Patents by Inventor Marc R. Schuman
Marc R. Schuman 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: 7031045Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.Type: GrantFiled: October 28, 2003Date of Patent: April 18, 2006Inventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
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Patent number: 6795602Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) that receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) which may be selected as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflector (172) which indicate its orientation. A portcard (406) included in the switch (400) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the received coordinates with the orientation signals received from the deflector (172) and adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals.Type: GrantFiled: December 1, 2000Date of Patent: September 21, 2004Inventors: Armand P. Neukermans, Timothy G. Slater, Tyler L. Baughman, James P. Downing, John S. Forker, Gregory A. Reznick, Sam Calmes, Steven M. Clark, Jack D. Foster, Marc R. Schuman, Rajiv Ramaswami
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Publication number: 20040150872Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.Type: ApplicationFiled: October 28, 2003Publication date: August 5, 2004Applicant: Xros, Inc., a California corporationInventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
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Patent number: 6744550Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.Type: GrantFiled: May 28, 2002Date of Patent: June 1, 2004Assignee: Xros, Inc.Inventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
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Patent number: 6694072Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) that receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) arranged in a V-shape which may be selected as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflector (172) which indicate its orientation. A portcard (406) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the received coordinates with the orientation signals and adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals.Type: GrantFiled: January 11, 2002Date of Patent: February 17, 2004Inventors: Armand P. Neukermans, Steven M. Clark, Marc R. Schuman, Timothy G. Slater, Jack D. Foster, Sam Calmes
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Publication number: 20030076576Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.Type: ApplicationFiled: May 28, 2002Publication date: April 24, 2003Applicant: Xros, Inc.Inventors: Armand P. Neukermans, Timothy G. Slater, Marc R. Schuman, Jack D. Foster, Sam Calmes, Sateesh S. Bajikar, Arun Malhotra, Jane Ang, Jerry Hurst, John Green
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Publication number: 20020164110Abstract: A fiber optic switch (400) includes a fiber optic switching module (100) that receives and fixes ends (104) of optical fibers (106). The module (100) includes numerous reflective light beam deflectors (172) which may be selected as pairs for coupling a beam of light (108) between a pair of optical fibers (106). The module (100) also produces orientation signals from each deflector (172) which indicate its orientation. A portcard (406) included in the switch (400) supplies drive signals to the module (100) for orienting at least one deflector (172). The portcard (406) also receives the orientation signals produced by that deflector (172) together with coordinates that specify an orientation for the deflector (172). The portcard (406) compares the received coordinates with the orientation signals received from the deflector (172) and adjusts the drive signals supplied to the module (100) to reduce any difference between the received coordinates and the orientation signals.Type: ApplicationFiled: December 1, 2000Publication date: November 7, 2002Inventors: Arnold P. Neukermans, Timothy G. Slater, Tyler L. Baughman, James P. Dowing, John S. forker, Gregory A. Reznick, Sam Calmes, Steven M. Clark, Jack D. Foster, Marc R. Schuman, Rajiv Ramaswami
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Patent number: 6445844Abstract: A fiber optic switch includes a fiber optic switching module that receives and fixes ends of optical fibers. The module includes numerous reflective light beam deflectors which may be selected as pairs for coupling a beam of light between a pair of optical fibers. The module also produces orientation signals from each deflector which indicate its orientation. A portcard included in the switch supplies drive signals to the module for orienting at least one deflector. The portcard also receives the orientation signals produced by that deflector together with coordinates that specify an orientation for the deflector. The portcard compares the received coordinates with the orientation signals received from the deflector and adjusts the drive signals supplied to the module to reduce any difference between the received coordinates and the orientation signals. The switch also employs optical alignment to precisely orient pairs of deflectors coupling a beam of light between optical fibers.Type: GrantFiled: December 21, 1999Date of Patent: September 3, 2002Assignee: XROS, Inc.Inventors: Armand P. Neukermans, Timothy G. Slater, Tyler L. Baughman, James P. Downing, John S. Forker, Gregory A. Reznick, Sam Calmes, Steven M. Clark, Jack D. Foster, Marc R. Schuman, Rajiv Ramaswami
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Patent number: 5507179Abstract: The synchronous sampling scanning force microscope includes a reflective cantilever arm having a free end which is oscillated at a frequency different from the resonance frequency of the cantilever arm. The motion of the oscillating cantilever arm is measured, to generate a deflection signal indicative of the amplitude of deflection or phase shift of the cantilever arm. Selected portions of cycles of the output signal are sampled, for generating output signal data indicative of deflection of the near and far excursions of the probe. The method and apparatus permit monitoring of compliance of the surface of the specimen by multiple sampling at a rate greater than the period of oscillation of the cantilever probe of the microscope.Type: GrantFiled: December 21, 1994Date of Patent: April 16, 1996Assignee: TopometrixInventors: Ronald C. Gamble, Paul E. West, Marc R. Schuman
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Patent number: 5469734Abstract: The scanning apparatus linearization and calibration system includes an electromechanical scanner having a sample stage portion, and a deflecting member, mounted between the scanning means and a fixed mounting member, that undergoes deflection in response to displacement of the scanner sample stage portion in at least one dimension of displacement. Strain gauges are mounted to the deflecting member for measuring the deflection of the deflecting member and for generating a deflection output signal indicative of an amount of deflection of the deflecting member, to provide a highly sensitive indication of actual displacement of the sample stage of the scanning apparatus. Control circuitry also provides for open loop displacement correction and for closed loop feedback correction of the position of the scanner sample stage.Type: GrantFiled: December 15, 1994Date of Patent: November 28, 1995Assignee: TopometrixInventor: Marc R. Schuman
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Patent number: 5406832Abstract: The synchronous sampling scanning force microscope includes a reflective cantilever arm having a free end which is oscillated at a frequency different from the resonance frequency of the cantilever arm. The motion of the oscillating cantilever arm is measured, to generate a deflection signal indicative of the amplitude of deflection or phase shift of the cantilever arm. Selected portions of cycles of the output signal are sampled, for generating output signal data indicative of deflection of the near and far excursions of the probe. The method and apparatus permit monitoring of compliance of the surface of the specimen by multiple sampling at a rate greater than the period of oscillation of the cantilever probe of the microscope.Type: GrantFiled: July 2, 1993Date of Patent: April 18, 1995Assignee: Topometrix CorporationInventors: Ronald C. Gamble, Paul E. West, Marc R. Schuman