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Fred Thomas Fred Thomas
Thomas Fred Charles, Bero James, Short Robert, Johnson Paul R: Apparatus for and method of verifying etching of optical servo information on magnetic media.. Minnesota Mining & Mfg, March 29, 1995: EP0645043-A1 (4 worldwide citation)

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occured. A light source (40) provides a collimated incident beam of light (42). The incident beam is focused to a point on the medium (57) and ...


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Fred Thomas Fred Thomas
Thomas Fred C Iii, Watson Brent, Fowler Steven M, Bero James M, Taylor Wilhelm: Distributed cryptography technique for protecting removable data storage media. Iomega, September 5, 2001: EP1130494-A2 (3 worldwide citation)

An apparatus, system and technique for cryptographically securing data in a secure computing environment are provided. Different components of a computer system have associated cryptographic data that is either common to the enterprise or unique to the system component for a given file transfer. In ...


4
Fred Thomas Fred Thomas
Thomas Fred C Iii, Bero James M, Watson Brent, Taylor Wilhelm, Fowler Steven M: Detachable data storage system protected with encryption. Iomega, September 7, 2001: JP2001-243105 (1 worldwide citation)

PROBLEM TO BE SOLVED: To provide a distributed encryption method for a portable storage system.SOLUTION: A computer system has a common cipher data component (C) for an enterprise system to transfer files and a unique cipher data component (U). One or more users (300), a host (90), a data storage (5 ...


5
Fred Thomas Fred Thomas
Johnson Paul R, Bero James, Carter Jeff G, Candia Anthony M, Kieger George T, Hales Ronald F, Thomas Fred C Iii: A method of and apparatus for removing debris from the floptical medium.. Minnesota Mining & Mfg, April 12, 1995: EP0647170-A1

A method and apparatus for removal of particulate waste materials or debris (10) from the floptical medium (1) after laser etching. A low temperature gas containing ice crystals (4) is applied at a predetermined angle while the floptical medium (1) is being rotated to improve the cleaning effect. Th ...


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Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Acousto-optical intensity control of laser beam. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/025341

The intensity of a beam of light used to etch concentric servo tracks (12) on a magnetic medium is adjusted with an acousto-optical device to maintain the energy density delivered by the beam substantially constant while the optics (71) which generate the beam move radially of the disk (61).


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Fred Thomas Fred Thomas
Thomas Fred Charles, Bero James, Short Robert, Johnson Paul R: Apparatus for and method of verifying etching of optical servo information on magnetic media. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026004

An apparatus and method for etching a point on the surface of a magnetic medium to reduce the reflectivity of the point and for verifying that proper etching occured. A light source (40) provides a collimated incident beam of light (42). The incident beam is focused to a point on the medium (57) and ...


9
Fred Thomas Fred Thomas
Thomas Fred Charles, Wallentine Don W, Bero James, Wilson Scott: Steering laser beam while etching optical servo tracks for magnetic disks. Minnesota Mining And Manufacturing Company, KURTZ Richard E, December 23, 1993: WO/1993/026007

A beam of light used to etch servo tracks on a magnetic disk is steered with an acousto-optical device to maintain the beam in concentrical patterns while mechanically moving the optics which generate the beam of light continuously radially of the disk.


10
Fred Thomas Fred Thomas
Johnson Paul R, Bero James, Carter Jeff G, Candia Anthony M, Kieger George T, Hales Ronald F, Thomas Fred C Iii: A method of and apparatus for removing debris from the floptical medium. Minnesota Mining And Manufacturing Company, KURTZ Richard E, January 6, 1994: WO/1994/000274

A method and apparatus for removal of particulate waste materials or debris (10) from the floptical medium (1) after laser etching. A low temperature gas containing ice crystals (4) is applied at a predetermined angle while the floptical medium (1) is being rotated to improve the cleaning effect. Th ...



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