Patents by Inventor Wei-Cheng Chang
Wei-Cheng Chang 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: 8231188Abstract: A slide assembly includes a first rail, a second rail, an engaging member and a resilient member. The first rail includes an extension wall and the second rail is slidably connected to the first rail, and has a passage. The engaging member is pivotably connected to the second rail, and has a first end and a second end. The first end includes a stop. The resilient member is connected between the second end of the engaging member and the second rail so as to provide a resilient force to the engaging member so that the stop of the first end of the engaging member is inserted into the passage of the second rail by the resilient force from the resilient member. The stop is longitudinally located corresponding to the extension wall of the first rail. When the second rail is slid to a pre-set position relative to the first rail, the stop of the engaging member contacts the extension wall of the first rail to form a stop point.Type: GrantFiled: July 15, 2011Date of Patent: July 31, 2012Assignees: King Slide Works Co., Ltd., King Slide Technology Co., Ltd.Inventors: Ken-Ching Chen, Wei-Cheng Chang, Chun-Chiang Wang
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Publication number: 20120072921Abstract: An image-data-processing device for processing first image data includes an image processing chip with a first memory and a second memory. The image processing chip further includes a data managing unit and a coding module, wherein the memory space of the second memory is greater than the memory space of the first memory. The data managing unit receives the first image data from an image sensor and transmits the image data to the encoding module, wherein the encoding module generates a second image data based on the first image data received. The data managing unit then selectively stores the second image data in the first memory or the second memory.Type: ApplicationFiled: August 3, 2011Publication date: March 22, 2012Inventor: Wei-Cheng CHANG CHIEN
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Patent number: 8091374Abstract: A weighing type ice vending machine includes an ice cube formation device installed in a machine body for supplying a specific weight of ice cubes after coins are inputted, and a body composed of a storage bucket, an output device, a weight sensing module and a control loop. Pure water is put into an ice tray in the machine body and condensed into ice cubes which are gathered into a storage bucket for a cold storage. A user puts a user's container on a weighing scale of the weight sensing module at an outlet of the machine body outlet and inserts coins whose dollar amount information is displayed. The quantity of outputted ice cubes is calculated and outputted automatically, and then the ice supply is stopped. The quantity of remained ice cubes in the machine body is recorded automatically, such that the ice cube will be produced again timely and the supply of ice cubes will be stopped temporarily.Type: GrantFiled: February 19, 2009Date of Patent: January 10, 2012Assignee: Dongguan Jiafeng Mechanical Equipment Co., LtdInventor: Wei-Cheng Chang
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Publication number: 20110116725Abstract: A data compression system and a data compression method using the same are provided. The data compression method includes acquiring original data from a memory and performs image processing and quantization on the original data to transform the original data into a quantization matrix. The data compression method then transforms the quantization matrix into a digital sequence based on a coding table and compares the data volume of the digital sequence and a target volume to generate a volume difference. The data compression method transforms the digital sequence into an inverse quantization matrix based on the volume difference and then transforms the inverse quantization matrix into a modified digital sequence based on the volume difference. The data compression method repeats the processes until the data volume of the digital sequence is substantially equal to a target volume or within an acceptable range of the target volume.Type: ApplicationFiled: November 3, 2010Publication date: May 19, 2011Inventors: Cheng-Ta Chiang, Wei-Cheng Chang Chien, Wei-Hao Yuan, Chieh-Yuan Hsu, Te-Wei Lee, Tzu-Yun Kuo, Wei-Cheng Chang
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Patent number: 7894791Abstract: The present invention discloses a multi-channel multi-media data processing method, comprising the steps of: providing a demodulator circuit and a multi-media processing circuit, the multi-media processing circuit including a DRAM; receiving multi-channel analog signals, and performing analog-to-digital conversion and demodulation on the signals by the demodulator circuit; storing the converted and demodulated multi-channel signals in the DRAM; and reading the signals of at least one channel from the DRAM.Type: GrantFiled: August 10, 2007Date of Patent: February 22, 2011Assignee: Alpha Imaging Technology CorporationInventors: Chao-Chung Chang, Ming-Feng Yu, Ming-Jun Hsiao, Wei-Hao Yuan, Wei-Cheng Chang Chien
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Publication number: 20100205985Abstract: A weighing type ice vending machine includes an ice cube formation device installed in a machine body for supplying a specific weight of ice cubes after coins are inputted, and a body composed of a storage bucket, an output device, a weight sensing module and a control loop. Pure water is put into an ice tray in the machine body and condensed into ice cubes which are gathered into a storage bucket for a cold storage. A user puts a user's container on a weighing scale of the weight sensing module at an outlet of the machine body outlet and inserts coins whose dollar amount information is displayed. The quantity of outputted ice cubes is calculated and outputted automatically, and then the ice supply is stopped. The quantity of remained ice cubes in the machine body is recorded automatically, such that the ice cube will be produced again timely and the supply of ice cubes will be stopped temporarily.Type: ApplicationFiled: February 19, 2009Publication date: August 19, 2010Applicant: DONGGUAN JIAFENG MECHANICAL EQUIPMENT CO., LTD.Inventor: Wei-Cheng CHANG
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Patent number: 7588467Abstract: An electrical card connector includes an insulating housing (2), a shell (1) mounted on the insulating housing, a plurality of terminals (3). The insulating housing includes a plurality of terminal rooms (23) arranged in two rows along a card inserting direction and a middle part (24) defined between the two rows of terminal rooms. The terminals retained in corresponding terminal rooms of the insulating housing. The shell mounted over the insulating housing to define a card slot, the shell comprising a main body (11), the main body having an embossment (112) protruding into the card slot for engaging with the card, the embossment being situated rightly above the middle part of the insulating housing to press on an inserted card and to distance other portion of the main body from the card.Type: GrantFiled: November 28, 2007Date of Patent: September 15, 2009Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: Wei-Cheng Chang
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Patent number: 7503805Abstract: An electrical card connector (100) mounted on a Printed Circuit Board includes an insulating housing (1), a shell (2) mounted on the insulating housing and a terminal module (3). The insulating housing defines an accommodating room (14), and the shell defines a receiving slot (5) with the insulating housing for a card inserted. The terminal module comprises a plurality of terminals (30) and a position section (32) retained on the PCB. Wherein the terminal module is soldered on the PCB directly, and receiving in the accommodating room of the insulating housing separately.Type: GrantFiled: November 20, 2007Date of Patent: March 17, 2009Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Wei-Cheng Chang, Ming-Lun Kuo
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Patent number: 7503782Abstract: A card connector comprises an insulative housing (1) receiving a plurality of terminals (4), a shield plate (2) assembled on the insulative housing, an ejector (3) coupled to the insulative housing and a detecting switch assembled on the insulative housing. The ejector comprises a movable slider (32). The slider has a triangular plat (322) is capable of moving along a card inserting direction by the card. The detecting switch has a passive pin (42) and an active pin (43), the active pin has a resilient curved part (422) projecting into a moving track of triangular plate, and the curved part is capable of moving by the triangular plate.Type: GrantFiled: July 31, 2007Date of Patent: March 17, 2009Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: Wei-Cheng Chang
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Publication number: 20090046081Abstract: A device and method is provided to selectively modify the transmission performance of a frame data. Through a parallel transmission interface, the frame data is transmitted under a corresponding interface protocol and transmitted toward an image display. The method first detects a data size of the frame data and then provides a transmission control signal based on the detection of the data size. Next, selectively divide the frame data by a factor M based on the transmission control signal. Furthermore, transmit the divided frame data at a raised clock rate based on the factor M. Afterwards, temporarily store the divided frame data about to be transmitted toward the image display until the whole frame data is transmitted.Type: ApplicationFiled: April 24, 2008Publication date: February 19, 2009Applicant: ALPHA IMAGING TECHNOLOGY CORP.Inventors: Hsiu-Wen Wang, Wei-Hao Yuan, Wei-Cheng Chang Chien, Ming-Jun Hsiao
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Publication number: 20090042523Abstract: The present invention discloses a multi-media data processing method for use in an integrated circuit having an error correction circuit, the method comprising the steps of: receiving broadcasted analog data; converting the analog data to digital data; and storing the digital data into a main memory without error correction, wherein the digital data stored in the main memory are subject to error correction only when it is required, but are not subject to error correction if it is not required.Type: ApplicationFiled: August 9, 2007Publication date: February 12, 2009Inventors: Chao-Chung Chang, Ming-Feng Yu, Ming-Jun Hsiao, Wei-Hao Yuan, Wei-Cheng Chang Chien
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Patent number: 7435119Abstract: An electrical card connector (1) includes an insualtive housing (12) receiving a number of terminals (16), a cover (14) pivotally mounted on the insulative housing and moving between an open and a closed position, and two detecting mechanisms. The cover comprises a base portion (141) and a pair of lateral portions (142) extending from opposite sides of the base portion, the insualtive housing and the cover together defines a receiving space. One of the detecting mechanisms (18) is located under one lateral portion of the cover, and the other one of the detecting mechanisms is located at the inside of the receiving space.Type: GrantFiled: October 30, 2007Date of Patent: October 14, 2008Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Wei-Cheng Chang, Chien-Jen Ting
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Publication number: 20080124979Abstract: An electrical card connector includes an insulating housing (2), a shell (1) mounted on the insulating housing, a plurality of terminals (3). The insulating housing includes a plurality of terminal rooms (23) arranged in two rows along a card inserting direction and a middle part (24) defined between the two rows of terminal rooms. The terminals retained in corresponding terminal rooms of the insulating housing. The shell mounted over the insulating housing to define a card slot, the shell comprising a main body (11), the main body having an embossment (112) protruding into the card slot for engaging with the card, the embossment being situated rightly above the middle part of the insulating housing to press on an inserted card and to distance other portion of the main body from the card.Type: ApplicationFiled: November 28, 2007Publication date: May 29, 2008Inventor: Wei-Cheng Chang
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Publication number: 20080119072Abstract: An electrical card connector (100) mounted on a Printed Circuit Board includes an insulating housing (1), a shell (2) mounted on the insulating housing and a terminal module (3). The insulating housing defines an accommodating room (14), and the shell defines a receiving slot (5) with the insulating housing for a card inserted. The terminal module comprises a plurality of terminals (30) and a position section (32) retained on the PCB. Wherein the terminal module is soldered on the PCB directly, and receiving in the accommodating room of the insulating housing separately.Type: ApplicationFiled: November 20, 2007Publication date: May 22, 2008Inventors: Wei-Cheng Chang, Ming-Lun Kuo
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Publication number: 20080102680Abstract: An electrical card connector (1) includes an insualtive housing (12) receiving a number of terminals (16), a cover (14) pivotally mounted on the insulative housing and moving between an open and a closed position, and two detecting mechanisms. The cover comprises a base portion (141) and a pair of lateral portions (142) extending from opposite sides of the base portion, the insualtive housing and the cover together defines a receiving space. One of the detecting mechanisms (18) is located under one lateral portion of the cover, and the other one of the detecting mechanisms is located at the inside of the receiving space.Type: ApplicationFiled: October 30, 2007Publication date: May 1, 2008Inventors: Wei-Cheng Chang, Chien-Jen Ting
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Publication number: 20080091919Abstract: The present invention discloses a multi-channel multi-media data processing method, comprising the steps of: providing a demodulator circuit and a multi-media processing circuit, the multi-media processing circuit including a DRAM; receiving multi-channel analog signals, and performing analog-to-digital conversion and demodulation on the signals by the demodulator circuit; storing the converted and demodulated multi-channel signals in the DRAM; and reading the signals of at least one channel from the DRAM.Type: ApplicationFiled: August 10, 2007Publication date: April 17, 2008Inventors: Chao-Chung Chang, Ming-Feng Yu, Ming-Jun Hsiao, Wei-Hao Yuan, Wei-Cheng Chang Chien
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Patent number: 7338324Abstract: A card connector comprises an insulating housing, a plurality of contacts, an ejector and a pressing member. The insulating housing has a rear wall and a pair of arms extending from lateral ends of the rear wall; the ejector is received on one of the arm and comprises a slider movable in a card insertion/ejecting direction, a spring and a guiding pin, the slider defines a heart groove on an outside surface thereof, and the guiding pin and the heart groove forms a locking member to lock the slider in a final position. The pressing member has a retaining portion and a pressing portion, the retaining portion is retained to a bottom surface of the insulating housing by a hot-melt way, the pressing member presses the guiding pin toward the heart groove to prevent the guiding pin from jumping out from the heart groove.Type: GrantFiled: December 26, 2006Date of Patent: March 4, 2008Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Hsueh-Lung Hsiao, Wei-Cheng Chang
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Publication number: 20080026619Abstract: A card connector comprises an insulative housing (1) receiving a plurality of terminals (4), a shield plate (2) assembled on the insulative housing, an ejector (3) coupled to the insulative housing and a detecting switch assembled on the insulative housing. The ejector comprises a movable slider (32). The slider has a triangular plat (322) is capable of moving along a card inserting direction by the card. The detecting switch has a passive pin (42) and an active pin (43), the active pin has a resilient curved part (422) projecting into a moving track of triangular plate, and the curved part is capable of moving by the triangular plate.Type: ApplicationFiled: July 31, 2007Publication date: January 31, 2008Inventor: Wei-Cheng Chang
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Patent number: 7307370Abstract: The present invention relates to a long-stroke nanopositioning device, comprising: a piezoelectric tube; a quartz glass rod; two fixed seats being disposed on the ends of the piezoelectric tube and a piezoelectric actuator. Each of the fixed seats has a base for receiving at least one spring and a plurality of ruby balls. The quartz glass rod is gripped to the fixed seat by the ruby balls of the fixed seat wherein the gripping force is controlled by means of the spring. The piezoelectric actuator applies an input voltage to the piezoelectric tube to cause one end of the piezoelectric tube to have a relative displacement in a direction along the axis of the quartz glass rod. The present invention provides a nanopositioning device capable of long stroke displacements at the nanometer scale by controlling the input voltage of the piezoelectric actuator and the gripping force of the ruby balls.Type: GrantFiled: March 16, 2005Date of Patent: December 11, 2007Assignee: Industrial Technology Research InstituteInventors: Shan-Peng Pan, Wei-Cheng Chang, Bin-Cheng Yao
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Publication number: 20070149056Abstract: A card connector comprises an insulating housing, a plurality of contacts, an ejector and a pressing member. The insulating housing has a rear wall and a pair of arms extending from lateral ends of the rear wall; the ejector is received on one of the arm and comprises a slider movable in a card insertion/ejecting direction, a spring and a guiding pin, the slider defines a heart groove on an outside surface thereof, and the guiding pin and the heart groove forms a locking member to lock the slider in a final position. The pressing member has a retaining portion and a pressing portion, the retaining portion is retained to a bottom surface of the insulating housing by a hot-melt way, the pressing member presses the guiding pin toward the heart groove to prevent the guiding pin from jumping out from the heart groove.Type: ApplicationFiled: December 26, 2006Publication date: June 28, 2007Inventors: Hsueh-Lung Hsiao, Wei-Cheng Chang