Patents by Inventor Chang-Chien Li

Chang-Chien Li 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: 7320524
    Abstract: An air filtration device for projector includes a holder, a filter, and a rack. The rack is movably disposed in the holder for supporting the filter. When the rack moves to a first position, the rack is received within the holder. When the rack moves from the first position to a second position, the filter is released from the rack for replacement.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: January 22, 2008
    Assignee: Benq Corporation
    Inventors: Hsuan-Cheng Lee, Chang-Chien Li
  • Publication number: 20070211480
    Abstract: A projecting device includes a lamp, a supporting structure and a fan. The supporting structure includes a supporting portion and a flange. The supporting portion having a first chamber covers the lamp. The supporting portion has a first sidewall and an opposite second sidewall, and an entry and an exit are respectively disposed thereon. The flange extends from the supporting portion and surrounds a second chamber. The first and second chambers are connected to each other to form a space inside the supporting structure. The fan is for generating airflow running through the entry and the exit. The supporting structure further has an aperture for communicating the space and outside of the supporting structure.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 13, 2007
    Applicant: BenQ Corporation
    Inventors: Sheng-Chang Lu, Chang-Chien Li
  • Patent number: 7258468
    Abstract: The present invention provides an assembling structure for replaceably assembling a lamp to an image output device. The image output device includes a housing and a lens. The housing includes a first surface having an opening. The lens is positioned on the first surface. The structure of the present invention includes a body being movably disposed within the housing via the opening and a cover corresponding to the opening. The cover is positioned at a first position for covering the opening, and, as the cover is moved to a second position, the opening is exposed allowing the body to move into or move out of the housing through the opening.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: August 21, 2007
    Assignee: Benq Corporation
    Inventors: Chih-Kang Peng, Wen-Chung Ho, Li-Kuan Wong, Chang-Chien Li
  • Patent number: 7236354
    Abstract: A stand for supporting a display device. The stand includes a fixing plate, a hinge structure and a supporting structure. The fixing plate is connected to the display device. The hinge structure is connected to the fixing plate and has a hinge body. The supporting structure is connected to the hinge structure and has a first supporting element and a second supporting element. The first supporting element is rotatably connected to the second supporting element. The distance between the bottoms of the first and second supporting elements changes when either of the first and second supporting elements rotates.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: June 26, 2007
    Assignee: BENQ Corporation
    Inventors: Shih-Lung Hsu, Chang-Chien Li
  • 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: 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
  • Patent number: 7050123
    Abstract: An assembled housing of rear projection television comprising a foldable main framework and a foldable back cover is disclosed. The main framework is a flat structure as folded, while the main framework forms a ring structure as unfolded. The ring structure includes a front opening and a back opening, while the back cover is positioned in the back opening to form a chamber. The foldable design of the housing facilitates the users and the vendors to assemble the rear projection television, and also reduce the hardware space occupied by the housing, so as to reduce the cost of transportation compared to a traditional rear projection television.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: May 23, 2006
    Assignee: Benq Corporation
    Inventors: Chia-Yu Liu, Chang-Chien Li, Chih-Kang Peng, Wen-Chung Ho, Chi-Hong Chen
  • 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: 20060039128
    Abstract: A structure for hanging an electronic device is provided. The structure includes a supporting element, an adaptive element and a carrying element. The carrying element having a rail is disposed on the electronic device. The rail has an upper supporting plate. The adaptive element has a sliding axle. As the sliding axle slides into the rail, the sliding axle supports the upper supporting plate, and the upper supporting plane limits the vertical movement of the sliding axle. The adaptive element has a receiving space defining an opening. The supporting element passes through the opening and has a bottom plate disposed in the receiving space. In a first state, the bottom plate engages with the adaptive element, but in the second state, a distance exists between the bottom plate and the adaptive element allowing users to adjust the electronic device.
    Type: Application
    Filed: August 18, 2005
    Publication date: February 23, 2006
    Inventors: Wen-Ping Chiu, Wen-Chung Ho, Chang-Chien Li
  • Publication number: 20050254021
    Abstract: An air filtration device for projector includes a holder, a filter, and a rack. The rack is movably disposed in the holder for supporting the filter. When the rack moves to a first position, the rack is received within the holder. When the rack moves from the first position to a second position, the filter is released from the rack for replacement.
    Type: Application
    Filed: May 10, 2005
    Publication date: November 17, 2005
    Inventors: Hsuan-Cheng Lee, Chang-Chien Li
  • 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: 20050099816
    Abstract: The present invention provides an assembling structure for replaceably assembling a lamp to an image output device. The image output device includes a housing and a lens. The housing includes a first surface having an opening. The lens is positioned on the first surface. The structure of the present invention includes a body being movably disposed within the housing via the opening and a cover corresponding to the opening. The cover is positioned at a first position for covering the opening, and, as the cover is moved to a second position, the opening is exposed allowing the body to move into or move out of the housing through the opening.
    Type: Application
    Filed: October 27, 2004
    Publication date: May 12, 2005
    Inventors: Chih-Kang Peng, Wen-Chung Ho, Li-Kuan Wong, Chang-Chien Li
  • 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
  • Publication number: 20050002156
    Abstract: A stand for supporting a display device. The stand includes a fixing plate, a hinge structure and a supporting structure. The fixing plate is connected to the display device. The hinge structure is connected to the fixing plate and has a hinge body. The supporting structure is connected to the hinge structure and has a first supporting element and a second supporting element. The first supporting element is rotatably connected to the second supporting element. The distance between the bottoms of the first and second supporting elements changes when either of the first and second supporting elements rotates.
    Type: Application
    Filed: March 12, 2004
    Publication date: January 6, 2005
    Inventors: Shih-Lung Hsu, Chang-Chien Li
  • Publication number: 20040084588
    Abstract: A flat display with replaceable stand. The flat display comprises a first stand, a second stand detachably connected to the first stand, and a main body selectively supported by the second stand while the first stand is connected to the second stand or merely by the main body, wherein the first stand is hinged on the main body.
    Type: Application
    Filed: July 7, 2003
    Publication date: May 6, 2004
    Applicant: BENQ CORPORATION
    Inventors: Chia-Yu Liu, Lien-Wen Chang, Chang-Chien Li
  • Publication number: 20030214740
    Abstract: An installation frame for a color wheel assembly of a projection apparatus, for firmly installing the color wheel assembly on a chassis of the apparatus, includes a base to be fixed on the chassis, a holding end for fastening the color wheel assembly, and a body connecting the base and the holding end. In particularly, the body forms a triangle to have the base as a side of the triangle and the holding end positioned at an angle opposing to the side. By providing the installation frame, the color wheel assembly can be isolated in construction from a cooperated optical device so as to reduce the entire operational noise level of the apparatus.
    Type: Application
    Filed: May 2, 2003
    Publication date: November 20, 2003
    Applicant: Benq Corporation
    Inventors: Li-Kuan Wong, Chia-Yu Liu, Chang-Chien Li
  • Publication number: 20030169511
    Abstract: A shield assembly for a built-in lens set is introduced to a lens set built in a housing, in which the lens set has an optical head and the housing provides an aperture with respective to the optical head. A protrusive enclosure surrounding the aperture protrudes toward the optical head and is spaced from the optical head by a variable slim spacing. The shield assembly includes a shield ring for sleeving both the optical head and the protrusive enclosure and an elastic connecting unit for bridging the shield ring and the housing. By providing the shield ring to enclose always the spacing and the elastic connecting unit to engage elastically the lens set with the housing, the lens set can be prevented from dust-contaminating through the aperture, aged axial offsetting problem, and poor focus-adjusting performance caused by backlash existing in a driving mechanism.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 11, 2003
    Applicant: Benq Corporation
    Inventors: Chia-Yu Liu, Chang-Chien Li