Patents

Date Issued Country Number Patent Title
Jan 20, 2009
  USA 7,480,416 Implementation of Discrete Wavelet Transform Using Lifting Trays
June 10, 2008  USA
7,385,932 Wideband Frequency Domain Reflectometry to Determine the Nature and Location of Subscriber Line Faults.
June 10, 2008
 USA
7,385,932
Wideband Frequency Domain Reflectometry to Determine the Nature and Location of Subscriber Line Faults Abstract
March 4, 2008
 USA
7,339,937
Wide-area Content-based Routing Architecture Abstract
January, 2008
 USA
7,324,559 B2
Centralized Synchronization for Wireless Networks Abstract
November, 2007
 USA
 7,295,513 B2
 Scheduling of Wireless Packet Data Transmissions Abstract
August, 2007
 USA
 7,260,059 B2
 Evolution of a Telecommunications Network from Ring to Mesh Structure Abstract
June, 2007
 USA
 7,230,916 B2
 Distributed Preconfiguration of Spare Capacity in Closed Paths for Network Restoration Abstract
July, 2006
 USA
7,075,892 B2
Topological Design of Survivable Mesh-Based Transport Networks Abstract
February, 2006 USA 6,996,385 B2 Channel Code Decoding for the CDMA Forward Link
Abstract
November, 2005
 USA
6,970,416 B1
 OFDM System with Simple Terminals Abstract
September, 2005 USA 6,940,893 B1 High-Speed Indoor Wireless Chirp Spread Spectrum Data Link
Abstract
July, 2005 USA 6,914,880 B1 Protection of Routers in a Telecommunications Network
Abstract
May, 2005 USA 6,889,060 An Optical Fiber Based On Wireless Scheme for Wideband Multimedia Access
Abstract
March, 2005 USA 6,873,750 B2 Electro-Optic Modulator with Resonator
Abstract
November, 2004 USA 6,819,662 B1 Method for Protecting a Telecommunications Network
Abstract
November, 2004 USA 6,822,434 B2 Monolithic Transformer Compensated Circuit
Abstract
September, 2004 USA 6,791,473B2 Smart Parking Meter System
Abstract
July, 2004 USA 6,765,708B2 Optical Duobinary Single Sideband Modulator
Abstract
May, 2004 USA 6,741,643B1 Asymmetric Equalization System for Data Transmission
Abstract
May, 2004 USA 6,734,712 Logarithmic Amplifier
Abstract
March, 2004 USA 6,708,146 B1 Voiceband Signal Classifier
Abstract
November, 2003 USA 6,654,379 B1 Integrated Ring-Mesh Network
Abstract
August, 2003 USA 6,606,312 Analog Radio System with Acoustic Transmission Properties
Abstract
July, 2003 USA 6,600,382 Microwave Phase Modulator
Abstract
July, 2003 USA 6,590,451 RF Amplifier With Feedback Based Linearization
Abstract
July, 2003 USA 6,587,257 Non-Linear Subcarrier Predistortion and Upconversion System (Harmonic Amplitude and Phase Prescaler)
Abstract
July, 2003 USA 6,594,273 A Self-configuring Radio Network
Abstract
July, 2003 USA 6,597,660 Method for Real-Time analysis on Packet Networks
Abstract
March, 2003 USA 6,529,709B1 Improved Closed Loop Power Control Scheme for Wireless Communication Systems
Abstract
December, 2002 USA 6,493,334 Spread Spectrum Time-Division Multiple Access Communications Scheme
Abstract
July, 2002 USA 6,421,349 Distributed Preconfiguration of Spare Capacity in Closed Paths for Network Restoration
Abstract
June, 2002 USA 6,404,734 Scalable Network Restoration Device
Abstract
April, 2002 USA 6,377,543 Path Restoration for Networks
Abstract
July, 2001 USA 6,259,836 Optical Frequency Shifter and Transmission System
Abstract
November, 2000 USA 6,140,972 Multiport Antenna
Abstract
February, 2000 USA 6,021,110 OFDM Timing and Frequency Recovery System
Abstract
December, 1999 USA 5,999,300 Hybrid Single Sideband Optical Modulator
Abstract
August, 1999 USA 5,943,457 Generalized Resonant Coupler Filters
Abstract
March, 1999 USA 5,887,022 Peer-Peer Frequency Hopping Spread Spectrum Wireless System
Abstract
March, 1999 USA 5,889,759 OFDM Timing and Frequency Recovery System
Abstract
December, 1998 USA 5,848,139 Telecommunication Traffic Pricing Control System
Abstract
December, 1998 USA 5,850,505 Method for Preconfiguring a Network to Withstand Anticipated Failures
Abstract
December, 1998 USA 5,852,389 Direct QAM Modulator
Abstract
October, 1998 USA 5,825,257 Microwave GMSK Modulator
Abstract
March, 1997 USA 5,612,653 LAN Star Connection Using Negative Impedance for Matching
Abstract
November, 1994 USA 5,361,277 Method and Apparatus for Clock Distribution and for Distributed Clock Synchronization
Abstract
May, 1992 CAN 1,301,261 Method and Apparatus for Clock Distribution and for Distributed Clock Synchronization
Abstract
September, 1991 USA 5,044,723 Tapered Fibre Sensor
Abstract
June, 1991 USA 5,023,869 Method and Apparatus for Maximizing the Transmission Capacity of a Multi-Channel Bi-directional Comm. Link
Abstract
October, 1990 USA 4,967,411 Method and Apparatus for Frame-Bit Modulation and Demodulation of DS3 Signal
Abstract
September, 1990 USA 4,956,835 Method and Apparatus for Self-Restoring and Self-Provisioning Communication Networks
Abstract
May, 1990 USA 4,926,446 Method and Apparatus for Precision Time Distribution in Telecommunications Networks
Abstract