Signal processor
AssigneeNXP B.V.
InventorTemujin Gautama
Life of this patent
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Abstract
One example discloses a signal processor, including: a signal input having an input bandwidth; a first transducer output; a second transducer output; a filter network coupled to the signal input, the first transducer output and the second transducer output; wherein the filter network is configured to output a first portion of the input bandwidth on the first transducer output and a second portion of the input bandwidth on the second transducer output; and a control module coupled to the filter network and configured to adjust the first and second portions of the input bandwidth in response to signal degradation on the first transducer output.
Claims18
A signal processor, comprises:
- a signal input having an input bandwidth;
- a first transducer output;
- a second transducer output;
- a filter network coupled to the signal input, the first transducer output and the second transducer output;
- wherein the filter network is configured to output a first portion of the input bandwidth on the first transducer output and a second portion of the input bandwidth on the second transducer output;
- a control module coupled to the filter network and configured to adjust the first and second portions of the input bandwidth in response to signal degradation on the first transducer output;
- wherein the filter network includes a high-pass filter configured to output the first portion of the input bandwidth and a low-pass filter configured to output the second portion of the input bandwidth;
- wherein the first and second portions of the input bandwidth are separated by a cross-over frequency;
- and
- wherein the control module is configured to adjust the cross-over frequency.
An article of manufacture comprises at least one non-transitory, tangible machine readable storage medium containing executable machine instructions for signal processing, the instructions comprising:
- outputting a first portion of an input bandwidth on a first transducer output and a second portion of the input bandwidth on a second transducer output;
- adjusting the first and second portions of the input bandwidth in response to signal degradation on the first or second transducer output;
- wherein an interface between the first and second portions of the input bandwidth is a cross-over frequency;
- wherein adjusting further includes:
- reducing the cross-over frequency until the cross-over frequency reaches a minimum cross-over frequency, or until signal degradation on the first transducer output is detected;
- and
- increasing the cross-over frequency until signal degradation on the first transducer output is not detected;
- whereby the cross-over frequency converges to a nominal frequency.
A method for signal processing, comprising:
- outputting a first portion of an input bandwidth on a first transducer output and a second portion of the input bandwidth on a second transducer output;
- adjusting the first and second portions of the input bandwidth in response to signal degradation on the first transducer output;
- wherein an interface between the first and second portions of the input bandwidth is a cross-over frequency;
- wherein adjusting further includes:
- reducing the cross-over frequency until the cross-over frequency reaches a minimum cross-over frequency, or until signal degradation on the first transducer output is detected;
- and
- increasing the cross-over frequency until signal degradation on the first transducer output is not detected;
- whereby the cross-over frequency converges to a nominal frequency.
Dependencies are inferred from the claim text.