1
David K Biegelsen, Bryan Preas, Lars Erik Swartz, Warren B Jackson: Two dimensional object position sensor. Xerox Corporation, Oliff & Berridge, November 5, 2002: US06476376 (133 worldwide citation)

Apparatus and method for sensing the position, size, shape and location orientation of one or more objects in two dimensions. The position sensor uses arrays of light sensors mounted on a substrate. When an object passes in proximity to the light sensors light energy from a plurality of light source ...


2
David K Biegelsen, Warren B Jackson, Patrick C P Cheung, Mark H Yim, Andrew A Berlin: Microdevice valve structures to fluid control. Xerox Corporation, Robert A Burtzlaff, October 26, 1999: US05971355 (113 worldwide citation)

A valve array system including microelectromechanical valves embedded in a dielectric substrate is disclosed. These microelectromechanical valves can be batch fabricated using resin impregnated dielectric laminates having photolithographically formed circuitry for electrical connections. Movable com ...


3
David K Biegelsen, Eric Peeters, Warren Jackson: Pressure and force profile sensor and method for detecting pressure. Xerox Corporation, Oliff & Berridge, April 4, 2000: US06044717 (109 worldwide citation)

A pressure sensor is provided which can detect the presence, absence or magnitude of pressure, as well as a pressure profile. The pressure sensor includes a sensor membrane and a sensor device. The sensor membrane is flexible and may be constructed of a conductive material or may include a flexible ...


4
Warren B Jackson, David A Jared, Sumit Basu, David K Biegelsen: Position sensitive detector based image conversion system capable of preserving subpixel information. Xerox Corporation, Robert A Burtzlaff, May 19, 1998: US05754690 (95 worldwide citation)

An image detection and pixel processing system includes a plurality of position sensitive detector elements arranged to receive an image. Each position sensitive detector element provides information for determining both a total light intensity value within the position sensitive detector element an ...


5
David K Biegelsen, Nicholas K Sheridon, Noble M Johnson: Fabrication of quantum confinement semiconductor light-emitting devices. Xerox Corporation, March 4, 1997: US05607876 (89 worldwide citation)

The present invention consists of an electroluminescent structure and method of fabrication of that structure in materials which have an indirect bandgap in their bulk form. The processing steps can all be standard VLSI methods. Quantum columns, quantum wires or quantum dots may be formed, for examp ...


6
Warren B Jackson, David A Jared, Sumit Basu, David K Biegelsen: Macrodetector based image conversion system. Xerox Corporation, Robert A Burtzlaff, August 4, 1998: US05790699 (84 worldwide citation)

An image detection and pixel processing system includes a plurality of detector elements for receiving an image. The detector elements are subdivided into a plurality of macrodetectors, with each macrodetector constituting four or more detector elements, and with each macrodetector providing informa ...


7
Warren B Jackson, David K Biegelsen, Lars Erik Swartz, Andrew A Berlin, Raj B Apte, Robert A Sprague: Flexible object handling system using feedback controlled air jets. Xerox Corporation, Robert A Burtzlaff, June 3, 1997: US05634636 (79 worldwide citation)

A fluid transport system for moving flexible objects includes a conveyor configured to direct fluid flow against opposite sides of flexible objects. A sensor unit senses motion state of flexible objects, and a motion analysis unit is connected to the sensor unit to calculate relative or absolute mov ...


8
Warren B Jackson, David K Biegelsen, Andrew A Berlin, Robert A Sprague, Todd A Cass: Paper property sensing system. Xerox Corporation, August 10, 1999: US05934140 (78 worldwide citation)

A sensor system for measuring physical properties of a sheet. In one embodiment, the sensor system measures paper curl and thickness using two sensors, each of which includes a member, a base, and measurement circuit. The two members are positioned in opposition to each other and both contact the sh ...


9
David K Biegelsen, Christopher L Chua, David K Fork: Photolithographically-patterned out-of-plane coil structures and method of making. Xerox Corporation, Jeannette M Walder, May 21, 2002: US06392524 (71 worldwide citation)

An out-of-plane micro-structure which can be used for on-chip integration of high-Q inductors and transformers places the magnetic field direction parallel to the substrate plane without requiring high aspect ratio processing. The photolithographically patterned coil structure includes an elastic me ...


10
David K Biegelsen, Warren B Jackson, Patrick C P Cheung, Mark H Yim, Andrew A Berlin: Conduit system for a valve array. Xerox Corporation, Robert A Burtzlaff, September 26, 2000: US06123316 (70 worldwide citation)

Construction of fluid conduit systems in printed circuit boards or other dielectric laminate substrates is disclosed. The fluid conduits can be angled or curved to provide greater directional control of fluid flow. Conduits are created by lamination of a first laminate layer and a second laminate la ...