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US 2019/0378385 A1Published application
Tactile transducer with digital signal processing for improved fidelity
AssigneeTaction Technology, Inc.
InventorSilmon James Biggs
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Abstract
The apparatus and methods of the present invention provide improved accuracy of response for a tactile transducer included in a body-mounted device such as a headphone, VR/AR headset or similar device. Accuracy is increased through the application of digital signal processing, such as with Infinite Impulse Response filters or Finite Impulse Response filters.
Claims20
A method for altering the frequency response of a tactile transducer included in a headphone, said method comprising:
- digital signal processing of the signal to be produced by said tactile transducer, said processing comprising filters with a plurality of virtual filter poles;
- where the pass-band of said digital processing lies below 500 Hz;
- and where said digital signal processing is employed to create at least a notch filter within the pass band to reduce at least one natural resonance of said tactile transducer.
A system for altering the frequency response of a tactile transducer included in a headphone, said method comprising:
- at least a tactile transducer comprising at least a magnet, at least coil of conducive wire, and a plurality of flexures connecting at least a subassembly comprising said at least a magnet and a subassembly comprising at least said coil, where said at least a tactile transducer is attached to at least an earcup of said headphone;
- at least a microprocessor configured to process digital signals comprising the signal to be produced by said tactile transducer, said processing comprising filters with a plurality of virtual filter poles;
- where the pass-band of said digital processing lies below 500 Hz;
- and where said digital signal processing is employed to create at least a notch filter within the pass band to reduce at least one natural resonance of said tactile transducer.
1 more element
Dependencies are inferred from the claim text.