REFERENCES:
patent: 6087803 (2000-07-01), Eguchi et al.
patent: 6510524 (2003-01-01), Osborn et al.
patent: 2002/0169913 (2002-11-01), Heizer et al.
patent: 2007/0226381 (2007-09-01), Kuan et al.
patent: 10-0671503 (2007-01-01), None

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