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Michael E Flynn, Scott Arnold, Stephen J DeLaHunt, Tryggve Fossum, Ricky C Hetherington, David J Webb: Scheme for insuring data consistency between a plurality of cache memories and the main memory in a multi-processor system. Digital Equipment Corporation, Arnold White & Durkee, June 22, 1993: US05222224 (110 worldwide citation)

A method for insuring data consistency between a plurality of individual processor cache memories and the main memory in a multi-processor computer system is provided which is capable of (1) detecting when one of a set of predefined data inconsistency states occurs as a data transaction request is b ...


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Gian Luca Bona, Fritz Gfeller, Heinz Jaeckel, David J Webb: Self-aligned optical waveguide to laser structure and method for making the same. International Business Machines Corporation, Richard Lau, November 2, 1993: US05259049 (36 worldwide citation)

Automatic alignment of an optical waveguide to a ridge waveguide laser is accomplished by transferring the ridge structure of the laser to a substrate by etching a mirror groove. The transferred ridge structure serves as a base for the deposition of waveguide layers. The thickness of the waveguide l ...


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Peter L Buchmann, Peter Vettiger, Otto Voegeli, David J Webb: Method for improving the planarity of etched mirror facets. International Business Machines Corporation, Donald M Boles, July 16, 1991: US05032219 (36 worldwide citation)

A method, and device produced therewith, for improving the planarity of etched mirror facets 18 of integrated optic structures with non-planar stripe waveguides, such as ridge or groove diode lasers or passive devices such as modulators and switches. The curvature of the mirror facet surface at the ...


5
Fran├žois G Abel, Peter Buchmann, Antonius Engbersen, Andreas Herkersdorf, Ronald P Luijten, David J Webb: Load balancing system, apparatus and method. International Business Machines Corporation, Thomas Beck, Louis Herzberg, July 27, 2004: US06768716 (36 worldwide citation)

A real-time load-balancing system for distributing a sequence of incoming data packets emanating from a high speed communication line to a plurality of processing means, each operating at a capacity that is lower than the capacity of the high speed communication line; the system according to the inv ...


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Peter Buchmann, David J Webb, Peter Vettiger: Bilithic composite for optoelectronic integration. International Business Machines Corporation, June 7, 1994: US05319725 (30 worldwide citation)

Optoelectronic composite consisting of two chips, the first chip 10 being made of a first material, the second one 13 being made of another material. The first chip 10, for example, comprises a multiplicity of active optoelectronic devices e.g. a laser diode 11 and a photo diode 12, all being monoli ...


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Ronald P Luijten, David J Webb: Method and apparatus for ATM switching. International Business Machines Corporation, Gerald R Woods, March 28, 2000: US06044077 (29 worldwide citation)

A switch for use in an ATM network is disclosed. The switch is designed to perform a function beyond that normally achievable with a virtual path switch functioning in accordance with the ATM standard. The switch according to the invention has data stored in a look-up table (431-433) which allows it ...


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Christoph S Harder, Wilhelm Heuberger, Peter D Hoh, David J Webb: Process for forming the ridge structure of a self-aligned semiconductor laser. International Business Machines Corporation, Richard A Romanchik, October 22, 1991: US05059552 (24 worldwide citation)

A process for forming the ridge structure of a self-aligned InP-system, double heterostructure (DH) laser, particularly useful for long wavelength devices as required for signal transmission systems includes a thin Si.sub.3 N.sub.4 layer (41) inserted between a photoresist mask (42) that defines the ...


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Hans P Dietrich, Hanspeter Ott, David J Webb: Wafer holder method and apparatus in a vacuum deposition system. International Business Machines Corporation, Donald M Boles, July 9, 1991: US05029555 (21 worldwide citation)

A method and apparatus for maintaining orientation of a wafer with respect to the wafer holder and a source emission is disclosed.


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Peter L Buchmann, Peter Vettiger, Otto Voegeli, David J Webb: Improved planar etched mirror facets. Donald M Boles, April 7, 1992: US05103493 (20 worldwide citation)

A method, and device produced therewith, for improving the planarity of etched mirror facets 18 of integrated optic structures with non-planar stripe waveguides, such as ridge or groove diode lasers or passive devices such as modulators and switches. The curvature of the mirror facet surface at the ...