Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7233895 | Apparatus and method to compensate for unsynchronized transmission of synchrous data using a sorted list | — | 2007-06-19 |
| 7133411 | Apparatus and method to compensate for unsynchronized transmission of synchrous data by counting low energy samples | — | 2006-11-07 |
| 7072828 | Apparatus and method for improved voice activity detection | — | 2006-07-04 |
| 6956940 | Method and apparatus for automatically directing calls by an invisible agent in a switch | Isaac K. Eyeson, Joel M. Ezell | 2005-10-18 |
| 6792381 | Apparatus and method for locating devices using an acoustic gyroscope | — | 2004-09-14 |
| 6674853 | Integration of remote access and service | Joel M. Ezell, John S. Helton, Douglas A. Spencer, Wayne A. Zakowski | 2004-01-06 |
| 6621792 | Computationally-efficient traffic shaper | — | 2003-09-16 |
| 6574220 | Traffic shaper that accommodates maintenance cells without causing jitter or delay | — | 2003-06-03 |
| 6546007 | Time-slot interchanger that controls both time-slot access and signal-processing features | — | 2003-04-08 |
| 6480511 | Arrangement for synchronization of a stream of synchronous traffic delivered by an asynchronous medium | — | 2002-11-12 |
| 6424651 | Arrangement for performing automatic build out in a communications system that supports multiple constant-bit-rate connections | Norman C. Chan | 2002-07-23 |
| 6212189 | Arrangement for minimizing cell-delay variations in a communications system that supports multiple constant-bit-rate connections | — | 2001-04-03 |
| 6178184 | Arrangement for synchronization of multiple streams of synchronous traffic delivered by an asynchronous medium | — | 2001-01-23 |
| 6026467 | Content-addressable memory implemented with a memory management unit | — | 2000-02-15 |
| 5982783 | Switch distribution via an intermediary switching network | Ernest John Frey, Douglas A. Spencer | 1999-11-09 |
| 5873031 | Implementation of wireless terminal roaming capability via a wired terminal registration feature | Gary L. Griffith, Michael L. Nienaber | 1999-02-16 |
| 5862135 | Simplified interface to a time-division multiplexed communications medium | — | 1999-01-19 |
| 5862131 | Hybrid time-slot and sub-time-slot operation in a time-division multiplexed system | Michael A. Smith, Douglas A. Spencer | 1999-01-19 |
| 5629926 | Customer premise equipment interface | Douglas Anthony Deutsch, Douglas J. Rippe | 1997-05-13 |
| 5623538 | Shared distribution of internal message storage facilities by a plurality of communication terminals | — | 1997-04-22 |
| 5598412 | Switching arrangement for wireless terminals connected to a switch via a digital protocol channel | Gary L. Griffith, Michael L. Nienaber | 1997-01-28 |
| 5577115 | Customer premise equipment interface | Douglas Anthony Deutsch, Douglas J. Rippe | 1996-11-19 |
| RE35050 | Personal computer-as an interface between a telephone station set and a business communication system | David C. Gibbs | 1995-10-03 |
| 5426689 | Cordless headset telephone for use with a business telephone | Gary L. Griffith | 1995-06-20 |
| 5388102 | Arrangement for synchronizing a plurality of base stations | Gary L. Griffith, Michael L. Nienaber | 1995-02-07 |