Patents by Inventor Shih-Ming Wang
Shih-Ming 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: 7612516Abstract: This invention discloses a method and system for measuring a CNC machine. The system comprises a platform, a driving module, a set of optical scales, and a detection module. The platform is driven by the driving module. In addition, the driving module further comprises a set of encoders. As the driving module drives the platform to move to a position by a first displacement, the encoders indicate the first displacement. The optical scales indicate a second displacement by which the platform is driven by the driving module. The detection module detects the difference between the first displacement and the second displacement.Type: GrantFiled: August 10, 2007Date of Patent: November 3, 2009Assignee: Chung Yuan Christian UniversityInventors: Shih-Ming Wang, Jr-Hau Chen, Jung-Ji Wang
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Patent number: 7550681Abstract: This invention discloses a method and apparatus for measuring the weight of a CNC workpiece. As the weight of the workpiece on a loading platform increases, the loading of a driving module which drives the loading platform in constant speed increases accordingly. On the contrary, as the weight of the workpiece on the loading platform decreases, the loading of the driving module which drives the loading platform in constant speed also decreases. This invention determines the weight of the workpiece on the loading platform by measuring the electrical signal which drives the driving module and utilizing a calibration curve data in a preconfigured database.Type: GrantFiled: May 25, 2007Date of Patent: June 23, 2009Assignee: Chung Yuan Christian UniversityInventors: Shih-Ming Wang, Ming-Hua Li
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Patent number: 7540697Abstract: A computer assisted detecting and restraining system for cutting tool chatter. The system comprises a network monitor system, a signal extraction system, a chatter detection system, and a chatter restraint system. The network monitor system monitors a machine tool and receives audio caused during a cutting process. The signal extraction system extracts vibration displacement signals generated during the cutting process converts the vibration displacement signals to digital signals and transfers the digitalized signals. The chatter detection system receives the digitalized vibration displacement signals and sends a control command when the signals are high frequency signals. The chatter restraint system receives the control command and adjusts rotation rates of a spindle of the machine tool accordingly.Type: GrantFiled: October 25, 2005Date of Patent: June 2, 2009Assignee: Chung Yuan Christian UniversityInventors: Shih-Ming Wang, Hsiang-Yung Hsieh
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Publication number: 20090045877Abstract: A multi-frequency and multi-mode power amplifier is provided. The amplifier has a carrier power amplifier and a peaking power amplifier. The carrier power amplifier receives a first signal and outputs a first amplified signal, in which a first transistor size adjusting unit is included to adjust an equivalent transistor size based on a mode indication signal. The peaking power amplifier receives a second signal and outputs a second amplified signal, in which a second transistor size adjusting unit is included to adjust an equivalent transistor size based on the mode indication signal.Type: ApplicationFiled: January 30, 2008Publication date: February 19, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shih-Ming Wang, Cheng-Chung Chen, Yu-Cheng Hsu, Chung-Chi Lai
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Publication number: 20080289882Abstract: This invention discloses a method and apparatus for measuring the weight of a CNC workpiece. As the weight of the workpiece on a loading platform increases, the loading of a driving module which drives the loading platform in constant speed increases accordingly. On the contrary, as the weight of the workpiece on the loading platform decreases, the loading of the driving module which drives the loading platform in constant speed also decreases. This invention determines the weight of the workpiece on the loading platform by measuring the electrical signal which drives the driving module and utilizing a calibration curve data in a preconfigured database.Type: ApplicationFiled: May 25, 2007Publication date: November 27, 2008Applicant: CHUNG YUAN CHRISTIAN UNIVERSITYInventors: Shih-Ming Wang, Ming-Hua Li
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Publication number: 20080242274Abstract: The invention discloses systems and methods for integrating Mobile Commerce applications with dynamically generated user profiles. A profiling engine collects and stores information regarding a mobile subscriber's usage of Mobile Banking, Mobile Payment, and Mobile Brokerage, and stores the information in a profile. A Dynamic Event Server Subsystem comprising a Mobile Broker analyzes patterns in the subscriber's usage of these applications. The mobile broker can thus provide intelligent feedback regarding purchases and financial transactions back to the applications and to the subscriber. This feedback is provided in real time.Type: ApplicationFiled: March 27, 2007Publication date: October 2, 2008Inventors: Scott Allen Swanburg, James Patrick Ryan, Sashonda Warren, Shih-Ming Wang
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Publication number: 20080234852Abstract: This invention discloses a method and system for measuring a CNC machine. The system comprises a platform, a driving module, a set of optical scales, and a detection module. The platform is driven by the driving module. In addition, the driving module further comprises a set of encoders. As the driving module drives the platform to move to a position by a first displacement, the encoders indicate the first displacement. The optical scales indicate a second displacement by which the platform is driven by the driving module. The detection module detects the difference between the first displacement and the second displacement.Type: ApplicationFiled: August 10, 2007Publication date: September 25, 2008Applicant: CHUNG YUAN CHRISTIAN UNIVERSITYInventors: Shih-Ming Wang, Jr-Hau Chen, Jung-Ji Wang
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Patent number: 7381017Abstract: A detecting and suppressing control method for milling tool chatter. Milling parameters are defined. A milling device is initiated using the milling parameters. Milling signals are extracted using a sensor installed on the milling device. It is determined whether chatter relating to the milling device occurs, comprising determining whether the milling signals are high frequency signals, and, if the milling signals are high frequency signals, determining whether signal points generated based on the milling signals are located in a stable area derived using a sliding function. When the signal points are located in the stable area, the milling signals are stable milling signals. When the signal points are located outside the stable area, rotational rates of a spindle of the milling device are adjusted.Type: GrantFiled: July 22, 2005Date of Patent: June 3, 2008Assignee: Chung Yuan Christian UniversityInventors: Shih-Ming Wang, Hsiang-Yung Hsieh
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Publication number: 20080088805Abstract: A light integration rod is suitable for an optical projection apparatus to uniform the light beam provided by a light source of the optical projection apparatus. The light integration rod has an optical axis and includes a first integration portion. The first integration portion has a light incident cross-section perpendicular to the optical axis and located adjacent to the light source. The space enclosed by the first integration portion is composed of a prism-like space and at least an oblique-pyramid-like space protruded from the first integration portion and the cross-sections of the oblique-pyramid-like space perpendicular to the optical axis are gradually shrunk in the direction from the light incident cross-section to away from the light incident cross-section. In this way, the light integration rod has higher light-collecting efficiency and optical efficiency.Type: ApplicationFiled: July 25, 2007Publication date: April 17, 2008Applicant: YOUNG OPTICS INC.Inventors: Cheng Wang, Shih-Ming Wang
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Publication number: 20070295138Abstract: A toggle-type positioning platform including a first platform, a motor, a screw rod, a second platform and a linkage is provided. The motor and the screw rod are disposed on the first platform; the motor is coupled to the screw rod and suitable for driving the screw rod to rotate. The second platform is above the first platform and is suitable for moving back and forth alternately along a predetermined path, wherein an included angle exists between an extended direction of the predetermined path and the screw rod. The linkage is disposed between the first platform and the second platform, and is connected between the second platform and the screw rod. The linkage is driven by the rotation of the screw rod, to drive the second platform to move along he predetermined path. Accordingly, the positioning precision of the toggle-type positioning platform is enhanced.Type: ApplicationFiled: August 31, 2006Publication date: December 27, 2007Inventors: Shih-Ming Wang, Chih-Peng Yang
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Publication number: 20070264431Abstract: The present invention provides an apparatus for forming a film. The apparatus comprises a fluid auto-injecting mechanism, a tension control mechanism, and a scraper with a height. The fluid auto-injecting mechanism injects a viscous fluid material on a substrate and controls the injection quantity of the fluid material wherein the fluid material is capable of filtering out volatile organic compounds and the substrate has a shape and experiences a tension. The tension control mechanism controls the tension of the substrate to prevent from shape deformation. The scraper uniformly scraps the fluid material wherein the height of the scraper is adjustable.Type: ApplicationFiled: July 14, 2006Publication date: November 15, 2007Applicant: CHUNG YUAN CHRISTIAN UNIVERSITYInventors: Shih-Ming Wang, Sheng-Yuan Huang, Chia-You Chung
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Publication number: 20070158956Abstract: A pressurized handle set includes a latch member, a sliding slot and a door set. The door set includes a door, a door frame, a pliable pad and a bolt. The bolt couples the door and door frame and provides a turning means. The pliable pad is interposed between the door and door frame. The latch member and the sliding slot are located on respectively on the door and door frame. The latch member includes an axle, a bracing arm and a stub shaft. The bracing arm may turn about the axle along a swivel path. The stub shaft is located on one end of the bracing arm. When the bracing arm is swiveled along the swivel path and slid in a distal end of the sliding slot, the pliable pad is compressed to generate an elastic force. The sliding slot thus structured can gradually increase the elastic force then gradually decrease the elastic force.Type: ApplicationFiled: October 13, 2006Publication date: July 12, 2007Inventors: Shih-Ming Wang, Jo-Shun Chiang
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Patent number: 7131928Abstract: A differential transmission apparatus. The differential transmission apparatus includes a base, a fixed gear, a rotating member, an output shaft, a reduction gear, an acceleration gear, a shifting device, at least one transmission shaft, at least one first gear, at least one second gear, and at least one third gear. The fixed gear is fixed on the base. The rotating member is adjacent to the fixed gear. The output shaft rotatably fits in the rotating member, fixed gear, and base. The reduction gear is slidably disposed on the output shaft. The acceleration gear is slidably disposed on the output shaft and connected to the reduction gear. The shifting device is disposed on the base and output shaft. The first, second, and third gears are fixed on the transmission shaft and the third gear is between the second gear and the rotating member.Type: GrantFiled: December 6, 2004Date of Patent: November 7, 2006Assignee: Chung Yuan Christian UniversityInventors: Shih-Ming Wang, Ren-Jeng Wang
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Patent number: 7131927Abstract: A coaxial-type differential transmission apparatus. A fixed gear fixed on a base. An intermediate member is adjacent to the fixed gear. An input shaft is rotatably fitted in the base and fixed gear and is fixed on the intermediate member. An output shaft is rotatably adjacent to the input shaft and is coaxial thereto. A reduction gear and an acceleration gear are slidably disposed on the output shaft. The acceleration gear is between the reduction gear and the intermediate member. A shifting device is disposed on the base and output shaft. A transmission shaft is rotatably fitted in the intermediate member. A first gear is fixed on the transmission shaft and is adjacent to the intermediate member. A second gear is fixed on the transmission shaft. A third gear is fixed on the transmission shaft and between the second gear and the intermediate member.Type: GrantFiled: December 7, 2004Date of Patent: November 7, 2006Assignee: Chung Yuan Christian UniversityInventors: Shih-Ming Wang, Ren-Jeng Wang
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Publication number: 20060188351Abstract: A computer assisted detecting and restraining system for cutting tool chatter. The system comprises a network monitor system, a signal extraction system, a chatter detection system, and a chatter restraint system. The network monitor system monitors a machine tool and receives voice caused during a cutting process. The signal extraction system extracts vibration displacement signals generated during the cutting process converts the vibration displacement signals to digital signals and transfers the digitalized signals. The chatter detection system receives the digitalized vibration displacement signals and sends a control command when the signals are high frequency signals. The chatter restraint system receives the control command and adjusts rotation rates of a spindle of the machine tool accordingly.Type: ApplicationFiled: October 25, 2005Publication date: August 24, 2006Applicant: CHUNG YUAN CHRISTIAN UNIVERSITYInventors: Shih-Ming Wang, Hsiang-Yung Hsieh
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Patent number: 7086814Abstract: A C-type column structure. The C-type column structure includes a hollow column, a column extending portion, and a support portion. The hollow column is formed with a closed U-shaped cross section, a curved portion, a trapezoid portion, a first end surface, and a second end surface. The curved portion is connected to the trapezoid portion to form the hollow column. The first end surface is opposite to the second end surface. The hollow column expands uniformly from the first end surface to the second end surface and has a predetermined thickness. The column extending portion is connected to the trapezoid portion and is adjacent to the first end surface. The support portion is connected to the trapezoid and column extending portions and is under the column extending portion.Type: GrantFiled: December 6, 2004Date of Patent: August 8, 2006Assignee: Chung Yuan Christian UniversityInventors: Shih-Ming Wang, Hung-Wei Liao
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Publication number: 20060159538Abstract: A detecting and suppressing control method for milling tool chatter. Milling parameters are defined. A milling device is initiated using the milling parameters. Milling signals are extracted using a sensor installed on the milling device. It is determined whether chatter relating to the milling device occurs, comprising determining whether the milling signals are high frequency signals, and, if the milling signals are high frequency signals, determining whether signal points generated based on the milling signals are located in a stable area derived using a sliding function. When the signal points are located in the stable area, the milling signals are stable milling signals. When the signal points are located outside the stable area, rotational rates of a spindle of the milling device are adjusted.Type: ApplicationFiled: July 22, 2005Publication date: July 20, 2006Inventors: Shih-Ming Wang, Hsiang-Yung Hsieh
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Publication number: 20050260053Abstract: A C-type column structure. The C-type column structure includes a hollow column, a column extending portion, and a support portion. The hollow column is formed with a closed U-shaped cross section, a curved portion, a trapezoid portion, a first end surface, and a second end surface. The curved portion is connected to the trapezoid portion to form the hollow column. The first end surface is opposite to the second end surface. The hollow column expands uniformly from the first end surface to the second end surface and has a predetermined thickness. The column extending portion is connected to the trapezoid portion and is adjacent to the first end surface. The support portion is connected to the trapezoid and column extending portions and is under the column extending portion.Type: ApplicationFiled: December 6, 2004Publication date: November 24, 2005Inventors: Shih-Ming Wang, Hung-Wei Liao
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Publication number: 20050261103Abstract: A coaxial-type differential transmission apparatus. A fixed gear fixed on a base. An intermediate member is adjacent to the fixed gear. An input shaft is rotatably fitted in the base and fixed gear and is fixed on the intermediate member. An output shaft is rotatably adjacent to the input shaft and is coaxial thereto. A reduction gear and an acceleration gear are slidably disposed on the output shaft. The acceleration gear is between the reduction gear and the intermediate member. A shifting device is disposed on the base and output shaft. A transmission shaft is rotatably fitted in the intermediate member. A first gear is fixed on the transmission shaft and is adjacent to the intermediate member. A second gear is fixed on the transmission shaft. A third gear is fixed on the transmission shaft and between the second gear and the intermediate member.Type: ApplicationFiled: December 7, 2004Publication date: November 24, 2005Inventors: Shih-Ming Wang, Ren-Jeng Wang
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Publication number: 20050261106Abstract: A differential transmission apparatus. The differential transmission apparatus includes a base, a fixed gear, a rotating member, an output shaft, a reduction gear, an acceleration gear, a shifting device, at least one transmission shaft, at least one first gear, at least one second gear, and at least one third gear. The fixed gear is fixed on the base. The rotating member is adjacent to the fixed gear. The output shaft rotatably fits in the rotating member, fixed gear, and base. The reduction gear is slidably disposed on the output shaft. The acceleration gear is slidably disposed on the output shaft and connected to the reduction gear. The shifting device is disposed on the base and output shaft. The first, second, and third gears are fixed on the transmission shaft and the third gear is between the second gear and the rotating member.Type: ApplicationFiled: December 6, 2004Publication date: November 24, 2005Inventors: Shih-Ming Wang, Ren-Jeng Wang