John J Erickson

US Patent:

20110314338, Dec 22, 2011

Filed:

Jun 18, 2010

Appl. No.:

12/819069

Inventors:

John Erickson - Redmond WA, US
Madan Musuvathi - Redmond WA, US

Assignee:

MICROSOFT CORPORATION - Redmond WA

International Classification:

G06F 11/26
G06F 12/00

US Classification:

714 37, 714E11159, 714 42, 711147, 711E12001

Abstract:

Described are techniques for detecting data collisions between a first portion and a second portion of an application executing on a computer, the first portion and the second portions executing concurrently with respect to each other. While the first portion and second portion are executing, before the first portion accesses a memory location shared by the first portion and the second portion, a value stored in the memory location is captured and the first portion is delayed. While the second portion continues to execute the first portion is delayed. After a period of the first portion having been paused or slowed, the current content of the memory location is compared with the captured content to determine if there is a data collision. The first and second portions may be threads, and the capturing, delaying, and determining may be performed by code inserted to the application after it has been compiled.

US Patent:

20120204062, Aug 9, 2012

Filed:

Feb 9, 2011

Appl. No.:

13/023547

Inventors:

John Erickson - Redmond WA, US
Madan Musuvathi - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 11/07

US Classification:

714 35, 714E11029

Abstract:

The claimed subject matter provides a method for detecting a data race. The method includes inserting a plurality of breakpoints into a corresponding plurality of program locations. Each of the program locations accesses a plurality of memory locations. Each of the program locations is selected randomly. The method also includes detecting one or more data races for the memory locations in response to one or more of the breakpoints firing. Additionally, the method includes generating a report describing the one or more data races.

US Patent:

62762095, Aug 21, 2001

Filed:

Dec 17, 1999

Appl. No.:

9/466750

Inventors:

Mark E. Schafer - Ambler PA
Robert J. Ross - Madison WI
John R. Erickson - Madison WI
Rodney C. DeGroot - Madison WI

Assignee:

Perceptron, Inc. - Plymouth MI
The United States of America as represented by the Secretary of Agriculture - Washington DC

International Classification:

G01N 2908
G01N 2918

US Classification:

73597

Abstract:

A system and method of detecting anomalies and/or grain variations in a wooden member. At least one ultrasonic transmitter applies an ultrasound waveform into a surface of a wooden member so as to generate a multiplicity of ultrasonic waves including, e. g. , longitudinal and shear ultrasonic waves. These ultrasonic waves are measured after propagation through the wooden member by at least one ultrasonic receiver disposed on the same surface of the wooden member. At least one ultrasonic receiver may also be placed opposite the ultrasonic transmitter so as to detect radial transmission of the longitudinal ultrasonic wave at a point across from the wooden member. The received ultrasonic waves are processed to determine anomalies and/or grain variations in the wooden member at positions of the wooden member between the ultrasonic transmitter and the ultrasonic receiver(s). The ultrasonic transmitters and receivers may be placed in rollers to facilitate high-speed, in-line processing of wooden members.

US Patent:

45823413, Apr 15, 1986

Filed:

Mar 15, 1985

Appl. No.:

6/712219

Inventors:

John S. Erickson - Everett WA

International Classification:

A63C 1122

US Classification:

280824

Abstract:

Ski pole modifying apparatus includes a seat contacting member and a ski/boot contacting member. The seat contacting member includes a pole encircling portion with an elongated collar section. An arm portion extends from the collar section and includes a transverse section extending the full length of the arm portion disposed in a plane substantially perpendicular to an axis of the collar section. A radial section extends from the periphery of the collar section along substantially the full height thereof and tapers downwardly toward the free end of the transverse section. The ski/boot contacting member includes a platform portion with a central opening surrounded by a cylindrical section and an odd number of substantially equal length peripheral edges with a minimum of five. A generally circular opening extends through the platform portion adjacent a midpoint of each peripheral edge thereof. Each circular opening includes a channel communicating with the adjacent peripheral edge with the channel having a width less than the diameter of the circular opening.

US Patent:

45896810, May 20, 1986

Filed:

Nov 8, 1983

Appl. No.:

6/549774

Inventors:

John S. Erickson - Everett WA

International Classification:

A63C 1122

US Classification:

280819

Abstract:

Ski pole modifying apparatus including a support portion, a hanger portion, a pivoting portion and a stabilizer portion; the support portion including an elongated main section, the main section being capable of mounting on a ski pole intermediate the ends thereof; the hanger portion extending from the support portion, the hanger portion including an arm member with a free end, the arm member being capable of extending generally perpendicularly from the main section; the pivoting portion including mechanism for changing the position of the hanger portion about a transverse axis through the ski pole from a position in which the free end of the arm member of the hanger portion is remote from the ski pole to a position in which the free end is disposed adjacent to the ski pole; the stabilizer portion retaining the position of the hanger portion with respect to the ski pole; whereby when the modifying apparatus is mounted on a ski pole, the hanger portion can be pivoted to a position so it can lay on a ski lift seat to enable a skier to rest his feet on ski pole baskets.

US Patent:

54297460, Jul 4, 1995

Filed:

Feb 22, 1994

Appl. No.:

8/200126

Inventors:

Paula J. Shadle - Gulph Mills PA
John C. Erickson - Conshohocken PA
Robert G. Scott - Collingswood NJ
Thomas M. Smith - Drexel Hill PA

Assignee:

Smith Kline Beecham Corporation - Philadelphia PA

International Classification:

B01D 1508

US Classification:

210635

Abstract:

This invention relates to the application of hydrophobic interaction chromatography combination chromatography to the purification of antibody molecule proteins.