Patents by Inventor Yu-Cheng Hua

Yu-Cheng Hua 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: 8483613
    Abstract: A connection establishing method for a slave Bluetooth device supporting a plurality of Bluetooth profiles, includes generating an indication value according to a selecting signal inputted to the Bluetooth device, the indication value indicating a Bluetooth profile to be used, deciding whether to modify a hardware address of the Bluetooth device according to the indication value and a state value that indicates a Bluetooth profile currently used, and establishing a connection with a master Bluetooth device according to the Bluetooth profile to be used indicated by the indication value.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: July 9, 2013
    Assignee: Wistron Corporation
    Inventor: Yu-Cheng Hua
  • Publication number: 20110171908
    Abstract: A connection establishing method for a slave Bluetooth device supporting a plurality of Bluetooth profiles, includes generating an indication value according to a selecting signal inputted to the Bluetooth device, the indication value indicating a Bluetooth profile to be used, deciding whether to modify a hardware address of the Bluetooth device according to the indication value and a state value that indicates a Bluetooth profile currently used, and establishing a connection with a master Bluetooth device according to the Bluetooth profile to be used indicated by the indication value.
    Type: Application
    Filed: December 8, 2010
    Publication date: July 14, 2011
    Inventor: Yu-Cheng Hua
  • Publication number: 20090040078
    Abstract: A method for differentiating keys includes setting a first layer application program and a second layer application program, detecting whether the second layer application program is executed to generate a detection result, and selectively utilizing the first layer application program or the second layer application program to determine an event corresponding to a scan code when receiving the scan code corresponds to a key.
    Type: Application
    Filed: August 30, 2007
    Publication date: February 12, 2009
    Inventors: Wan-Chi Lan, Yu-Cheng Hua
  • Publication number: 20060265539
    Abstract: This invention provides a method for supplying electric power by a PCMCIA socket connecting to a PCMCIA controller, the method comprising: determining whether the PCMCIA socket electronically connects to a specific device; determining whether the specific device comprises a PCMCIA interface IC; and if the specific device does not comprise the PCMCIA interface IC therein, then switching on the PCMCIA socket for electric power through the PCMCIA controller to supply electric power to the specific device by the PCMCIA socket.
    Type: Application
    Filed: October 5, 2005
    Publication date: November 23, 2006
    Applicant: Wistron Corporation
    Inventors: Yu-Cheng Hua, Wei-Che Lin
  • Publication number: 20050184973
    Abstract: An apparatus that provides multi-mode digital input to computers, tablets, personal digital assistants, global positioning satellite systems, and other such devices. Digital information can be transferred via passive inputs such as resistive or capacitive touch using a human finger or a stylus, via passive acoustic surface wave or electro-optical devices, via active technology such as inductive and RF inputs, and via active wired inputs such as a mouse or a touch pad. The preferred input mode can be selected by an operator, or simultaneous input modes can be sensed, differentiated, and prioritized by the apparatus.
    Type: Application
    Filed: February 25, 2005
    Publication date: August 25, 2005
    Inventors: Dwayne Lum, Douglas Fowler, James Gibbons, Yu-Cheng Hua, Chan-Mei Chu, Philip Bagwell
  • Publication number: 20050088405
    Abstract: A portable electronic device includes a pivot unit coupled to a main housing and a cover body such that the cover body is pivotable about a longitudinal axis parallel to a top surface of the main housing, and about a vertical axis transverse to the top surface of the main housing. A virtual control key module configures a display panel mounted on a first surface of the cover body to show simulated control keys thereon when the portable electronic device is operated in a mode, where the cover body is superimposed on the main housing such that a second surface of the cover body opposite to the first surface faces toward the top surface of the main housing. The simulated control keys have distinct functions assigned thereto and are available for selection so as to enable execution of the function assigned to a selected simulated control key.
    Type: Application
    Filed: January 23, 2004
    Publication date: April 28, 2005
    Inventors: Chien-Ming Chu, Yu-Cheng Hua, Wan-Chi Lan
  • Publication number: 20040013434
    Abstract: A wireless data processing system and method, adapted to a computer system having an infrared device, enables a user to wirelessly operate the computer system by a remote control. For example, during a multimedia presentation a current slide shown on a display will be changed to the next slide when a user presses the “Page Down” key on the remote control. That is, the computer system performs the corresponding process according to the signal emitted from the remote control and received by the infrared device. The invention comprises a mode switching module for switching an infrared controller of the infrared device between the FIR mode and the ASK mode.
    Type: Application
    Filed: April 11, 2002
    Publication date: January 22, 2004
    Inventor: Yu-Cheng Hua
  • Publication number: 20020044321
    Abstract: A remote control system for a portable computer with a built-in IR receiver receiving IR signals emitted from a remote controller, comprising chipsets connecting the central processing unit to the IR receiver and to a serial port; a circuit switcheably connecting the IR receiver to the serial port; and software for determining whether to switch short the circuit by transmitting a first signal to the circuit and whether to switch open the circuit by transmitting a second signal to the circuit.
    Type: Application
    Filed: March 23, 2001
    Publication date: April 18, 2002
    Inventors: Yu-Cheng Hua, Chun-Liang Chen, Te-Yu Liang