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Che-Wei

Che-Wei Chang, Hsinchu City TW

Patent application numberDescriptionPublished
20120096194UNIVERSAL SERIAL BUS DEVICE AND BULK TRANSFER CONTROL CIRCUIT AND CONTROL METHOD THEREOF - A bulk transfer control method of a universal serial bus (USB) device includes a timer for counting transmission time of a buck transfer. When the transmission time counted reaches a transmission time setting value, a trigger signal is issued to a transfer end event generator. Then, the transfer end event generator issues a transfer end event signal to a data processing unit so as to end the bulk transfer. Moreover, a USB device and its bulk transfer control circuit are also provided.04-19-2012

Che-Wei Chang, Hsinchu TW

Patent application numberDescriptionPublished
20090114722Card Reader With Capability Of Adjusting Access Interface Display - A card reader with capability of adjusting the access interface display is provided, including a connection interface for electrically connecting to the host, a plurality of access interfaces for electrically connecting to corresponding memory cards, such as SD, CF, and a controller. When the host completes the enumeration, the controller issues a disconnect signal through the connection interface to the host to erase the original disk mappings, such as G:, F:, on the display for subsequent adjustment. For adjusting the display, the controller issues an optional reconnect signal belonging to the card reader to the host so that the host can execute the re-enumeration and adjust the displaying of the access interface available in the card reader according to the optional reconnect signal.05-07-2009
20100122014Method For Protecting Memory Proprietary Commands - A method for protecting memory proprietary command is provided. By using the logic block area (LBA) address in the header of the LBA mode, the device end can determine whether the data sector in the LBA mode includes a proprietary command. Also, by using the pre-defined computation function to establish a relation among the values stored in a plurality of characteristic point addresses and a specific point address so that he device end can determine whether a proprietary command is received. As the operating system will not filter out the proprietary command wrapped in this manner, the proprietary command can pass the operating system and be executed by the device end.05-13-2010

Che-Wei Chang, Taipei City TW

Patent application numberDescriptionPublished
20110158108ETHERENT PHYSICAL LAYER TEST SYSTEM AND METHOD - An Ethernet physical layer test system and method, wherein a signal pattern generator is utilized to generate repeatedly a signal pattern frame required by the test items of the Ethernet physical layer according to a transmission procedure of a medium access controller; meanwhile, the signal pattern generator generates a control signal for switching a multiplexer, so as to control the transmission of a signal pattern frame. The Ethernet physical layer receives the signal pattern frame and outputs a test packet to a measurement instrument via a twisted-pair, for testing and analyzing quality of signals output by the Ethernet physical layer. Through the application of this Ethernet physical layer test system and method, the time required for testing the Ethernet physical layer can be effectively reduced, thus simplifying the complexity of an algorithm in testing the Ethernet physical layer.06-30-2011

Che-Wei Chang, Shulin City TW

Patent application numberDescriptionPublished
20120081891Structure of light tube - A structure of light tube includes a main body, a power supply module, and at least one light emission element. The main body has first and second heat dissipation zones and an accommodation chamber. The main body has two ends respectively and electrically connected to two conductive terminals. The power supply module is received and retained in the accommodation chamber of the main body. The power supply module includes an enclosure forming a receiving space in which a power supply device is received and retained. The light emission element is coupled to the main body so that heat from the light emission element is directly drained through the main body, while the power supply dissipates heat through natural air flows without relying on the main body, so that there parts do not cause thermal interference with each other and the performance of heat dissipation is improved to thereby extend the lifespan of the light tube. Further, the light emission element and the power supply are of modularized arrangements, which allow the users to conduct maintenance and repairing operation with simple tools by themselves.04-05-2012

Che-Wei Huang, Hsinchu City TW

Patent application numberDescriptionPublished
20090273351Electronic element testing and supporting apparatus - An electronic element testing and supporting apparatus includes a circuit board, an outer frame, an inner frame, a plate and two locking devices. The outer frame is assembled on a second surface of the circuit board and has a plurality of outer frame. Two opposing outer frame rims are provided respectively with a slot having an accommodating opening and an accommodating hole. The inner frame is lodged in the outer frame. The plate is inserted into the slots via the accommodating openings of the two opposing outer frame rims. The locking device includes an elastic element disposed in the accommodating hole of the outer frame rim and a stopper. The elastic element abuts against the stopper, so that the stopper can be movably extended into the corresponding slot to stop the plate. Via this arrangement, the present invention avoids using screws to lock the plate and the inner frame.11-05-2009

Che-Wei Kuo, Anding Township TW

Patent application numberDescriptionPublished
20110119280CANDIDATE KEY RETRIEVING APPARATUS, CANDIDATE KEY RETRIEVING METHOD AND TANGIBLE MACHINE-READABLE MEDIUM THEREOF - A candidate key retrieving apparatus, a candidate key retrieving method and a tangible machine-readable medium thereof are provided. The candidate key retrieving apparatus comprises a storage unit and a microprocessor. The storage unit is configured to store a table recording a data amount of the table, a plurality of attributes, and a data distinct amount and a data type of each attribute. The microprocessor is configured to generate a candidate key according to the data amount, the distinct amounts and the data types.05-19-2011

Che-Wei Liang, Taichung County TW

Patent application numberDescriptionPublished
20110093192APPLICATION APPARATUS, SERVER, SYSTEM AND METHOD OF TRAVEL SERVICE - A system of travel service is provided. The system includes an application apparatus and a server. A traveler sends a request through the application apparatus when a problem occurs during his/her trip. A helper who has communication capability of a specific language used by the traveler is found by the server in real time. The server sends information related to the request to the helper immediately. A live connection between the traveler and the helper is created in real time to provide travel services to satisfy the request, in which the live connection includes real-time voice communication and real-time data communication. The problem which occurred during the traveler's trip can be solved quickly by the present system.04-21-2011

Che-Wei Liang, Dajia Township TW

Patent application numberDescriptionPublished
20100073476SYSTEMS AND METHODS FOR MEASURING THREE-DIMENSIONAL PROFILE - A method for detecting at least one object within a storage space. The method includes identifying at least one surface among surfaces confining the storage space, and dividing each of the at least one surface into a plurality of sub-areas. The method further includes detecting an occupancy status of each sub-area, wherein the occupancy status is indicative of the presence of the at least one object over each of the at least one surface, and deriving at least one of volume, location, and shape information of the at least one object, based on the occupancy statuses of the sub-areas.03-25-2010

Che-Wei Lin, Taipei City TW

Patent application numberDescriptionPublished
20120096286CHARGING MANAGEMENT METHOD, CHARGING CONTROL CIRCUIT AND THE HOST APPARATUS HAVING THE SAME - A control circuit of universal serial bus (USB) port includes a charge control unit providing a first operating voltage and a second operating voltage to a first operating voltage end and a second operating voltage end of the USB port, and a first circuit unit coupled to the charge control unit. Furthermore, the first circuit includes a first output end and a second output end. When a external apparatus is inserted into the USB port, the charge control unit connects the first output end and the second output end to a differential positive end and a differential negative end of the USB port, respectively, to enter a rapid charging mode.04-19-2012

Che-Wei Lin, Hsinchu Hsiang TW

Patent application numberDescriptionPublished
20110128028PROBE CARD, MAINTENANCE APPARATUS AND METHOD FOR THE SAME - A maintenance apparatus and a maintenance method for a probe card are provided. The maintenance apparatus includes a first supporting member, a second supporting member, a first clamping member, a second clamping member, and a plurality of locking units. In the maintenance method, the first supporting member and the second supporting member are initially positioned underneath below the two sides of a positioning slice, respectively, and then the first clamping member and the second clamping member are each disposed on the first supporting member and the second supporting member, respectively. First clamping member and first supporting member, and second clamping member and second supporting member are secured together respectively by locking units. Thus two sides of positioning slice are secured tightly and the positioning slice is well fastened. A probe card is also provided. The probe card includes a guide slot having a size corresponding to that of maintenance apparatus.06-02-2011
20120007627PROBE HEAD OF PROBE CARD AND MANUFACTURING METHOD OF COMPOSITE BOARD OF PROBE HEAD - A probe head of vertical probe card and a manufacturing method of a composite board thereof are provided. The probe head includes guide plate, composite board, and probe pin. The composite board includes first board layer and second board layer which are laminated together by joining operation. The composite board further includes through hole which is made by drilling and passed all the way through the first board layer and the second board layer. The friction coefficient of the first board layer is less than that of the second board layer, and the thermal expansion coefficient of the second board layer is less than that of the first board layer. The probe pin is penetrated all the way through the through hole of the composite board. By this, friction between the probe pin and composite board is reduced so as to stabilize the position of the probe pin.01-12-2012