Side-tone control within a telecommunication instrument
First Claim
1. A method for providing side-tone control for a telecommunication instrument, comprising the steps of:
- measuring an energy of an uplink signal and an energy of a downlink signal;
selecting at least one amplifier parameter for controlling a transfer function of a side-tone amplifier based on said energy of said uplink signal and said energy of said downlink signal;
applying said amplifier parameters to said side-tone amplifier; and
adding an output of said side-tone amplifier to said downlink signal to produce an output signal.
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Accused Products
Abstract
A side-tone control unit for a telecommunication instrument is configured to include a side-tone amplifier having a transfer function selectively controlled in accordance with a set of amplifier parameters, and a side-tone controller, coupled to the side-tone amplifier, for selectively applying the set of amplifier parameters to the side-tone amplifier based on the detected energy of an uplink signal and the detected energy of a downlink signal. The side tone controller can select a particular set of amplifier parameters by indexing a table in accordance with quantized values of the detected uplink signal energy and the detected downlink signal energy.
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Citations
14 Claims
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1. A method for providing side-tone control for a telecommunication instrument, comprising the steps of:
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measuring an energy of an uplink signal and an energy of a downlink signal;
selecting at least one amplifier parameter for controlling a transfer function of a side-tone amplifier based on said energy of said uplink signal and said energy of said downlink signal;
applying said amplifier parameters to said side-tone amplifier; and
adding an output of said side-tone amplifier to said downlink signal to produce an output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A side-tone control unit, comprising:
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a side-tone amplifier including a transfer function selectively controlled in accordance with at least one amplifier parameter;
a side-tone controller coupled to said side-tone amplifier, for selectively applying said at least one amplifier parameter to said side-tone amplifier based on a detected energy of an uplink signal and a detected energy of a downlink signal; and
a summer for adding an output of said side-tone amplifier to said downlink signal to produce an output signal. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification