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Haptic communication system using cutaneous actuators for simulation of continuous human touch

專利號
US10867526B2
公開日期
2020-12-15
申請人
Facebook, Inc.（US CA Menlo Park）
發(fā)明人
Ali Israr; Freddy Abnousi; Frances Wing Yee Lau
IPC分類
H04B3/36; G09B21/00; G01L5/00; G06N20/00; G06N3/04; G06N3/08; G10L13/00; G10L21/02; G08B6/00; G09B21/04; G10L15/02; G10L15/22; G10L21/0272; G06F3/01; G06F3/16; G10L25/18; G10L25/48; G10L19/00; G10L15/16; G10L21/06
技術(shù)領(lǐng)域
haptic,cutaneous,actuator,actuators,signals,speech,in,phoneme,may,vibrations
地域： CA CA Menlo Park

摘要

A haptic communication device includes an array of cutaneous actuators to generate haptic sensations corresponding to actuator signals received by the array. The haptic sensations include at least a first haptic sensation and a second haptic sensation. The array includes at least a first cutaneous actuator to begin generating the first haptic sensation at a first location on a body of a user at a first time. A second cutaneous actuator begins generating the second haptic sensation at a second location on the body of the user at a second time later than the first time.

說明書

In one embodiment, the peak selector 1019 sets portions of the frequency domain spectrum that is outside the frequency range of interest (e.g., 200 Hz-8.4 kHz) to zero. Then, a frequency location of the highest peak magnitude (i.e., a first dominant frequency) in the frequency domain spectrum is identified. After the location is identified, a window surrounding the peak by +/?400 Hz is set to zero, so that any relative peak magnitude within 400 Hz of the identified peak is ignored. The next highest peak (i.e., a second dominant frequency) is identified, and a window surrounding the next highest peak magnitude by +/?400 Hz is set to zero. The same process is repeated to identify a predetermined number of peaks or dominant frequencies. FIG. 10D illustrates five peaks N1 through N5 of the dominant frequencies, according to one embodiment. The frame number and the corresponding dominant frequencies and amplitudes in the frame are sent to the signal generator 800 as the speech signal 216 by the network communication module 1024.

The frequency domain spectrum is divided into a number of channels (e.g., 32 channels) between the lower and upper cutoff frequencies (e.g., 200 Hz and 8.4 kHz, respectively). In one embodiment, the channels are linearly spaced below 1 kHz and spaced logarithmically above 1 kHz. Each peak identified above is associated with the channel with the closest center frequency.

權(quán)利要求

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