Patents by Inventor Shi Bai

Shi Bai 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: 20100102421
    Abstract: An integrated circuit chip includes an analog and/or RF circuit block and a seal ring structure surrounding the analog and/or RF circuit block. The seal ring structure comprises a continuous outer seal ring and an inner seal ring, wherein the inner seal ring comprises a gap that is situated in front of the analog and/or RF circuit block.
    Type: Application
    Filed: December 31, 2009
    Publication date: April 29, 2010
    Inventors: Tien-Chang Chang, Shi-Bai Chen, Tao Cheng, Yu-Hua Huang
  • Patent number: 7701737
    Abstract: A DC-AC converter includes a signal generating module, a first switch, a first capacitor, a transformer, and a trigger signal generating module. The signal generating module generates a pulse width modulation (PWM) signal according to a trigger signal. The first switch has a control terminal receiving the PWM signal, and a first terminal and a second terminal coupled to a first terminal and a second terminal of the first capacitor respectively. The transformer has a primary winding coupled to the second terminal of the first switch, and a secondary winding coupled to a load. The transformer generates a driving signal to the load according to a signal variation of the primary winding. The trigger signal generating module compares a first signal outputted from the second terminal of the first switch with a phase delay signal thereof and thereby generates the trigger signal for controlling the frequency of the PWM signal.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: April 20, 2010
    Assignee: Himax Technologies Limited
    Inventors: Shwang-Shi Bai, Hsiu-Na Hsieh, Shu-Ming Chang
  • Publication number: 20100059867
    Abstract: An integrated circuit chip includes an analog and/or RF circuit block, a digital circuit, and a seal ring structure surrounding and protecting the analog and/or RF circuit block. The seal ring structure comprises a continuous outer seal ring, and a discontinuous inner seal ring divided into at least a first portion and a second portion. The second portion is situated in front of the analog and/or RF circuit block for shielding a noise from interfering the analog and/or RF circuit block.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 11, 2010
    Inventors: Tien-Chang Chang, Shi-Bai Chen, Tao Cheng
  • Patent number: 7667302
    Abstract: An integrated circuit chip includes an analog and/or RF circuit block, a digital circuit, and a seal ring structure surrounding and protecting the analog and/or RF circuit block. The seal ring structure comprises a continuous outer seal ring, and a discontinuous inner seal ring divided into at least a first portion and a second portion. The second portion is situated in front of the analog and/or RF circuit block for shielding a noise from interfering the analog and/or RF circuit block.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: February 23, 2010
    Assignee: Mediatek Inc.
    Inventors: Tien-Chang Chang, Shi-Bai Chen, Tao Cheng
  • Publication number: 20090294944
    Abstract: A semiconductor device assembly includes a first semiconductor die, a second semiconductor die, at least one semiconductor package component or another semiconductor die, a first conductive element and a second conductive element. The first semiconductor die includes at least one bonding pad. The second semiconductor die includes a bonding pad module. The first conductive element is coupled between the bonding pad module of the second semiconductor die and the bonding pad of the first semiconductor die, and the second conductive element is coupled between the bonding pad module of the second semiconductor die and the semiconductor package component or the another semiconductor die, wherein the first semiconductor die is coupled to the semiconductor package component or the another semiconductor die via the bonding pad and the bonding pad module and the first and second conductive elements.
    Type: Application
    Filed: March 2, 2009
    Publication date: December 3, 2009
    Inventors: Yin-Chao Huang, Shi-Bai Chen, Kang-Wei Hsueh, Hung-Sung Li
  • Publication number: 20090273055
    Abstract: An electrical fuse and a method of forming the same are presented. A first-layer conductive line is formed over a base material. A via is formed over the first-layer conductive line. The via preferably comprises a barrier layer and a conductive material. A second-layer conductive line is formed over the via. A first external pad is formed coupling to the first-layer conductive line. A second external pad is formed coupling to the second-layer conductive line. The via, the first conductive line and the second conductive line are adapted to be an electrical fuse. The electrical fuse can be burned out by applying a current. The vertical structure of the preferred embodiment is suitable to be formed in any layer.
    Type: Application
    Filed: July 15, 2009
    Publication date: November 5, 2009
    Inventors: Kong-Beng Thei, Chung Long Cheng, Chung-Shi Liu, Harry Chuang, Shien-Yang Wu, Shi-Bai Chen
  • Publication number: 20090261747
    Abstract: The present invention is directed to an apparatus that drives a lighting system with multiple lamps. A phase shift mechanism is produced either by a digital method, an analog method, or a mixture of the two methods. In a digital method, phase shifts are generated by digital circuits comprising counters, a divider, an adder, and a comparator. The digital circuits analyze the signal and use the necessary information to form a series of phased driving signals. In an analog method, phase shifts are generated by analog circuits comprising ramp waveform generators, comparators, and at least one shot generator. Also, an apparatus for driving a lighting system with multiple lamps can be realized by mixing the two methods mentioned above.
    Type: Application
    Filed: July 1, 2009
    Publication date: October 22, 2009
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Shwang-Shi Bai, Yu-Pei Huang, Shen-Yao Liang
  • Patent number: 7605545
    Abstract: The present invention is directed to an apparatus that drives a lighting system with multiple lamps. A phase shift mechanism is produced either by a digital method, an analog method, or a mixture of the two methods. In a digital method, phase shifts are generated by digital circuits comprising counters, a divider, an adder, and a comparator. The digital circuits analyze the signal and use the necessary information to form a series of phased driving signals. In an analog method, phase shifts are generated by analog circuits comprising ramp waveform generators, comparators, and at least one shot generator. Also, an apparatus for driving a lighting system with multiple lamps can be realized by mixing the two methods mentioned above.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: October 20, 2009
    Assignee: Himax Technologies Limited
    Inventors: Shwang-Shi Bai, Yu-Pei Huang, Shen-Yao Liang
  • Publication number: 20090244946
    Abstract: A DC-AC converter includes a signal generating module, a first switch, a first capacitor, a transformer, and a trigger signal generating module. The signal generating module generates a pulse width modulation (PWM) signal according to a trigger signal. The first switch has a control terminal receiving the PWM signal, and a first terminal and a second terminal coupled to a first terminal and a second terminal of the first capacitor respectively. The transformer has a primary winding coupled to the second terminal of the first switch, and a secondary winding coupled to a load. The transformer generates a driving signal to the load according to a signal variation of the primary winding. The trigger signal generating module compares a first signal outputted from the second terminal of the first switch with a phase delay signal thereof and thereby generates the trigger signal for controlling the frequency of the PWM signal.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 1, 2009
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Shwang-Shi Bai, Hsiu-Na Hsieh, Shu-Ming Chang
  • Publication number: 20090243032
    Abstract: An e-fuse structure includes a cathode block; a plurality of cathode contact plugs on the cathode block; an anode block; a plurality of anode contact plugs on the cathode block; and a fuse link connecting the cathode block with the anode block, wherein a front row of the cathode contact plugs is disposed in close proximity to the fuse link thereby inducing a high thermal gradient at an interface between the cathode block and the fuse link.
    Type: Application
    Filed: March 27, 2008
    Publication date: October 1, 2009
    Inventor: Shi-Bai Chen
  • Publication number: 20090237346
    Abstract: An inverter circuit for driving a lamp and a backlight module using the same are provided. The inverter circuit includes a signal generation module, a switching unit, a first capacitor, a transformer and a first detecting module. The signal generation module generates a pulse width modulation (PWM) signal, wherein the duty cycle of the PWM signal is controlled by a feedback signal and a sensed signal. The switching unit has a control terminal receiving the PWM signal, and has a first current terminal and a second current terminal respectively coupled to a first terminal and a second terminal of the first capacitor. The transformer generates an AC driving signal to the lamp according to a signal variation of the primary winding coupled the first current terminal of the first transistor. The first detecting module generates the sensed signal according to the flowing current of the switching unit.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 24, 2009
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Shwang-Shi Bai, I-SHENG Lin, Hsiu-Na Hsieh, Shu-Ming Chang
  • Publication number: 20090189536
    Abstract: The invention is a driving apparatus and circuit for efficiently converting a direct current (DC) signal into an alternating current (AC) signal to drive a fluorescent lamp. A semi class E configuration which utilizes only one transistor is employed in the invention. The invention comprises a power transistor, a transformer wherein a primary winding is used as a load for the power transistor and a secondary winding is used to transfer energy to the load for the driving apparatus, i.e. the CCFL tube, and control means which extracts the frequency and current of the power transistor and corrects the deviation between the frequency of the power transistor and that of the control means.
    Type: Application
    Filed: January 30, 2009
    Publication date: July 30, 2009
    Applicant: HIMAX TECHNOLOGIES, INC.
    Inventors: Shwang-Shi Bai, Yu-Pei Huang, Shen-Yao Liang, Shu-Ming Chang
  • Patent number: 7564191
    Abstract: An inverter has an inductor, a capacitor, a switching device, a driving circuit and a transformer. A first terminal of the capacitor is connected to the inductor, and the switching device is connected between the first terminal of the capacitor and a ground terminal. The driving circuit is connected to the switching device, wherein the driving circuit is arranged to control the switching device to turn on or turn off; and a primary side of the transformer is connected between a second terminal of the capacitor and the ground terminal.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: July 21, 2009
    Assignee: Himax Technologies Limited
    Inventors: Shu-Ming Chang, Yu-Pei Huang, Shen-Yao Liang, Shwang-Shi Bai
  • Publication number: 20090108771
    Abstract: A driving system, includes: a power supply unit for providing a first current and a second current; a first transformer having a primary side coupled to the power supply unit and a secondary side coupled to a first current balancing circuit for driving a plurality of first lamps; a second transformer having a primary side coupled to the power supply unit and a secondary side coupled to a second current balancing circuit for driving a plurality of second lamps; a balancing control circuit coupled to the power supply unit for balancing the first and the second current so that the first current and the second current are substantially equal.
    Type: Application
    Filed: October 30, 2007
    Publication date: April 30, 2009
    Inventors: Shwang-Shi Bai, Shu-Ming Chang, Hsiu-Na Hsieh
  • Patent number: 7514882
    Abstract: A lamp driving device has a pulse width modulation circuit, a phase splitter and several switching circuits. The pulse width modulation circuit is arranged to generate a pulse width modulation signal. The phase splitter is coupled to the pulse width modulation circuit and arranged to split the pulse width modulation signal into several phased signals having different phases, wherein pulses of each phased signal are non-overlapping with those of another phased signal. The switching circuits are coupled to the phase splitter and are arranged to respectively receive one of the phased signals, wherein each switching circuit is controlled by the received phased signal.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: April 7, 2009
    Assignee: Himax Technologies Limited
    Inventors: Shu-Ming Chang, Yu-Pei Huang, Shen-Yao Liang, Shwang-Shi Bai
  • Patent number: 7498751
    Abstract: The invention is a driving apparatus and circuit for efficiently converting a direct current (DC) signal into an alternating current (AC) signal to drive a fluorescent lamp. A semi class E configuration which utilizes only one transistor is employed in the invention. The invention comprises a power transistor, a transformer wherein a primary winding is used as a load for the power transistor and a secondary winding is used to transfer energy to the load for the driving apparatus, i.e. the CCFL tube, and control means which extracts the frequency and current of the power transistor and corrects the deviation between the frequency of the power transistor and that of the control means.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: March 3, 2009
    Assignee: Himax Technologies Limited
    Inventors: Shwang-Shi Bai, Yu-Pei Huang, Shen-Yao Liang, Shu-Ming Chang
  • Patent number: 7483010
    Abstract: A frame-varying addressing method of a color sequential liquid crystal display is disclosed for display of successive frames. Each of the frames is composed of three subframes, and each of the subframes is composed of a plurality of scan lines. According to the frame-varying addressing method of the invention, the addressing sequence of scan lines for display of any frame or subframe is arranged in the same direction as those for display of its adjacent frames or subframes, and is selected to be different from those for display of its adjacent frames or subframes. Further, the addressing sequence for the frame (subframe) and its adjacent frames (subframes) can be periodically or randomly selected, so as to effectively balance or greatly eliminate the spatial intensity variations due to inconsistent response times at different portions of the panel.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: January 27, 2009
    Assignee: Himax Technologies Limited
    Inventors: Shwang-Shi Bai, Ming-Yeong Chen, Kuo-Tung Hsu
  • Publication number: 20080297499
    Abstract: An LCD (liquid crystal display) power supply includes an AC to DC converter circuit, a transformer, a DC to AC converter, and a feedback circuit. The AC to DC converter circuit couples an AC power supply to generate a DC signal. The DC to AC converter couples the DC signal to a primary side of the transformer and alternates polarities thereof so that an AC signal is generated on a secondary side of the transformer to supply for a load. The feedback circuit receives a first feedback signal indicative of power being supplied to the load and modulates the DC signal generated by the AC to DC converter circuit according to the first feedback signal.
    Type: Application
    Filed: May 30, 2007
    Publication date: December 4, 2008
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Shu-Ming CHANG, Shwang-Shi BAI, Shen-Yao LIANG
  • Publication number: 20080265791
    Abstract: A backlight module and a current providing circuit thereof are provided. The current providing circuit includes a signal generating unit, a switching unit, a first capacitor, a transformer and an output node. The signal generating unit generates a PWM signal according to a level of a power source. The switching unit determines whether a first signal end and a second signal end of the switching unit are conducted according to the PWM signal received by a control end of the switching unit. Following a switch performed by the switching unit, the first capacitor charges and discharges through a current path provided by a primary coil of the transformer. Thereby, a secondary coil of the transformer generates a corresponding AC voltage by sensing a current change in the primary coil and outputs the AC voltage through the output node.
    Type: Application
    Filed: March 13, 2008
    Publication date: October 30, 2008
    Applicant: HIMAX TECHNOLOGIES LIMITED
    Inventors: Shwang-Shi Bai, Hsiu-Na Hsieh, Shu-Ming Chang
  • Patent number: 7429835
    Abstract: A backlight driver circuit has a transformer, a switching circuit and a plurality of switch devices. The switching circuit couples a DC voltage to a primary side of the transformer and alternates polarities thereof so that an AC voltage is generated on a secondary side of the transformer to turn on the backlight blocks. The switch devices are respectively connected between one of the backlight blocks and the transformer, and the AC voltage turns the backlight blocks on when the switch devices are turned on.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: September 30, 2008
    Assignee: Himax Technologies Limited
    Inventors: Shu-Ming Chang, Yu-Pei Huang, Shen-Yao Liang, Shwang-Shi Bai