Mark A Hamilton

US Patent:

6496499, Dec 17, 2002

Filed:

Dec 3, 1999

Appl. No.:

09/454137

Inventors:

Mark Alan Hamilton - Superior CO
Keith Richard Amann - Westminster CO

Assignee:

SpectraLink Corporation - Boulder CO

International Classification:

H04B 7212

US Classification:

370348, 455561

Abstract:

A wireless network having a radio frequency access point and a plurality of isochronous devices wirelessly connected to the radio frequency access point. Each of the isochronous devices receives information from the radio frequency access point including isochronous device identification data and transmission timing data. A microprocessor is connected to the radio frequency transceiver and creates a transmission time-ordered list of the plurality of isochronous devices from the isochronous device identification data and the transmission timing data. A timer provides a timed reference for each isochronous device to transmit to the radio frequency access point according to the transmission time-ordered list. The time-ordered list prevents collision of information being transmitted to the radio frequency access point.

US Patent:

7769054, Aug 3, 2010

Filed:

Nov 1, 2006

Appl. No.:

11/591646

Inventors:

Mark A. Hamilton - Superior CO, US

Assignee:

Polycom, Inc. - Pleasanton CA

International Classification:

H04J 3/06

US Classification:

370503, 370518

Abstract:

A wireless LAN can be used to support audio communication sessions between wireless communication devices and wired communication devices both configured to operate according to the Internet Protocol. Both the wired and wireless communication devices generate and transmit frames of voice information over the LAN to each other and in the process of generating these frames they place a timestamp in each frame that is used by a receiving communications device to determine when the frame should be played in relationship to all of the other frames of voice information it receives. At times these communication devices can place incorrect timestamp values in the frames of audio information which can affect the quality of the communication experience for a user. I propose to correct any incorrect timestamp values by first recognizing that a timestamp value is incorrect and then rounding the value to the nearest frame boundary.

US Patent:

8223715, Jul 17, 2012

Filed:

Aug 11, 2006

Appl. No.:

11/503002

Inventors:

Mark A. Hamilton - Superior CO, US
Keith R. Amann - Westminster CO, US

Assignee:

Polycom, Inc. - Pleasanton CA

International Classification:

H04W 4/00

US Classification:

370331, 370329, 370330, 370332

Abstract:

A wireless local area communications network that includes one or more access points each of which may have associated wireless communications devices in communication with it over a plurality of channels, some of which may be shared with a radar signal. The wireless communications devices are able to roam from one access point to another access point, in the presence of the channels shared with radar, in a seamless manner or in a manner in which the current communications session is not interrupted or delayed due to the requirement that any device in the network not transmit on those channels being shared with radar signals until the device can confirm that the channel is radar free. Furthermore, it is possible to guarantee that the communications session will not be disrupted during such roaming by configuring the wireless communications device to scan the wireless medium for only a minimum period of time necessary to detect a regularly occurring signal.

US Patent:

20080225756, Sep 18, 2008

Filed:

Mar 13, 2007

Appl. No.:

11/717401

Inventors:

Keith R. Amann - Westminster CO, US
Mark A. Hamilton - Superior CO, US
Oliver J. Krahn - Superior CO, US

International Classification:

H04Q 11/00

US Classification:

370260

Abstract:

A wireless LAN is comprised of a number of wired infrastructure devices, including at least one access point able to support a number of wireless communication devices configured to operate in the U-APSD mode. The wireless communications devices periodically contending for the wireless medium to transmit trigger messages to the access point and the access point responding by transmitting at least one frame of information. The wireless communications devices operate to synchronize the transmission of their trigger messages such that the possibility that the messages collide with one another is minimized.

US Patent:

20230106424, Apr 6, 2023

Filed:

Dec 8, 2022

Appl. No.:

18/077437

Inventors:

- Suwanee GA, US
Mark HAMILTON - Superior CO, US

International Classification:

H04W 8/24
H04L 1/16
H04L 5/00
H04W 76/10
H04L 69/22
H04W 24/10
H04B 17/336
H04L 1/00
H04W 84/12

Abstract:

Aspects of the present disclosure are drawn to a client device for use with an access point device. The client device includes: a memory; and a processor configured to execute instructions stored on the memory to cause the client device to: obtain a value associated with a capability of the client device, create a response including a header and a payload, the header including a reserved field including a bit reporting that the payload of the response includes the value associated with the capability, and transmit the response to the APD.

US Patent:

20230084715, Mar 16, 2023

Filed:

Sep 2, 2022

Appl. No.:

17/902281

Inventors:

- Suwanee GA, US
Mark HAMILTON - Superior CO, US

International Classification:

H04W 12/69
H04W 12/041
H04W 12/02

Abstract:

To protect and ensure security and/or privacy, an access point and a wireless network device can exchange capabilities information. The capabilities information can indicate that each of the access point and the wireless network device support generation of an association identifier association media access control (A-AMAC) identifier. The A-AMAC identifier is based on an association identifier (AID) (that is assigned by the access point and associated with the wireless network device) and any other information exchanged between the access point and the wireless network device. The A-AMAC identifier once generated can be stored by the access point. The A-AMAC identifier is then used for post association communications between the access point and the wireless network device. As the A-AMAC identifier is a unique identifier for the association of the access point and the wireless network device, tracking of the wireless network device is thwarted or inhibited.

US Patent:

20210385046, Dec 9, 2021

Filed:

Jun 8, 2021

Appl. No.:

17/341903

Inventors:

- Suwanee GA, US
Mark HAMILTON - Superior CO, US

International Classification:

H04L 5/00
H04L 29/06
H04W 76/10
H04B 17/336

Abstract:

Aspects of the present disclosure are drawn to a client device for use with an access point device. The client device includes: a memory; and a processor configured to execute instructions stored on the memory to cause the client device to: obtain a value associated with a capability of the client device, create a response including a header and a payload, the header including a reserved field including a bit reporting that the payload of the response includes the value associated with the capability, and transmit the response to the APD.

US Patent:

20210385644, Dec 9, 2021

Filed:

Jun 8, 2021

Appl. No.:

17/342005

Inventors:

- Suwanee GA, US
Mark HAMILTON - Superior CO, US

International Classification:

H04W 8/24
H04W 24/10
H04L 1/00
H04L 1/16

Abstract:

Aspects of the present disclosure are drawn to a client device for use with an access point device. The client device includes: a memory; and a processor configured to execute instructions stored on the memory to cause the client device to: obtain a plurality of values associated with a respective plurality of capabilities of said client device, create a response including a header and a payload, the header including a reserved field including a plurality of bits, each of which reporting that the payload of the response includes a respective one of the plurality of values associated with the respective plurality of capabilities, and transmit the response to the access point device.