US 12,111,968 B2
Haptic feedback system
Wooseup Youm, Daejeon (KR); Hye Jin Kim, Daejeon (KR); YuLim Min, Daejeon (KR); Yun-Jeong Kim, Daejeon (KR); Hanbit Jin, Daejeon (KR); and Chan-Hwa Hong, Daejeon (KR)
Assigned to ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Oct. 27, 2022, as Appl. No. 18/050,373.
Claims priority of application No. 10-2021-0164808 (KR), filed on Nov. 25, 2021; and application No. 10-2022-0102190 (KR), filed on Aug. 16, 2022.
Prior Publication US 2023/0176652 A1, Jun. 8, 2023
Int. Cl. G06F 3/01 (2006.01)
CPC G06F 3/016 (2013.01) 18 Claims
OG exemplary drawing
 
1. A haptic waveform storage system comprising:
a sensor configured to measure a target object to generate a sensing signal including tactile texture information;
a waveform extraction unit configured to extract a basic frequency and an envelope from the sensing signal and generate haptic waveform information including information about the basic frequency and the envelope; and
a library storage unit configured to store the haptic waveform information,
wherein the waveform extraction unit is configured to set a reciprocal number of the basic frequency as a basic period and extract a point having highest intensity from the sensing signal every basic period to extract the envelope.