Patents by Inventor Fu-Jen Shih

Fu-Jen Shih 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: 7379003
    Abstract: A multi-channel display driver circuit incorporating modified D/A converters has a plurality of digital comparators connected to a number generator. Each digital comparator has an output, a digital data input and a reference input. The reference inputs of all digital comparators are connected to the number generator and the outputs are respectively connected to corresponding data channels of a display. By the proposed technique, each digital comparator obtains a unique non-sequence reference signal, and then compares it with the input digital data signal. Since the non-sequential signals are input to the reference input of the digital comparator, the overshoot distortion, the harmonic distortion and the electromagnetic interference problems are prevented. Therefore, the precise imaging can be obtained with this signal modulation technique in small circuit size.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: May 27, 2008
    Assignee: Silicon Touch Technology Inc.
    Inventors: Yu-Chun Chuang, Fu-Jen Shih, Cheng-Han Hsieh, Hsu-Yuan Chin
  • Publication number: 20050156918
    Abstract: A multi-channel display driver circuit incorporating modified D/A converters has a plurality of digital comparators connected to a number generator. Each digital comparator has an output, a digital data input and a reference input. The reference inputs of all digital comparators are connected to the number generator and the outputs are respectively connected to corresponding data channels of a display. By the proposed technique, each digital comparator obtains a unique non-sequence reference signal, and then compares it with the input digital data signal. Since the non-sequential signals are input to the reference input of the digital comparator, the overshoot distortion, the harmonic distortion and the electromagnetic interference problems are prevented. Therefore, the precise imaging can be obtained with this signal modulation technique in small circuit size.
    Type: Application
    Filed: November 12, 2004
    Publication date: July 21, 2005
    Applicant: SILICON TOUCH TECHNOLOGY INC.
    Inventors: Yu-Chun Chuang, Fu-Jen Shih, Cheng-Han Hsieh, Hsu-Yuan Chin
  • Patent number: 6888506
    Abstract: A plate type antenna for a small size mobile wireless communication device can be simultaneously to fit two different channels of 5.4 GHZ and 2.4 GHZ according to the specification of the wireless LAN standard announced by IEEE comprising a first antenna of a pair of “” shaped antenna wiring symmetrically printed on an upside surface of a dielectrical PC board and a second antenna of a “” shaped antenna wiring printed on an underside surface of the PC board coordinately piled under the first antenna wire for producing a reflecting surface yield point sympathy effect to provide two different transmitting channels fitting to the specification of the wireless LAN standard therefore.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 3, 2005
    Assignee: Global Sun Technology Inc.
    Inventor: Fu-Jen Shih
  • Publication number: 20040164906
    Abstract: A plate type antenna for a small size mobile wireless communication device can be simultaneously to fit two different channels of 5.4 GHZ and 2.4 GHZ according to the specification of the wireless LAN standard announced by IEEE comprising a first antenna of a pair of “” shaped antenna wiring symmetrically printed on an upside surface of a dielectrical PC board and a second antenna of a “” shaped antenna wiring printed on an underside surface of the PC board coordinately piled under the first antenna wire for producing a reflecting surface yield point sympathy effect to provide two different transmitting channels fitting to the specification of the wireless LAN standard therefore.
    Type: Application
    Filed: February 26, 2003
    Publication date: August 26, 2004
    Inventor: Fu-Jen Shih