Arrangement for activating and deactivating automatic noise cancellation (ANC) in a mobile station
First Claim
1. An arrangement for activating and deactivating automatic noise cancellation (ANC) in a mobile station, in which there is an ANC facility for cancelling background noise of an incoming audio signal and circuits for activating and deactivating ANC, characterized in that the arrangement includes an automatic circuit configuration for detecting a need for ANC, according to a selected criterion, which detection circuit configuration is arranged to automatically control the activation and deactivation of the ANC facility.
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Accused Products
Abstract
An arrangement for activating and deactivating automatic noise cancellation (ANC) in a mobile station, in which there are an ANC facility (3) for suppressing background noise in an incoming audio signal, as well as circuits for activating and deactivating the ANC, includes automatic detection (10) of the need for ANC according to a selected criterion, for example, a set noise level, the detection circuit configuration (10) being arranged to automatically control the activation and deactivation of the ANC facility (3).
14 Citations
7 Claims
- 1. An arrangement for activating and deactivating automatic noise cancellation (ANC) in a mobile station, in which there is an ANC facility for cancelling background noise of an incoming audio signal and circuits for activating and deactivating ANC, characterized in that the arrangement includes an automatic circuit configuration for detecting a need for ANC, according to a selected criterion, which detection circuit configuration is arranged to automatically control the activation and deactivation of the ANC facility.
Specification