PATENT CLAIM ANALYSIS

Application Number: 15983864
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["367", "095000"]

Abstract:
The present invention concerns a method and apparatus for the modulation of an acoustic field for providing tactile sensations. A method of creating haptic feedback using ultrasound is provided. The method comprises the steps of generating a plurality of ultrasound waves with a common focal point using a phased array of ultrasound transducers, the common focal point being a haptic feedback point, and modulating the generation of the ultrasound waves using a waveform selected to produce little or no audible sound at the haptic feedback point.

Claim (Index 35):
A method comprising:\n selecting a plurality of control points to define at least one part of a three-dimensional virtual shape in a volume occupied by an acoustic field by: i) producing the acoustic field from a transducer array having known relative positions and orientations; ii) defining the plurality of control points wherein each of the plurality of control points have a known spatial relationship relative to the transducer array; iii) assigning an amplitude to each of the plurality of control points; iv) computing a matrix containing elements which represent, for each of the plurality of control points, the effect that producing a modeled acoustic field having the assigned amplitude with a particular phase at that control point has on the consequential amplitude and phase of the modeled acoustic field at the other control points; v) calculating a plurality of eigenvectors of the matrix, each of the plurality of eigenvectors representing a set of relative phases and relative amplitudes of the modeled acoustic field at each of the plurality of control points; and vi) selecting one of the set of phases and relative amplitudes of the modeled acoustic field and operating the transducer array to cause at least one transducer to output an acoustic wave having an initial amplitude and phase such that the phases and amplitudes of the resultant acoustic field at the control points correspond to the phases and relative amplitudes of the selected set of phases and relative amplitudes of the modeled acoustic field.

Metadata:
- Claim Count in Document: 89.0
- Percentile: 93.0
- Lexical Diversity: 1.71698
- Patent Class: 367.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14889128', '15432289', '15966213', '14149518', '14916179']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5660133058697508
- 35 USC 102 Novelty (BERT): 0.5556179730383125
- Combined Prediction Score: 0.5649737725866071
- Mean Citation Score: 243.565688
- Max Citation Score: 412.95502
- Similarity Product: 386.0545848021817

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test