Patents by Inventor Tao Chang

Tao 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).

  • Publication number: 20100102735
    Abstract: A light string in one embodiment includes a plurality of lamps connected in series, each lamp having a shunt Zener diode; and a rectifier. An anode of the Zener diode of each lamp is connected to a cathode of the LED thereof, the cathode of the Zener diode of each lamp is connected to the anode of the LED thereof, the cathode of the Zener diode of the lamp proximate the rectifier is connected to a positive terminal of an output of the rectifier, and the anode of the Zener diode of the lamp distal the rectifier is connected to a negative terminal of the output of the rectifier. The Zener diodes are replaced by resistors in another embodiment. Hence, a burned out LED of one lamp will not adversely affect a normal operation of the light string.
    Type: Application
    Filed: October 29, 2008
    Publication date: April 29, 2010
    Inventors: Chu-Cheng CHANG, Cheng-Fen Chang, Chen-Hsien Chang, Chen-Tao Chang
  • Publication number: 20100079076
    Abstract: An electrical circuit for use as a string of lights in one embodiment includes a rectifier for converting AC into DC; and a plurality of lamps connected in series, each lamp having an LED, and wherein at least one of the lamps each has a Zener diode connected in series with the LED, a positive terminal of the lamp proximate the rectifier is connected to a positive terminal of an output of the rectifier, and a negative terminal of the lamp distal the rectifier is connected to a negative terminal of the output of the rectifier. In another embodiment, the Zener diode is replaced with a resistor. Hence, no resistors are provided externally of the lamp.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 1, 2010
    Inventors: Chu-Cheng CHANG, Cheng-Fen Chang, Chen-Hsien Chang, Chen-Tao Chang
  • Publication number: 20100073045
    Abstract: A frequency detection circuit and a detection method thereof suitable for a clock data recovery (CDR) circuit are provided. The frequency detection circuit includes a phase detector, a first delayer, a frequency detector, and a logic circuit. The phase detector samples a data signal according to a first clock signal provided by the CDR circuit and provides a phase instruction signal according to the sampling. The first delayer delays the first clock signal to obtain a second clock signal. The frequency detector samples the data signal according to the second clock signal and provides a frequency instruction signal according to the sampling. The logic circuit generates a clock instruction signal according to the phase instruction signal and the frequency instruction signal. The CDR circuit adjusts the frequency of the first clock signal according to the status of the clock instruction signal.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 25, 2010
    Applicant: FARADAY TECHNOLOGY CORP.
    Inventors: Kuan-Yu Chen, Wen-Ching Hsiung, Cheng-Tao Chang, Chia-Liang Lai
  • Patent number: 7669063
    Abstract: A method of power down control (PDC) for a display device is to be implemented by a processor in a power down controller of the display device. The power down controller includes a main system, a main system power source, and a PDC power source. The method includes the steps of: (A) receiving power from the PDC power source, determining if the main system is to be activated, and proceeding to step (B) if affirmative; (B) turning on the main system power source, and activating the main system; (C) determining if operation in a power down mode is intended, and proceeding to step (D) if affirmative; and (D) turning off the main system power source to operate in the power down mode. Further, a state parameter is stored that allows the main system to be restored to the operating state prior to a power interruption.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: February 23, 2010
    Assignee: Top Victory Electronics (Taiwan) Co., Ltd.
    Inventors: Bin Cheng, Tao Chang, Ye Liu, Jian Song, Jiandong Wang, Bingru Dou
  • Publication number: 20090322236
    Abstract: A Christmas light string includes a plug; a first negative wire together with a first positive wire and the plug forming a circuit; incandescent light bulbs connected together along the first positive and negative wires to form a first loop; a rectifier having a positive input connected to the first incandescent light bulb via a second positive wire and a negative input connected to the last incandescent light bulb via a second negative wire; an end enlargement connected to the positive input of the rectifier via the second positive wire and the negative input of the rectifier via the second negative wire; and LED bulbs forming a second loop between the positive output and the negative output of the rectifier. An optimum illumination is rendered by mixing cold light with warm light. Moreover, mating sockets are adapted to receive the incandescent light bulbs only.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Inventors: Chu-Cheng Chang, Cheng-Fen Chang, Chen-Hsien Chang, Chen-Tao Chang
  • Publication number: 20090300330
    Abstract: A data processing system and method are disclosed. The system comprises an instruction-fetch stage where an instruction is fetched and a specific instruction is input into decode stage; a decode stage where said specific instruction indicates that contents of a register in a register file are used as an index, and then, the register file pointed to by said index is accessed based on said index; an execution stage where an access result of said decode stage is received, and computations are implemented according to the access result of the decode stage.
    Type: Application
    Filed: May 21, 2009
    Publication date: December 3, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xiao Tao Chang, Qiang Liu
  • Patent number: 7597454
    Abstract: A Christmas light string is disclosed and includes a plug a power socket, a first cord electrically interconnecting the plug and the power socket, a second cord extending from the plug and being electrically connected thereto, an adapter proximate the plug and mounted in the second cord, and a plurality of lamps electrically connected in series or parallel and mounted along the second cord and distal the plug. The plug of another Christmas light string is adapted to electrically connect to the power socket by insertion. Hence, a number of Christmas light strings can be assembled together to form a lighting unit having an increased length.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: October 6, 2009
    Inventors: Chu-Cheng Chang, Cheng-Fen Chang, Chen-Hsien Chang, Chen-Tao Chang
  • Publication number: 20090207558
    Abstract: A holder is for holding an electronic device, and includes a housing, a support frame, and a resilient element. The housing is disposed on a rear face of the electronic device, defines a receiving space, and includes a barrier plate abutting against one side of the electronic device. The support frame is disposed in the receiving space and is movable relative to the housing. The support frame includes a catch member which is exposed from the housing, which is disposed opposite to the barrier plate, and which is engaged with a retaining hole in the rear face, and a push button portion exposed from the housing. The push button portion is operable to permit disengagement of the catch member from the retaining hole. The resilient element is disposed in the receiving space to provide the catch member with a restoring spring force.
    Type: Application
    Filed: November 12, 2008
    Publication date: August 20, 2009
    Applicant: WISTRON CORPORATION
    Inventors: Ta-Chun Hsiung, Chi-Chun Chiang, Ming-Tao Chang, Chu-Cheng Yang
  • Publication number: 20090193424
    Abstract: The present invention discloses a method of processing instructions in a pipeline-based central processing unit, wherein the pipeline is partitioned into base pipeline stages and enhanced pipeline stages according to functions, the base pipeline stages being activated all the while, and the enhanced pipeline stages being activated or shutdown according to requirements for performance of a workload. The present invention further discloses a method of processing instructions in a pipeline-based central processing unit, wherein the pipeline is partitioned into base pipeline stages and enhanced pipeline stages according to functions, each pipeline stage being partitioned into a base module and at least one enhanced module, the base module being activated all the while, and the enhanced module being activated or shutdown according to requirements for performance of a workload.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 30, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Wen Bo Shen, Peng Shao, Yu Li, Xiao Tao Chang, Yi Ge, Huayong Wang, Huan Hao Zou
  • Publication number: 20080218092
    Abstract: A Christmas light string is disclosed and includes a plug a power socket, a first cord electrically interconnecting the plug and the power socket, a second cord extending from the plug and being electrically connected thereto, an adapter proximate the plug and mounted in the second cord, and a plurality of lamps electrically connected in series or parallel and mounted along the second cord and distal the plug. The plug of another Christmas light string is adapted to electrically connect to the power socket by insertion. Hence, a number of Christmas light strings can be assembled together to form a lighting unit having an increased length.
    Type: Application
    Filed: March 6, 2007
    Publication date: September 11, 2008
    Inventors: Chu-Cheng Chang, Cheng-Fen Chang, Chen-Hsien Chang, Chen-Tao Chang
  • Publication number: 20070294545
    Abstract: A method of power down control (PDC) for a display device is to be implemented by a processor in a power down controller of the display device. The power down controller includes a main system, a main system power source, and a PDC power source. The method includes the steps of: (A) receiving power from the PDC power source, determining if the main system is to be activated, and proceeding to step (B) if affirmative; (B) turning on the main system power source, and activating the main system; (C) determining if operation in a power down mode is intended, and proceeding to step (D) if affirmative; and (D) turning off the main system power source to operate in the power down mode.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 20, 2007
    Applicant: TOP VICTORY ELECTRONICS (TAIWAN) CO., LTD.
    Inventors: Bin Cheng, Tao Chang, Ye Liu, Jian Song, Jiandong Wang, Bingru Dou
  • Patent number: 7310310
    Abstract: Systems and methods are described for bonding asynchronous transfer mode permanent virtual circuits using a multi-link segmentation and reassembly sublayer. A method includes: transforming a plurality of streams of asynchronous transfer mode cells into a stream of bonded asynchronous transfer mode cells, the plurality of streams of asynchronous transfer mode cells provided by a first plurality of permanent virtual circuits; demultiplexing the stream of bonded asynchronous transfer mode cells into a plurality of streams of inverse multiplexed bonded asynchronous transfer mode cells; and transmitting the plurality of streams of inverse multiplexed bonded asynchronous transfer mode cells to a remote location via a second plurality of permanent virtual circuits. The transmitted plurality of streams of inverse multiplexed bonded asynchronous transfer mode cells can be multiplexed and transformed into a plurality of multiplexed streams of asynchronous transfer mode cells after transmitting.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: December 18, 2007
    Assignee: Symmetricom, Inc.
    Inventors: Kishan Shenoi, Chi-Tao Chang
  • Patent number: 6969483
    Abstract: The present invention provides a polymer blend for fabricating monolayer films or a layer within a multilayer film. The blend has a first component and a second component. The first component is selected from the group of: (1) an ethylene and ?-olefin copolymer having a density of less than about 0.915 g/cc, (2) lower alkyl acrylates, (3) lower alkyl substituted alkyl acrylates and (4) ionomers. The first component should be present in an amount from about 99% to about 55% by weight of the blend. The second component in an amount by weight of the blend from 45% to about 1% and consists of one or more polymers of the group: (1) propylene containing polymers, (2) polybutene polymers, (3) polymethylpentene polymers, (4) cyclic olefin containing polymers and (5) bridged polycyclic hydrocarbon containing polymers.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: November 29, 2005
    Assignee: Baxter International Inc.
    Inventors: Lecon Woo, Sherwin Shang, Michael T. K. Ling, Yuan-pang Samuel Ding, Tahua Yang, Craig Sanford, Tao Chang
  • Patent number: D528468
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: September 19, 2006
    Assignee: Segway LLC
    Inventors: Richard W. Arling, Shih-Tao Chang, J. Douglas Field, Joseph A. Hoell, Jr., W. Patrick Kelly, Ronald K. Reich, Scott Waters, Kevin Webber
  • Patent number: D551592
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: September 25, 2007
    Assignee: Segway Inc.
    Inventors: Shih-Tao Chang, Scott Waters
  • Patent number: D551722
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: September 25, 2007
    Assignee: Segway LLC
    Inventors: Shih-Tao Chang, Scott Waters
  • Patent number: D493127
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: July 20, 2004
    Assignee: Segway LLC
    Inventors: Scott Waters, Shin-Tao Chang, Richard W. Arling, W. Patrick Kelly
  • Patent number: D493128
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: July 20, 2004
    Assignee: Segway LLC
    Inventors: Scott Waters, Shin-Tao Chang, Ronald K. Reich, Richard W. Arling, Kevin Webber, Joseph A. Hoell, Jr., J. Douglas Field
  • Patent number: D493392
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: July 27, 2004
    Assignee: Segway LLC
    Inventors: Scott Waters, Shin-Tao Chang, Richard W. Arling, Kevin Webber
  • Patent number: D493747
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: August 3, 2004
    Assignee: Segway LLC
    Inventors: Scott Waters, Shin-Tao Chang