Anthony D Bell

US Patent:

20120044955, Feb 23, 2012

Filed:

Aug 17, 2010

Appl. No.:

12/857581

Inventors:

Subramanian Chandrasekaran - Redmond WA, US
Anthony Bryan Bell - Carnation WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

H04J 3/16

US Classification:

370468

Abstract:

A client in a media session periodically transmits a “keepalive” message that indicates that a new amount of bandwidth is requested for the in-progress media session. A bandwidth policy service receives the keepalive message and determines whether the new amount of bandwidth can be allocated to the in-progress media session. If the service determines that the new amount of bandwidth can be allocated to the session, the service transmits a response to the keepalive message that indicates that the new amount of bandwidth has been allocated to the media session. The client receives the response and adjusts the bandwidth utilized by the in-progress session to the new amount of bandwidth.

US Patent:

20120054323, Mar 1, 2012

Filed:

Aug 30, 2010

Appl. No.:

12/870861

Inventors:

Subramanian Chandrasekaran - Redmond WA, US
Anthony Bryan Bell - Carnation WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/16

US Classification:

709223

Abstract:

A session bandwidth limit is specified that defines the maximum amount of bandwidth that can be allocated to a single audio or video session on a network link. Prior to establishing an audio or video session on the network link, the session bandwidth limit is consulted to determine if a requested amount of bandwidth for the session can be allocated. The session may be established if the requested amount of bandwidth does not exceed the session bandwidth limit.

US Patent:

20120059939, Mar 8, 2012

Filed:

Sep 7, 2010

Appl. No.:

12/876268

Inventors:

Subramanian Chandrasekaran - Redmond WA, US
Anthony Bryan Bell - Carnation WA, US
Malarvizhi Chinnusamy - Redmond WA, US
Xianjie Zhang - Sammamish WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 15/16

US Classification:

709227

Abstract:

Call admission control (“CAC”) servers in a pool are fully connected to one another. Session data received at one of the CAC servers in a pool is synchronized to each of the other CAC servers in the pool by way of the connections. Each CAC server in a first pool may also establish a connection with exactly one CAC server in a second pool. Status updates and commit data is synchronized from a CAC server in the first pool to a CAC server in the second pool. The commit data may then be synchronized to each of the CAC servers in the second pool.

US Patent:

20160380789, Dec 29, 2016

Filed:

Jun 25, 2015

Appl. No.:

14/750802

Inventors:

- Redmond WA, US
Tin Qian - Bellevue WA, US
Timothy M. Moore - Bellevue WA, US
Anthony Bell - Carnation WA, US

International Classification:

H04L 25/20
H04L 12/911
H04L 29/12

Abstract:

A media session between an initiating endpoint and a responding endpoint is established. A set of candidate pairs is generated at the endpoint. Each of the candidate pairs comprises a respective network address available to the initiating endpoint and a respective network address available to the responding endpoint. The set of candidate pairs is generated by exchanging network addresses between the initiating endpoint and the responding endpoint. The media session is established using a candidate pair of the set determined to be valid by the endpoints performing connectivity checks for at least one candidate pair of the set to determine whether or not the candidate pair is valid. The set includes a multiplexed relayed candidate pair, which comprises a multiplexed relayed candidate. The multiplexed relayed candidate comprises a unique session identifier to allow multiple media streams to be relayed via the same port of the media relay server simultaneously.

US Patent:

20160380966, Dec 29, 2016

Filed:

Jun 25, 2015

Appl. No.:

14/750787

Inventors:

- Redmond WA, US
Tin Qian - Bellevue WA, US
Timothy M. Moore - Bellevue WA, US
Anthony Bell - Carnation WA, US

International Classification:

H04L 29/12
H04L 29/06

Abstract:

An input of a media relay server is configured to receive multiple media streams from a network via the same port simultaneously, each stream being directed to the server network address and indicating a port identifier of the port and a separate target session identifier. A relay module of the server is configured to, for each stream: determine an endpoint network address associated in a database with the target session identifier indicated by that stream, and transmit that stream to that endpoint network address. In this manner, multiple media streams are relayed to different network endpoints via the same port simultaneously.