APPARATUS AND METHOD FOR REDUCING TDMA NOISE IN TERMINAL
First Claim
1. An apparatus for reducing Time Division Multiple Access (TDMA) noise in a terminal transceiving a wireless signal in a TDMA scheme, the apparatus comprising:
- an interface unit in which an output accessory is mounted;
an audio processor including a virtual ground, configured to transceive an audio signal to and from the output accessory through the interface unit;
a switch unit provided between the interface unit and the audio processor, configured to switch such that aground terminal of the interface unit is connected to one of a real ground or a virtual ground of the audio processor; and
a controller configured to control the switch unit to connect the ground terminal of the interface unit to the virtual ground when a call function using the output accessory is activated, andwherein the switch unit is configured by two or more switches which are connected to each other in a parallel connection.
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Abstract
An apparatus for reducing TDMA noise in a terminal transceiving a wireless signal in a TDMA scheme, includes an interface unit in which an output accessory is mounted, an audio processor including a virtual ground and transceiving an audio signal to and from an output accessory through the interface unit, a switch unit provided between the interface unit and the audio processor and switching such that a ground terminal of the interface unit is connected to one of a real ground or a virtual ground of the audio processor, and a controller controlling the switch unit to connect the ground terminal of the interface unit to the virtual ground when a call function using the output accessory is activated, in which the switch unit is configured by two or more switches which are connected to each other in a parallel connection.
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Citations
20 Claims
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1. An apparatus for reducing Time Division Multiple Access (TDMA) noise in a terminal transceiving a wireless signal in a TDMA scheme, the apparatus comprising:
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an interface unit in which an output accessory is mounted; an audio processor including a virtual ground, configured to transceive an audio signal to and from the output accessory through the interface unit; a switch unit provided between the interface unit and the audio processor, configured to switch such that aground terminal of the interface unit is connected to one of a real ground or a virtual ground of the audio processor; and a controller configured to control the switch unit to connect the ground terminal of the interface unit to the virtual ground when a call function using the output accessory is activated, and wherein the switch unit is configured by two or more switches which are connected to each other in a parallel connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of reducing Time Division Multiple Access (TDMA) noise in a terminal including a radio frequency communication unit transceiving a wireless signal in a TDMA scheme, an interface unit in which an output accessory is mounted, an audio processor including a virtual ground and transceiving an audio signal to and from the output accessory through the interface unit, and a switch unit provided between the interface unit and the audio processor and switching such that a ground terminal of the interface unit is connected to one of a real ground or a virtual ground of the audio processor, the method comprises:
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controlling the switch unit to connect the ground terminal of the interface unit to the virtual ground of the audio processor when a call function using the output accessory is activated, wherein the switch unit is configured by at least two switches which are connected to each other in parallel. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification