Patents by Inventor Bang-Ji Wang

Bang-Ji Wang 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: 7766519
    Abstract: Methods for cooling an illumination device are disclosed. The illumination device comprises a cathode, an anode and a cooling fan. A variation of a lamp voltage of the illumination device is first detected. The lamp voltage is the voltage difference between the cathode and the anode, and the variation of the lamp voltage is derived from comparing the lamp voltage which is detected with the lamp voltage at the first time the illumination device is used. A rotational rate of the cooling fan is then adjusted according to the variation of the lamp voltage.
    Type: Grant
    Filed: July 16, 2007
    Date of Patent: August 3, 2010
    Assignee: Qisda Corporation
    Inventor: Bang-Ji Wang
  • Publication number: 20080030141
    Abstract: Methods for cooling an illumination device are disclosed. The illumination device comprises a cathode, an anode and a cooling fan. A variation of a lamp voltage of the illumination device is first detected. The lamp voltage is the voltage difference between the cathode and the anode, and the variation of the lamp voltage is derived from comparing the lamp voltage which is detected with the lamp voltage at the first time the illumination device is used. A rotational rate of the cooling fan is then adjusted according to the variation of the lamp voltage.
    Type: Application
    Filed: July 16, 2007
    Publication date: February 7, 2008
    Applicant: BENQ CORPORATION
    Inventor: Bang-Ji Wang
  • Patent number: 7303318
    Abstract: A temperature control method for a display device comprising a lamp box for emitting a light, a fan for cooling down the display device and a digital image device for receiving the light from the lamp box and forming an image, comprises acquiring an operating time of the lamp box; calculating a temperature offset in accordance with the operating time of the lamp box; acquiring a temperature value of the digital image device; calculating a control value in accordance to the temperature value and the temperature offset; controlling the fan in accordance with the control value.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: December 4, 2007
    Assignee: BENQ Corporation
    Inventors: Bang-Ji Wang, Fu-Shiung Shih, Shun-Chieh Yang
  • Patent number: 7207502
    Abstract: A velocity-profile modifying device is located between a heat component and an air pouring apparatus. The air pouring apparatus pours the air into the heat component via an air moving track. The velocity-profile modifying device is set at the air moving track and is used for modifying a first velocity-profile of airflow by the air pouring apparatus to a second velocity-profile and further for making the air distribute evenly toward the heat component. By providing the velocity profile modifying device, a better distribution of the airflow toward the heat component and a stable temperature status of the heat component can be achieved.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: April 24, 2007
    Assignee: Benq Corporation
    Inventors: Bang-Ji Wang, Chang-Chien Li, Chun-Ming Shen
  • Patent number: 7181318
    Abstract: The invention discloses an electronic equipment including a cooling module, a receiving module, and a controller. The receiving module is used for receiving at least one geographic parameter relative to a location where the electronic equipment is located. The controller is used for controlling the cooling module with a predetermined manner corresponding to the at least one geographic parameter.
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: February 20, 2007
    Assignee: Benq Corporation
    Inventors: Bang-Ji Wang, Chang-Chien Li, Tsung-Hsun Wu
  • Publication number: 20060285331
    Abstract: A projecting device with energy recycling function comprises a power system, a light source, an optical engine, a lens and an energy recycling module. The light source which receives power from the power system is for generating a beam of light. The optical engine which receives power from the power system is for guiding the light generated by the light source. The lens is for receiving the light guided by the optical engine to generate a projecting image, and the light forms a light path from the light source to the lens via the optical engine. The energy recycling module is for recycling at least one of heat energy and light energy generated by at least one of the light source and the optical. engine.
    Type: Application
    Filed: March 29, 2006
    Publication date: December 21, 2006
    Inventors: Bang-Ji Wang, Chang-Chien Li
  • Publication number: 20060192727
    Abstract: A temperature control method for a display device comprising a lamp box for emitting a light, a fan for cooling down the display device and a digital image device for receiving the light from the lamp box and forming an image, comprises acquiring an operating time of the lamp box; calculating a temperature offset in accordance with the operating time of the lamp box; acquiring a temperature value of the digital image device; calculating a control value in accordance to the temperature value and the temperature offset; controlling the fan in accordance with the control value.
    Type: Application
    Filed: February 23, 2006
    Publication date: August 31, 2006
    Applicant: BENQ CORPORATION
    Inventors: Bang-Ji Wang, Fu-Shiung Shih, Shun-Chieh Yang
  • Publication number: 20060161308
    Abstract: The invention discloses an electronic equipment including a cooling module, a receiving module, and a controller. The receiving module is used for receiving at least one geographic parameter relative to a location where the electronic equipment is located. The controller is used for controlling the cooling module with a predetermined manner corresponding to the at least one geographic parameter.
    Type: Application
    Filed: January 18, 2006
    Publication date: July 20, 2006
    Inventors: Bang-Ji Wang, Chang-Chien Li, Tsung-Hsun Wu
  • Publication number: 20060043254
    Abstract: An anti-vibration system for an electronic device. A sensor detects vibration of the electronic device and converts the vibration to an electrical signal, and a controller connected to the sensor receives the electrical signal and transmits a control signal. An anti-vibration device is connected to the controller and activated by the control signal to cancel the vibration.
    Type: Application
    Filed: August 3, 2005
    Publication date: March 2, 2006
    Inventors: Bang-Ji Wang, Chang-Chien Li, Chun-Chieh Liao
  • Publication number: 20050141222
    Abstract: A lighting device and a temperature detection method thereof. The temperature detection method includes the following steps. A lighting device with an invisible-light filter is provided. The invisible-light filter reflects part of an invisible light of a light beam, generated by the lighting device, back to the lighting device to form a first beam. A thermally-sensitive detection device is then disposed in the lighting device, outside a propagation path of the first beam. The temperature in the lighting device is detected by the thermally-sensitive detection device.
    Type: Application
    Filed: December 29, 2004
    Publication date: June 30, 2005
    Inventors: Shun-Chieh Yang, Bang-Ji Wang, Hung-Jen Wei, Tzu-Huan Hsu, Shen-Chang Lu, Chang-Chien Li
  • Publication number: 20050103884
    Abstract: A velocity-profile modifying device is located between a heat component and an air pouring apparatus. The air pouring apparatus pours the air into the heat component via an air moving track. The velocity-profile modifying device is set at the air moving track and is used for modifying a first velocity-profile of airflow by the air pouring apparatus to a second velocity-profile and further for making the air distribute evenly toward the heat component. By providing the velocity profile modifying device, a better distribution of the airflow toward the heat component and a stable temperature status of the heat component can be achieved.
    Type: Application
    Filed: November 8, 2004
    Publication date: May 19, 2005
    Inventors: Bang-Ji Wang, Chang-Chien Li, Chun-Ming Shen
  • Publication number: 20050081533
    Abstract: An air-density increasing device is mounted an electronic apparatus having an air inlet, an air outlet and an exhaust face at the air outlet. When the exhaust fan is actuation, external air flows into the apparatus through the air-density increasing device and the air therewithin is expel via the air outlet. The amount of air flowing into the apparatus is greater than the amount of air flowing out of the apparatus by virtue of the air-density increasing device.
    Type: Application
    Filed: July 12, 2004
    Publication date: April 21, 2005
    Inventors: Bang-Ji Wang, Chang-Chien Li