1
Charles E Hessing, Boyd N Shelton, Robert K Barnes: Programmable start-of-sector pulse generator for a disk drive using embedded servo bursts and split data fields. Hewlett Packard Company, E F Oberheim, January 4, 1994: US05276564 (71 worldwide citation)

A disk drive system employs uniform size data blocks, with each disk having a sectorized track format and each sector of a track including at least one servo burst. Data blocks exhibit a constant data density across a plurality of disk tracks of differing radii. The system comprises read/write appar ...


2
Guenter Schkrohowsky, Cliff Harrison, Darrel W Poulter: Enclosure with metered air ducts for mounting and cooling modules. Hewlett Packard Company, E F Oberheim, December 19, 1995: US05477416 (66 worldwide citation)

An enclosure for cooling device modules has metered air passages in an air duct system. The device modules which are of the form of air ducts are inserted into the air duct system of the enclosure and have exhaust air passages which are coupled to metered air passages in the air duct system of the e ...


3
John A Propster, John H Rowan: Modular programmable signal processor. Hughes Aircraft Company, W J Adam, E F Oberheim, A W Karambelas, September 10, 1985: US04541048 (62 worldwide citation)

A signal processing system that has an improved modular architecture so that a selected number of arithmetic element (AE) units may be utilized with a single arithmetic element controller (AEC) unit to provide a system that can be readily expanded or decreased on computational ability. All of the AE ...


4
Michael J Little, Shi Yin Wong: Electronic pick-up device for transducing electrical energy and sound energy of the heart. Hughes Aircraft Company, E F Oberheim, W H MacAllister, A W Karambelas, December 7, 1982: US04362164 (60 worldwide citation)

A stethoscope transducer applicable as a conventional audio transducer and as a phonocardiogram transducer has a body which on one side mounts an electrode carrying chest bell and which on an opposite side mounts a conventional chest bell. A microphone and a rotor assembly are mounted in a cavity in ...


5
Shi Yin Wong, Michael J Little, J David Margerum, Thomas A Nussmeier, Theodore Calderone, Harry A Dellamano: Method and improved apparatus for analyzing activity. Hughes Aircraft Company, E F Oberheim, A W Karambelas, E N Kramsky, January 31, 1984: US04428380 (59 worldwide citation)

A method and associated means for producing simultaneous electrical representations of the electrical and acoustical (heart sound) activity of the heart, in which a pickup device and associated circuits produce a full wave rectified symmetrical heart sound signal annotated by pulses developed from t ...


6
Paul S Visher: Satellite arrangement providing effective use of the geostationary orbit. Hughes Aircraft Company, E F Oberheim, A W Karambelas, N B Hammond, March 1, 1983: US04375697 (52 worldwide citation)

A satellite squadron or cluster formation is disposed in a predetermined location in the geostationary orbit, including a plurality of controllably maneuverable communication satellites and a centrally located switching and control satellite. The satellites comprise a simulated geostationary communi ...


7
Charles E Shinn: Method and apparatus for detecting a start of data position in differing tracks. Hewlett Packard Company, E F Oberheim, September 7, 1993: US05243471 (49 worldwide citation)

A sector in each track of a moving memory recording media includes recordings defining a synchronizing field and a start of data field. Selected bit signals of bit signals derived from recordings are simultaneously combined in a plurality of differing bit signal combinations. The simultaneous existe ...


8
Roger R Sleger: Disk drive enclosure for minimizing stresses and a vibration damping seal therefor. Hewlett Packard Company, E F Oberheim, June 4, 1991: US05021905 (43 worldwide citation)

A disk drive in which the base and the cover are interconnected in spaced positions to provide a marginal, peripheral gap between confronting or adjacent faces or edges thereof. The gap is bridged, closed and sealed by means of a pressure sensitive adhesive tape, a viscoelastic tape, which is energy ...


9
Mark D Mastache: Aerodynamically releasable lock for a disk file actuator assembly. Hewlett Packard Company, E F Oberheim, July 30, 1991: US05036416 (42 worldwide citation)

An actuator lock for a disk drive in which fixed air vanes projecting between a adjacent disks divert air flow, generated by disk rotation, into a narrowing passage adjacent the disks to impinge upon an air vane forming part of a rotatably mounted actuator lock, to angularly move the actuator lock t ...


10
James C Anderson, Jeffrey S McAllister: Rotary actuator disk drive. Hewlett Packard Company, E F Oberheim, April 19, 1994: US05305169 (37 worldwide citation)

A rotary actuator disk drive in which the rotary actuator is driven by a motor comprising a movable coil and a stationary permanent magnet structure producing a magnetic field which links the coil. The rotary actuator comprises a load beam arm stack and a voice coil arm of electrical insulating mate ...