Charles B Patton

Author:

Charles M. Patton

ISBN #:

0534939368

Author:

Charles M. Patton

ISBN #:

0534944523

Author:

Charles M. Patton

ISBN #:

0534947166

Author:

Charles I. Patton

ISBN #:

0788140698

US Patent:

43951163, Jul 26, 1983

Filed:

Jan 22, 1981

Appl. No.:

6/227215

Inventors:

Charles R. Patton - Long Beach CA
Douglas E. Lippincott - Midway City CA

International Classification:

G03B 2732
G03B 4100

US Classification:

355 32

Abstract:

An apparatus and automated process to improve the accuracy and reduce the time, cost, and effort necessary to prepare reproduction artwork for charts is disclosed. A numerically or computer controlled imaging system is used to expose photographic film or emulsion with specially prepared halftone pattern symbols. This allows a computer to be used to select both the symbol and location, instead of slow and costly manual methods. Greatest benefits accrue when the final chart is to be in color. One sheet of film per primary color is exposed using a few basic symbols, which are then combined to yield a wide range of color in the symbols of the final chart. Typically, the final product of this process is one or more sheets of monochromatic film used as masters for a color printing or color key process. Further, a method is described to avoid erroneous density (and resultant color) changes where halftone symbols overlap, as well as various other methods to improve legibility and produceability of the charts.

US Patent:

47455241, May 17, 1988

Filed:

Apr 24, 1987

Appl. No.:

7/042267

Inventors:

Charles R. Patton - Long Beach CA

Assignee:

Western Digital Corporation - Irvine CA

International Classification:

H05K 0712

US Classification:

361399

Abstract:

A mounting system for mounting an expansion card inside a computer chassis includes a mounting bracket having a combination board mounting clip and chassis mounting tab formed as an integral unit in which the bracket releasebly fastens to a corner of the expansion card. The expansion card has a bottom edge connector for plugging into an expansion card socket at the base of the computer chassis inside the expansion slot. The computer chassis also has a removeable cover plate on a panel of the chassis for shielding the expansion slot. The board mounting clip releasably fastens to the expansion card by engaging the opposite faces of the board in a continuous frictional means of attachment without the use of external fastening means. The chassis mounting tab is arranged so that when the expansion card is plugged into the expansion card socket, a portion of the chassis mounting tab automatically registers with the fastener for the cover plate so that the fastener is usable to fasten the tab to a portion of the chassis adjacent the cover plate, with the cover plate providing a separate means of shielding the expansion slot, independently of the bracket on the expansion card.

US Patent:

49980750, Mar 5, 1991

Filed:

Oct 26, 1989

Appl. No.:

7/427197

Inventors:

Charles R. Patton - Long Beach CA
Timothy G. O'Shaughnessy - Norco CA

Assignee:

Western Digital Corporation - Irvine CA

International Classification:

H03L 700

US Classification:

331 2

Abstract:

A method for controlling a programmable source of a plurality of string of clock signals, a program is stored with a plurality of different indications of desired frequencies, each indication corresponding to one of the strings of clock signals. The frequency of each of a plurality of oscillator is controlled by the memory content of a separate memory for each oscillator. The content of each memory is adjusted in accordance with the actual frequency of each string, the frequency indicated by the corresponding indication of a desired frequency and a reference.