Patent · US Active

Encoding/decoding apparatuses and methods for encoding/decoding vibrotactile signals

US11113934B2 · kind B2 · utility

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8References

18Claims

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Assignee

TECHNISCHE UNIVERSITÄT MÜNCHEN · DE

Inventors

Andreas Noll · Waldenbuch, DE
Basak Gülecyüz · Munich, DE
Eckehard Steinbach · Munich, DE

Key dates

Filing date	Mar 27, 2020
Grant date	Sep 7, 2021
Priority date	—
Expiry date	Mar 27, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH03M7/6047
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An encoding apparatus for encoding a vibrotactile signal includes a first transforming unit configured to perform a discrete wavelet transform of the signal, a second transforming unit configured to generate a frequency domain representation of the signal, a psychohaptic model unit configured to generate at least one quantization control signal based on the generated frequency domain representation of the sampled signal and on a predetermined perceptual model based on human haptic perception, a quantization unit configured to quantize wavelet coefficients resulting from the performed discrete wavelet transform and adapted by the quantization control signal, a compression unit configured to compress the quantized wavelet coefficients, and a bitstream generating unit configured to generate a bitstream corresponding to the encoded signal based on the compressed quantized wavelet coefficients. The subject matter described herein also includes a corresponding decoding unit, an encoding method and a decoding method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.