Patents by Inventor Hung Tang

Hung Tang 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: 8487574
    Abstract: A fan rotary speed controlling device includes a base voltage generating circuit, a first voltage generating circuit, a second voltage generating circuit and a compensation controlling circuit. The base voltage generating circuit receives a pulse width modulation signal and outputs a base voltage signal. The first voltage generating circuit receives the pulse width modulation signal and generates a first voltage signal according to the pulse width modulation signal. The second voltage generating circuit receives a fan rotary speed signal and generates a second voltage signal according to the fan rotary speed signal. The compensation controlling circuit outputs a voltage deviation compensation signal according to the first voltage signal and the second voltage signal. Hence, the fan rotary speed controlling device provides a stable rotary speed.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: July 16, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Chin-Fa Chiu, Chung-Hung Tang
  • Publication number: 20130132619
    Abstract: A method for reducing transmission latency and a control module thereof are operated inside a host and at an external USB device. The method includes following steps: when the host receives an NRDY packet, storing a first data segment to be transferred by the host at the buffer storage unit inside the host; when the host receives an ERDY packet, capturing the first data segment stored at the buffer storage unit; and transferring the first data segment to the external USB device.
    Type: Application
    Filed: October 30, 2012
    Publication date: May 23, 2013
    Inventors: Wei-Yun Chang, Ying-Hung Tang, Chi-Che Tsai, Shu-Tzu Wang
  • Patent number: 8415907
    Abstract: A motor control apparatus and a motor control method determine whether the motor is in a back-pressure area so as to provide different rotation-speed control signals. When the fan is in the low duty cycle, a first circuit loop is switched on, so that the fan has more accurate rotation speed. When the fan is in the high duty cycle, a second circuit loop is switched on, so that the rotation speed of fan does not be limited to a constant rotation-speed as the fan enters the back-pressure area. Thus, the fan has larger airflow quantity and higher airflow pressure.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 9, 2013
    Assignee: Delta Electronics, Inc.
    Inventors: Chun-Lung Chiu, Ming-Shi Tsai, Po-Tsun Kuo, Chung-Hung Tang
  • Patent number: 8324849
    Abstract: A motor control apparatus includes a sensing module, a phase modulating module, a duty cycle modulating module and a driving module. The sensing module detects a motor to generate a sensing signal. The phase modulating module receives the sensing signal and generates a phase modulation signal in accordance with the sensing signal. The duty cycle modulating module receives the phase modulation signal and generates a duty cycle modulation signal in accordance with the phase modulation signal. The driving module receives the duty cycle modulation signal and generates a motor control signal for controlling the motor in accordance with the duty cycle modulation signal.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: December 4, 2012
    Assignee: Delta Electronics, Inc.
    Inventors: Po-Tsun Kuo, Wen-Chuan Ma, Chung-Hung Tang, Chun-Lung Chiu, Ming-Shi Tsai
  • Publication number: 20120112679
    Abstract: A fan rotary speed controlling device includes a first signal generating circuit, a second signal generating circuit, a pulse width modulation (PWM) circuit and a switching circuit. The first signal generating circuit receives a real frequency signal and a target frequency signal, and generates a first signal according to the real frequency signal and the target frequency signal. The second signal generating circuit generates a second signal according to the first signal. The PWM circuit generates a PWM signal according to the second signal. The switching circuit is electrically connected with the PWM circuit and outputs a control signal to control the rotary speed of the motor. Hence, the fan rotary speed controlling device boosts the accuracy and the stability of the fan rotary speed.
    Type: Application
    Filed: February 24, 2011
    Publication date: May 10, 2012
    Inventors: Chung-Hung TANG, Chien-Sheng Lin, Chin-Fa Chiu, Chun-Lung Chiu
  • Publication number: 20120086377
    Abstract: A motor control apparatus and a motor control method determine whether the motor is in a back-pressure area so as to provide different rotation-speed control signals. When the fan is in the low duty cycle, a first circuit loop is switched on, so that the fan has more accurate rotation speed. When the fan is in the high duty cycle, a second circuit loop is switched on, so that the rotation speed of fan does not be limited to a constant rotation-speed as the fan enters the back-pressure area. Thus, the fan has larger airflow quantity and higher airflow pressure.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Inventors: Chun-Lung CHIU, Ming-Shi Tsai, Po-Tsun Kuo, Chung-Hung Tang
  • Publication number: 20120086378
    Abstract: A fan rotary speed controlling device includes a base voltage generating circuit, a first voltage generating circuit, a second voltage generating circuit and a compensation controlling circuit. The base voltage generating circuit receives a pulse width modulation signal and outputs a base voltage signal. The first voltage generating circuit receives the pulse width modulation signal and generates a first voltage signal according to the pulse width modulation signal. The second voltage generating circuit receives a fan rotary speed signal and generates a second voltage signal according to the fan rotary speed signal. The compensation controlling circuit outputs a voltage deviation compensation signal according to the first voltage signal and the second voltage signal. Hence, the fan rotary speed controlling device provides a stable rotary speed.
    Type: Application
    Filed: January 4, 2011
    Publication date: April 12, 2012
    Inventors: Chin-Fa CHIU, Chung-Hung Tang
  • Patent number: 8111030
    Abstract: A motor control apparatus and a motor control method determine whether the motor is in a back-pressure area so as to provide different rotation-speed control signals. When the fan is in the low duty cycle, a first circuit loop is switched on, so that the fan has more accurate rotation speed. When the fan is in the high duty cycle, a second circuit loop is switched on, so that the rotation speed of fan does not be limited to a constant rotation-speed as the fan enters the back-pressure area. Thus, the fan has larger airflow quantity and higher airflow pressure.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: February 7, 2012
    Assignee: Delta Electronics, Inc.
    Inventors: Chun-Lung Chiu, Ming-Shi Tsai, Po-Tsun Kuo, Chung-Hung Tang
  • Patent number: 7915845
    Abstract: A motor control method and a motor control device are provided. The control method includes the steps of receiving a current feedback signal from a coil switching circuit, while the motor is rotating, for generating a separate signal, and comparing the current feedback signal and the separate signal for generating a motor control signal so as to control the operation of the motor.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: March 29, 2011
    Assignee: Delta Electronics, Inc.
    Inventors: Chung-Hung Tang, Chin-Fa Chiu, Chun-Lung Chiu
  • Patent number: 7688014
    Abstract: A communication protocol is employed between a movable barrier operator and an associated wall button using the traditional signaling wires connecting them. Implementing the communication protocol using the existing signaling wires also allows backward compatibility with the traditional push wall buttons that have a physical contact switch. In one embodiment, the communication protocol allows bi-directional communication between the moveable barrier operator and the wall button. The bi-directional embodiment of the protocol allows further communications, such as handshaking, signal confirmation and more advanced control between the wall unit and the barrier operator.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: March 30, 2010
    Inventors: Ping Hung Tang, Gallen Ka Leung Tsui, Philip Y. W. Tsui
  • Patent number: 7687410
    Abstract: The present invention relates to an inorganic wood-like material, which can be used as a sheet instead of wood, characterized that the said material mainly includes magnesite, magnesium chloride, lime powder, glass fiber, talcum powder and kaolin. The method of preparing the same includes pulverizing, mixing this material in different proportion and molding the mixture to obtain the inorganic wood-like material of the present invention. The material can exhibits a laminated structure comprising wear-resistant surface layer (11), an inorganic material layer (12) and a wear-resistant bottom layer (13). The material can be used for buildings. It is non-toxic, odorless, rustless, non-inflammable and non-oxidable. Its appearance looks like wood and it is easy to be processed. The material is a good environment-protecting material and will be widely accepted by industry and commerce.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: March 30, 2010
    Inventor: Hung Tang
  • Publication number: 20090289585
    Abstract: A motor control apparatus and a motor control method determine whether the motor is in a back-pressure area so as to provide different rotation-speed control signals. When the fan is in the low duty cycle, a first circuit loop is switched on, so that the fan has more accurate rotation speed. When the fan is in the high duty cycle, a second circuit loop is switched on, so that the rotation speed of fan does not be limited to a constant rotation-speed as the fan enters the back-pressure area. Thus, the fan has larger airflow quantity and higher airflow pressure.
    Type: Application
    Filed: September 30, 2008
    Publication date: November 26, 2009
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Chun-Lung CHIU, Ming-Shi TSAI, Po-Tsun KUO, Chung-Hung TANG
  • Publication number: 20090284196
    Abstract: A motor control apparatus includes a sensing module, a phase modulating module, a duty cycle modulating module and a driving module. The sensing module detects a motor to generate a sensing signal. The phase modulating module receives the sensing signal and generates a phase modulation signal in accordance with the sensing signal. The duty cycle modulating module receives the phase modulation signal and generates a duty cycle modulation signal in accordance with the phase modulation signal. The driving module receives the duty cycle modulation signal and generates a motor control signal for controlling the motor in accordance with the duty cycle modulation signal.
    Type: Application
    Filed: September 12, 2008
    Publication date: November 19, 2009
    Applicant: DELTA ELECTRONICS, INC
    Inventors: Po-Tsun KUO, Wen-Chuan MA, Chung-Hung TANG, Chun-Lung CHIU, Ming-Shi TSAI
  • Publication number: 20080292291
    Abstract: A motor control method and a motor control device are provided. The control method includes the steps of receiving a current feedback signal from a coil switching circuit, while the motor is rotating, for generating a separate signal, and comparing the current feedback signal and the separate signal for generating a motor control signal so as to control the operation of the motor.
    Type: Application
    Filed: April 29, 2008
    Publication date: November 27, 2008
    Inventors: Chung-Hung TANG, Chin-Fa Chiu, Chun-Lung Chiu
  • Patent number: 7338578
    Abstract: An insert ring for a wafer support inside a processing chamber for the processing, particularly dry etching, of semiconductor wafer substrates. The insert ring has a generally step-shaped cross-sectional configuration which defines a perpendicular gap or flow space between the insert ring and the wafer support. In the etching of substrates on the wafer support, the perpendicular gap or flow space defines a perpendicular flow path for plasma species. Consequently, flow of heavy plasma species against the outer wall of the wafer support is substantially hindered or reduced to reduce accumulation of polymer material on the inner surface of the insert ring and/or the outer wall of the wafer support.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: March 4, 2008
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Wei Huang, Shiow-Feng Changchien, Chia-Hung Tang
  • Publication number: 20070257897
    Abstract: A driver apparatus for offset cancel and an amplifier apparatus for offset cancel thereof are provided. The amplifier apparatus for offset cancel includes an offset cancellation unit and an amplifier unit. The offset cancellation unit determines the timing and state of an output control signal according to a latch signal and a polarity signal in a panel display device. The amplifier unit is coupled to the offset cancellation unit, so as to switch an input terminal signal and a feedback path of the amplifier unit according to the control signal output by the offset cancellation unit, thereby canceling the offsets of the amplifier apparatus.
    Type: Application
    Filed: August 18, 2006
    Publication date: November 8, 2007
    Applicant: DenMOS Technology Inc.
    Inventor: Yue-Hung Tang
  • Patent number: D661846
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: June 12, 2012
    Assignee: Sunbeam Products, Inc.
    Inventors: Channing Miller, Michael Scalpato, K. W. Chung, Wing-Hung Tang
  • Patent number: D666367
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: August 28, 2012
    Assignee: Sunbeam Products, Inc.
    Inventors: Channing Miller, Michael Scalpato, Kim Wah Chung, Wing-Hung Tang
  • Patent number: D669232
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: October 16, 2012
    Assignee: Sunbeam Products, Inc.
    Inventors: Kim Wah Chung, Channing Miller, Michael Scalpato, Wing-Hung Tang
  • Patent number: D677438
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: March 5, 2013
    Assignee: Sunbeam Products, Inc.
    Inventors: Channing Miller, Michael Scalpato, Kim Wah Chung, Wing-Hung Tang