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).
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Patent number: 7320524Abstract: 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: GrantFiled: May 10, 2005Date of Patent: January 22, 2008Assignee: Benq CorporationInventors: Hsuan-Cheng Lee, Chang-Chien Li
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Publication number: 20070211480Abstract: 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: ApplicationFiled: March 7, 2007Publication date: September 13, 2007Applicant: BenQ CorporationInventors: Sheng-Chang Lu, Chang-Chien Li
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Patent number: 7258468Abstract: 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: GrantFiled: October 27, 2004Date of Patent: August 21, 2007Assignee: Benq CorporationInventors: Chih-Kang Peng, Wen-Chung Ho, Li-Kuan Wong, Chang-Chien Li
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Patent number: 7236354Abstract: 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: GrantFiled: March 12, 2004Date of Patent: June 26, 2007Assignee: BENQ CorporationInventors: Shih-Lung Hsu, Chang-Chien Li
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Patent number: 7207502Abstract: 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: GrantFiled: November 8, 2004Date of Patent: April 24, 2007Assignee: Benq CorporationInventors: Bang-Ji Wang, Chang-Chien Li, Chun-Ming Shen
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Patent number: 7181318Abstract: 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: GrantFiled: January 18, 2006Date of Patent: February 20, 2007Assignee: Benq CorporationInventors: Bang-Ji Wang, Chang-Chien Li, Tsung-Hsun Wu
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Publication number: 20060285331Abstract: 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: ApplicationFiled: March 29, 2006Publication date: December 21, 2006Inventors: Bang-Ji Wang, Chang-Chien Li
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Publication number: 20060161308Abstract: 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: ApplicationFiled: January 18, 2006Publication date: July 20, 2006Inventors: Bang-Ji Wang, Chang-Chien Li, Tsung-Hsun Wu
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Patent number: 7050123Abstract: 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: GrantFiled: December 6, 2002Date of Patent: May 23, 2006Assignee: Benq CorporationInventors: Chia-Yu Liu, Chang-Chien Li, Chih-Kang Peng, Wen-Chung Ho, Chi-Hong Chen
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Publication number: 20060043254Abstract: 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: ApplicationFiled: August 3, 2005Publication date: March 2, 2006Inventors: Bang-Ji Wang, Chang-Chien Li, Chun-Chieh Liao
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Publication number: 20060039128Abstract: 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: ApplicationFiled: August 18, 2005Publication date: February 23, 2006Inventors: Wen-Ping Chiu, Wen-Chung Ho, Chang-Chien Li
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Publication number: 20050254021Abstract: 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: ApplicationFiled: May 10, 2005Publication date: November 17, 2005Inventors: Hsuan-Cheng Lee, Chang-Chien Li
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Publication number: 20050141222Abstract: 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: ApplicationFiled: December 29, 2004Publication date: June 30, 2005Inventors: Shun-Chieh Yang, Bang-Ji Wang, Hung-Jen Wei, Tzu-Huan Hsu, Shen-Chang Lu, Chang-Chien Li
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Publication number: 20050103884Abstract: 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: ApplicationFiled: November 8, 2004Publication date: May 19, 2005Inventors: Bang-Ji Wang, Chang-Chien Li, Chun-Ming Shen
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Publication number: 20050099816Abstract: 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: ApplicationFiled: October 27, 2004Publication date: May 12, 2005Inventors: Chih-Kang Peng, Wen-Chung Ho, Li-Kuan Wong, Chang-Chien Li
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Publication number: 20050081533Abstract: 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: ApplicationFiled: July 12, 2004Publication date: April 21, 2005Inventors: Bang-Ji Wang, Chang-Chien Li
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Publication number: 20050002156Abstract: 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: ApplicationFiled: March 12, 2004Publication date: January 6, 2005Inventors: Shih-Lung Hsu, Chang-Chien Li
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Publication number: 20040084588Abstract: 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: ApplicationFiled: July 7, 2003Publication date: May 6, 2004Applicant: BENQ CORPORATIONInventors: Chia-Yu Liu, Lien-Wen Chang, Chang-Chien Li
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Publication number: 20030214740Abstract: 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: ApplicationFiled: May 2, 2003Publication date: November 20, 2003Applicant: Benq CorporationInventors: Li-Kuan Wong, Chia-Yu Liu, Chang-Chien Li
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Publication number: 20030169511Abstract: 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: ApplicationFiled: March 6, 2003Publication date: September 11, 2003Applicant: Benq CorporationInventors: Chia-Yu Liu, Chang-Chien Li