Kenneth Alan Lindsay

US Patent:

56467940, Jul 8, 1997

Filed:

Dec 1, 1995

Appl. No.:

8/566326

Inventors:

Kenneth Alan Lindsay - Brockport NY
Joseph Stanley Jastrzembski - Rochester NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G08B 2100

US Classification:

360 3

Abstract:

A photofinishing apparatus for reading and/or writing magnetic information on a web of photographic film. The web comprises a plurality of individual strips of film secured together end to end. The apparatus includes a film track for receiving the web, a pair of drive rollers for moving the film web through the film track, a magnetic reader and/or writer for reading and/or writing magnetic data on the web, and a detection device for detecting metal objects in the web. The detection device is located at a point in the film track prior to the magnetic reader and/or writer. A monitoring device monitors the change in voltage across two space points on the film track for determining when a metal object is in the web and for producing a signal which is used to stop the film web.

US Patent:

56659504, Sep 9, 1997

Filed:

May 30, 1995

Appl. No.:

8/453434

Inventors:

Bruce E. Rottner - Rochester NY
Kenneth Alan Lindsay - Brockport NY
William Joseph Clare - Bergen NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G06F 1700

US Classification:

235375

Abstract:

A reader for reading bar code symbols containing so called "fat bits" arranged on exposed film is described. A strip of film 10 which has one or more frames 11 has a boundary edge 13 with space in which zero, one, or two fat bits 14 is provided for each frame 11. A light source 28 directs light through the boundary edge 13 of the strip 10. A pair of optical sensors 25, 27 receives the light directed through the boundary edge 13. The sensors 25, 27 each output a signal corresponding to the presence or absence of a fat bit to a detector circuit 220. The detector circuit 220 outputs a signal corresponding to the fat bit to a controller 250 as the strip moves between the light source 28 and the sensors 25, 27. An encoder 230 measures the displacement of the strip 10 as it moves, and outputs pulse signals to the controller 250 representative of units of strip 10 displacement. The controller 250, while receiving the output from the detector circuit 220, measures the width of the fat bit 14 by translating the pulse signals from the encoder 230 into signals representative of the width of the fat bit.

US Patent:

60377356, Mar 14, 2000

Filed:

Mar 1, 1999

Appl. No.:

9/260615

Inventors:

Mark S. Janosky - Rochester NY
Kenneth A. Lindsay - Brockport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G05B 1118

US Classification:

318608

Abstract:

A slow-speed servomechanism includes a motor for driving a load; a direct drive transmission between the motor and the load; an incremental optical encoder connected to the load, the encoder having analog sine and cosine outputs; an analog to digital converter for converting the sine and cosine analog values to digital values; and a digital controller, connected to the motor and the analog to digital converter, for controlling the motor. The digital controller includes an angle decoder responsive to the sine and cosine digital values from the analog to digital converter to produce a relative position count indicating a position within one sine and cosine signal pair, a cycle counter responsive to the relative position count for producing an absolute position count within the operating range of the servomechanism by determining which sine cosine pair is being measured, the angle decoder and cycle counter performing at least four angle decodes within each encoder sine and cosine cycle; a command generator responsive to a user defined desired motion of the load to output a desired count; a phase detector responsive to the absolute position count from the cycle counter and the desired count from the command generator to produce an error signal, and a compensation filter responsive to the error signal for generating a motor driving command.

US Patent:

6068206, May 30, 2000

Filed:

Jan 10, 1997

Appl. No.:

8/780196

Inventors:

Kenneth Alan Lindsay - Brockport NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

B65H 5938
G11B 1546

US Classification:

2423343

Abstract:

A web motion control system for controlling the tension in a web advanced at a preset velocity in a web transport path between a supply reel and a take-up reel without the use of tension loops, particularly for use in transporting spliced together, developed filmstrips through a film preparation work station. The web (film) is advanced in the web transport path in either a forward or rewind direction in either a velocity mode or a position mode by a motor driven capstan roller. The supply and take-up reels have a hub over which the web is wound in unknown supply and take-up web winding diameters. Take-up and supply reel motors and encoders are attached to the take-up and supply reels for imparting torques to the reels in response to motor torque signals to prevent slack in the film segments between the reels and the capstan roller and to provide reel encoder output signals on at least each 360. degree. rotation of the reels. A metering encoder rotated with the capstan roller is employed to develop an encoder count signal.

US Patent:

54463556, Aug 29, 1995

Filed:

Sep 28, 1993

Appl. No.:

8/127844

Inventors:

Mark S. Janosky - Rochester NY
David A. Johnson - Rochester NY
Kenneth A. Lindsay - Brockport NY
James T. Stoops - Walworth NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G05B 106

US Classification:

318661

Abstract:

A media transport system for controlling the position and velocity of media in a document production apparatus marking engine having a media positioning system driven by a motor, includes a motion control loop to control the motor; a sensor adapted to detect the position of the media and to create a trigonometric signal characteristic of the position of the media, the trigonometric signal comprising frequency and phase components; a resolver electronics subsystem adapted to trigonometrically process the trigonometric signal to create a resolved signal; and means for comparing the resolved signal to a reference clock signal of predetermined frequency and phase to provide an error signal used to control the motor that drives the media positioning system. The trigonometric signal may include a sine portion and a cosine portion. The sine portion of the trigonometric signal is sin(. omega. sub. e *t+. phi. sub.