Patents by Inventor Yong-Hua Cheng
Yong-Hua Cheng 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: 20140253444Abstract: A mobile communication device including a wireless communication module, a local display device, and a processing module is provided. The wireless communication module performs wireless transceiving to and from a display host machine. The local display device is equipped with a first display screen including a first control area and a second control area within the first control area. The processing module detects a first touch event in the first control area and a second touch event for moving the second control area within the first control area, transforms coordinate information of the first and second touch events into a first set and a second set of coordinates on a second display screen of the display host machine, respectively, and presents a touch operation and a cursor operation on the second display screen via the wireless communication module according the first set and second set of coordinates, respectively.Type: ApplicationFiled: September 19, 2013Publication date: September 11, 2014Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yong-Hua Cheng, Han-Chiang Chen, Yi-Hung Lu, Hsiao-Hui Lee, Chin-Chen Lee
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Patent number: 8126465Abstract: An adaptive handover method in a heterogeneous network environment collects estimation information for a channel environment and integrates with a wireless device's geographic information to decide two groups of recursive parameters and a channel theoretical signal model. The model and the first group of recursive parameters are used to execute recursive iteration for a signal strength decay theoretical value. The obtained actual signal strength decay value from channel estimation, the second group of recursive parameters and the signal strength decay estimation value at previous iteration are used to execute channel-tracking recursive iteration for obtaining a signal strength decay tracking value. The current network status and the signal strength decay tracking value are used to predict and analyze system performance of heterogeneous networks. A decision is made based on each heterogeneous network's analyzed result, and an adaptive handover procedure is prepared by following the decision.Type: GrantFiled: February 14, 2009Date of Patent: February 28, 2012Assignee: Industrial Technology Research InstituteInventors: Yi-Hung Lu, Yong-Hua Cheng
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Patent number: 7853709Abstract: A multimedia data sharing system and method for a MOST network is disclosed. The system provides a service management module, a data link control module, and a protocol conversion module. The service management module provides state analysis and management for all services of the multimedia data sharing system and records analyzed service states and configuration results in a service management list. The data link control module performs a control and management process for system data streams based on information stored in the service management list. The protocol conversion module retrieves data from a channel register, based on the information stored in the service management list, to perform a MOST link management operation and implements a packaged or an unpackaged operation to data packets for access of the MOST network.Type: GrantFiled: August 15, 2008Date of Patent: December 14, 2010Assignee: Industrial Technology Research InstituteInventors: Yong-Hua Cheng, Yi-Hung Lu, Yu-Ching Lin, Chia-Ling Liu
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Patent number: 7764753Abstract: An apparatus and method estimates the adaptive wireless channel for a moving vehicle. Once a packet is received, this invention analyzes a channel interference index for the moving vehicle, and computes a first recursive parameter, a second recursive parameter and an interpolation number. Based on the first recursive parameter and the interpolation number, partial channel information is calculated for further channel estimation by using an interpolation. The parameter of an equalizer is also immediately updated. Cooperating with a decision feedback scheme and based on the second recursive parameter, channel tracking is performed. In order to achieve the adaptive channel estimation for wireless access on the time-variant vehicle environment, the parameter for the algorithm for performing the channel estimation is adjusted.Type: GrantFiled: March 9, 2007Date of Patent: July 27, 2010Assignee: Industrial Technology Research InstituteInventors: Yong-Hua Cheng, Yi-Hung Lu, Chia-Ling Liu
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Publication number: 20100087195Abstract: Disclosed relates to an adaptive handover method in a heterogeneous network environment. Once a wireless device starts up, the invention collects estimation information for a channel environment and integrates with the wireless device's geographic information to decide two groups of recursive parameters and a channel theoretical signal model. The model and the first group of recursive parameters are used to execute recursive iteration for a signal strength decay theoretical value. The obtained actual signal strength decay value from channel estimation, second group of recursive parameters and the signal strength decay estimation value at previous iteration are used to execute channel-tracking recursive iteration for obtaining a signal strength decay tracking value. The current network status and the signal strength decay tracking value are used to predict and analyze system performance of heterogeneous networks. Based on the analyzed result, prediction time is also regulated.Type: ApplicationFiled: February 14, 2009Publication date: April 8, 2010Inventors: Yi-Hung Lu, Yong-Hua Cheng
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Publication number: 20090172181Abstract: A multimedia data sharing system and method for a MOST network is disclosed. The system provides a service management module, a data link control module, and a protocol conversion module. The service management module provides state analysis and management for all services of the multimedia data sharing system and records analyzed service states and configuration results in a service management list. The data link control module performs a control and management process for system data streams based on information stored in the service management list. The protocol conversion module retrieves data from a channel register, based on the information stored in the service management list, to perform a MOST link management operation and implements a packaged or an unpackaged operation to data packets for access of the MOST network.Type: ApplicationFiled: August 15, 2008Publication date: July 2, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yong-Hua Cheng, Yi-Hung Lu, Yu-Ching Lin, Chia-Ling Liu
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Patent number: 7420826Abstract: Parallel inverters without any communication buses and the controlling method thereof are provided. The parallel inverters are controlled by an instant voltage. Each inverter includes an output voltage waveform controller and a load-sharing controller. The output voltage waveform controller is connected to an output terminal of the inverter to control the waveform of an output voltage of the inverter. The load-sharing controller is connected to the output voltage waveform controller to control the load-sharing of the inverter and to make each inverter have the same phase, active power and reactive power without communications.Type: GrantFiled: May 23, 2006Date of Patent: September 2, 2008Assignee: Delta Electronics, Inc.Inventors: Jing-Tao Tan, Yang Li, Yong-Hua Cheng, Jian-Ping Ying, Charles Tsai
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Publication number: 20080159458Abstract: Disclosed is an apparatus and method for adaptive wireless channel estimation. Once a packet is received, this invention analyzes channel interference index for a moving vehicle, and computes a first recursive parameter, a second recursive parameter and an interpolation number. Based on the first recursive parameter and the interpolation number, partial channel information is calculated for further channel estimation by using an interpolation. The parameter of an equalizer is also immediately updated. Cooperating with a decision feedback scheme and based on the second recursive parameter, channel tracking is performed. In order to achieve the adaptive channel estimation for wireless access on the time-variant vehicle environment, the parameter for the algorithm for performing the channel estimation is adjusted.Type: ApplicationFiled: March 9, 2007Publication date: July 3, 2008Inventors: Yong-Hua Cheng, Yi-Hung Lu, Chia-Ling Liu
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Publication number: 20080043501Abstract: Parallel inverters without any communication buses and the controlling method thereof are provided. The parallel inverters are controlled by an instant voltage. Each inverter includes an output voltage waveform controller and a load-sharing controller. The output voltage waveform controller is connected to an output terminal of the inverter to control the waveform of an output voltage of the inverter. The load-sharing controller is connected to the output voltage waveform controller to control the load-sharing of the inverter and to make each inverter have the same phase, active power and reactive power without communications.Type: ApplicationFiled: May 23, 2006Publication date: February 21, 2008Applicant: Delta Electronics, Inc.Inventors: Jing-Tao Tan, Yang Li, Yong-Hua Cheng, Jian-Ping Ying, Charles Tsai
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Patent number: 7315239Abstract: A short-range inter-vehicle communication and warning apparatus comprises a forward radar and a backward radar. The apparatus uses the radars to generate Frequency Modulation/Continuous Wave (FMCW) signals, uses amplitude shift keying for data modulation and arranges a special packet format, to realize such a low cost and fast response device of collision avoidance for vehicles. The invention has the dual capabilities of detecting and communicating simultaneously. It can also measure the relative speed of a preceding/rear vehicles and the relative inter-vehicle distance. The invention also exchanges the real-time traffic information with the preceding/rear vehicles at the same time. It is applicable to a one-to-one or one-to-many inter-vehicle channel model.Type: GrantFiled: December 7, 2005Date of Patent: January 1, 2008Assignee: Industrial Technology Research InstituteInventors: Yong-Hua Cheng, Yun-Yen Chen, Chung-Shun Yang, Sheng-Yung Chen
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Publication number: 20070096885Abstract: A short-range inter-vehicle communication and warning apparatus comprises a forward radar and a backward radar. The apparatus uses the radars to generate Frequency Modulation/Continuous Wave (FMCW) signals, uses amplitude shift keying for data modulation and arranges a special packet format, to realize such a low cost and fast response device of collision avoidance for vehicles. The invention has the dual capabilities of detecting and communicating simultaneously. It can also measure the relative speed of a preceding/rear vehicles and the relative inter-vehicle distance. The invention also exchanges the real-time traffic information with the preceding/rear vehicles at the same time. It is applicable to a one-to-one or one-to-many inter-vehicle channel model.Type: ApplicationFiled: December 7, 2005Publication date: May 3, 2007Inventors: Yong-Hua Cheng, Yun-Yen Chen, Chung-Shun Yang, Sheng-Yung Chen