公开(公告)号：WO2021077001A1

公开(公告)日：2021-04-22

申请号：PCT/US2020/056134

申请日：2020-10-16

Applicant: TRUSTEES OF DARTMOUTH COLLEGE

Inventor： GONG, Jun ,  SEYED, Alemayehu ,  YANG, Xing-Dong

IPC: H01F38/14 ,  H02J5/00 ,  H01F38/00 ,  H01F27/42

Abstract: A contact-based inductive sensing technique for contextual interactions on interactive fabrics is described. The technique recognizes conductive objects (mainly metallic) that are commonly found in households and workplaces, such as keys, coins, and electronic devices. An apparatus includes an array of a plurality of six by six spiral-shaped coils including conductive thread, sewn onto a four-layer fabric structure. The coil shape parameters were determined based on maximizing the sensitivity based on a new inductance approximation formula. Through a ten-participant study, the performance of sensing technique across 27 common objects was evaluated. A 93.9% real-time accuracy for object recognition resulted.

公开(公告)号：WO2020076923A1

公开(公告)日：2020-04-16

申请号：PCT/US2019/055355

申请日：2019-10-09

Applicant: TRUSTEES OF DARTMOUTH COLLEGE

Inventor： GONG, Jun ,  YANG, Xing-Dong

IPC: G01B7/00 ,  G01B7/02 ,  G01B7/04 ,  G01B7/30 ,  G01V3/08 ,  G01V3/10 ,  G01V3/30 ,  G01V3/34

Abstract: Aspects of the disclosure provide a sensing apparatus including a sensing device, a memory, and processing circuitry. The sensing device includes resonators having respective resonant frequencies. The resonators include an array of inductive coils positioned on a surface of the apparatus. The sensing device can output a signal indicating changes of the resonant frequencies caused by presence of an object proximate to the surface. The memory stores reference signals corresponding to reference objects. Each reference signal indicates changes of the resonant frequencies caused by the respective reference object proximate to the surface. The processing circuitry can receive, from the sensing device, a particular signal indicating changes of the resonant frequencies caused by presence of a particular object proximate to the surface. The processing circuitry compares the particular signal with the stored reference signals of the reference objects to determine an identity of the particular object.

公开(公告)号：WO2021076889A1

公开(公告)日：2021-04-22

申请号：PCT/US2020/055984

申请日：2020-10-16

Applicant: TRUSTEES OF DARTMOUTH COLLEGE

Inventor： XU, Zheer ,  GONG, Jun ,  BI, Xiaojun ,  YANG, Xingdong

IPC: G06F3/0488 ,  G06F3/01 ,  G06F3/02 ,  G06F3/023 ,  G06F3/033 ,  G06F17/22

Abstract: The present disclosure relates to a system for eyes-free text entry. The system may include a wearable device having a display and processing circuitry configured to receive a haptic input provided to a keyboard mounted on a finger of a user, the haptic input being an indication of an alphabetical letter, generate a list of candidate words based on the received haptic input, each candidate word of the list of candidate words being associated with a probability thereof, display the generated list of candidate words to the user via the display of the wearable device, receive a selection of a particular candidate word of the list of candidate words, and append the particular candidate to a present sentence structure, wherein the keyboard has a layout based on a spatial model reflecting spatial awareness, by the user, of key locations on the finger.