Patents by Inventor Wen Fu Chang
Wen Fu 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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Publication number: 20240136463Abstract: This disclosure discloses an optical sensing device. The device includes a carrier body; a first light-emitting device disposed on the carrier body; and a light-receiving device including a group III-V semiconductor material disposed on the carrier body, including a light-receiving surface having an area, wherein the light-receiving device is capable of receiving a first received wavelength having a largest external quantum efficiency so the ratio of the largest external quantum efficiency to the area is ?13.Type: ApplicationFiled: December 20, 2023Publication date: April 25, 2024Applicant: EPISTAR CORPORATIONInventors: Yi-Chieh LIN, Shiuan-Leh LIN, Yung-Fu CHANG, Shih-Chang LEE, Chia-Liang HSU, Yi HSIAO, Wen-Luh LIAO, Hong-Chi SHIH, Mei-Chun LIU
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Publication number: 20240128291Abstract: A sensor package structure includes a substrate, a sensor chip disposed on and electrically coupled to the substrate, a light-permeable layer, an adhesive layer having a ring-shape and sandwiched between the sensor chip and the light-permeable layer, and an encapsulant formed on the substrate. The adhesive layer has two adhering surfaces having a same area and a middle cross section located at a middle position between the two adhering surfaces. An area of the middle cross section is 115% to 200% of an area of any one of the two adhering surfaces. The adhesive layer can provide for light to travel therethrough, and enables the light therein to change direction and to attenuate. The sensor chip, the adhesive layer, and the light-permeable layer are embedded in the encapsulant, and an outer surface of the light-permeable layer is at least partially exposed from the encapsulant.Type: ApplicationFiled: June 6, 2023Publication date: April 18, 2024Inventors: CHIA-SHUAI CHANG, CHIEN-HUNG LIN, WEI-LI WANG, WEN-FU YU, BAE-YINN HWANG
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Publication number: 20240128233Abstract: A sensor package structure and a manufacturing method thereof are provided. The sensor package structure includes a substrate, a fixing adhesive layer disposed on the substrate, a sensor chip adhered to the fixing adhesive layer, an annular adhering layer disposed on the sensor chip, a light-permeable sheet adhered to the annular adhering layer, and a plurality of metal wires that are electrically coupled to the substrate and the sensor chip. The size of the light-permeable sheet is smaller than that of the sensor chip.Type: ApplicationFiled: June 6, 2023Publication date: April 18, 2024Inventors: CHIA-SHUAI CHANG, WEN-FU YU, BAE-YINN HWANG, WEI-LI WANG, CHIEN-HUNG LIN
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Patent number: 11928416Abstract: A method of process technology assessment is provided. The method includes: defining a scope of the process technology assessment, the scope comprising an original process technology and a first process technology; modeling a first object in an integrated circuit into a resistance domain and a capacitance domain; generating a first resistance scaling factor and a first capacitance scaling factor based on the modeling, the original process technology, and the first process technology; and utilizing, by an electronic design automation (EDA) tool, the first resistance scaling factor and the first capacitance scaling factor for simulation of the integrated circuit.Type: GrantFiled: March 1, 2023Date of Patent: March 12, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Hung-Chih Ou, Kuo-Fu Lee, Wen-Hao Chen, Keh-Jeng Chang, Hsiang-Ho Chang
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Publication number: 20160100534Abstract: A water supply container for plant cultivation is disclosed, which comprises a water-holding tray, wherein an end of the water-holding tray is configured with a positioning space, and a positioning pillar is formed in upward protrusion from the bottom of the positioning space; moreover, the positioning space includes a wall face formed around the periphery of the positioning pillar, in which the wall face corresponding to the middle section of the positioning pillar is configured with a screw thread. In addition, the positioning pillar can be further combined with a water supply bottle fixed to the positioning space of the water-holding tray, and on the outer wall face of the positioning pillar there includes at least a water supply channel so that the liquid flowing down from the water supply bottle enters into the water-holding tray along the water supply channel.Type: ApplicationFiled: October 9, 2014Publication date: April 14, 2016Inventor: Wen-Fu CHANG
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Publication number: 20150363354Abstract: A calculator that comprises an inputting member, a calculating member and a displaying member, wherein the calculating member is provided for calculating the value of the expression by means of a processing unit and generating a calculated result, and the displaying member has a displaying area, in which the displaying member displays the expression and the corresponding calculated result by the processing unit, so as to provide convenience for the users.Type: ApplicationFiled: July 30, 2014Publication date: December 17, 2015Inventor: Wen-Fu Chang
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Publication number: 20150029110Abstract: Disclosed is a symbol-oriented touch screen device including a displaying means, a touch control panel, a symbol shape storing means, and a hardware processing means. The touch control panel is coupled to the display means for detecting a sliding trace. The symbol shape storing means is electrically connected to the displaying means and the touch control pane, and stores a symbol shape data in accordance with a page. The hardware processing means, electrically connected to the touch control panel and the symbol shape data storing means, includes a trace recognizing unit and a responding unit. The trace recognizing unit is for recognizing the sliding trace and for generating a recognized result while the sliding trace is matched with the symbol shape data. The responding unit is for performing a dialing action, an answering action, an inquiring action, and a controlling action in accordance with the recognized result.Type: ApplicationFiled: March 7, 2014Publication date: January 29, 2015Inventor: Wen-Fu Chang
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Publication number: 20150012866Abstract: Disclosed is a method for data input of a touch panel device provided for inputting the input key. The method includes following steps of: determining an area region limiter on the touch panel; defining a plurality of subregion area elements for the area region limiter with respect to positions related to the area region limiter; obtaining a determined result by determining whether a finger sliding operation has been sliding through the subregion area elements; determining one subregion area elements from the plurality of the subregion area elements in accordance with the determined result; displaying input key elements belonging to the determined subregion area element; and selecting an input key from the displayed input key elements as an input data. Thereby a data of the input key can be rapidly input with less probability of input fault.Type: ApplicationFiled: August 23, 2013Publication date: January 8, 2015Inventor: Wen-Fu Chang
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Publication number: 20140210732Abstract: Disclosed is a control method of touch control device provided for instinctively controlling a touch control device in various manners. The control method includes steps as follows. While a touching movement is sensed on a touch panel of the touch control device, detecting a sliding trace of the touching movement; obtaining a determined result by distinguishing whether the sliding trace passes through a boundary component or not and by distinguishing whether the sliding trace passes through a edge portion of the boundary component or not; executing a presetting action according to the determined result.Type: ApplicationFiled: March 6, 2013Publication date: July 31, 2014Inventor: Wen-Fu Chang
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Publication number: 20090184474Abstract: An electronic target has a base, a sensing assembly and a collector. The base has a body and a stand. The base is an electrical target module and has an outer edge and a front surface. The stand is mounted on the outer edge of the body and hold the body vertical. The sensing assembly is formed on the front surface of the body and has a sticky cushion. The collector corresponds to, is mounted on and protrudes from the stand below the sensing assembly. When a pellet strikes the sticky cushion, the sticky cushion momentarily deforms slightly to hold the pellet momentarily and absorb energy of the pellet. After the pellet momentarily sticks to the sticky cushion, it falls into the collector.Type: ApplicationFiled: January 23, 2008Publication date: July 23, 2009Inventors: Wen-Fu Chang, Chin-Hsing Tsai
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Patent number: 7158358Abstract: A present invention provides a PDA with built-in voltage protection, comprising a main device, a socket, and a voltage protection module. The main device performs necessary data processing. The socket connects to an adapter. The voltage protection module is coupled between the main device and the socket, wherein the voltage protection module receives an input voltage from the adapter and allowing the input voltage to be applied to the main device when the input voltage is between a preset maximum voltage and a preset minimum voltage.Type: GrantFiled: December 9, 2003Date of Patent: January 2, 2007Assignee: Inventec Appliances CorporationInventors: Wen-Fu Chang, Chien-Ju Lee
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Publication number: 20060151957Abstract: A dartboard has a board member and a plurality of signs. The board member has a central target and a plurality of target sections on a front side thereof. The signs are detachably mounted on a periphery of the board member associated with the target sections respectively.Type: ApplicationFiled: January 11, 2005Publication date: July 13, 2006Inventors: Francis Pan, Juin Chang, Tsung-Chih Tsai, Wen-Fu Chang
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Patent number: 6758773Abstract: A flashing dart has a hollow barrel, a point assembly, a transparent shaft, a circuit board, a battery and a resilient element. The barrel has a front end and a rear end and is made of conductive material. The point assembly is attached to the front end of the barrel. The transparent flight shaft is attached to the rear end of the barrel. The circuit board has an integrated circuit controller and is firmly mounted inside the barrel. The battery has two electrodes connected respectively to the barrel and the circuit board. The resilient element abuts the battery and allows the battery to be temporarily disconnected from the circuit board when the flashing dart strikes a dartboard or is thrown thereby activating the integrated circuit controller that causes the lighting element to emit light for a preset period of time.Type: GrantFiled: October 21, 2003Date of Patent: July 6, 2004Assignee: Forhouse CorporationInventors: Yen-Hwa Liao, Wen-Fu Chang, Chun-Hung Liu
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Publication number: 20040114292Abstract: A present invention provides a PDA with built-in voltage protection, comprising a main device, a socket, and a voltage protection module. The main device performs necessary data processing. The socket connects to an adapter. The voltage protection module is coupled between the main device and the socket, wherein the voltage protection module receives an input voltage from the adapter and allowing the input voltage to be applied to the main device when the input voltage is between a preset maximum voltage and a preset minimum voltage.Type: ApplicationFiled: December 9, 2003Publication date: June 17, 2004Inventors: Wen-Fu Chang, Chien-Ju Lee
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Patent number: 6327821Abstract: A fire-proof refuge shelter includes a plurality of partition walls joined together by bolts and screws to form a closed box provided with a pair of sliding doors, characterized in that: each of the partition walls being made of a surface layer, an intermediate heat-resistant layer and an inner heat-resistant cement layer, the surface layer being made of fire-proof glass fiber or calcium silicate or mineral fiber, the inner heat resistant layer being a fire-proof sound absorbing board made of lightweight bone concrete or made by solidation of heat resistant concrete, and the intermediate heat resistant sand layer being made of non-combustible clay, silicon stone or substance primarily consisting of carbon, whereby oxygen tanks, flashlights and so on are arranged inside the shelter for people who waits for rescue.Type: GrantFiled: April 14, 2000Date of Patent: December 11, 2001Inventor: Wen Fu Chang