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).
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Patent number: 8552677Abstract: 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: GrantFiled: February 24, 2011Date of Patent: October 8, 2013Assignee: Delta Electronics, Inc.Inventors: Chung-Hung Tang, Chien-Sheng Lin, Chin-Fa Chiu, Chun-Lung Chiu
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Patent number: 8487574Abstract: 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: GrantFiled: January 4, 2011Date of Patent: July 16, 2013Assignee: Delta Electronics, Inc.Inventors: Chin-Fa Chiu, Chung-Hung Tang
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Publication number: 20130132619Abstract: 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: ApplicationFiled: October 30, 2012Publication date: May 23, 2013Inventors: Wei-Yun Chang, Ying-Hung Tang, Chi-Che Tsai, Shu-Tzu Wang
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Patent number: 8415907Abstract: 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: GrantFiled: December 19, 2011Date of Patent: April 9, 2013Assignee: Delta Electronics, Inc.Inventors: Chun-Lung Chiu, Ming-Shi Tsai, Po-Tsun Kuo, Chung-Hung Tang
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Patent number: 8324849Abstract: 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: GrantFiled: September 12, 2008Date of Patent: December 4, 2012Assignee: Delta Electronics, Inc.Inventors: Po-Tsun Kuo, Wen-Chuan Ma, Chung-Hung Tang, Chun-Lung Chiu, Ming-Shi Tsai
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Publication number: 20120112679Abstract: 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: ApplicationFiled: February 24, 2011Publication date: May 10, 2012Inventors: Chung-Hung TANG, Chien-Sheng Lin, Chin-Fa Chiu, Chun-Lung Chiu
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Publication number: 20120086377Abstract: 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: ApplicationFiled: December 19, 2011Publication date: April 12, 2012Inventors: Chun-Lung CHIU, Ming-Shi Tsai, Po-Tsun Kuo, Chung-Hung Tang
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Publication number: 20120086378Abstract: 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: ApplicationFiled: January 4, 2011Publication date: April 12, 2012Inventors: Chin-Fa CHIU, Chung-Hung Tang
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Patent number: 8111030Abstract: 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: GrantFiled: September 30, 2008Date of Patent: February 7, 2012Assignee: Delta Electronics, Inc.Inventors: Chun-Lung Chiu, Ming-Shi Tsai, Po-Tsun Kuo, Chung-Hung Tang
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Patent number: 7915845Abstract: 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: GrantFiled: April 29, 2008Date of Patent: March 29, 2011Assignee: Delta Electronics, Inc.Inventors: Chung-Hung Tang, Chin-Fa Chiu, Chun-Lung Chiu
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Patent number: 7688014Abstract: 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: GrantFiled: April 10, 2007Date of Patent: March 30, 2010Inventors: Ping Hung Tang, Gallen Ka Leung Tsui, Philip Y. W. Tsui
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Patent number: 7687410Abstract: 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: GrantFiled: November 20, 2006Date of Patent: March 30, 2010Inventor: Hung Tang
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Publication number: 20090289585Abstract: 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: ApplicationFiled: September 30, 2008Publication date: November 26, 2009Applicant: DELTA ELECTRONICS, INC.Inventors: Chun-Lung CHIU, Ming-Shi TSAI, Po-Tsun KUO, Chung-Hung TANG
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Publication number: 20090284196Abstract: 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: ApplicationFiled: September 12, 2008Publication date: November 19, 2009Applicant: DELTA ELECTRONICS, INCInventors: Po-Tsun KUO, Wen-Chuan MA, Chung-Hung TANG, Chun-Lung CHIU, Ming-Shi TSAI
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Publication number: 20080292291Abstract: 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: ApplicationFiled: April 29, 2008Publication date: November 27, 2008Inventors: Chung-Hung TANG, Chin-Fa Chiu, Chun-Lung Chiu
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Patent number: 7338578Abstract: 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: GrantFiled: January 20, 2004Date of Patent: March 4, 2008Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.Inventors: Chih-Wei Huang, Shiow-Feng Changchien, Chia-Hung Tang
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Patent number: D661846Type: GrantFiled: December 13, 2011Date of Patent: June 12, 2012Assignee: Sunbeam Products, Inc.Inventors: Channing Miller, Michael Scalpato, K. W. Chung, Wing-Hung Tang
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Patent number: D666367Type: GrantFiled: April 17, 2012Date of Patent: August 28, 2012Assignee: Sunbeam Products, Inc.Inventors: Channing Miller, Michael Scalpato, Kim Wah Chung, Wing-Hung Tang
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Patent number: D669232Type: GrantFiled: December 13, 2011Date of Patent: October 16, 2012Assignee: Sunbeam Products, Inc.Inventors: Kim Wah Chung, Channing Miller, Michael Scalpato, Wing-Hung Tang
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Patent number: D677438Type: GrantFiled: April 17, 2012Date of Patent: March 5, 2013Assignee: Sunbeam Products, Inc.Inventors: Channing Miller, Michael Scalpato, Kim Wah Chung, Wing-Hung Tang