Bruce C Levens

US Patent:

6396851, May 28, 2002

Filed:

Mar 9, 2001

Appl. No.:

09/803675

Inventors:

Bruce Levens - Natick MA
Paul R. Kerr - Natick MA
William S. Hoge - Boston MA
Daniel F. Daly - Holbrook MA

Assignee:

NMS Communications Corporation - Framingham MA

International Classification:

H04J 312

US Classification:

370526, 370352

Abstract:

A method of facilitating telephony communications over a packet-switched network includes detecting signaling tones in an audio stream and blocking them from the stream in response to the detecting. After the blocking, the audio stream is sent over an undependable channel in the packet-switched network. The detected signaling tones can be sent over a dependable channel instead of the undependable audio channel.

US Patent:

7058026, Jun 6, 2006

Filed:

Oct 6, 2000

Appl. No.:

09/684091

Inventors:

Cristian M. Hera - Framingham MA, US
Bruce C. Levens - Wayland MA, US
R. Brough Turner - Newton Corner MA, US

Assignee:

NMS Communications Corporation - Framingham MA

International Classification:

H04L 12/16

US Classification:

370265, 370266

Abstract:

A conferencing system includes an input configured to receive N encoded speech signals from N terminals, and a signal processing arrangement configured to determine L encoded signals, of the N encoded speech signals, each indicative of an amount of sound that is louder than amounts of sound indicated by signals of the N encoded signals other than the L signals, the signal processing arrangement being further configured to produce at least N minus L sets of signals similar to the L signals and to transmit at least a set of the similar signals toward each of the terminals other than the terminals from which the L signals were received.

US Patent:

20020076039, Jun 20, 2002

Filed:

Dec 20, 2000

Appl. No.:

09/742041

Inventors:

Bruce Levens - Wayland MA, US

International Classification:

H04M003/00

US Classification:

379/418000

Abstract:

DTMF tones used to enter a password reflected by an answering machine or voice mail system can be masked using a jamming signal generator. When an answering machine or voice mail system is accessed with a cellular phone, the DTMF tones used for the password can be reflected back over the cellular network, which compromises security. A method and apparatus are disclosed which detects tones on an input line and outputs a jamming signal on the output line to mask the reflected tones.

US Patent:

6226303, May 1, 2001

Filed:

Mar 6, 1998

Appl. No.:

9/036342

Inventors:

Bruce Levens - Natick MA
Paul R. Kerr - Natick MA
William S. Hoge - Boston MA
Daniel F. Daly - Holbrook MA

Assignee:

Natural MicroSystems Corporation - Framingham MA

International Classification:

H04J 312

US Classification:

370526

Abstract:

A method of facilitating telephony communications over a packet-switched network includes detecting signaling tones in an audio stream and blocking them from the stream in response to the detecting. After the blocking, the audio stream is sent over an undependable channel in the packet-switched network. The detected signaling tones can be sent over a dependable channel instead of the undependable audio channel.

US Patent:

55635962, Oct 8, 1996

Filed:

Jun 10, 1994

Appl. No.:

8/258478

Inventors:

Robert E. Snyder - Andover MA
Bruce C. Levens - Natick MA

Assignee:

Steinbrecher Corporation - Burlington MA

International Classification:

H03M 112

US Classification:

341131

Abstract:

An analog signal is converted to a digital signal by two analog-to-digital converters. The first converter digitizes the analog signal to produce a first series of samples of the signal. The second converter digitizes the analog signal after it has been shifted in phase by 180 degrees to produce a second series of samples. A digital adder then subtracts the second series of samples from the first series to produce the digital signal.

US Patent:

20200282261, Sep 10, 2020

Filed:

Mar 7, 2019

Appl. No.:

16/295511

Inventors:

- Framingham MA, US
Mark SYDORENKO - Wellesley MA, US
John GORDON - Lexington MA, US
Bruce C. LEVENS - Wayland MA, US
Ryan K. BURNS - Cambridge MA, US
Jeremy KEMMERER - Holliston MA, US
Juan Carlos Rodero SALES - Boston MA, US
William BERARDI - Grafton MA, US

International Classification:

A63B 24/00
G06F 3/01

Abstract:

A method is provided for detecting at least one fitness related activity is provided. Data is obtained from at least one sensor of a wearable device, wherein the at least one sensor detects the data based on at least one body movement of a user wearing the wearable device. Based on the obtained data, the at least one fitness related activity is detected from a set of fitness related activities, wherein the detection is performed without pre-training by the user for the detecting.