61
Kenneth W McBride: Optimization of survey coordinate transformations. Trimble Navigation, John Schipper, June 30, 1998: US05774826 (26 worldwide citation)

Method and apparatus for optimally transforming location coordinates from a global system GC1 of survey coordinates to a local system LC1 of coordinates in a location survey. Linear translation transformations T.sub.G1 and T.sub.L1 are determined that translate the GC1 coordinates and the LC1 coordi ...


62
John F Schipper, Walter C Melton: Secure communication of information. Trimble Navigation, John Schipper, November 19, 1996: US05577122 (26 worldwide citation)

Methods for secure communication of location and other information by two spaced apart receivers in a location determination (LD) system, such as GPS, GLONASS and LORAN-C, that use pseudorange corrections to enhance the accuracy of the computed present location of an LD receiver. A pseudorange corre ...


63
Gary W Ferrell: Method and apparatus for drying objects using aerosols. John Schipper, November 11, 1997: US05685086 (25 worldwide citation)

Method and apparatus for drying objects that may have been wetted in a manufacturing The objects are submerged in a rinse liquid in an enclosed chamber, and aerosol particles from a selected drying liquid are introduced into the chamber above the rinse liquid surface, forming a thin film on this sur ...


64
Gary W Ferrell, Thomas D Spencer: Methods for drying and cleaning objects using aerosols. Gary W Ferrell, John Schipper, October 12, 1999: US05964958 (24 worldwide citation)

Methods for drying and cleaning objects that may have been wetted or contaminated in a manufacturing process. The objects are submerged in a rinse liquid in an enclosed chamber, and aerosol particles from a selected liquid are introduced into the chamber above the rinse liquid surface, forming a thi ...


65
Stanley Stokowksi, David Wolze, Armand P Neukermans: Via hole checker. Tencor Instruments, Thomas Schneck, John Schipper, January 29, 1991: US04988877 (24 worldwide citation)

Method and apparatus for determining the amount, if any, of residue remaining at the bottom of an aperture in a layer of dielectric or insulator material. A layer of electrically conducting material is positioned adjacent to the aperture bottom, an electron collector is positioned adjacent to the mo ...


66
Len Sheynblat: Integrity monitoring of location and velocity coordinates from differential satellite positioning systems signals. Trimble Navigation, John Schipper, November 3, 1998: US05831576 (24 worldwide citation)

Methods for determining integrity of pseudorange and pseudorange rate signals received from a plurality of M Satellite Positioning System satellites (including GPS and GLONASS), numbered j=j1, j2, . . . , jM, at a reference SATPS station (RS), using pseudorange or pseudorange rate signals received f ...


67
John F Schipper, Eric B Rodal, James M Janky, David J Cowl: Vehicle tracker, mileage-time monitor and calibrator. Trimble Navigation, John Schipper, March 5, 2002: US06353796 (23 worldwide citation)

A system for monitoring location and speed of a vehicle, using a location determination system such as GPS, GLONASS or LORAN and an optional odometer or speedometer, for determining and recording the locations and times at which vehicle speed is less than a threshold speed for at least a threshold t ...


68
Joseph C Angert: Pad encryption method and software. SCM Microsystems, John Schipper, November 27, 2001: US06324287 (22 worldwide citation)

A pad encryption software architecture includes space on a floppy for storing the pad to be used with the encryption software. The pad is XOR generated with random numbers subject to redetermined offsets. If the pad is smaller than the text to be encrypted, then XOR takes several cycles with redeter ...


69
Gary W Ferrell, Thomas D Spencer, Rob E Carter: Apparatus for drying and cleaning objects using controlled aerosols and gases. Timothy H Gens, John Schipper, August 7, 2001: US06270584 (21 worldwide citation)

Method and apparatus for cleaning and/or drying objects that may have been wetted or contaminated in a manufacturing process. The objects are submerged in a rinse liquid in an enclosed chamber, and aerosol particles from a selected liquid are introduced into the chamber above the rinse liquid surfac ...


70
Qiyue John Zhang: Hybrid approach for antenna baseline self-survey and line bias calibration using GPS carrier phase. Trimble Navigation, John Schipper, May 9, 2000: US06061631 (20 worldwide citation)

Methods for estimation of the relative locations (baseline vectors) of two or more GPS signal antennas relative to each other and for estimation of line biases associated with each signal processing channel associated with each GPS signal antenna. Double difference carrier phase signal measurements ...