Patents by Inventor Chun-Wen Wang
Chun-Wen Wang 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: 9665338Abstract: A display method is applicable for a display apparatus. The display method includes transmitting preview data outputted by a client terminal to a host terminal such that the host terminal displays a preview image corresponding to the preview data. After the host terminal displays the preview image, if the host terminal outputs a first display permission signal, the display apparatus is utilized to display an image corresponding to an image signal outputted by the client terminal. A display apparatus, a video system and a projector are disclosed herein as well.Type: GrantFiled: February 5, 2015Date of Patent: May 30, 2017Assignee: DELTA ELECTRONICS, INC.Inventors: Bo-Tao Lin, JianHua Lu, Chun-Hua Zhang, Tsung-Cheng Lo, Mao-Hua Cheng, Chun-Wen Wang
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Patent number: 9654037Abstract: A multi-phase motor control method controls a multi-phase motor which includes multiple nodes respectively receiving a corresponding number of driving voltage signals to control a rotation of a rotor. The motor control method includes: sensing a signal phase of a current signal corresponding to at least one node, for example by sensing a zero-crossing point of the current signal; determining a reference phase for the current signal; calculating a phase difference between the signal phase and the reference phase; and controlling a phase switching frequency of the stator according to the phase difference, such that the signal phase is close to or in phase with the reference phase, to thereby obtain an optimum rotation speed of the rotor corresponding to a given driving voltage. The present invention also provides a multi-phase motor control device using the motor control method.Type: GrantFiled: August 18, 2014Date of Patent: May 16, 2017Assignee: RICHTEK TECHNOLOGY CORPORATIONInventors: Kuo-Chung Lee, Wei-Hsu Chang, An-Tung Chen, Chun-Wen Wang
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Publication number: 20160147497Abstract: A display method is applicable for a display apparatus. The display method includes transmitting preview data outputted by a client terminal to a host terminal such that the host terminal displays a preview image corresponding to the preview data. After the host terminal displays the preview image, if the host terminal outputs a first display permission signal, the display apparatus is utilized to display an image corresponding to an image signal outputted by the client terminal. A display apparatus, a video system and a projector are disclosed herein as well.Type: ApplicationFiled: February 5, 2015Publication date: May 26, 2016Inventors: Bo-Tao LIN, JianHua LU, Chun-Hua ZHANG, Tsung-Cheng LO, Mao-Hua CHENG, Chun-Wen WANG
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Publication number: 20150069940Abstract: A multi-phase motor control method controls a multi-phase motor which includes multiple nodes respectively receiving a corresponding number of driving voltage signals to control a rotation of a rotor. The motor control method includes: sensing a signal phase of a current signal corresponding to at least one node, for example by sensing a zero-crossing point of the current signal; determining a reference phase for the current signal; calculating a phase difference between the signal phase and the reference phase; and controlling a phase switching frequency of the stator according to the phase difference, such that the signal phase is close to or in phase with the reference phase, to thereby obtain an optimum rotation speed of the rotor corresponding to a given driving voltage. The present invention also provides a multi-phase motor control device using the motor control method.Type: ApplicationFiled: August 18, 2014Publication date: March 12, 2015Applicant: RICHTEK TECHNOLOGY CORPORATIONInventors: Kuo-Chung Lee, Wei-Hsu Chang, An-Tung Chen, Chun-Wen Wang
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Patent number: 8579477Abstract: An electronic device is provided. The electronic device includes a body, a light source, a light shutter, and a light transmissive net structure. The body has a cavity therein. The light source is disposed in the cavity. The light shutter is disposed over the light source, wherein the light shutter includes a light transmissive pattern therein. The light transmissive net structure is disposed over the cavity and covers the light shutter. In use, light emitted from the light source would pass through the light transmissive pattern to the light transmissive net structure, thereby displaying an image corresponding to the light transmissive pattern onto the light transmissive net structure.Type: GrantFiled: June 24, 2011Date of Patent: November 12, 2013Assignee: Inventec CorporationInventors: Chun-Chi Lin, Liang-Chieh Tseng, Chun-Wen Wang
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Patent number: 8577394Abstract: A security management system is provided. The security management system includes a storage unit and at least one processor. The storage unit stores a restricting table which records relationships between positional information of a mobile device and functions of the mobile device. The at least one processor includes an information module, a restricting module and a disabling module. The information module provides positional information of the mobile device. The restricting module generates a restricting instruction according to the provided positional information of the mobile device and the restricting table. The disabling module disables the corresponding functions of the mobile device according to the generated restricting instruction.Type: GrantFiled: December 29, 2011Date of Patent: November 5, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Ho-Leung Cheung, Jia-Lin Chen, Chun-Wen Wang, Chia-Hung Chien
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Patent number: 8468076Abstract: A charge control system which is applied in a hardware environment includes an electronic device, an intelligent ammeter, and a server. The intelligent ammeter is connected to the server by a network connection. The charge control system includes a storage unit, and at least one processor. The storage unit stores a plurality of validation information. The at least one processor includes a receiving module, a validating module and a charge control module. The receiving module receives information from a user intended to validate the user. The validating module determines whether the received information matches one of the items of predetermined validation information. The charge control module controls the intelligent ammeter to begin charging the electronic device when the received information matches one of items of the predetermined validation information.Type: GrantFiled: December 29, 2011Date of Patent: June 18, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Ho-Leung Cheung, Jia-Lin Chen, Chun-Wen Wang, Chia-Hung Chien
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Patent number: 8453210Abstract: A file sharing system includes a web server, a first electronic device, and a second electronic device. The web server includes an authorizing module and a server storage module. The server storage module is capable of storing files uploaded from a first electronic device. The authorizing module is capable of recording an authorizing setting from the first electronic device to authorize a second electronic device to access the files in the server storage module.Type: GrantFiled: October 14, 2009Date of Patent: May 28, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Chia-Hung Chien, Chun-Wen Wang, Chia-Peng Wang, Ling-Wei Liu
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Publication number: 20130132272Abstract: A charge control system which is applied in a hardware environment includes an electronic device, an intelligent ammeter, and a server. The intelligent ammeter is connected to the server by a network connection. The charge control system includes a storage unit, and at least one processor. The storage unit stores a plurality of validation information. The at least one processor includes a receiving module, a validating module and a charge control module. The receiving module receives information from a user intended to validate the user. The validating module determines whether the received information matches one of the items of predetermined validation information. The charge control module controls the intelligent ammeter to begin charging the electronic device when the received information matches one of items of the predetermined validation information.Type: ApplicationFiled: December 29, 2011Publication date: May 23, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HO-LEUNG CHEUNG, JIA-LIN CHEN, CHUN-WEN WANG, CHIA-HUNG CHIEN
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Publication number: 20130130650Abstract: A security management system is provided. The security management system includes a storage unit and at least one processor. The storage unit stores a restricting table which records relationships between positional information of a mobile device and functions of the mobile device. The at least one processor includes an information module, a restricting module and a disabling module. The information module provides positional information of the mobile device. The restricting module generates a restricting instruction according to the provided positional information of the mobile device and the restricting table. The disabling module disables the corresponding functions of the mobile device according to the generated restricting instruction.Type: ApplicationFiled: December 29, 2011Publication date: May 23, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HO-LEUNG CHEUNG, JIA-LIN CHEN, CHUN-WEN WANG, CHIA-HUNG CHIEN
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Publication number: 20130132270Abstract: A charging station information control system is provided. The charging station information control system includes at least one processor. A plurality of modules to be executed by the at least one processor includes an information acquiring module and a matching module. The information acquiring module acquires positional information of an electric vehicle. A matching module determines one or more suitable charging stations whose positional information matches the acquired positional information of the electric vehicle, and acquires the positional information of the one or more suitable charging stations.Type: ApplicationFiled: December 29, 2011Publication date: May 23, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HO-LEUNG CHEUNG, JIA-LIN CHEN, CHUN-WEN WANG, CHIA-HUNG CHIEN
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Patent number: 8385991Abstract: A dual-axis hinge structure and electric device having the same are provided, and the dual-axis hinge structure includes a hinge base having a pushed portion, a first pivot portion having a first cam and a first shaft, a second pivot portion having a second cam and a second shaft, and a restoring member connected both the first pivot portion and the second pivot portion. The first shaft is pivoted on the hinge base, and the first cam is fixed on the first shaft, and the first cam is contacted with one lateral side of the pushed portion. The second shaft is parallel to the first shaft, and is pivoted on the hinge base, and the second cam is fixed on the second shaft, and the second cam is contacted with another lateral side of the pushed portion.Type: GrantFiled: November 23, 2011Date of Patent: February 26, 2013Assignee: Quanta Computer Inc.Inventors: Chun-Wen Wang, Shan-Feng Chang
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Publication number: 20130016492Abstract: A dual-axis hinge structure and electric device having the same are provided, and the dual-axis hinge structure includes a hinge base having a pushed portion, a first pivot portion having a first cam and a first shaft, a second pivot portion having a second cam and a second shaft, and a restoring member connected both the first pivot portion and the second pivot portion. The first shaft is pivoted on the hinge base, and the first cam is fixed on the first shaft, and the first cam is contacted with one lateral side of the pushed portion. The second shaft is parallel to the first shaft, and is pivoted on the hinge base, and the second cam is fixed on the second shaft, and the second cam is contacted with another lateral side of the pushed portion.Type: ApplicationFiled: November 23, 2011Publication date: January 17, 2013Applicant: Quanta Computer Inc.Inventors: Chun-Wen WANG, Shan-Feng CHANG
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Patent number: 8275983Abstract: A method for storing files in a storage device includes the following steps. The storage device is divided into an original partition and a system partition. A plurality of original files is installed in the original partition. A shortcut is established in the system partition pointing to a first original file of the original files. The first original file can be executed by activating the shortcut.Type: GrantFiled: November 2, 2009Date of Patent: September 25, 2012Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Liang-Mao Hung, Chih-Yuan Chuang, Chia-Hung Chien, Peng-Zheng Yang, Chun-Wen Wang
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Publication number: 20120170279Abstract: An electronic device is provided. The electronic device includes a body, a light source, a light shutter, and a light transmissive net structure. The body has a cavity therein. The light source is disposed in the cavity. The light shutter is disposed over the light source, wherein the light shutter includes a light transmissive pattern therein. The light transmissive net structure is disposed over the cavity and covers the light shutter. In use, light emitted from the light source would pass through the light transmissive pattern to the light transmissive net structure, thereby displaying an image corresponding to the light transmissive pattern onto the light transmissive net structure.Type: ApplicationFiled: June 24, 2011Publication date: July 5, 2012Applicant: INVENTEC CORPORATIONInventors: Chun-Chi LIN, Liang-Chieh TSENG, Chun-Wen WANG
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Publication number: 20120054836Abstract: A server includes an event schedule module, an authorization manager, and a control module. The event schedule module establishes a meeting schedule. The authorization manager provides an authorization key and a plurality of participant identifications. The control module establishes a virtual private network according to the meeting schedule. The virtual private network groups at least one resource device, and a plurality of clients with the authorization key.Type: ApplicationFiled: June 21, 2011Publication date: March 1, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHIA-HUNG CHIEN, CHUN-WEN WANG
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Publication number: 20120040656Abstract: An electronic device includes a display, a location-positioning module, a timer, a storage unit. The location-positioning module detects a current location. The timer determines current time. The storage unit includes a mode switch module. The mode switch module controls a current working mode based on the current location or the current time.Type: ApplicationFiled: May 13, 2011Publication date: February 16, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHUN-WEN WANG, CHIEN-HUANG CHANG, CHI-FAN HO
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Publication number: 20120041765Abstract: An electronic book reader includes a text obtaining module, a text analysis module, a speech synthesis module, a control module, and an audio output device. The text obtaining module is used for obtaining a selected segment of a text. The text analysis module is used for analyzing a time phrase of the selected segment to obtain a waiting time period according to meaning of the time phrase in the selected segment. The speech synthesis module is used for converting the selected segment into speech. The control module is used for sending the content of the selected segment to the speech synthesis module. Wherein the control module waits for the waiting time period after sending the time phrase to the speech synthesis. The audio output module is used for playing the speech.Type: ApplicationFiled: May 10, 2011Publication date: February 16, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHIA-HUNG CHIEN, TUN-TAO TSAI, CHUN-WEN WANG, LIANG-MAO HUNG
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Publication number: 20120036276Abstract: A streaming service gateway includes a streaming service adapter, a transcoding module, and a streaming interface. The streaming service adapter communicates with at least one streaming server through at least one of a plurality of streaming protocols. The transcoding module transforms the streaming content from the streaming service adapter into a predetermined format. The streaming interface receives the streaming content with the predetermined format and provides the streaming content with the predetermined format to a streaming client device through a uniform streaming protocol.Type: ApplicationFiled: June 1, 2011Publication date: February 9, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHIA-HUNG CHIEN, CHUN-WEN WANG
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Publication number: 20120036451Abstract: An electronic device includes a screen, a processor, and a storage unit. The storage unit stores one or more computerized instructions. The storage unit includes a meeting user interface (UI) module. The meeting UI module includes a meeting information display sub-module and an application control sub-module. The meeting information display sub-module is may display meeting subject item, an attendee contact list, and a file list on a desktop of the display screen. The application control sub-module may display shortcuts on the desktop of the display screen. The shortcuts are associated with a voice recording application, a note application, and a task editing application.Type: ApplicationFiled: May 9, 2011Publication date: February 9, 2012Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: CHUN-WEN WANG, CHIEN-HUANG CHANG, CHI-FAN HO