Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2006-10-31
2006-10-31
Chang, Yean-Hsi (Department: 2835)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S689000, C710S062000
Reexamination Certificate
active
07130184
ABSTRACT:
A portable terminal connectable to various external accessories. The potable terminal includes an earjack in which the external accessories can be plugged; an analog-to-digital conversion (ADC) section for converting a resistance value of an external accessory plugged in the earjack into an ADC value; a memory for storing ADC values of the external accessories; and a controller for converting a resistance value of the external accessory plugged in the earjack into an ADC value by controlling the ADC section, determining what type of external accessory plugged in the earjack by comparing the converted ADC value with the ADC values stored in the memory, and performing a function of the plugged-in external accessory via a corresponding pin of the earjack.
REFERENCES:
patent: 5783926 (1998-07-01), Moon et al.
patent: 5842045 (1998-11-01), Nakamura
patent: 6069960 (2000-05-01), Mizukami et al.
patent: 6295519 (2001-09-01), Wagner et al.
patent: 6742061 (2004-05-01), Hellberg
patent: 6965950 (2005-11-01), Nagasawa et al.
patent: 2002/0099878 (2002-07-01), Henrie et al.
patent: 0 861 009 (1998-08-01), None
patent: WO 01/19060 (2001-03-01), None
patent: WO0165827 (2001-09-01), None
Chang Yean-Hsi
Roylance Abrams Berdo & Goodman LLP
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