Douglas Elmer Knight, 667088 Cottage Rd, Bellaire, MI 49615

5651517, Jul 29, 1997

Jan 11, 1996

8/584402

Dale R. Stevens - Adams Center NY
Anthony W. Lumbis - Watertown NY
Clifford G. Smyrl - St. Paul MN
Douglas G. Knight - New Brighton MN

New York Air Brake Corporation - Watertown NY

B61L 2500

246 2R

A method of serialization including providing a parameter which varies along the length of the train and transmitting a synchronization signal along the length of the train to the local nodes at each car. The parameter is measured at each node with respect to the occurrence of the synchronization signal at the node. Serialization of the cars is then performed as a function of the measured parameters. One method is to provide the parameters by transmitting a serial signal which propagates through the train at a slower rate than the synchronization signal and then measuring the difference in time between the receipt of the synchronization and the serial signal at each node. A second method of implementation is to create a pressure gradient in the brake pipe along the length of the train. The brake pipe pressure or flow rate is read at each node upon receipt of the synchronization signal. As a third alternative, an electric load is provided at each node in parallel to a trainline running through the train.

5054090, Oct 1, 1991

Jul 20, 1990

7/555173

Arnold W. Knight - New Brighton MN
Douglas C. Knight - New Brighton MN

G06K 968

382 4

A method and apparatus for parallel processing "live" and pre-recorded "reference" fingerprint data for comparison purposes. An array sensor images a selected portion of a live fingerprint and video means produce corresponding digital live image data. The pre-recorded, multi-pixel reference data and the image data are scanned relative to one another via recirculating First-in-First-Out (FIFO) buffer memories and row and column shift means. Exclusive OR (XOR), summation and accumulation circuitry simultaneously compare the reference and image data over a plurality of correlation cycles and compute a correlation value for each correlation cycle. A microprocessor determines the best correlation value of the reference and image data from a tabular store of correlation values for each correlation cycle relative to a PASS/FAIL threshold.

2005014, Jul 7, 2005

Mar 8, 2005

11/074917

James Truc - Eden Prairie MN, US
Gregg Ovsak - Richfield MN, US
Calvin Wright - Minnetonka MN, US
Peter Wolter - St. Louis Park MN, US
Richard Lundeen - Eden Prairie MN, US
Douglas Knight - South St. Paul MN, US
James Anderson - Lake Elmo MN, US
Dennis Deutsch - Hastings MN, US
John Severson - Minnetonka MN, US

H04N001/04
H04N001/047
H04N001/06
H04N001/12
H04N001/48

358506000, 358475000, 358487000, 358527000, 358509000, 358446000, 358493000, 358498000

The image scanning system () of the present invention scans slides and film strips containing photographic images and creates a corresponding plurality of digital representations of the photographic images. The system () includes a touch screen monitor (), a computer (), a scanner (), a high speed interface () and a printer (). The scanner () includes a light source () for projecting light through the film strip. A light sensor () senses the light projected through the film strip and generates pixel data. A film drive advances the film strip between the light source () and the light sensor (). A lens located between the light source and the light sensor directs the light projected through the film strip onto the light sensor (). The pixel data is transmitted through the high speed interface () to the computer () for processing operations. After the pixel data has been processed, digital images are displayed on the monitor () and may also be printed out.