Patents by Inventor Chih-Hsiung Chang
Chih-Hsiung Chang 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: 10386930Abstract: A depth determining method and a depth determining device of an operating body are provided. The depth determining method includes following steps: deriving a first image and a second image that include the operating body from the at least two image capturing units respectively to calculate a first width of the operating body and a first displacement distance of the operating body between the first image and the second image in a first time point; deriving the first image and the second image that include the operating body from the at least two image capturing units respectively to calculate a second width of the operation body in a second time point; and calculating displacement depth of operating body between the first time point and the second time point by a transform function according to the first displacement distance and a different between the first width and the second width.Type: GrantFiled: January 8, 2016Date of Patent: August 20, 2019Assignee: Wistron CorporationInventors: Sheng-Hsien Hsieh, Chih-Hsiung Chang, Shou-Te Wei
-
Patent number: 10366037Abstract: Present disclosure relates to a method for managing a docking device and the docking device thereof. The docking device is configured with a processor and at least two coupling ports. The method comprises following steps: electrically coupling a computer and/or at least one peripheral device to the at least two coupling ports respectively; retrieving a plurality of characteristic profiles by the processor, wherein each of the characteristic profiles is retrieved from each of the at least two coupling ports; receiving, by the processor, an input signal from the computer or the at least one peripheral device; and changing the characteristic profiles based on the input signal by the processor.Type: GrantFiled: May 25, 2017Date of Patent: July 30, 2019Assignee: I/O INTERCONNECT, LTD.Inventors: Johnny Hsiang-Yu Chen, Chih-Hsiung Chang, Tsung-Min Chen, Hsiang-Ling Wang
-
Publication number: 20180198296Abstract: A hand-held electronic apparatus, a charging system, a connector and a charging management method thereof are provided. The charging management method includes: detecting a detection temperature on a charging port of the hand-held electronic apparatus, wherein the charging port is coupled to a power adapter; starting an alert mode when the detection temperature exceeds a threshold; measuring variation of the detection temperature according to a preset cycle in the alert mode; setting an over-temperature flag according to the variation of the detection temperature in the alert mode; and making the power adapter stop providing a charging voltage according to the over-temperature flag.Type: ApplicationFiled: January 10, 2017Publication date: July 12, 2018Applicant: HTC CorporationInventors: Kun-Da He, Chih-Hsiung Chang, Shih-Ping Lin, Chuan-Li Wu, Chia-Ming Chang, Ming-Tse Yen, Pin-Hsuan Chang, Chun-Wei Lin
-
Publication number: 20180101496Abstract: Present disclosure relates to a HID switch with security function that permits sharing of peripherals between multiple computers in a multi-network computer system. The HID switch is configured to connect at least one user input peripheral device and at least two host computers. The HID switch incudes a first directing module and a second directing module, wherein the two directing modules are physically isolated. The passages directed to the two directing modules are controlled by a physical peripheral selector. The physical peripheral selector is configured to selectively enable the first passage and the second passage, wherein only one of the first and second passages is to enabled at a time. When one of the first or the second passages is enabled, there is only one host computer is electrically connected to the user input peripheral device via one of the directing modules.Type: ApplicationFiled: October 6, 2017Publication date: April 12, 2018Inventors: Chih-Hsiung CHANG, Kun-Yuan LIN
-
Publication number: 20180032465Abstract: Present disclosure relates to a method for providing graphical panel of a docking device and the docking device thereof. The method includes following steps: electrically coupling the docking device having ports to a first device having a display, wherein some indicators corresponding to the ports are provided on the docking device; and providing a graphical panel having a first contour corresponding to a second contour of the docking device, wherein some virtual indicators are positioned on the graphical panel corresponding to the visual indicators.Type: ApplicationFiled: October 11, 2017Publication date: February 1, 2018Inventors: Chih-Hsiung CHANG, Hsiang-Ling WANG
-
Publication number: 20180018295Abstract: The invention is used for a dock between a battery-operated device and a power adapter. The method includes: a) providing a USB dock with a first USB type-C connector and a second USB type-C connector, wherein the two USB type-C connectors are electrically connected through a switch module; b) connecting a first USB device to the first USB type-C connector; c) verifying whether the first USB device sends out a USB host command or not; d) setting the first USB type-C connector and the second USB type-C connector to serve as a host port and a device port, respectively, if yes in step c); and e) setting the first USB type-C connector and the second USB type-C connector to serve as a device port and a host port, respectively, if no in step c).Type: ApplicationFiled: July 18, 2016Publication date: January 18, 2018Applicant: I/O INTERCONNECT, LTD.Inventors: Johnny Chen, Chih-Hsiung Chang, Tsung-Min Chen
-
Publication number: 20170346312Abstract: The method includes: a) connecting a dock between a laptop and a power adapter; b) checking whether a smartphone is connected to the dock; c) verifying whether AC power can supply power over a required value of the laptop if yes in step b); d) verifying whether a residual battery capacity of the laptop is greater than 80% if yes in step c); e) verifying whether another smartphone is connected to the dock if yes in step d); f) verifying whether to enable data transfer if yes in step e); g) activating a CDP mode if yes in step f); h) activating a DCP mode if no in step f); i) verifying whether to enable faster charging if no in step e); j) going back to step f) if yes in step i); k) activating an SDP mode if no in step i); and l) showing a warning if no in steps b), c) or d).Type: ApplicationFiled: July 19, 2016Publication date: November 30, 2017Applicant: I/O INTERCONNECT, LTD.Inventors: Chih-Hsiung Chang, Hsiang-Ling Wang
-
Publication number: 20170344507Abstract: Present disclosure relates to a method for managing a docking device and the docking device thereof. The docking device is configured with a processor and at least two coupling ports. The method comprises following steps: electrically coupling a computer and/or at least one peripheral device to the at least two coupling ports respectively; retrieving a plurality of characteristic profiles by the processor, wherein each of the characteristic profiles is retrieved from each of the at least two coupling ports; receiving, by the processor, an input signal from the computer or the at least one peripheral device; and changing the characteristic profiles based on the input signal by the processor.Type: ApplicationFiled: May 25, 2017Publication date: November 30, 2017Inventors: Johnny Hsiang-Yu CHEN, Chih-Hsiung Chang, Tsung-Min Chen, Hsiang-Ling Wang
-
Publication number: 20170294794Abstract: An electronic system and a charging method are provided. The electronic system includes an electronic device and a charger. The charger is coupled to the electronic device. The electronic device senses a first state of the electronic device. The electronic device determines whether a value corresponding to the first state is greater than a first threshold. When the value corresponding to the first state is greater than the first threshold, the electronic device provides a first control signal, and the charger charges the electronic device by using a first mode according to the first control signal. When the value corresponding to the first state is not greater than the first threshold, the electronic device provides a second control signal, and the charger charges the electronic device by using a second mode according to the second control signal.Type: ApplicationFiled: March 29, 2017Publication date: October 12, 2017Applicant: HTC CorporationInventors: Chi-Sheng Li, Hsin-Hao Lee, Chuan-Li Wu, Shih-Ping Lin, Kun-Da He, Chih-Hsiung Chang, Kun-Wei Lin
-
Patent number: 9766708Abstract: A locating method, a locating device, a depth determining method, and a depth determining device of an operating body are provided. The locating method includes following steps: deriving an image that includes an operating body; scanning the image transversely according to each of scan lines of the image, and deriving each of width values of the operating body in each of the scan lines according to the bright dot information in each of the scan lines of the image; calculating a relative variation level between each of the width values in the adjacent scan line sequentially; when the relative variation level is less than a threshold, determining a locating point of the operating body according to one of the scan lines and one of the width values corresponding to the relative variation level.Type: GrantFiled: February 24, 2014Date of Patent: September 19, 2017Assignee: Wistron CorporationInventors: Sheng-Hsien Hsieh, Chih-Hsiung Chang, Shou-Te Wei
-
Patent number: 9740334Abstract: An optical touch system includes a plurality of touch devices and an electronic device. The electronic device includes a touch display unit configured to generate a plurality of touch points when the plurality of touch devices are contacted thereon, a control unit configured to divide the plurality of touch devices into a plurality of groups according to characteristics of the plurality of touch devices to control or handle operations of the plurality of groups in time division, an optical device configured to obtain images corresponding to touch points generated by touch devices in one of the plurality of groups, and a calculating unit configured to receive the images obtained by the optical device to calculate positions of the touch points corresponding to the images.Type: GrantFiled: February 25, 2014Date of Patent: August 22, 2017Assignee: Wistron CorporationInventors: Chih-Hsiung Chang, Yi-Shu Chen
-
Patent number: 9339199Abstract: A physiological signal detection device has a battery disposed in the physiological signal detection device, a first input terminal, a second input terminal, and a charging detection terminal A physiological signal detection circuit generates a physiological signal according to a detection result of the first input terminal and the second input terminal A charging control circuit is electrically coupled to the first input terminal, the second input terminal and the charging detection terminal, wherein, when the first input terminal and the second input terminal are coupled to a power supply supplied by a charging device, the charging detection terminal receives a charging indication signal of the charging device and according to the charging indication signal the charging device is enabled so as to charge the battery with the power supply.Type: GrantFiled: February 26, 2013Date of Patent: May 17, 2016Assignee: QUANTA COMPUTER INC.Inventors: Chih-Hsiung Yu, Yung-Ming Chung, Chih-Hsiung Chang
-
Publication number: 20160116990Abstract: A locating method, a locating device, a depth determining method, and a depth determining device of an operating body are provided. The locating method includes following steps: deriving an image that includes an operating body; scanning the image transversely according to each of scan lines of the image, and deriving each of width values of the operating body in each of the scan lines according to the bright dot information in each of the scan lines of the image; calculating a relative variation level between each of the width values in the adjacent scan line sequentially; when the relative variation level is less than a threshold, determining a locating point of the operating body according to one of the scan lines and one of the width values corresponding to the relative variation level.Type: ApplicationFiled: January 8, 2016Publication date: April 28, 2016Inventors: Sheng-Hsien Hsieh, Chih-Hsiung Chang, Shou-Te Wei
-
Publication number: 20150372068Abstract: A display device includes a substrate, a thin film transistor unit disposed on the substrate, and a shielding unit disposed between the substrate and the thin film transistor unit. The thin film transistor unit includes a gate, an insulating layer, a semiconductor layer, a source, and a drain. The shielding unit includes a shielding layer and a first buffer layer. The first buffer layer is disposed between the shielding layer and the thin film transistor. Light with a wavelength of 200 nm to 510 nm has a transmittance between 0 to 15% when passing through the shielding layer.Type: ApplicationFiled: June 15, 2015Publication date: December 24, 2015Inventors: Cheng-Hsu CHOU, I-Ho SHEN, Chih-Hsiung CHANG
-
Patent number: 9176631Abstract: A touch-and-play input device coupled to an electronic device having a touch unit is provided. The touch-and-play input device comprises an input unit, a attaching unit and at least one conductive unit. The input unit generates an input signal. The attaching unit comprises an attaching surface. The conductive units are configured on the attaching surface of the attaching unit and are electrically connected to the input unit. The attaching unit attaches a portion of the touch unit of the electronic device through the attaching surface so that the conductive units touch a portion of the touch unit. Further, the input signal is input into the electronic device through the conductive units and the touch unit.Type: GrantFiled: January 7, 2013Date of Patent: November 3, 2015Assignee: Wistron CorporationInventors: Chih-Hsiung Chang, You-Xin Liu, Yi-Shu Chen
-
Patent number: 9143183Abstract: A coordinate transmitter, a coordinate receiver and a coordinate transceiver are provided. The coordinate transmitter includes a global positioning system (GPS) module, a processing unit and a communication module. The global positioning system module receives a global positioning system signal set. The processing unit captures a coordinate data string from the GPS signal set. The processing unit replaces at least one English letter data and at least one punctuation mark data in the coordinate data string. The processing unit converts the replaced coordinate data string into a dual tone multi frequency (DTMF) signal set. The communication module transmits the DTMF signal set.Type: GrantFiled: November 4, 2013Date of Patent: September 22, 2015Assignee: Wistron CorporationInventors: Chih-Hsiung Chang, Yi-Shu Chen, Shih-Chieh Liao
-
Publication number: 20150123892Abstract: A locating method, a locating device, a depth determining method, and a depth determining device of an operating body are provided. The locating method includes following steps: deriving an image that includes an operating body; scanning the image transversely according to each of scan lines of the image, and deriving each of width values of the operating body in each of the scan lines according to the bright dot information in each of the scan lines of the image; calculating a relative variation level between each of the width values in the adjacent scan line sequentially; when the relative variation level is less than a threshold, determining a locating point of the operating body according to one of the scan lines and one of the width values corresponding to the relative variation level.Type: ApplicationFiled: February 24, 2014Publication date: May 7, 2015Applicant: Wistron CorporationInventors: Sheng-Hsien Hsieh, Chih-Hsiung Chang, Shou-Te Wei
-
Publication number: 20150077397Abstract: An optical touch system includes a plurality of touch devices and an electronic device. The electronic device includes a touch display unit configured to generate a plurality of touch points when the plurality of touch devices are contacted thereon, a control unit configured to divide the plurality of touch devices into a plurality of groups according to characteristics of the plurality of touch devices to control or handle operations of the plurality of groups in time division, an optical device configured to obtain images corresponding to touch points generated by touch devices in one of the plurality of groups, and a calculating unit configured to receive the images obtained by the optical device to calculate positions of the touch points corresponding to the images.Type: ApplicationFiled: February 25, 2014Publication date: March 19, 2015Applicant: Wistron CorporationInventors: Chih-Hsiung Chang, Yi-Shu Chen
-
Publication number: 20150063429Abstract: A coordinate transmitter, a coordinate receiver and a coordinate transceiver are provided. The coordinate transmitter includes a global positioning system (GPS) module, a processing unit and a communication module. The global positioning system module receives a global positioning system signal set. The processing unit captures a coordinate data string from the GPS signal set. The processing unit replaces at least one English letter data and at least one punctuation mark data in the coordinate data string. The processing unit converts the replaced coordinate data string into a dual tone multi frequency (DTMF) signal set. The communication module transmits the DTMF signal set.Type: ApplicationFiled: November 4, 2013Publication date: March 5, 2015Applicant: Wistron CorporationInventors: Chih-Hsiung Chang, Yi-Shu Chen, Shih-Chieh Liao
-
Patent number: 8781770Abstract: A method and a system for estimating a battery percentage are provided. The method includes the following steps. A coulomb counter calculated battery index (CCBI) relating to an accumulated amount of current flowing out of a battery is obtained. A battery voltage curve tracer calculated battery index (VCBI) relating to a temperature, an output voltage of the battery, and a current flowing out of the battery is obtained. A modified calculated battery index (MCBI) ranging between the CCBI and the VCBI is generated according to the CCBI and the VCBI.Type: GrantFiled: November 8, 2010Date of Patent: July 15, 2014Assignee: HTC CorporationInventors: Jean-Lieh Shen, Chih-Chung Teng, Tsung-Yuan Yang, Chih-Hsiung Chang, Kuei-Yuan Lai