1
Bernard Dieny, Bruce A Gurney, Steven E Lambert, Daniele Mauri, Stuart S P Parkin, Virgil S Speriosu, Dennis R Wilhoit: Magnetoresistive sensor based on the spin valve effect. International Business Machines Corporation, Otto Schmid Jr, Leslie G Murray, April 27, 1993: US05206590 (296 worldwide citation)

A magnetoresistive (MR) sensor comprising a first and a second thin film layer of a magnetic material separated by a thin film layer of a non-magnetic metallic material. The first ferromagnetic layer is magnetically soft. The magnetization direction of the first layer of magnetic material is set sub ...


2
Philip J Russell, Glenwood S Weinert: Application generator for use in verifying a hierarchical circuit design. International Business Machines Corporation, Leslie G Murray, Whitham Curtis Witham & McGinn, March 5, 1996: US05497334 (219 worldwide citation)

A computer based system and method is provided for generating a design verification scheme for a hierarchical circuit design. A set of directives received describing design checks to be performed on a hierarchical circuit design. The directives are functionally decomposed into primitive functions re ...


3
Michael J Filip, Kathy L Karunungan, Jeffrey C Kramer, Lucille C Lee, Danielle L Moore, Charles C Shih, Jaroslaw J Sydir: System for using object-oriented hierarchical representation to implement a configuration database for a layered computer network communications subsystem. International Business Machines Corporation, Leslie G Murray, May 9, 1995: US05414812 (216 worldwide citation)

An object-oriented, hierarchical model of a computer network layered communications subsystem is implemented in a configuration database subsystem to create and maintain a configuration database and to provide configuration data to the layered communications subsystem. The layered communications sub ...


4
Bernard Dieny, Bruce A Gurney, Serhat Metin, Stuart S P Parkin, Virgil S Speriosu: Magnetoresistive sensor based on the spin valve effect. International Business Machines Corporation, Otto Schmid Jr, Leslie G Murray, October 27, 1992: US05159513 (173 worldwide citation)

A magnetoresistive (MR) sensor comprising a layered structure formed on a substrate includes a first and a second thin film layer of magnetic material separated by a thin film layer of non-magnetic metallic material such as Cu, Au, or Ag, with at least one of the layers of ferromagnetic material for ...


5
Charles Cheng Yuan Tung: Piece-wise print image enhancement for dot matrix printers. Hewlett Packard Company, Leslie G Murray, July 11, 1989: US04847641 (164 worldwide citation)

Print enhancement circuitry to enhance the printed image produced by a laser beam printer is interposed between the character generator circuits and the laser drive circuits to modify the laser drive signals provided by the character generator circuits. Bit data representing successive lines of the ...


6
Peter M Baumgart, Bernard Dieny, Bruce A Gurney, Jean Pierre Nozieres, Virgil S Speriosu, Dennis R Wilhoit: Dual spin valve magnetoresistive sensor. International Business Machines Corporation, Leslie G Murray, February 15, 1994: US05287238 (155 worldwide citation)

A magnetoresistive read sensor based on the spin valve effect and having a multilayered, dual spin valve structure is described. The sensor read element includes first, second and third layers of ferromagnetic material separated from each other by layers of non-magnetic metallic material. The first ...


7
Christopher H Bajorek, A David Erpelding, Glen A Garfunkel, Surya Pattanaik, Neil L Robertson, Albert J Wallash: Shorted magnetoresistive head leads for electrical overstress and electrostatic discharge protection during manufacture of a magnetic storage system. International Business Machines Corporation, Leslie G Murray, November 7, 1995: US05465186 (128 worldwide citation)

The magnetoresistive (MR) sensor in a magnetic read/write transducer is protected against the effects of electrical overstress and electrostatic discharge during the manufacture and assembly of a magnetic storage system. The conductive leads of a magnetoresistive (MR) sensor element are shorted toge ...


8
Roy D Cideciyan, Evangelos S Eleftheriou: Coding method and apparatus using quaternary codes. International Business Machines Corporation, Leslie G Murray, July 19, 1994: US05331320 (122 worldwide citation)

In digital data transmission and storage, binary data strings are encoded into symbols from a quaternary alphabet by a specific inventive use of finite-state machines. The novel, high-rate quaternary codes offer spectral shaping properties together with a significant increase in noise margin when us ...


9
R Frank Bell: Dual mode amplifier. Hewlett Packard Company, F David LaRiviere, William H MacAllister, Leslie G Murray, May 1, 1984: US04446440 (108 worldwide citation)

An apparatus amplifies a signal in two different modes. The apparatus amplifies the signal in a linear mode when the voltage of the signal is much less than the voltage of the power source, and in a switching mode when the signal is at other voltages.


10
Vernon L Knowles, Robert E Kier: Sampled servo code format and system for a disc drive. Hewlett Packard Company, Leslie G Murray, April 18, 1989: US04823212 (96 worldwide citation)

The system and method for normalizing the amplitude of servo code derived signals in a disc drive, includes an improved embedded servo code format of separate magnetic dibit fields, recorded in half track steps. One magnetic dibit field is an automatic gain control field in which the magnetic head s ...