Method and apparatus for indicating low signal quality in a digitized audio environment
First Claim
1. A method of audibly indicating signal quality of a digital audio data signal, said method comprising the steps of:
- (1) receiving a digital audio data signal;
(2) determining a quality of said digital audio data signal; and
(3) injecting an audible cue into said digital audio data signal if said digital audio signal is determined to be below a first threshold.
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Accused Products
Abstract
In accordance with the present invention, the quality of a received digital signal is determined by the receiver, such as by observing the received signal strength indication (RSSI) and/or the bit error rate (BER). When the quality drops below a first threshold, the receiver injects white noise into the reproduced audio signal to simulate the noise that typically accompanies an analog wireless signal of low quality. The amount of injected white noise may be increased as the signal quality continues to decrease beyond the first threshold. Preferably, at a second threshold at which the receiver can no longer reassemble the received signal, the white noise is muted to audibly indicate to the user that the signal has been lost.
16 Citations
23 Claims
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1. A method of audibly indicating signal quality of a digital audio data signal, said method comprising the steps of:
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(1) receiving a digital audio data signal;
(2) determining a quality of said digital audio data signal; and
(3) injecting an audible cue into said digital audio data signal if said digital audio signal is determined to be below a first threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wireless digital receiver comprising:
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a circuit for receiving a digital audio data signal;
an audible cue signal generator;
a circuit for determining a signal quality of said digital audio data signal;
a circuit for converting said received audio data signal into an audio signal; and
a circuit for injecting an audible cue from said audible cue generating circuit into said audio signal as a function of said signal quality determined by said circuit for determining signal quality. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification