Apparatus and method for preventing erroneous detection of jack
AssigneeSamsung Electronics Co., Ltd.
InventorsHo-Soo Seo, Mu-Sul Kim, Jung-Hyeong Lee
Life of this patent
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Abstract
An apparatus and method for preventing erroneous detection of a jack is provided. The apparatus includes a detection terminal configured to detect whether a jack plug of an earphone is inserted into the jack, a comparator configured to compare a voltage input from the detection terminal with a predetermined reference voltage and provide a comparison result signal to a baseband module, a resistor with a certain resistance value, being interposed between the detection terminal and the comparator to keep a voltage of a high signal not to be lowered than the predetermined reference voltage when the jack is conducted due to conductive particles flowed into the jack.
Claims20
An apparatus for preventing erroneous detection of a jack, the apparatus comprising:
- a detection terminal configured to detect whether a jack plug is inserted into the jack;
- a comparator configured to compare voltage input from the detection terminal with a predetermined reference voltage and output a comparison result signal to a baseband module;
- and
- a resistor with a certain resistance value, being interposed between the detection terminal and the comparator to keep a voltage of a high signal not to be lowered than the predetermined reference voltage when unintended conductive material contacts the detection terminal.
A method of preventing erroneous detection of a jack, the method comprising:
- comparing voltage input from a detection terminal with a predetermined reference voltage;
- and
- providing a comparison result signal to a baseband module,
- wherein a resistor having a certain resistance value is interposed between the detection terminal and the comparator to keep a voltage of a high signal not to be lowered than the predetermined reference voltage when unintended conductive material contacts the detection terminal.
An electronic device equipped with a jack for receiving a jack plug, the electronic device comprising:
- a detection terminal configured to detect whether the jack plug is inserted into the jack;
- and
- a comparator configured to compare a voltage input from the detection terminal with a predetermined reference voltage and provide a comparison result signal to a baseband module,
- a resistor with a certain resistance value being interposed between the detect end and the comparator to keep a voltage of a high signal not to be lowered than the predetermined reference voltage when the jack is conducted due to conductive particles inserted into the jack.
Dependencies are inferred from the claim text.