David Michael Barth

US Patent:

6795873, Sep 21, 2004

Filed:

Jun 30, 2000

Appl. No.:

09/607256

Inventors:

David M. Barth - Portland OR
Brian D. Nelson - Tigard OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 300

US Classification:

710 15, 710 5, 710 10, 710 17, 710 18, 710 31, 710 58, 714 5, 714 47, 711219

Abstract:

The present invention provides a method and apparatus for a scheduling driver to implement a protocol using time estimates for use with a device that does not generate interrupts. An application calls the scheduling driver to start an Input/Output (I/O) request to a device. The scheduling driver determines if the device is busy. If the device is not busy, the scheduling driver provides an estimated processing time (EPT) for the I/O request to be completed to the application. In one embodiment, if the device is busy, the scheduling driver calculates an estimated amount of time left (EATL) until the device will be available to the application and provides this EATL to the application. When the device is not busy, the application sleeps for the estimated processing time (EPT) and calls the scheduling driver to obtain the I/O operation results. If the I/O request has been completed, the scheduling driver provides the I/O operation results to the application. However, if the I/O request has not been completed, the scheduling driver calculates an estimated processing time remaining (EPTR) for the I/O request to be completed and provides the EPTR to the application.

US Patent:

6802003, Oct 5, 2004

Filed:

Jun 30, 2000

Appl. No.:

09/608274

Inventors:

Mark T. Gross - Portland OR
David M. Barth - Portland OR
Richard P. Mangold - Forest Grove OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04L 918

US Classification:

713175, 713201

Abstract:

Content is authenticated by generating signature certificates for content that has been successfully watermark screened. When a request is received for importation of content into a secured domain, a search is made in a signature certificates cache for a signature certificate associated with that requested content. If an identified signature certificate authenticates the requested content, the content is imported into the secured domain. If no signature certificate is identified, the content is watermark screened. If the content successfully passes the watermark screening process, a new signature certificate is then added to the signature certificate cache.

US Patent:

6802004, Oct 5, 2004

Filed:

Jun 30, 2000

Appl. No.:

09/608273

Inventors:

Mark T. Gross - Portland OR
David M. Barth - Portland OR
Richard P. Mangold - Forest Grove OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

H04L 900

US Classification:

713176, 713161

Abstract:

A portable device receives content from a computer and a signature certificate. The signature certificate is derived from content after the content successfully passes a watermark screening process. The portable device compares the received signature certificate to the received content. The content is only played in the portable device when the received signature certificate authenticates the received content as passing the watermark screening process.

US Patent:

7716180, May 11, 2010

Filed:

Mar 8, 2006

Appl. No.:

11/371304

Inventors:

Allan H. Vermeulen - Seattle WA, US
Alan B. Atlas - Bellevue WA, US
David M. Barth - Seattle WA, US
John David Cormie - Seattle WA, US
Ami K. Fischman - Seattle WA, US
Eric M. Wagner - Seattle WA, US

Assignee:

Amazon Technologies, Inc. - Reno NV

International Classification:

G06F 17/30

US Classification:

707626, 707812, 707694

Abstract:

A distributed, web-services based storage system. A system may include a web services interface configured to receive, according to a web services protocol, a given client request for access to a given data object, the request including a key value corresponding to the object. The system may also include storage nodes configured to store replicas of the objects, where each replica is accessible via a respective unique locator value, and a keymap instance configured to store a respective keymap entry for each object. For the given object, the respective keymap entry includes the key value and each locator value corresponding to replicas of the object. A coordinator may receive the given client request from the web services interface, responsively access the keymap instance to identify locator values corresponding to the key value and, for a particular locator value, retrieve a corresponding replica from a corresponding storage node.

US Patent:

7739239, Jun 15, 2010

Filed:

Mar 8, 2006

Appl. No.:

11/371263

Inventors:

John David Cormie - Seattle WA, US
Alan B. Atlas - Bellevue WA, US
David M. Barth - Seattle WA, US

Assignee:

Amazon Technologies, Inc. - Reno NV

International Classification:

G06F 7/00
G06F 17/30

US Classification:

707626, 707635, 707637

Abstract:

A distributed storage system including support for distinct storage classes. A system may implement a web services interface, a number of storage nodes and a coordinator. The web services interface may receive, according to a web services protocol, client requests to store data objects. A request for a given object may include an indication of a particular storage class to be associated with the given object, and where each storage class respectively specifies one or more service level agreement (SLA) characteristics. The storage nodes may store replicas of the data objects. The coordinator may receive the client requests to store the data objects from the web services interface, where in response to the given client request, the coordinator may store one or more replicas of the given data object among the storage nodes according to the SLA characteristics specified by the particular storage class.

US Patent:

7904423, Mar 8, 2011

Filed:

Mar 22, 2010

Appl. No.:

12/729158

Inventors:

Allan H. Vermeulen - Seattle WA, US
Alan B. Atlas - Bellevue WA, US
David M. Barth - Seattle WA, US
John David Cormie - Seattle WA, US
Ami K. Fischman - Seattle WA, US
Eric M. Wagner - Seattle WA, US

Assignee:

Amazon Technologies, Inc. - Reno NV

International Classification:

G06F 7/00
G06F 17/00

US Classification:

707626, 707638

Abstract:

A distributed, web-services based storage system. A system may include a web services interface configured to receive, according to a web services protocol, a given client request for access to a given data object, the request including a key value corresponding to the object. The system may also include storage nodes configured to store replicas of the objects, where each replica is accessible via a respective unique locator value, and a keymap instance configured to store a respective keymap entry for each object. For the given object, the respective keymap entry includes the key value and each locator value corresponding to replicas of the object. A coordinator may receive the given client request from the web services interface, responsively access the keymap instance to identify locator values corresponding to the key value and, for a particular locator value, retrieve a corresponding replica from a corresponding storage node.

US Patent:

8185497, May 22, 2012

Filed:

Mar 4, 2011

Appl. No.:

13/040941

Inventors:

Allan H. Vermeulen - Seattle WA, US
Alan B. Atlas - Bellevue WA, US
David M. Barth - Seattle WA, US
John David Cormie - Seattle WA, US
Ami K. Fischman - Seattle WA, US
Eric M. Wagner - Seattle WA, US

Assignee:

Amazon Technologies, Inc. - Reno NV

International Classification:

G06F 7/00
G06F 17/00

US Classification:

707626, 707638

Abstract:

A distributed, web-services based storage system. A system may include a web services interface configured to receive, according to a web services protocol, a given client request for access to a given data object, the request including a key value corresponding to the object. The system may also include storage nodes configured to store replicas of the objects, where each replica is accessible via a respective unique locator value, and a keymap instance configured to store a respective keymap entry for each object. For the given object, the respective keymap entry includes the key value and each locator value corresponding to replicas of the object. A coordinator may receive the given client request from the web services interface, responsively access the keymap instance to identify locator values corresponding to the key value and, for a particular locator value, retrieve a corresponding replica from a corresponding storage node.

US Patent:

20120226712, Sep 6, 2012

Filed:

May 14, 2012

Appl. No.:

13/470531

Inventors:

Allan H. Vermeulen - Seattle WA, US
Alan B. Atlas - Bellevue WA, US
David M. Barth - Seattle WA, US
John David Cormie - Seattle WA, US
Ami K. Fischman - Seattle WA, US
Eric M. Wagner - Seattle WA, US

International Classification:

G06F 17/30

US Classification:

707770, 707E17014

Abstract:

A distributed, web-services based storage system. A system may include a web services interface configured to receive, according to a web services protocol, a given client request for access to a given data object, the request including a key value corresponding to the object. The system may also include storage nodes configured to store replicas of the objects, where each replica is accessible via a respective unique locator value, and a keymap instance configured to store a respective keymap entry for each object. For the given object, the respective keymap entry includes the key value and each locator value corresponding to replicas of the object. A coordinator may receive the given client request from the web services interface, responsively access the keymap instance to identify locator values corresponding to the key value and, for a particular locator value, retrieve a corresponding replica from a corresponding storage node.