JOHN ANDRES CADWELL, JR
Pilots at Lattin Rd, Richland, WA

6805668, Oct 19, 2004

Jun 26, 2002

10/184100

John A. Cadwell - Richland WA

Cadwell Industries, Inc. - Kennewick WA

A61B 504

600300, 600529, 600544, 128925, 706924

A system and method for processing patient polysomnograph data are provided. An abstractor obtains raw patient polysomnograph data and generates a subset of the data to include selected factors, including data clusters. The subset of the patient polysomnograph data is transferred to two or more neural networks that process the data and generate sleep classification data. An integrator obtains the sleep classification data from the two or more neural networks by integrating the sleep classification data from each neural network. A cumulative sleep stage score is generated including confidence values and accuracy estimations for review.

7072521, Jul 4, 2006

Jun 19, 2001

09/885288

John A. Cadwell - Richland WA, US

Cadwell Industries, Inc. - Kennewick WA

G06K 9/36

382251, 382166

A system and method for optimizing and quantifying movement in synchronous video are provided. An image-processing computer obtains a synchronous video image, which is converted to color bitmap frames. Each frame is then sub-divided into smaller pixel blocks. Processed independently, the size of each pixel block is reduced by truncation of the color resolution and the use of a limited color table for the pixel block. The cumulative color difference in the pixel block is calculated and if it is below a threshold, the pixel block data will not be saved. Alternatively, the pixel block data is compressed and saved. Upon decoding, the color difference between each pixel and the same pixel in the preceding frame is compared. The color difference is assigned a pseudocolor and is displayed on the screen. Larger color differences are represented with more pronounced pseudocolors.

5566678, Oct 22, 1996

Jan 5, 1995

8/369270

John A. Cadwell - Richland WA

Cadwell Industries, Inc. - Kennewick WA

A61B 504

128731

A method and apparatus for generating an audio accompaniment for digital EEG systems (electroencephalographs) is disclosed. In the past, EEG systems included pen-on-paper EEG recorders to trace a representation of sensed brain wave activity on a strip of paper. This produced varying amounts of auditory noise that corresponded to the amount of brain wave activity which was used by medical technicians monitoring a patient. Digital EEG systems create traces on non-auditory (i. e. , CRT) displays. As a result, the auditory feedback provided by the movement of pens on paper and the associated medical benefits have been lost. The invention remedies this problem by providing a method and apparatus that analyzes EEG signals and mimics the sounds that would have been created by the prior art pen-on-paper EEG recorders if the signals had been applied in analog form to such recorders. The invention includes several different synthesizers that replicate the sounds of pens moving across recorder paper, pens hitting on one another, and the motor drive train of a pen-on-paper EEG recorder. The system constantly analyzes the incoming EEG signals and updates control signals that control the synthesizers in a way that ensures that the sounds produced closely approximate the sounds of an equivalent pen-on-paper EEG system.

5631667, May 20, 1997

Jun 7, 1995

8/479568

John A. Cadwell - Richland WA

Cadwell Industries, Inc. - Kennewick WA

G09G 536

345134

A frequency and amplitude measurement tool for electronic displays is provided. The measurement tool automatically draws a measurement scale (24) on an electronic display screen (12) based upon operator inputs from an input device (18). The operator selects a first point (x. sub. 0,y. sub. 0) by depressing a key (19) on the input device (18), and selects a second point (x. sub. 1,y. sub. 1) by subsequent movement of the input device (18). The measurement tool draws a measurement scale (24) extending between the first and second points. The measurement scale (24) includes horizontal lines and vertical hash lines (54) that subdivide the horizontal distance between the first and second points so that the frequency calculated is an average frequency over the number of cycles represented by the subdivisions. The horizontal lines allow the operator to make amplitude measurements, and the vertical hash lines (54) allow the operator to align the measurement scale (24) with consecutive peaks or valleys of a waveform so that the average frequency of a portion of the waveform can be calculated.