Invention Grant
- Patent Title: Acoustic transducers in haptic systems
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Application No.: US15623516Application Date: 2017-06-15
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Publication No.: US10531212B2Publication Date: 2020-01-07
- Inventor: Benjamin John Oliver Long , Thomas Andrew Carter , Brian Kappus
- Applicant: ULTRAHAPTICS IP LTD.
- Applicant Address: GB Bristol
- Assignee: Ultrahaptics IP Ltd.
- Current Assignee: Ultrahaptics IP Ltd.
- Current Assignee Address: GB Bristol
- Agency: Koffsky Schwalb LLC
- Agent Mark I. Koffsky
- Main IPC: H04R29/00
- IPC: H04R29/00 ; H04R1/40 ; H04R3/12 ; H04R17/00 ; G06F3/01 ; G08B6/00

Abstract:
Described is a screen surface layer comprising a plurality of light-emitting pixels including a plurality of red pixels, a plurality of green pixels and a plurality of blue pixels; a transducer layer comprising a plurality of acoustic transducers, wherein the transducer layer is affixed below the screen surface layer; and a cover layer having a plurality of cylinder-shaped perforations, wherein the cover layer is affixed above the screen surface layer. In addition, an average “transducer model” describing a phasor distribution in space may be produced describing the output signal at the carrier frequency in the air at a known spatial offset from an averaged transducer. Further, phased array systems may have numerous individual transducer elements that will likely fail before the product incorporating the transducers reaches end-of-life. By detecting such failed transducers, the transducer array may function at peak performance by working around the missing transducer output.
Public/Granted literature
- US20170366908A1 Acoustic Transducers in Haptic Systems Public/Granted day:2017-12-21
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