Patents by Inventor Chih-Hung Li

Chih-Hung Li 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: 10010367
    Abstract: A steerable electrosurgical electrode is provided. The steerable electrosurgical electrode comprises a handle, a control element, a first tube, a second tube, a third tube, an electrode and an electrical transmission unit. The handle has a flat area therein, the control element has a plurality of positioning planes and pivotally connects to the handle such that one of the positioning planes rotatably abuts against the flat area, the first tube is positioned inside the second tube and pivotally connected to the control element, the third tube is connected to the second and the first tubes through a first and a second links, respectively, and the electrode is configured at the right end of the third tube. A user may manipulate the control element such that it abuts against the flat area at different positioning planes, to move the first tube inside the second tube, which in turns rotates the third tube and the electrode.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: July 3, 2018
    Assignee: COREBIO TECHNOLOGIES CO., LTD.
    Inventors: Chih-Hao Chien, Chih-Hung Li
  • Publication number: 20170178330
    Abstract: The present invention discloses an interior mobile mapping system and method thereof. The interior mobile mapping method comprises the following steps: establishing a plurality of interior reference points; obtaining coordinates of the plurality of interior reference points corresponded to an interior coordinate system; moving from one interior reference point which is closest to an interior object; taking a picture for the interior object at more than two different places individually; and calculating the coordinate of the interior object corresponded to an exterior coordinate system according to the respective position of the interior object in the pictures and the coordinates of the different shooting locations.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 22, 2017
    Inventors: Chih-Hung LI, Kai-Wei CHIANG, Chien-Hsun CHU, Chen-Kai LIAO, Guang-Je TSAI
  • Publication number: 20170071658
    Abstract: A steerable electrosurgical electrode is provided. The steerable electrosurgical electrode comprises a handle, a control element, a first tube, a second tube, a third tube, an electrode and an electrical transmission unit. The handle has a flat area therein, the control element has a plurality of positioning planes and pivotally connects to the handle such that one of the positioning planes rotatably abuts against the flat area, the first tube is positioned inside the second tube and pivotally connected to the control element, the third tube is connected to the second and the first tubes through a first and a second links, respectively, and the electrode is configured at the right end of the third tube. A user may manipulate the control element such that it abuts against the flat area at different positioning planes, to move the first tube inside the second tube, which in turns rotates the third tube and the electrode.
    Type: Application
    Filed: November 2, 2015
    Publication date: March 16, 2017
    Inventors: Chih-Hao Chien, Chih-Hung Li
  • Publication number: 20170071618
    Abstract: A steerable laparoscopic instrument is provided. The steerable laparoscopic instrument comprises a transmission part, a first disc, a second disc, a bending part, a third disc, a working part, and a handle part. The steerable laparoscopic instrument provides surgical operation with at least two directional controls, is easily disassembled and reassembled, can be operated by a single hand, and is easily to be cleaned and sterilized.
    Type: Application
    Filed: October 29, 2015
    Publication date: March 16, 2017
    Inventors: Wen-Ming Hsu, Chih-Hung Li
  • Patent number: 9588228
    Abstract: An electronic apparatus includes a selection unit, a storage unit and a processing unit. The selection unit and the storage unit are coupled to the processing unit. The selection unit selects a first reference point proximate to the electronic apparatus. The storage unit stores a plurality of second locations of a plurality of second reference points. The processing unit executes a single-point distance measurement between the electronic apparatus and a first location of the selected first reference point, provides the electronic apparatus auxiliary positioning information by selecting the second locations stored in the storage unit and generates a speculative location of the electronic apparatus by further computing the results of the single-point distance measurement and the auxiliary positioning information.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: March 7, 2017
    Assignee: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chih-Hung Li, Dze-Min Jou, Chia-Chyang Chang
  • Patent number: 9541650
    Abstract: A satellite positioning method, a satellite pseudorange calculation apparatus and a satellite pseudorange calculation method thereof are provided. The satellite pseudorange calculation apparatus is used for calculating a pseudorange between a satellite and a satellite positioning receiving device, wherein the pseudorange includes an integer code value and a fractional code value. The satellite pseudorange calculation apparatus comprises a receiver and a processor electrically connected with the receiver. The receiver is configured to receive a code phase from a satellite signal acquisition unit, and the processor is configured to calculate the fractional code value according to the code phase. The receiver is further configured to define an approximation position and calculate the integer code value according to the approximate position and the fractional code value. The satellite positioning method is used for positioning the satellite positioning receiving device.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: January 10, 2017
    Assignee: Institute For Information Industry
    Inventors: Chih-Hung Li, He-Sheng Wang, Emery Jou, Shu-Min Chuang, Shan-Yaun Yang, Chih-Min Hsu
  • Publication number: 20160354328
    Abstract: Provided is a method for preparation of a sustained released pharmaceutical composition, wherein an active ingredient and a cellulose derivative dissolved in a lower alkyl alcohol solvent are processed with granulation such that the PEO does not need to be processed with granulation or sizing to achieve uniform drug distribution. Besides, the specific range of the viscosity of the cellulose derivate provides better uniformity to the sustained release pharmaceutical composition derived from the above preparation method.
    Type: Application
    Filed: June 2, 2016
    Publication date: December 8, 2016
    Applicant: ANXO PHARMACEUTICAL CO., LTD.
    Inventors: Chen-Ming HUANG, Li-Chuan CHUANG, Chih-Hung LI
  • Publication number: 20160171017
    Abstract: A mobile positioning apparatus and a positioning method thereof are provided. The mobile positioning apparatus retrieves sensing information and an environment image with environment image featured points. The mobile positioning apparatus determines first location information according to the sensing information, and selects a data image corresponding to the first location information from an image database. The data image has data image featured points which correspond to the environment image featured points. The mobile positioning apparatus determines second location information according to the environment image, the data image, the environment image featured points and the data image featured points, and determines second location information of the mobile positioning apparatus.
    Type: Application
    Filed: January 31, 2015
    Publication date: June 16, 2016
    Inventors: Chih-Hung LI, Kai-Wei CHIANG, Chen-Kai LIAO, Chien-Hsun CHU, Guang-Je TSAI
  • Publication number: 20150145721
    Abstract: An electronic apparatus includes a selection unit, a storage unit and a processing unit. The selection unit and the storage unit are coupled to the processing unit. The selection unit selects a first reference point proximate to the electronic apparatus. The storage unit stores a plurality of second locations of a plurality of second reference points. The processing unit executes a single-point distance measurement between the electronic apparatus and a first location of the selected first reference point, provides the electronic apparatus auxiliary positioning information by selecting the second locations stored in the storage unit and generates a speculative location of the electronic apparatus by further computing the results of the single-point distance measurement and the auxiliary positioning information.
    Type: Application
    Filed: December 19, 2013
    Publication date: May 28, 2015
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: CHIH-HUNG LI, DZE-MIN JOU, CHIA-CHYANG CHANG
  • Patent number: 9007776
    Abstract: An electronic module includes a first circuit board having a first surface, a second circuit board having a second surface, first electronic components on the first surface, second electronic components on the second surface, a first conductive fence, and a second conductive fence. The first conductive fence encloses the first electronic components and has a first opening exposing the first electronic components. The second conductive fence encloses the second electronic components and has a second opening exposing the second electronic components. The first opening of the first conductive fence joints the second opening of the second conductive fence, such that the first electronic components and the second electronic components are surrounded by the first circuit board, the second circuit board, the first conductive fence, and the second conductive fence. At least one of the first electronic components is higher than the first conductive fence.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 14, 2015
    Assignee: HTC Corporation
    Inventors: I-Cheng Chuang, Chien-Hung Chen, Chih-Hung Li, Cheng-Te Chen
  • Patent number: 8912952
    Abstract: A global positioning system device and an ionosphere error estimation method thereof are provided. The global positioning system device is connected to a plurality of dual-band base stations, and receives a plurality of ionosphere pierce point coordinates and a plurality of ionosphere errors from the dual-band base stations. The global positioning system device calculates a user ionosphere error by an interpolation method based on the ionosphere pierce point coordinates and the ionosphere errors of the dual-band base stations and a user ionosphere pierce point coordinate of the global positioning system device.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 16, 2014
    Assignee: Institute for Information Industry
    Inventors: Ming Yang, Shau-Shiun Jan, An-Lin Tao, Chih-Hung Li, Shan-Yuan Yang
  • Patent number: 8912749
    Abstract: An electrical apparatus including a battery module and a battery verification module is disclosed. The battery module has a verification circuit and an identification resistor. When the battery module is connected to the battery verification module, the battery verification module obtains a type information of the battery module according to the voltage level on a coupled point between a reference resistor and the identification resistor. The battery verification module transmits a verification request to the verification circuit to allow the verification circuit to transmit a verification signal to the battery verification module through a coupled path between the reference resistor and the identification resistor. The reference resistor is built in the battery verification module.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: December 16, 2014
    Assignee: HTC Corporation
    Inventors: Yung-Hsien Kuo, Tai-Chuan Chen, Chih-Hung Li
  • Publication number: 20140168908
    Abstract: An electronic module includes a first circuit board having a first surface, a second circuit board having a second surface, first electronic components on the first surface, second electronic components on the second surface, a first conductive fence, and a second conductive fence. The first conductive fence encloses the first electronic components and has a first opening exposing the first electronic components. The second conductive fence encloses the second electronic components and has a second opening exposing the second electronic components. The first opening of the first conductive fence joints the second opening of the second conductive fence, such that the first electronic components and the second electronic components are surrounded by the first circuit board, the second circuit board, the first conductive fence, and the second conductive fence. At least one of the first electronic components is higher than the first conductive fence.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Applicant: HTC CORPORATION
    Inventors: I-Cheng Chuang, Chien-Hung Chen, Chih-Hung Li, Cheng-Te Chen
  • Publication number: 20140152500
    Abstract: A satellite positioning method, a satellite pesudorange calculation apparatus and a satellite pesudorange calculation method thereof are provided. The satellite pesudorange calculation apparatus is used for calculating a pesudorange between a satellite and a satellite positioning receiving device, wherein the pesudorange includes an integer code value and a decimal code value. The satellite pesudorange calculation apparatus comprises a receiver and a processor electrically connected with the receiver. The receiver is configured to receive a code phase from a satellite signal acquisition unit, and the processor is configured to calculate the decimal code value according to the code phase. The receiver is further configured to define an approximation position and calculate the integer code value according to the approximate position and the decimal code value. The satellite positioning method is used for positioning the satellite positioning receiving device.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 5, 2014
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Chih-Hung LI, He-Sheng WANG, EMERY JOU, Shu-Min CHUANG, Shan-Yaun YANG, Chih-Min HSU
  • Publication number: 20130147660
    Abstract: A global positioning system device and an ionosphere error estimation method thereof are provided. The global positioning system device is connected to a plurality of dual-band base stations, and receives a plurality of ionosphere pierce point coordinates and a plurality of ionosphere errors from the dual-band base stations. The global positioning system device calculates a user ionosphere error by an interpolation method based on the ionosphere pierce point coordinates and the ionosphere errors of the dual-band base stations and a user ionosphere pierce point coordinate of the global positioning system device.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 13, 2013
    Inventors: Ming Yang, Shau-Shiun Jan, An-Lin Tao, Chih-Hung Li, Shan-Yuan Yang
  • Patent number: 8423805
    Abstract: A portable electronic apparatus is connected to a power supply device via a transmission line, and it includes a designated connector, a charge control circuit, and a judgment circuit. The designated connector includes five terminals respectively corresponding to five pins of a USB connector of the power supply device. When the power supply device is connected to the portable electronic apparatus, the first terminal of the designated connector is logic high, the fourth terminal of the designated connector is logic high, and the third terminal of the designated connector is logic high after pulling up the voltage level of the second terminal, the judgment circuit pulls down the voltage level of the third terminal and detects the voltage level of the third terminal so as to generate a determining result for determining a type of the power supply device.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: April 16, 2013
    Assignee: HTC Corporation
    Inventors: Chih-Hung Li, Yung-Hsien Kuo
  • Publication number: 20120306505
    Abstract: An electrical apparatus including a battery module and a battery verification module is disclosed. The battery module has a verification circuit and an identification resistor. When the battery module is connected to the battery verification module, the battery verification module obtains a type information of the battery module according to the voltage level on a coupled point between a reference resistor and the identification resistor. The battery verification module transmits a verification request to the verification circuit to allow the verification circuit to transmit a verification signal to the battery verification module through a coupled path between the reference resistor and the identification resistor. The reference resistor is built in the battery verification module.
    Type: Application
    Filed: June 1, 2011
    Publication date: December 6, 2012
    Applicant: HTC CORPORATION
    Inventors: Yung-Hsien Kuo, Tai-Chuan Chen, Chih-Hung Li
  • Publication number: 20120285092
    Abstract: A longitudinal-slide door controlling mechanism is provided to improve door controlling for large vehicles, such as buses. The door controlling mechanism is designed to longitudinal-slide to save space-occupied by the door and enhance safety. The mechanism includes a track, a slider group, a flexible transmission group, and a drive element. The flexible transmission group is used to drive the slider group to move along the track. And the track is attached to the bus body. Therefore the bus door is driven to longitudinal-slide along the bus body. The space-occupied caused by the conventional rotary door is saved. Also, the passerby struck by the door during opening would be eliminated.
    Type: Application
    Filed: May 9, 2011
    Publication date: November 15, 2012
    Inventor: Chih-Hung Li
  • Patent number: 8311575
    Abstract: A handheld mobile phone includes at least two buttons, a logic circuit, and a processing unit, wherein each button is used for performing at least one specific function. The logic circuit is coupled to the at least two buttons for generating a corresponding specific signal when one of the at least two buttons is pressed alone, and for generating at least a control signal when all of the at least two buttons are pressed. The processing unit executes the specific function of the pressed button according to the corresponding specific signal. When all of the at least two buttons are pressed, the processing unit controls the handheld mobile phone to enter a reset state from an operating state according to at least the control signal.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: November 13, 2012
    Assignee: HTC Corporation
    Inventors: Chih-Hung Li, Szu-Yuan Huang, Yung-Hsien Kuo
  • Patent number: 8292349
    Abstract: A longitudinal-slide door controlling mechanism is provided to improve door controlling for large vehicles, such as buses. The door controlling mechanism is designed to longitudinal-slide to save space-occupied by the door and enhance safety. The mechanism includes a track, a slider group, a flexible transmission group, and a drive element. The flexible transmission group is used to drive the slider group to move along the track. And the track is attached to the bus body. Therefore the bus door is driven to longitudinal-slide along the bus body. The space-occupied caused by the conventional rotary door is saved. Also, the passerby struck by the door during opening would be eliminated.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: October 23, 2012
    Inventor: Chih-Hung Li