Patents by Inventor Yuan-Tung Chen

Yuan-Tung Chen 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: 10755422
    Abstract: The present disclosure provides a tracking system and method thereof. The tracking system comprises a trackable device with an appearance including a feature pattern and a tracking device. The tracking device comprises an optical sensor module configured to capture a first image which covers the trackable device. The tracking device further comprises a processor coupled to the optical sensor module. The processor is configured to retrieve a region of interest (ROI) of the first image based on the feature pattern, and locate a position of each of a plurality of feature blocks in the ROI, where each feature block contains a portion of the feature pattern. The processor further calculates a pose data of the trackable object according to the positions of the feature blocks.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 25, 2020
    Assignee: HTC Corporation
    Inventors: Yuan-Tung Chen, Tzu-Chieh Yu
  • Patent number: 10742902
    Abstract: A tracking system is provided. The tracking system comprises a trackable device which comprises a first illuminating module and the first illuminating module emits an infrared (IR) light and a tracking device which comprises an optical sensing module and a processor. The optical module is configured to sense an IR spectrum to capture a first image and sense a visible spectrum to capture a second image, and the IR light is in the IR spectrum. The processor is coupled to the optical sensing module. The processor is configured to search in the first image a first region corresponding to the IR light, locate in the second image a second region associated with the first region in the first image, and calculate a spatial status of the trackable device according to the second region in the second image.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: August 11, 2020
    Assignee: HTC Corporation
    Inventors: Yuan-Tung Chen, Hsu-Hong Feng, Tzu-Yin Chang, Wei-Ta Wang, Tzu-Chieh Yu
  • Publication number: 20200211207
    Abstract: An object tracking method includes following steps: transmitting search information for searching for an object by a first processor during a search stage; receiving the search information and using a second processor to determine whether any of at least one accessory camera has captured an object image in the search stage. When the second processor determines that at least one of the at least one accessory camera has captured the object image, the second processor transmits notification information to the first processor and the first processor enters a tracking stage and transmits request information to the second processor. When the second processor receives the request information, the second processor performs one of the following: transmitting the object image to the first processor, wherein the first processor calculates an object pose according to the object image.
    Type: Application
    Filed: December 24, 2019
    Publication date: July 2, 2020
    Applicant: HTC Corporation
    Inventors: Yuan-Tung CHEN, Chih-Chien CHEN, I-Cheng SHIH, Su-Kang CHOU, Jyun-Jhong LIN
  • Patent number: 10649066
    Abstract: A positioning system and method thereof are provided in this disclosure. The positioning method includes steps of: emitting a radiation from a first electronic apparatus to a second electronic apparatus and starting to accumulate a time count; sensing the radiation on the second electronic apparatus and sending a first ultrasonic signal from the second electronic apparatus to the first electronic apparatus; sensing the first ultrasonic signal by a plurality of ultrasound sensors on the first electronic apparatus and calculating a plurality of first time periods started from the radiation is emitted until the first ultrasonic signal is sensed by the ultrasound sensors; calculating a plurality of first relative distances between the ultrasound sensors and a first ultrasound emitter on the second electronic apparatus; and locating a first relative position of the second electronic apparatus relative to the first electronic apparatus according to the first relative distances.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: May 12, 2020
    Assignee: HTC Corporation
    Inventors: Yuan-Tung Chen, Tzu-Chieh Yu
  • Patent number: 10642368
    Abstract: A body posture detection system includes an inertial measurement unit, at least two ultrasonic transceivers and a processor. The inertial measurement unit is configured to retrieve an orientation vector of a first portion of a human body. The ultrasonic transceivers are mounted on the first portion and a second portion of the human body respectively. The processor is configured to generate a candidate gesture range of the first portion according to the orientation vector. The processor is configured to measure a distance between the first portion and the second portion according to an ultrasound transmitted between the ultrasonic transceivers. The processor is further configured to determine a current gesture of the first portion from the candidate gesture range according to the distance.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: May 5, 2020
    Assignee: HTC Corporation
    Inventor: Yuan-Tung Chen
  • Patent number: 10620295
    Abstract: A positioning signal receiver that includes an electromagnetic wave receiver, a mechanical wave receiver and a processing circuit is provided. The electromagnetic wave receiver receives electromagnetic wave signals for indicating positions of positioning signal transmitters and for triggering the positioning signal transmitters to generate mechanical wave signals. The mechanical wave receiver receives the mechanical wave signals. The processing circuit is coupled to the electromagnetic wave receiver and the mechanical wave receiver and determines the positions of the positioning signal transmitters according to the first electromagnetic wave signals, determines signal transmission times of the mechanical wave signals and determines distances each between one of the positioning signal transmitters and the positioning signal receiver according to the signal transmission times.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: April 14, 2020
    Assignee: HTC Corporation
    Inventor: Yuan-Tung Chen
  • Patent number: 10600206
    Abstract: A tracking system and a method thereof are provided in this disclosure. The tracking method includes steps of: capturing first images of the physical environment by a first electronic device; extracting a plurality of first feature points from the first images; generating a plurality of map points according to the extracted first feature points; building a map of the physical environment according to the map points by the first electronic device; capturing a second image of the physical environment by a second electronic device; extracting second feature points of the second image and transmitting the second feature points to the first electronic device; and estimating a pose of the second electronic device according to the map and the received second feature points by the first electronic device.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: March 24, 2020
    Assignee: HTC Corporation
    Inventors: Yuan-Tung Chen, Shing-Chiao Yeh, Po-I Wu, Heng Ding, Kun-Chun Tsai
  • Patent number: 10564733
    Abstract: An operating method of a tracking system includes the following operations: obtaining a first relative movement vector of a client device by first movement detector; obtaining scale information related to distance; calculating a first actual movement vector of the client device according to the first relative movement vector and the scale information; and fusing, by a processor of a host device, the first relative movement vector, the scale information and the first actual movement vector to generate a 3D position of the client device.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 18, 2020
    Assignee: HTC Corporation
    Inventors: Hsin-Yu Lu, Li-Kang Weng, Kuang-Yu Pan, Yuan-Tung Chen
  • Patent number: 10475194
    Abstract: An object tracking method includes configuring a color of a first illuminating object to vary in a first pattern, capturing the first illuminating object according to a first color during a first time period, and capturing the first illuminating object according to a second color during a second time period after the first time period, wherein the second color is different from the first color.
    Type: Grant
    Filed: November 26, 2017
    Date of Patent: November 12, 2019
    Assignee: HTC Corporation
    Inventors: Yuan-Tung Chen, Tzu-Yin Chang, Hsu-Hong Feng
  • Patent number: 10467456
    Abstract: A tracking system includes a trackable device and a tracking device. The trackable device has a three-dimensional shape. The trackable device includes a first orientation sensor for sensing a first orientation of the trackable device. The tracking device is communicated with the trackable device. The tracking device includes a second orientation sensor, an image sensor and a processing circuit. The second orientation sensor is configured to sense a second orientation of the tracking device. The image sensor configured to capture an image. The processing circuit is coupled with the second orientation sensor and the image sensor. The processing circuit is operable to calculate a two-dimensional silhouette corresponding to the three-dimensional shape according to the first orientation and the second orientation, and utilize the two-dimensional silhouette to search the image captured by the image sensor for allocating coordinates of the trackable device within the image.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 5, 2019
    Assignee: HTC Corporation
    Inventors: Yuan-Tung Chen, Chieh-Yu Tseng
  • Patent number: 10416305
    Abstract: A positioning device includes an optical sensor, an ultrasonic transceiver and a processor. The optical sensor is configured to obtain a depth image. The ultrasonic transceiver is configured to send an ultrasound and receive an ultrasound reflection. The processor is configured to target a reflective surface in the depth image, recognize a salient feature corresponding to the reflective surface in the ultrasound reflection, estimate a distance between the positioning device and reflective the surface according to a first response time of the salient feature in the ultrasound reflection.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: September 17, 2019
    Assignee: HTC Corporation
    Inventor: Yuan-Tung Chen
  • Publication number: 20190026904
    Abstract: The present disclosure provides a tracking system and method thereof. The tracking system comprises a trackable device with an appearance including a feature pattern and a tracking device. The tracking device comprises an optical sensor module configured to capture a first image which covers the trackable device. The tracking device further comprises a processor coupled to the optical sensor module. The processor is configured to retrieve a region of interest (ROI) of the first image based on the feature pattern, and locate a position of each of a plurality of feature blocks in the ROI, where each feature block contains a portion of the feature pattern. The processor further calculates a pose data of the trackable object according to the positions of the feature blocks.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 24, 2019
    Inventors: Yuan-Tung CHEN, Tzu-Chieh YU
  • Publication number: 20180332240
    Abstract: A tracking system is provided. The tracking system comprises a trackable device which comprises a first illuminating module and the first illuminating module emits an infrared (IR) light and a tracking device which comprises an optical sensing module and a processor. The optical module is configured to sense an IR spectrum to capture a first image and sense a visible spectrum to capture a second image, and the IR light is in the IR spectrum. The processor is coupled to the optical sensing module. The processor is configured to search in the first image a first region corresponding to the IR light, locate in the second image a second region associated with the first region in the first image, and calculate a spatial status of the trackable device according to the second region in the second image.
    Type: Application
    Filed: May 14, 2018
    Publication date: November 15, 2018
    Inventors: Yuan-Tung CHEN, Hsu-Hong FENG, Tzu-Yin CHANG, Wei-Ta WANG, Tzu-Chieh YU
  • Publication number: 20180315211
    Abstract: A tracking system and a method thereof are provided in this disclosure. The tracking method includes steps of: capturing first images of the physical environment by a first electronic device; extracting a plurality of first feature points from the first images; generating a plurality of map points according to the extracted first feature points; building a map of the physical environment according to the map points by the first electronic device; capturing a second image of the physical environment by a second electronic device; extracting second feature points of the second image and transmitting the second feature points to the first electronic device; and estimating a pose of the second electronic device according to the map and the received second feature points by the first electronic device.
    Type: Application
    Filed: April 30, 2018
    Publication date: November 1, 2018
    Inventors: Yuan-Tung CHEN, Shing-Chiao YEH, Po-I WU, Heng DING, Kun-Chun TSAI
  • Publication number: 20180307331
    Abstract: An operating method of a tracking system includes the following operations: obtaining a first relative movement vector of a client device by first movement detector; obtaining scale information related to distance; calculating a first actual movement vector of the client device according to the first relative movement vector and the scale information; and fusing, by a processor of a host device, the first relative movement vector, the scale information and the first actual movement vector to generate a 3D position of the client device.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 25, 2018
    Inventors: Hsin-Yu LU, Li-Kang WENG, Kuang-Yu PAN, Yuan-Tung CHEN
  • Publication number: 20180300532
    Abstract: A tracking system includes a trackable device and a tracking device. The trackable device has a three-dimensional shape. The trackable device includes a first orientation sensor for sensing a first orientation of the trackable device. The tracking device is communicated with the trackable device. The tracking device includes a second orientation sensor, an image sensor and a processing circuit. The second orientation sensor is configured to sense a second orientation of the trackable device. The image sensor configured to capture an image. The processing circuit is coupled with the second orientation sensor and the image sensor. The processing circuit is operable to calculate a two-dimensional silhouette corresponding to the three-dimensional shape according to the first orientation and the second orientation, and utilize the two-dimensional silhouette to search the image captured by the image sensor for allocating coordinates of the trackable device within the image.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 18, 2018
    Inventors: Yuan-Tung CHEN, Chieh-Yu TSENG
  • Publication number: 20180188353
    Abstract: A tracking system includes a first device and a second device. The second device comprises an optical module, an ultrasonic module and a processor. The optical module is configured to capture image data in a first detection field. The ultrasonic module is configured to collect ultrasonic data in a second detection field different from the first detection field. The processor is configured to determine a relative position of a target device relative to the tracking device in a third detection field according to the image data and the ultrasonic data. The third detection field is larger than the first detection field and larger than the second detection field.
    Type: Application
    Filed: December 29, 2017
    Publication date: July 5, 2018
    Inventor: Yuan-Tung CHEN
  • Publication number: 20180180712
    Abstract: A tracking system includes a first device and a second device. The first device includes plural ultrasonic sources and an inertial measurement unit configured to detect inertial data. The second device includes at least one ultrasonic receiver and a processor. The processor is configured to receive the inertial data, estimate an orientation of the first device according to the received inertial data, determine a first ultrasonic transmitter from the ultrasonic transmitters according to the orientation of the first device and a location of the first device, and send an enablement command about the first ultrasonic transmitter to the first device. The enabled transmitter of the ultrasonic transmitters sends ultrasounds according to the enablement command, the at least one ultrasonic receiver is configured to receive the ultrasounds from the first ultrasonic transmitter, and the processor determines the location of the first device according to the received ultrasounds.
    Type: Application
    Filed: December 26, 2017
    Publication date: June 28, 2018
    Inventors: Yuan-Tung CHEN, Kun-Chun TSAI
  • Publication number: 20180180711
    Abstract: A positioning system and method thereof are provided in this disclosure. The positioning method includes steps of: emitting a radiation from a first electronic apparatus to a second electronic apparatus and starting to accumulate a time count; sensing the radiation on the second electronic apparatus and sending a first ultrasonic signal from the second electronic apparatus to the first electronic apparatus; sensing the first ultrasonic signal by a plurality of ultrasound sensors on the first electronic apparatus and calculating a plurality of first time periods started from the radiation is emitted until the first ultrasonic signal is sensed by the ultrasound sensors; calculating a plurality of first relative distances between the ultrasound sensors and a first ultrasound emitter on the second electronic apparatus; and locating a first relative position of the second electronic apparatus relative to the first electronic apparatus according to the first relative distances.
    Type: Application
    Filed: December 26, 2017
    Publication date: June 28, 2018
    Inventors: Yuan-Tung CHEN, Tzu-Chieh YU
  • Publication number: 20180174310
    Abstract: An object tracking method includes configuring a color of a first illuminating object to vary in a first pattern, capturing the first illuminating object according to a first color during a first time period, and capturing the first illuminating object according to a second color during a second time period after the first time period, wherein the second color is different from the first color.
    Type: Application
    Filed: November 26, 2017
    Publication date: June 21, 2018
    Inventors: Yuan-Tung CHEN, Tzu-Yin CHANG, Hsu-Hong FENG