Thomas A Hengeveld

6785511, Aug 31, 2004

Oct 25, 2000

09/696930

Thomas A. Hengeveld - Hollis NH
Robert A. Davis - Wayland MA
David A. Brownhill - Westford MA
Timothy J. Allen - Mount Vernon NH

Tyco Electronics Corporation - Middletown PA

H04B 714

455 16, 455450, 455464

A wireless communications system has a plurality of base stations, a plurality of mobile vehicular repeater units, and a plurality of portable units. In a typical context, each mobile vehicular repeater unit is associated with at least one portable unit, and both may be associated with a single user. The object is for the user(s) to be able to access the wireless network for any geographic location. In cases where a geographic area is shadowed from a base station and communication directly between the portable unit and the base station is not possible, it is beneficial to use the mobile vehicular repeater unit in accordance with an extended coverage mode of operation, to relay communications between the portable unit and the base station. A mobile vehicular repeater unit constructed according to the present invention enters the extended coverage mode of operation in response to receipt of an access request, transmitted by a first of the plurality of portable units. Responsive to that request, a mobile vehicular repeater unit transmits to the portable unit a signal representative of an identification of the upper and lower frequency channel portions.

7599496, Oct 6, 2009

Aug 27, 2002

10/228747

Thomas Andrew Hengeveld - Hollis NH, US
Dennis Michael Martinez - Westford MA, US

Pine Valley Investments, Inc. - Las Vegas NV

H04L 9/00

380278

A method for distributing encryption keys for use in communication systems such as trunked radio communication systems. Group traffic keys are encrypted at a key administrator and passed to a distribution facility for storage and distribution. The distribution facility passes the encrypted group traffic key to communication devices where the group traffic keys are decrypted and used to encrypt/decrypt traffic.

7917748, Mar 29, 2011

Oct 25, 2002

10/280354

Thomas Andrew Hengeveld - Hollis NH, US
Dennis Michael Martinez - Westford MA, US

Pine Valley Investments, Inc. - Las Vegas NV

H04L 29/06

713163, 713150, 709245, 380255, 380277, 380278

A method for distributing group secrets (e. g. , group ID and password combinations) for use in communication systems such as trunked radio communication systems. A user group record containing one or more group secrets is encrypted at an administrator using a user secret (e. g. , a user ID and password combination) known to the administrator and to a communication device. The encrypted user group record is then distributed to the communication device where it is decrypted using the user secret.

7929484, Apr 19, 2011

Feb 16, 2005

11/058891

Gregory Newell Henderson - Sudbury MA, US
Thomas Andrew Hengeveld - Hollis NH, US
Daniel Wayne Ericson - Hollis NH, US
Dennis Michael Martinez - Westford MA, US
Reid Henry Johnson - Manchester NH, US

Pine Valley Investments, Inc. - Las Vegas NV

H04W 4/00

370328, 370338

A wireless communication network is provided that includes a plurality of communication cells each defined by at least one communication coverage area and a plurality of access points each corresponding to a different one of the plurality of communication cells. Each access point is configured to communicate on a first frequency with at least one of (i) a subscriber in the at least one communication coverage area in a first communication cell and (ii) a subscriber in a second communication cell. Each access point is further configured to communicate on a second frequency with an access point in a third communication cell.

8169983, May 1, 2012

Aug 7, 2006

11/501132

William Oscar Janky - Goode VA, US
Thomas Andrew Hengeveld - Hollis NH, US
Dennis Michael Martinez - Westford MA, US

Pine Valley Investments, Inc. - Las Vegas NV

H04W 4/00

370338, 455466, 455519, 455521, 4555521

A transcoder architecture and method for transcoding in land mobile radio (LMR) systems are provided. The LMR system includes a first communication site configured to communicate using a first LMR communication protocol and a second communication site configured to communicate using a second LMR communication protocol. The LMR system further includes a transcoder configured to receive LMR content from the first communication site communicated using the first LMR communication protocol and digitally convert the LMR content to the second LMR communication protocol to be communicated to the second communication site.

8274933, Sep 25, 2012

Feb 8, 2011

13/022703

Gregory Newell Henderson - Sudbury MA, US
Thomas Andrew Hengeveld - Hollis NH, US
Daniel Wayne Ericson - Hollis NH, US
Dennis Michael Martinez - Westford MA, US
Reid Henry Johnson - Manchester NH, US

Pine Valley Investments, Inc. - Las Vegas NV

H04W 4/00

370328

A wireless communication network is provided that includes a plurality of communication cells each defined by at least one communication coverage area and a plurality of access points each corresponding to a different one of the plurality of communication cells. Each access point is configured to communicate on a first frequency with at least one of (i) a subscriber in the at least one communication coverage area in a first communication cell and (ii) a subscriber in a second communication cell. Each access point is further configured to communicate on a second frequency with an access point in a third communication cell.

8422447, Apr 16, 2013

Aug 27, 2010

12/870176

Peter Monnes - Chelmsford MA, US
Thomas Andrew Hengeveld - Hollis NH, US
Micael Martell - Kungsbacka, SE

Harris Corporation - Melbourne FL

H04W 4/00

370329, 455450

Systems () and methods for providing voice communications over a cellular network (). A call setup message is communicated from a first communication device (FCD) to a second communication device (SCD) on a first communications channel (FCC) in a cellular network (CN) at a first data transfer rate (FDTR). In response to the call setup message, a stimulator packet is communicated to the CN on FCC at FDTR. The stimulator packet includes data of an amount that equals or exceeds a threshold value. In response to the stimulator packet, FCD () and CN transition from a first channel mode to a second different channel mode. In the second channel mode, data is transmitted on a second communications channel (SCC) in CN at a second data transfer rate (SDTR) different than FDTR.

8428609, Apr 23, 2013

Apr 28, 2009

12/431530

Peter Monnes - Chelmsford MA, US
Thomas A. Hengeveld - Hollis NH, US

Pine Valley Investments, Inc. - Las Vegas NV

H04W 72/00
H04L 12/28

455453, 370389

A system and method for managing communication in a cellular communication system are provided. The method includes measuring communication conditions within at least one communication cell of the communication system and estimating congestion within the at least one communication cell of the communication system based on the measured communication conditions. The method further includes adjusting communication links within the at least one communication cell based on the estimated congestion.