Issued Patents All Time
Showing 25 most recent of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9736600 | Devices and methods for collecting acoustic data | Frederick Charles Neumeyer, David Matthew Landry, Samir Ibrahim, John Michael Page Knox | 2017-08-15 |
| 8611570 | Data storage system, hearing aid, and method of selectively applying sound filters | Frederick Charles Neumeyer, David Matthew Landry, Samir Ibarhim, John Michael Page Knox, Andrew Lawrence Eisenberg | 2013-12-17 |
| 8369549 | Hearing aid system adapted to selectively amplify audio signals | David Matthew Landry | 2013-02-05 |
| 7024357 | Tone detector with noise detection and dynamic thresholding for robust performance | — | 2006-04-04 |
| 6768776 | Transcoder-codec circuit arrangement and method that supports voice-switched hands-free radio operation | Jacqueline Mullins, Daren Allee | 2004-07-27 |
| 6711540 | Tone detector with noise detection and dynamic thresholding for robust performance | — | 2004-03-23 |
| 6665350 | Method and system for improved analog signal detection | — | 2003-12-16 |
| 6587559 | Cross-frame dual tone multifrequency detector | — | 2003-07-01 |
| 6574334 | Efficient dynamic energy thresholding in multiple-tone multiple frequency detectors | — | 2003-06-03 |
| 6370555 | Method and system for improved detection of analog signals | — | 2002-04-09 |
| 6269160 | Communications device including an improved CPE alerting signal (CAS) detection system | — | 2001-07-31 |
| 6230255 | Communications processor for voice band telecommunications | Safdar M. Asghar | 2001-05-08 |
| 6046977 | Method and apparatus for detecting signal misalignment | — | 2000-04-04 |
| 6047254 | System and method for determining a first formant analysis filter and prefiltering a speech signal for improved pitch estimation | Mark A. Ireton | 2000-04-04 |
| 6026357 | First formant location determination and removal from speech correlation information for pitch detection | Mark A. Ireton | 2000-02-15 |
| 5946353 | Method and apparatus for external intermediate data processing | Jacqueline Mullins, Joseph W. Peterson, Alan F. Hendrickson | 1999-08-31 |
| 5937374 | System and method for improved pitch estimation which performs first formant energy removal for a frame using coefficients from a prior frame | Mark A. Ireton | 1999-08-10 |
| 5930489 | Microprocessor configured to detect memory operations having data addresses indicative of a boundary between instructions sets | Thang M. Tran | 1999-07-27 |
| 5930490 | Microprocessor configured to switch instruction sets upon detection of a plurality of consecutive instructions | — | 1999-07-27 |
| 5887059 | System and method for performing echo cancellation in a communications network employing a mixed mode LMS adaptive balance filter | Zheng Xie | 1999-03-23 |
| 5864795 | System and method for error correction in a correlation-based pitch estimator | — | 1999-01-26 |
| 5809133 | DTMF detector system and method which performs frequency domain energy calculations with improved performance | Zheng Xie | 1998-09-15 |
| 5794068 | CPU with DSP having function preprocessor that converts instruction sequences intended to perform DSP function into DSP function identifier | Saf Asghar, Mark A. Ireton | 1998-08-11 |
| 5790824 | Central processing unit including a DSP function preprocessor which scans instruction sequences for DSP functions | Saf Asghar, Mark A. Ireton | 1998-08-04 |
| 5784640 | CPU with DSP function preprocessor having look-up table for translating instruction sequences intended to perform DSP function into DSP macros | Saf Asghar, Mark A. Ireton | 1998-07-21 |