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Andrew Bi Qiang
Kang Hai Lim, Chi Zhang, Bi Qiang, Yuheng Wang, Choon W Ng, Mingzhong Ding, KianKeong Ooi: Determining microactuator failure in a multi-stage tracking system. Seagate Technology, Hollingsworth Davis, June 18, 2013: US08467144 (11 worldwide citation)

A multi-stage tracking control system includes at least a main actuator and a microactuator. The tracking control system is switched to a single-stage mode so that the main actuator alone provides tracking. A disturbance signal is applied to the microactuator while in the single-stage mode, and a fa ...


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Charles Sperry
Charles R Sperry, Dennis F McNamara, Suzanne M Scott: Material delivery tension and tracking system for use in solid imaging. 3D Systems, William A Simons, Keith A Roberson, December 23, 2008: US07467939 (26 worldwide citation)

A solid imaging apparatus and method employing a radiation transparent build material carrier and a build material dispensing system that accurately controls the thickness of the transferred layer of solidifiable liquid build material to the radiation transparent build material carrier to achieve hi ...


4
Charles Sperry
Dennis F McNamara Jr, Charles R Sperry, Suzanne M Scott: High-speed apparatus and method for forming inflated chambers. Sealed Air Corporation, Alston & Bird, September 30, 2008: US07429304 (9 worldwide citation)

An apparatus and a method for inflating an inflatable web in which, in one embodiment, the inflatable web is conveyed along a path of travel with an inflation element positioned between unsealed edges of the web and proximate the inflation ports of the web's inflatable chambers, and a tracking senso ...


5
Charles Sperry
Sperry Charles R, Scott Suzanne M, Mcnamara Dennis F: Material delivery tension and tracking system for use in solid imaging. 3d Systems, November 7, 2007: EP1852243-A2 (6 worldwide citation)

A solid imaging apparatus and method employing a radiation transparent build material carrier and a build material dispensing system that accurately controls the thickness of the transferred layer of solidifiable liquid build material to the radiation transparent build material carrier to achieve hi ...


6
Charles Sperry
Sperry Charles R, Scott Suzanne M, Mcnamara Dennis F Jr: High-speed apparatus and method for forming inflated chambers. Sealed Air, January 18, 2006: EP1616693-A2 (2 worldwide citation)

An apparatus and a method for inflating an inflatable web in which, in one embodiment, the inflatable web is conveyed along a path of travel with an inflation element positioned between unsealed edges of the web and proximate the inflation ports of the web's inflatable chambers, and a tracking senso ...


7
Brian Hoffman
Wenyi Zhao, Christopher J Hasser, William C Nowlin, Brian D Hoffman: Tool tracking systems and methods for image guided surgery. Intuitive Surgical, Intellectual Property Dept, Intutive Surgical, April 2, 2009: US20090088634-A1

In one embodiment of the invention, a tool tracking system is disclosed including a computer usable medium having computer readable program code to receive images of video frames from at least one camera and to perform image matching of a robotic instrument to determine video pose information of the ...


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Charles Sperry
Dennis F McNamara, Charles R Sperry, Suzanne M Scott: High-speed apparatus and method for forming inflated chambers. Sealed Air Corporation, Alston & Bird, December 28, 2006: US20060289108-A1

An apparatus and a method for inflating an inflatable web in which, in one embodiment, the inflatable web is conveyed along a path of travel with an inflation element positioned between unsealed edges of the web and proximate the inflation ports of the web's inflatable chambers, and a tracking senso ...


9
Charles Sperry
Charles R Sperry, Dennis F McNamara, Suzanne M Scott: Material Delivery Tension and Tracking System for Use in Solid Imaging. 3D Systems, 3D Systems, April 30, 2009: US20090110763-A1

A solid imaging apparatus and method employing a radiation transparent build material carrier and a build material dispensing system that accurately controls the thickness of the transferred layer of solidifiable liquid build material to the radiation transparent build material carrier to achieve hi ...


10
Charles Sperry
Charles R Sperry, Dennis F McNamara, Suzanne M Scott: Material delivery tension and tracking system for use in solid imaging. 3D Systems, Summa Allan & Additon Pa, November 8, 2007: US20070259066-A1

A solid imaging apparatus and method employing a radiation transparent build material carrier and a build material dispensing system that accurately controls the thickness of the transferred layer of solidifiable liquid build material to the radiation transparent build material carrier to achieve hi ...