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US 2016/0097855 A1Published application
Acoustic apparatus with ultrasonic detector
AssigneeKnowles Electronics, LLC
InventorsSarmad Qutub, William Ryan, Martin Volk, Wade Conklin
Life of this patent
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Abstract
In accordance with one aspect of the disclosure, an acoustic apparatus is provided included a transducer, a signal generator, a buffering module, and a proximity detection module. A switching module is coupled to the transducer, signal generator, the buffering module, and the proximity detection module.
Claims16
An acoustic apparatus, comprising:
- a transducer;
- a signal generator;
- a buffering module;
- a proximity detection module;
- a switching module coupled to the transducer, the signal generator, the buffering module, and the proximity detection module;
- wherein in a first mode, the switching module allows signals from the signal generator to drive the transducer to produce ultrasonic signals, the ultrasonic signals being reflected by an object as reflected ultrasonic signals;
- wherein in a second mode, the switching module allows the reflected signals that are received by the transducer to be input to the proximity detection module;
- wherein in a third mode, the proximity detection module is configured to determine a distance parameter that is related to a distance from the apparatus to the object;
- wherein in a fourth mode the switching module allows human audible signals that are received at the transducer to be input to the buffering module.
6 more elements
A method, comprising:
- routing signals from a signal generator to a transducer, the signals effective to drive the transducer to produce ultrasonic signals, the ultrasonic signals being reflected by an object as reflected ultrasonic signals;
- routing the reflected signals that are received by the transducer to a proximity detection module;
- based upon the reflected signals, determining a distance parameter that is related to a distance from a microphone to the object;
- routing human audible signals that are received at the transducer to a buffering module.
1 more element
Dependencies are inferred from the claim text.