Eric Jeffrey Christensen

US Patent:

6366946, Apr 2, 2002

Filed:

Dec 16, 1998

Appl. No.:

09/213016

Inventors:

Eric R. Christensen - Redmond WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 900

US Classification:

709106, 707 8

Abstract:

A technique for processing a critical code section which cannot be executed concurrently by more than one executable unit (e. g. , a thread, a process, a fiber, etc. ). A first executable unit prepares a packet containing a âwork request,â which describes work to be performed by the critical section. If the critical section is not in use by a second executable unit, then the first executable unit enters the critical section and performs the work described in the packet. If the critical section is in use by a second executable unit, then the second executable unit performs the work described in the packet on behalf of the first executable unit, thereby alleviating the necessity for the first executable unit to enter the critical section. In addition to the work request, the packet may also contain: a status indicating whether the work request has been performed, an event to be signaled upon completion of the work request, and/or a list pointer that may be used to link packets together in a linked list.

US Patent:

6408313, Jun 18, 2002

Filed:

Dec 16, 1998

Appl. No.:

09/212173

Inventors:

David G. Campbell - Redmond WA
Eric R. Christensen - Redmond WA

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 1730

US Classification:

707205, 711118, 711170

Abstract:

A dynamic cache management mechanism determines the amount of memory available from a system on which a memory intensive application is running and dynamically manages the amount of cache for which real memory is associated or committed by the system. A background thread periodically queries the operating system to determine how much memory is available for use by applications. If the amount of memory, as identified in a free list is above a predetermined threshold, the application requests more memory for its use. If below the predetermined threshold, the application gives memory back to the operating system. The threshold used by the application to expand and shrink the memory it uses based upon system demand for memory.

US Patent:

7765361, Jul 27, 2010

Filed:

Nov 21, 2006

Appl. No.:

11/562053

Inventors:

Robin Dhananjay Dhamankar - Redmond WA, US
Vishal Kathuria - Woodinville WA, US
Sethu Kalavakur - Redmond WA, US
Gayathri Venkataraman - Redmond WA, US
Avraham Levy - Seattle WA, US
Hanumantha Rao Kodavalla - Sammamish WA, US
Chunjia Li - Issaquah WA, US
Eric Ray Christensen - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 12/16

US Classification:

711135, 711113

Abstract:

To ensure that logs representative of data changes are durably written, localized storage media cache is flushed to force a write to stable storage. Log sequence number tracking is leveraged to determine if log data in a localized storage media cache is likely to have not been written to durable storage. When this condition is likely, a FLUSH_CACHE command is issued to a storage media controller to force a durable write. This allows recovery of data changes to a transactional system even when its associated storage media does not provide write-ordering guarantees. Moreover, flushing of the storage media cache can be accomplished at a frequency that provides an upper bound on a maximum time between a transaction commit and data being made durable.

US Patent:

20060133427, Jun 22, 2006

Filed:

Dec 3, 2004

Appl. No.:

11/003847

Inventors:

Kenneth Wolf - Seattle WA, US
Michael Vernal - Seattle WA, US
Christopher Kaler - Sammamish WA, US
Elliot Waingold - Seattle WA, US
Eric Christensen - Seattle WA, US
Jeffrey Schlimmer - Redmond WA, US
Martin Gudgin - Sale, GB
Siddhartha Puri - Sammamish WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04J 3/07

US Classification:

370506000

Abstract:

A mechanism for sending structured data using a corresponding byte stream. Upon accessing structured data such as a Simple Object Access Protocol (SOAP) envelope, a byte stream is generated. The byte stream includes bytes that represent the structured data, as well as a collection of bytes that represents properties about the byte stream such as, for example, a mode of communication. The byte stream may then be passed to a communication module (e.g., a TCP or Named Pipes module) capable of receiving and transmitting the byte stream.

US Patent:

20210093943, Apr 1, 2021

Filed:

Sep 30, 2020

Appl. No.:

17/039652

Inventors:

- Salt Lake City UT, US
Eric Christensen - Salt Lake City UT, US

Assignee:

Voile Manufacturing - Salt Lake City UT

International Classification:

A63C 10/08
A63C 10/14

Abstract:

Splitboard binding systems including a binding that may be attached to either a left or right gliding board in a ski mode or to both gliding boards in a snowboard mode. The binding includes left and right bottom rails attached to the bottom surface of a base plate, which define channels for slidable attachment to “pucks” disposed on the gliding board in snowboard mode. Each rail has a circular bore at a forward end for attachment to a counterpart pivot pin on a ski mode toe bracket in a ski mode by a sideways movement. A securing lever is disposed on an upper surface of the toe bracket. When the securing lever is rotated into a securing position, an end of the securing lever prevents removal of the pivot pin from the rail bore. Rotating the securing lever to a removal position allows the binding to be removed.

US Patent:

20150116505, Apr 30, 2015

Filed:

Jan 5, 2015

Appl. No.:

14/589565

Inventors:

- Highland UT, US
Kyle K. Johnson - Eagle Mountain UT, US
Eric Christensen - Draper UT, US

International Classification:

G01S 3/786
H04N 5/232

US Classification:

348169

Abstract:

A system for tracking a cinematography target comprises an emitter configured to attach to a target and to provide a tracking indicator. The system also comprises a tracker configured to receive tracking data from a separate tracking data reception device and based upon the received tracking data to actuate one or more motors that cause an attached cinematography device to point towards the tracking indicator. Further, the tracking data reception device can be configured to generate information relating to the location of the tracking indicator. In particular, the tracking data reception device can comprise one or more sensor modules that are configured to identify a location of the tracking indicator relative to the tracking data reception device. The system can also comprise a user interface device configured to receive commands from a user and communicate the commands to the tracker.

US Patent:

20150100268, Apr 9, 2015

Filed:

Oct 2, 2014

Appl. No.:

14/504634

Inventors:

- Highland UT, US
Kyle K. Johnson - Eagle Mountain UT, US
Eric Christensen - Draper UT, US
David Long - Provo UT, US
Vikas Asthana - Provo UT, US

International Classification:

G01S 17/66
H04N 5/232

US Classification:

702150, 2503381

Abstract:

A system for tracking a cinematography target comprises an emitter configured to attach to a target and to emit a tracking signal that is directionally identifiable by a tracker. The emitter comprising an output module configured to emit the tracking signal. The tracking signal comprises a non-continuous electromagnetic signal according to a specified pattern, which specified pattern is selectable from a collection of distinct patterns.