Thomas R Carr

US Patent:

7505143, Mar 17, 2009

Filed:

May 17, 2005

Appl. No.:

11/130830

Inventors:

Harald F. Hess - La Jolla CA, US
Thomas Daniel Carr - Encinitas CA, US
Romain Sappey - San Diego CA, US

Assignee:

KLA-Tencor Corporation - San Jose CA

International Classification:

G01B 11/02

US Classification:

356505

Abstract:

In one embodiment, a method of dynamic reference plane compensation, comprises impinging radiation from a first radiation source onto a surface of an object; generating an uncompensated measurement signal from radiation reflected from a first location on the surface and a second location; generating a compensation signal from radiation reflected from a third location and a fourth location on the surface; and generating a compensated measurement signal using the uncompensated measurement signal and the compensation signal.

US Patent:

56278462, May 6, 1997

Filed:

Apr 19, 1995

Appl. No.:

8/424916

Inventors:

Thomas D. Carr - Leucadia CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H01S 303

US Classification:

371 65

Abstract:

A digital data reproducing circuit for use with a magnetic or optical data storage for detecting and flagging signal level drop-outs in pulse position modulated (PPM) recorded signal levels. Positive and negative peak amplitudes of a self-clocking PPM coded signal are compared to positive and negative valid information peak detectors to detect the clock and PPM data. Lower peak (in absolute terms) amplitudes that fall from the normal signal levels at the start of a drop-out and/or rise at the end of the drop-out, are detected by positive and negative drop-out peak detectors. The positive and negative drop-out peak detectors are inhibited when valid clock and data peak pulses are detected.

US Patent:

56152230, Mar 25, 1997

Filed:

Apr 19, 1995

Appl. No.:

8/424913

Inventors:

Thomas D. Carr - Leucadia CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H03M 504

US Classification:

371 65

Abstract:

A method of and apparatus for decoding data from positive and negative pulses of an encoded pulse train, e. g. a NRZ pulse train for PPM encoding, wherein the recorded data is subject to drop-outs and drop-ins. Data bits are decoded from valid positive and negative pulses exceeding positive and negative peak pulse thresholds. Drop-outs are identified in the encoded pulse train as a function of read out positive and negative pulse magnitudes not exceeding positive and negative thresholds, and drop-out flags are provided in lieu of the respective positive and negative pulses. Decoded data bit signs are stored in memory locations, and drop-out flags are stored in memory locations in relation to the stored data bit signs such that the beginning and/or end of a drop-out in the encoded pulse train is indicated. Drop-out flags are also stored in response to the occurrence of two successive valid positive pulses or two successive valid negative pulses in the pulse train. Additionally, drop-out flags are stored in response to the time out of an interval between successive positive or negative pulses.

US Patent:

58548092, Dec 29, 1998

Filed:

Apr 29, 1996

Appl. No.:

8/640985

Inventors:

Robert Earl Swanson - Del Mar CA
Thomas Daniel Carr - Leucadia CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H04B 166

US Classification:

375240

Abstract:

A data recovery technique for jitter tolerant peak detected channels. The number of consecutive zeros between ones are reproduced in a run-length coded, peak detected channel. The interval (time, distance) is measured between peaks of a run-length encoded digital data signal wherein peaks represent ones and absence of peaks represent zeros. A look-up-table is provided having entries for all possible intervals between peaks for the run-length code used and corresponding entries for the number of zeros between ones. The measured interval is applied to the look-up-table to produce a string of zero bits between one bits.

US Patent:

57371407, Apr 7, 1998

Filed:

Jun 7, 1996

Appl. No.:

8/660385

Inventors:

Thomas Daniel Carr - Leucadia CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G11B 502
G11B 509

US Classification:

360 29

Abstract:

In a magnetic recording reproducing apparatus, a detecting and decoding circuit comprising: a first integrator having an input for receiving a pulse position modulated (PPM) encoded signal reproduced from magnetic media, and having an output; a second integrator having an input coupled to said output of said first integrator and having an output; a first comparator having a noninverting input connected to the output of said first comparator, an inverting input connected to ground, and an output; a reset pulse circuit having an input connected to the output of said first comparator and an output connected to a reset terminal of said second integrator; a second comparator having a noninverting input connected to the output of said second integrator, an inverting input connected to ground, and an output; and a D flip-flop, having a data input connected to the output of said second comparator, a clock input connected to the output of said reset pulse circuit, and an output which outputs a decoded data signal of said received PPM encoded signal.

US Patent:

58951342, Apr 20, 1999

Filed:

May 16, 1997

Appl. No.:

8/857392

Inventors:

Jay D. Freeman - Leucadia CA
Thomas D. Carr - Leucadia CA
Frederick R. Chamberlain - Vista CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03B 1724

US Classification:

396319

Abstract:

A single use camera is preloaded with a roll of magnetically coated film with defined image frames. The camera has an exposure system for selectively exposing an image frame of the film in one of a plurality of image formats. The camera also includes a manually actuated mechanism coupled to a mounted permanent magnet. The magnet is movable to record a magnetic mark on the magnetically coated film at a predetermined location relative to an exposed image frame. The location of the mark is indicative of the image format of the exposed image frame.

US Patent:

57422443, Apr 21, 1998

Filed:

Apr 22, 1996

Appl. No.:

8/636075

Inventors:

Robert Earl Swanson - Del Mar CA
Thomas Daniel Carr - Leucadia CA
Norman Lee Koren - Encinitas CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

H03M 700

US Classification:

341 59

Abstract:

An input string of binary data bits which is a random sequence of 0s and 1s is selectively spaced encoded into an output string of binary channel bits which is a sequence of 0s and 1s. An input string of binary data bits are recursively encoded according to run-length selection means having rate p/q where p is the number of input data bits that are encoded into q-channel bits. The channel bits obey constraints such that the encoding specifies an ordered n element list of integers that are the lengths of the selected runs of consecutive zeros, denoted b. sub. 0 -1, b. sub. 1 -1,. . . , b. sub. n-1 -1, and such that the element list of integers does not contain all the integers between the minimum element, b. sub. 0, and the maximum element, b. sub. n-1.

US Patent:

50500171, Sep 17, 1991

Filed:

Aug 23, 1989

Appl. No.:

7/397547

Inventors:

Thomas D. Carr - Cardiff CA
James R. Harrer - San Diego CA

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G11B 5584

US Classification:

360 7712

Abstract:

A self-aligning configuration for establishing precisely where each of any number of tracks is to be recorded on a magnetic tape, utilizes therefor a photosensitive element (of perhaps even coarser structure than that of a given track), the signal output of which constitutes a measure of the location of the track(s). Thereafter, tracking control, say during playback, is pursuant to such signal, which is memorized.

Address:

1608 7 St W, West Fargo, ND 58078

VIN:

1FTPW14V27KC73920

Make:

FORD

Model:

F-150

Year:

2007