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US 9,807,489 B2Granted
Method for noise removal of ear phone in portable terminal and apparatus thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsMu Seon Im, Yong Seong Jeong, Hyung Woo Park
Life of this patent
Estimating the term…
Abstract
Provided is a method of removing an earphone noise of a portable terminal includes: recognizing a connection of an earphone through an interface unit; applying power to a mike bias port in case the earphone is recognized; sensing a signal which indicating a detachment of the earphone from the interface unit during applying power to the mike bias port; and discharging the power of the mike bias port when the detachment occurs.
Claims16
An apparatus comprising:
- interface circuitry including a first electrical contact and a second electrical contact, the first electrical contact to detect a connection with at least a portion of an electronic device external to the apparatus, and the second electrical contact to supply a voltage generated by the apparatus to the electronic device in response to the electronic device being connected through the first electrical contact;
- and
- at least one switch to couple the second electrical contact with an electrical ground of the apparatus such that at least part of the voltage remaining at the second electrical contact is discharged therefrom in response to the electronic device being detached from the first electrical contact.
A method comprising:
- supplying, at a first electronic device including interface circuitry including a first electrical contact and a second electrical contact, a voltage to a second electronic device external to the first electronic device via the first electrical contact in response to detecting the second electronic device being connected;
- detecting attachment or detachment of the second electronic device from the first electronic device via the second electrical contact;
- and
- connecting the first electrical contact with an electrical ground of the first electronic device such that at least part of the voltage remaining at the first electrical contact is discharged therefrom in response to the detachment.
1 more element
Dependencies are inferred from the claim text.