Patents by Inventor Chung Wen Lo

Chung Wen Lo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11969243
    Abstract: A wearable device is illustrated. The wearable device has a body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The wearable device is suitable for wearing on a movable part of a user. The light emitting unit is disposed on an inner side of the body, wherein the light emitting unit emits a light beam illuminating at least a portion of the movable part. The light sensing unit operatively senses the light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine a function that corresponds to an action of the user.
    Type: Grant
    Filed: April 18, 2023
    Date of Patent: April 30, 2024
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chung-Wen Lo
  • Publication number: 20230248267
    Abstract: A wearable device is illustrated. The wearable device has a body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The wearable device is suitable for wearing on a movable part of a user. The light emitting unit is disposed on an inner side of the body, wherein the light emitting unit emits a light beam illuminating at least a portion of the movable part. The light sensing unit operatively senses the light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine a function that corresponds to an action of the user.
    Type: Application
    Filed: April 18, 2023
    Publication date: August 10, 2023
    Inventors: REN-HAU GU, CHUNG-WEN LO
  • Patent number: 11672444
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: June 13, 2023
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chung-Wen Lo
  • Publication number: 20220142512
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Application
    Filed: January 24, 2022
    Publication date: May 12, 2022
    Inventors: REN-HAU GU, CHUNG-WEN LO
  • Patent number: 11272862
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: March 15, 2022
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chung-Wen Lo
  • Publication number: 20200405196
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 31, 2020
    Inventors: REN-HAU GU, CHUNG-WEN LO
  • Patent number: 10806378
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 20, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chung-Wen Lo
  • Publication number: 20200100708
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventors: REN-HAU GU, CHUNG-WEN LO
  • Patent number: 10524700
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: January 7, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chung-Wen Lo
  • Publication number: 20190216369
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Application
    Filed: March 25, 2019
    Publication date: July 18, 2019
    Inventors: REN-HAU GU, CHUNG-WEN LO
  • Patent number: 10285627
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: May 14, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chung-Wen Lo
  • Patent number: 9753550
    Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface or any reference object with particular markers. The precise coding reference data can be generated by detecting surface features of the working surface.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 5, 2017
    Assignee: PixArt Imaging Inc.
    Inventors: Chung-Wen Lo, Hsin-Chia Chen
  • Publication number: 20160305875
    Abstract: An action recognition system is illustrated. The action recognition system has an annular body, at least one light emitting unit, at least one light sensing unit and an action recognition module. The annular body is worn on a movable part of a user. One end of the light emitting unit is exposed on an inner side of the annular body, wherein the light emitting unit emits a first light beam illuminating at least a portion of the movable part. One end of the light sensing unit is exposed on the inner side of the annular body. The light sensing unit operatively senses a second light beam reflected by the at least portion of the movable part and generates a light sensing signal. The action recognition module is configured to operatively determine an action of the user according to the light sensing signal.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 20, 2016
    Inventors: REN-HAU GU, CHUNG-WEN LO
  • Patent number: 9395858
    Abstract: There is provided an operating method of a capacitive finger navigation device including the steps of: calculating a touch coordinate according to a predetermined position coordinate and associated detected variation of each of a plurality of detecting cells when the associated detected variations of the detecting cells exceed a threshold; mapping the touch coordinate to a touch position associated with a touch surface; entering a relative motion mode when the touch position is in a first area; and entering an absolute coordinate mode when the touch position is in a second area.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: July 19, 2016
    Assignee: Pixart Imaging Inc.
    Inventors: Chung-Wen Lo, Tom Murphy, Hsin-Chia Chen
  • Patent number: 9389742
    Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: July 12, 2016
    Assignee: Pixart Imaging Inc.
    Inventors: Ken Crandall, Chung-Wen Lo, David Touney, Tom Murphy, Hsin-Chia Chen
  • Publication number: 20160170516
    Abstract: There is provided a capacitive touch device including a touch panel, a detection circuit and a processing unit. The touch panel includes a plurality of drive electrodes and a plurality of receiving electrodes configured to form a coupling electric field with an external touch panel, and the receiving electrodes are respectively configured to output a detection signal. The detection circuit is coupled to one of the receiving electrodes and configured to modulate the detection signal with two signals to generate two detection components. The processing unit is configured to obtain a phase value according to the two detection components to accordingly decode transmission data.
    Type: Application
    Filed: December 10, 2014
    Publication date: June 16, 2016
    Inventors: KEN CRANDALL, CHUNG-WEN LO, DAVID TOUNEY, TOM MURPHY, HSIN-CHIA CHEN
  • Patent number: 9256332
    Abstract: There is provided a concurrent driving capacitive touch sensing device including a drive end, a capacitive sensing matrix and a detection end. The capacitive sensing matrix includes a plurality of drive electrodes and sense electrodes crossing to each other. The drive end is configured to concurrently input cycle data of encoded and modulated drive signals into the drive electrodes. The detection end is coupled to one of the sense electrodes and configured to acquire a predetermined number of sampled values corresponding to the cycle data associated with the coupled sense electrode and generate a response signal to the drive end according to the sampled values, wherein the drive end resends the cycle data according to the response signal.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: February 9, 2016
    Assignee: Pixart Imaging Inc.
    Inventors: Chung-Wen Lo, Ken Crandall, Hsin-Chia Chen, Raman Sahgal
  • Publication number: 20160026283
    Abstract: There is provided an operating method of a capacitive finger navigation device including the steps of: calculating a touch coordinate according to a predetermined position coordinate and associated detected variation of each of a plurality of detecting cells when the associated detected variations of the detecting cells exceed a threshold; mapping the touch coordinate to a touch position associated with a touch surface; entering a relative motion mode when the touch position is in a first area; and entering an absolute coordinate mode when the touch position is in a second area.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 28, 2016
    Inventors: CHUNG-WEN LO, TOM MURPHY, HSIN-CHIA CHEN
  • Publication number: 20150268758
    Abstract: There is provided a concurrent driving capacitive touch sensing device including a drive end, a capacitive sensing matrix and a detection end. The capacitive sensing matrix includes a plurality of drive electrodes and sense electrodes crossing to each other. The drive end is configured to concurrently input cycle data of encoded and modulated drive signals into the drive electrodes. The detection end is coupled to one of the sense electrodes and configured to acquire a predetermined number of sampled values corresponding to the cycle data associated with the coupled sense electrode and generate a response signal to the drive end according to the sampled values, wherein the drive end resends the cycle data according to the response signal.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 24, 2015
    Applicant: PIXART IMAGING INC.
    Inventors: CHUNG-WEN LO, KEN CRANDALL, HSIN-CHIA CHEN, RAMAN SAHGAL
  • Publication number: 20150262361
    Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface or any reference object with particular markers. The precise coding reference data can be generated by detecting surface features of the working surface.
    Type: Application
    Filed: December 17, 2014
    Publication date: September 17, 2015
    Inventors: CHUNG-WEN LO, HSIN-CHIA CHEN