Patents by Inventor Tso Chen

Tso 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: 8116354
    Abstract: A sync detection device and method for a GNSS receiver. In modernized GNSS, each satellite transmits a data signal and a pilot signal. Correlations are performed between a data symbol stream converted from the data signal with possible hypotheses to find a leading edge of a frame of the data signal (i.e. frame sync detection) and between a pilot symbol stream converted from the pilot signal with possible hypotheses to find a leading edge of a code sequence of the pilot signal (i.e. pilot sync detection). The possible hypotheses for the frame sync detection are selected according to a result of pilot sync detection when pilot sync is done. Frame sync can be efficiently achieved since a range of the selected possible hypotheses is quite limited.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: February 14, 2012
    Assignee: Mediatek Inc.
    Inventor: Kun-tso Chen
  • Patent number: 8111735
    Abstract: A correlator for a GNSS receiver and a code generator used in the correlator as well as a correlation method are disclosed. In the GNSS, each satellite transmits a data signal and a pilot signal. The correlator is adaptable for executing correlation to the data signal, the pilot signal and various combinations thereof, such as non-coherent and coherent combinations. The code generator generates primary ranging codes of the data and pilot signals as well as various combinations thereof, such as sum or difference of the primary ranging codes of the data and pilot signals. By using the various codes, the correlator is adaptable and flexible for different correlation requirements.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: February 7, 2012
    Assignee: Mediatek Inc.
    Inventor: Kun-tso Chen
  • Publication number: 20120025346
    Abstract: A fabricating process of circuit substrate sequently includes: providing a substrate with a pad and a dielectric stack layer disposed at the substrate and overlaying the pad, in which the stack layer includes two dielectric layers and a third dielectric layer located between the two dielectric layers, and the etching rate of the third dielectric layer is greater than the etching rate of the two dielectric layers; forming an opening corresponding to the pad at the stack layer; performing a wet etching process on the stack layer to remove the portion of the third dielectric layer surrounding the opening to form a gap between the portions of the two dielectric layers surrounding the opening; performing a plating process on the stack layer and the pad to respectively form two plating layers at the stack layer and the pad, in which the gap isolates the two plating layers from each other.
    Type: Application
    Filed: July 26, 2011
    Publication date: February 2, 2012
    Applicant: OPTROMAX ELECTRONICS CO., LTD
    Inventor: Kuo-Tso Chen
  • Patent number: 8084779
    Abstract: A casting adapted to carry a light emitting diode die and an anti-static die is disclosed. The casting comprises two electrodes for opposite electrodes and a wall. The light emitting diode die is mounted one of electrodes and the anti-static die is mounted on the other electrode. The wall is arranged between the light emitting diode die and the anti-static die. Further, the height of the wall is larger than that of the anti-static die to shade the anti-static die, whereby reflecting the light emitted from the light emitting diode die. Therefore, the reflection ratio of the light emitting diode die is improved, and the intensity generated by the whole light emitting diode is also improved.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: December 27, 2011
    Assignee: Lextar Electronics Corp.
    Inventors: Ying-Tso Chen, Teng-Huei Huang
  • Patent number: 8031816
    Abstract: A method for determining boundaries of information elements for a PRN code modulated signal is provided. The method of the present invention measures a symbol phase of the received signal and correlation values of different durations to determine the information element boundary. By the method of the present invention, the determination of the information element boundary can be more effective especially in the common dump receiver architecture, wherein a reference wave used in the correlation measurement of the receiver cannot match the received waveform exactly.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: October 4, 2011
    Assignee: Mediatek Inc.
    Inventor: Kun-tso Chen
  • Patent number: 8021582
    Abstract: A continuous phase liquid and a dispersed phase liquid are permitted to flow together through a co-flow channel. Preferably, the dispersed phase liquid is arranged to flow within the flowing body of the continuous phase liquid in the co-flow channel so that the dispersed phase liquid is sheathed by the continuous phase liquid. The continuous phase and dispersed phase liquids are comminuted into microparticles in the co-flow channel by intermittently blocking the co-flow channel.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: September 20, 2011
    Assignee: National Cheng Kung University
    Inventors: Gwo-Bin Lee, Cheng-Tso Chen
  • Publication number: 20110198698
    Abstract: A semiconductor device including a substrate, a plurality of stacked gate structures, a plurality of doped regions, a plurality of liner layers, a plurality of conductive layers, a plurality of dielectric layers and a plurality of word lines is provided. The substrate has a plurality of trenches therein. The stacked gate structures are on the substrate between the trenches. The doped regions are in the substrate at sidewalls or bottoms of the trenches. The liner layers are on at least a portion of sidewalls of the stacked gate structures and on sidewalls of the trenches. The conductive layers are in the trenches and electrically connected to the doped regions. The dielectric layers are on the conductive layers and between the stacked gate structures. The word lines are on the substrate and electrically connected to the stacked gate structures.
    Type: Application
    Filed: July 12, 2010
    Publication date: August 18, 2011
    Applicant: MACRONIX International Co., Ltd.
    Inventors: GUAN-DE LEE, Chien-Hung Liu, Shou-Wei Huang, Ying-Tso Chen
  • Publication number: 20110193361
    Abstract: A robot arm plate is provided. The robot arm plate includes a supporting structure and at least a block. The supporting structure includes a first surface to support an object, a second surface and a third surface, wherein the second surface is lower than the first surface, and the third surface is disposed between the first surface and the second surface. The block is disposed on the second surface. The block includes a lateral wall which contacts against the third surface.
    Type: Application
    Filed: February 8, 2010
    Publication date: August 11, 2011
    Inventors: Chia-He Cheng, Ming-Tso Chen, Mao-Sheng Hsu, Wei-Yen Liu
  • Patent number: 7972689
    Abstract: An optical thin sheet is provided, which comprises a substrate with a light diffusion layer on at least one side of the substrate. The optical thin sheet has an optical property with respect to a haze of no less than 98% and is particularly suitable for use in flat displays.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: July 5, 2011
    Assignee: Eternal Chemical Co., Ltd.
    Inventors: Lung-Lin Hsu, Chia-Yi Lu, Yi-Chung Shih, Ming-Tso Chen, Yen-Fu Huang
  • Publication number: 20110142170
    Abstract: The invention provides a signal receiver. The signal receiver comprises a carrier removal module, a Fast Fourier Transformation (FFT) module, and a signal processor. The carrier removal module generates a carrier signal with a frequency of an estimated carrier frequency, generates at least one delta carrier signal with a frequency of the carrier frequency plus a delta frequency, removes the carrier signal from a first signal to obtain a second signal, and removes the delta carrier signal from the first signal to obtain a third signal. The FFT module derives a series of first FFT values from the second signal, and derives a series of second FFT values from the third signal.
    Type: Application
    Filed: January 18, 2011
    Publication date: June 16, 2011
    Applicant: MEDIATEK INC.
    Inventor: Kun-Tso Chen
  • Publication number: 20110096872
    Abstract: A correlation device and method is provided. According to the present invention, the correlation device comprises a first signal path for receiving a received signal; at least one second signal path for receiving the received signal and eliminating effect of a subcarrier component of the received signal; and a correlation unit couple to the first signal path and each second signal path, for selecting an output of one of the first and second signal paths to execute signal correlation.
    Type: Application
    Filed: December 30, 2010
    Publication date: April 28, 2011
    Applicant: MEDIATEK Inc.
    Inventor: Kun-tso Chen
  • Publication number: 20110080101
    Abstract: An electronic device is provided. The electronic device includes a plurality of load units, a plurality of serial-parallel switch units and a control module. The control module switches the serial-parallel switch units to a first state or a second state according to a level variation of an input voltage. Connection relations of the load units are correspondingly changed according to the level variation of the input voltage. In this way, the electronic device can be driven by an alternating-current voltage.
    Type: Application
    Filed: October 1, 2010
    Publication date: April 7, 2011
    Applicant: OPTROMAX ELECTRONICS CO., LTD
    Inventor: Kuo-Tso Chen
  • Patent number: 7916078
    Abstract: A Doppler frequency searching method and correlator are disclosed. In the present invention, before Doppler frequency removal, a received signal is converted into digital form having a first sampling rate. Then the signal is down-sampled to have a low sampling rate. The Doppler frequency searching is done by stages. Each stage is in charge of a portion of the Doppler frequency to be removed. The sampling rate can be further reduced in each stage. Each stage can have at least one Doppler frequency removal unit sharing the portion of Doppler frequency that the stage is to remove. Power consumption is reduced since Doppler frequency removal is executed with low sampling rate.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 29, 2011
    Assignee: MEDIATEK Inc.
    Inventor: Kun-tso Chen
  • Patent number: 7900218
    Abstract: The present invention relates to a tray used in an optical disc drive. At least two aligning means arranged in the tray for marking an aligning line at a front side and a back side of the tray, respectively. The aligning line is used for determining the dimensional accuracy of each component located on the front side and back side of the tray, respectively.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: March 1, 2011
    Inventors: Ke Rong Lin, Hsin-Tso Chen
  • Patent number: 7899126
    Abstract: The invention provides a signal receiver. The signal receiver comprises a code removal module, a carrier removal module, a Fast Fourier Transformation (FFT) module, and a signal processor. The code removal module removes a pseudo random noise code from a first signal to obtain a second signal. The carrier removal module generates a carrier signal with a frequency of an estimated carrier frequency, generates at least one delta carrier signal with a frequency of the carrier frequency plus a delta frequency, removes the carrier signal from the second signal to obtain a third signal, and removes the delta carrier signal from the second signal to obtain a fourth signal. The FFT module derives a series of first FFT values from the third signal, and derives a series of second FFT values from the fourth signal.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: March 1, 2011
    Assignee: Mediatek Inc.
    Inventor: Kun-Tso Chen
  • Patent number: 7885363
    Abstract: A correlation device and method for different modulated signals such as BPSK signal and BOC signal. According to the present invention, the correlation device has one or more sections. Each section comprises a correlation unit for executing correlation; a first signal path for passing a received signal directly to the correlation unit; a second signal path for transferring a BOC signal into a BPSK-like signal and passing the signal to the correlation unit. The correlation unit has a multiplexer for selecting to allow an output of one of the first and second signal paths to be subject to signal correlation. The correlation results of the respective sections can be combined.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: February 8, 2011
    Assignee: MEDIATEK Inc.
    Inventor: Kun-tso Chen
  • Publication number: 20110007128
    Abstract: A video capturing device includes a USB transmission interface interconnected with a computer to transmit information and a data processing device primarily formed by an H.264 coding module and an audio coding module. Through the H.264 coding module, the audio coding module and a real-time coding-decoding module in the computer, digital video information, an audio signal, a dynamic data and a static data are received respectively. These data are encoded, compressed, and then transmitted through the USB transmission interface to the computer and then to a remote server. When the compressed information from the remote server is received by the computer, the information is decoded by an H.264 decoding module and an audio decoding module in the computer or the data processing device and then transmitted to an external device. By this external data processing device, the present invention can be carried conveniently and applied to any kinds of computers.
    Type: Application
    Filed: June 24, 2010
    Publication date: January 13, 2011
    Inventor: YEN-TSO CHEN
  • Publication number: 20100309960
    Abstract: A Doppler frequency searching method and correlator are disclosed. In the present invention, before Doppler frequency removal, a received signal is converted into digital form having a first sampling rate. Then the signal is down-sampled to have a low sampling rate. The Doppler frequency searching is done by stages. Each stage is in charge of a portion of the Doppler frequency to be removed. The sampling rate can be further reduced in each stage. Each stage can have at least one Doppler frequency removal unit sharing the portion of Doppler frequency that the stage is to remove. Power consumption is reduced since Doppler frequency removal is executed with low sampling rate.
    Type: Application
    Filed: August 16, 2010
    Publication date: December 9, 2010
    Inventor: Kun-tso Chen
  • Publication number: 20100306357
    Abstract: A server, a computer system and a method for monitoring the computer system are provided. The computer system includes the server and a remote computer. The server includes a basic input/output system (BIOS) and a base management controller (BMC). The remote computer includes a processing unit. The BIOS executes a detection procedure to generate a status code, and the BMC outputs a management message according to the status code. The processing unit executes monitor software such that the processing unit generates a monitor message according to the management message.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 2, 2010
    Applicant: ATEN INTERNATIONAL CO., LTD.
    Inventor: Jung-Tso Chen
  • Patent number: 7839333
    Abstract: A satellite search method and a receiver implementing such a method are disclosed. In the present invention, a predetermined range is sampled into multiple possible positions or space-time points, each of which is defined by a specific position and a time sample. The possible positions or points are sieved according to a search result of a satellite selected from candidate satellites each time. By repeatedly doing so, the finally remaining position will approach a user's position, and accordingly the candidate satellites converge to the most possible ones as to facilitate satellite search.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: November 23, 2010
    Assignee: Mediatek Inc.
    Inventor: Kun-tso Chen