Philip Fuhrman
Electrician in Wilmington, DE
License number
Delaware TH-0004389
Issued Date
Jul 24, 2008
Expiration Date
Jul 24, 2009
Category
Electrical Examiners
Type
Homeowner's Permit
Address
Address
2
Wilmington, DE 19809
Personal information
See more information about Philip Fuhrman at radaris.comName
Address
Phone
714 Lore Ave, Wilmington, DE 19809
Wilmington, DE
714 Lore Ave, Wilmington, DE 19809
71 Lore Ave, Wilmington, DE 19809
Professional information
Analog-To-Digital Converter
US Patent:
6384760, May 7, 2002
Filed:
May 30, 2001
Appl. No.:
09/866741
Inventors:
Philip B. Fuhrman - Wilmington DE
Assignee:
Agilent Technologies, Inc. - Palo Alto CA
International Classification:
H03M 100
US Classification:
341128, 341118, 341155, 341120, 341167, 341136, 341172, 341166, 341168
Abstract:
A multislope, continuously integrating analog-to-digital converter includes a first switch coupled to a first reference voltage, a second switch coupled to a second reference voltage, a third switch coupled to an input voltage, and an integrator operably coupled to the first, second, and third switches. The analog-to-digital converter utilizes a primary discharge current of opposite polarity to a secondary discharge current. The analog-to-digital converter has a high resolution due to a small reference voltage, and a high dynamic range due to a large reference voltage. The analog-to-digital converter can operate in either a conversion mode or a calibration mode. During the calibration mode, a calibration factor is calculated for use during the conversion mode. When applied to the conversion mode, the calibration factor corrects for errors in the conversion process.
Calibration Of Analog-To-Digital Converters
US Patent:
6433713, Aug 13, 2002
Filed:
May 31, 2001
Appl. No.:
09/867580
Inventors:
Philip B. Fuhrman - Wilmington DE
Assignee:
Agilent Technologies, Inc. - Palo Alto CA
International Classification:
H03M 110
US Classification:
341120, 341118, 341168
Abstract:
A multislope, continuously integrating analog-to-digital converter can operate in either a conversion mode or a calibration mode. During the calibration mode, a calibration factor is calculated for use during the conversion mode. When applied to the conversion mode, the calibration factor corrects for errors in the conversion process.
Methods For Automatically Programming Spatial Information In Robotic Systems
US Patent:
5345540, Sep 6, 1994
Filed:
Jul 12, 1991
Appl. No.:
7/728926
Inventors:
Arthur Schleifer - Palo Alto CA
Joseph C. Roark - Los Altos CA
John S. Poole - Landenberg PA
Gary B. Gordon - Saratoga CA
Gilbert Segal - Hockessin DE
Philip B. Fuhrman - Wilmington DE
Joseph C. Roark - Los Altos CA
John S. Poole - Landenberg PA
Gary B. Gordon - Saratoga CA
Gilbert Segal - Hockessin DE
Philip B. Fuhrman - Wilmington DE
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G05B 1900
US Classification:
395 86
Abstract:
Methods of programming mechanical manipulators are disclosed that permit a mechanical manipulator to be programmed to perform coordinated motions between one or more modules comprised of equipment with which the manipulator will interact by defining an origin point and one or more frame points related to each of the modules relative to the origin point. Each of the modules associated with a frame point is then identified and a module program describing pre-programmed manipulator motions related to each of the modules is accessed. Finally, a sequence of motions between the origin and each of the frame points of the modules is defined. The step of locating frame points can be carried out in several different ways, using a teach pendant or by automatically locating the module frame points using an infrared sensor, electric field sensor, acoustic sensor, or force sensor. Methods of programming a mechanical manipulator to move between an origin point and one or more modules are also disclosed which comprise the steps of creating a programming element representative of each module and its corresponding module program. An origin frame point is again defined and the programming elements are assembled to correspond to one or more modules that represent the desired manipulator motion.
Positional Calibration Of Robotic Arm Joints Relative To The Gravity Vector
US Patent:
5239855, Aug 31, 1993
Filed:
Jul 12, 1991
Appl. No.:
7/729748
Inventors:
Arthur Schleifer - Palo Alto CA
Philip B. Fuhrman - Wilmington DE
Mark E. Shuman - West Chester PA
Philip B. Fuhrman - Wilmington DE
Mark E. Shuman - West Chester PA
Assignee:
Hewlett-Packard Company - Palo Alto CA
International Classification:
G05B 1942
US Classification:
73 1D
Abstract:
Methods of calibrating robotic manipulators are disclosed. The present invention uses an inclinometer or a leveling device to provide a reference to calibrate each encoder for each joint of a robotic manipulator. The inclinometer or leveling device is most preferably an electronic protractor or similar device that is placed on a surface of one of the links and the joint is moved until the link is at a preselected angle. In certain embodiments an offset position between the level position and an index position for an absolute encoder is determined and absolute encoder data describing the offset position is recorded. Preferably, the inclinometer is capable of generating a signal that indicates the angle of the surface of the link with respect to the gravity vector. This signal can be used to control the joints and automatically calibrate the manipulator.