Automatic Sidetone Control
First Claim
1. An automatic sidetone controller for a telecom device having a transmit (TX) channel, a receive (RX) channel, and a signal processor for generating a sidetone signal by coupling a portion of a signal transmitted on the TX channel onto the RX channel via a sidetone path, the controller comprising:
- logic encoded in tangible media for execution in the signal processor and operable when executed to;
detect when the TX channel of the device has been placed in an active mode and to enable the sidetone path in response thereto; and
,detect when the TX channel of the device has been placed in an inactive mode and to disable the sidetone path in response thereto.
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Accused Products
Abstract
An automatic sidetone controller for a digital telecom device, such as a headset or headset adapter having a transmit (TX) channel, a receive (RX) channel, and circuitry for generating a sidetone signal by coupling a portion of a signal on the TX channel onto the RX channel via a sidetone path, is operable to detect when the TX channel of the device is active and inactive and to respectively activate and deactivate the sidetone path in response thereto without need for manual intervention by the user.
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Citations
22 Claims
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1. An automatic sidetone controller for a telecom device having a transmit (TX) channel, a receive (RX) channel, and a signal processor for generating a sidetone signal by coupling a portion of a signal transmitted on the TX channel onto the RX channel via a sidetone path, the controller comprising:
logic encoded in tangible media for execution in the signal processor and operable when executed to; detect when the TX channel of the device has been placed in an active mode and to enable the sidetone path in response thereto; and
,detect when the TX channel of the device has been placed in an inactive mode and to disable the sidetone path in response thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An adapter for coupling a headset to a digital host device, the adapter comprising:
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a transmit (TX) channel; a receive (RX) channel; means for respectively coupling TX and RX channels of the headset to the TX and RX channels of the adapter; means for coupling the adapter in full duplex communication with a host device via a digital communication protocol, including means for generating a sidetone signal in the headset by coupling at least a portion of a signal transmitted on the TX channel onto the RX channel via a sidetone path; and
,an automatic sidetone controller, comprising; means for detecting when the TX channel of the device has been placed in an active mode and for enabling the sidetone path in response thereto; and
,means for detecting when the TX channel of the device has been placed in an inactive mode and for disabling the sidetone path in response thereto. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A telephony system, comprising:
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a digital host device disposed in communication with the internet and operable to establish full duplex telecommunication between a user of the system and a far end respondent via a voice-over-internet protocol (VOIP); and
,a telecom device coupled in full duplex communication with the host device via a digital communication protocol, the telecom device comprising; a transmit (TX) channel; a receive (RX) channel; a first signal converter for converting a digital RX signal received from the host device to an analog RX signal; a second signal converter for converting an analog TX signal received from the user to a digital TX signal; a digital signal processor (DSP) adapted to generate a sidetone signal by coupling a portion of a signal transmitted on the TX channel onto the RX channel via a sidetone path; and
,an automatic sidetone controller, comprising logic encoded in tangible media for execution in the DSP and operable when executed to; detect when the TX channel of the device has been placed in an active mode and to enable the sidetone path in response thereto; and
,detect when the TX channel of the device has been placed in an inactive mode and to disable the sidetone path in response thereto. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method for controlling sidetone in a telecom device having a microphone coupled to a transmit (TX) channel, a receiver coupled to a receive (RX) channel, and circuitry for generating a sidetone signal by feeding at least a portion of a signal generated by the microphone and transmitted on the TX channel back onto the RX channel via a sidetone path, the method comprising:
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detecting when the TX channel has been placed in an active mode and enabling the sidetone path in response thereto; and
,detecting when the TX channel has been placed in an inactive mode and disabling the sidetone path in response thereto. - View Dependent Claims (22)
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Specification