Licensable Technology

Patents available for license

The following patents are available for license. If you are interested please contact us.


Forward Error Correction (FEC) Technology

Various state-of-the-art forward error correction techniques and products, including interleaver technology, hypercodes and ultra-fast viterbi codecs.


Block Decision Feedback Equalizer

Modem for transmitting digital data over HF radio circuits at rates of up to 9600 bps.
http://www.google.com/patents/US5790598


Objective Audio Quality Measurement

Efficient and reliable software for objective assessment of the subjective quality of a processed audio sequence, relative to the original, unprocessed version of the sequence.
http://www.google.com/patents/US7164771


Method and System for Detection of Short Digital Radio Messages

Efficient and reliable detection of short digital radio messages under very noisy channel conditions. Good application: in mobile radio for emergency vehicles.
http://www.google.com/patents/US6693983


Modulation Recognition System

Algorithm for detecting and classifying the modulation scheme of an unknown signal. Applicable to spectrum monitoring for terrestrial and satellite communications, in particular the surveillance of unknown signals and signal intelligence activities.
http://www.google.com/patents/US7428270


Method and Apparatus for Noise Floor Estimate

Algorithm for estimating the noise floor level in presence of signals of unknown nature, and independently of any defined channel assignment. Applicable to spectrum monitoring for terrestrial and satellite communication systems.
http://www.google.com/patents/US7340375


A Method for Calibrating a Wideband Direction Finding System

A procedure to calibrate two wideband sensors for a narrow aperture antenna array in radio signal direction of arrival estimation. Applicable to spectrum monitoring, spectrum analysis, and in any application where the angle of arrival of a signal at a particular location is of interest.
http://www.google.com/patents/US6700537


Direct Transmitter Self Calibration Method

Adaptive technique for estimating the gain, phase and DC offset pre-distortion coefficients required to compensate for transmitter circuit imperfections.
http://www.google.com/patents/US6771709


Type-based Baseband Pre-distorter Function Estimation Technique for Non-linear Circuits

A novel estimation technique for generating a pre-distortion function to compensate for non-linear conversion distortions of non-linear power amplifiers or non-linear circuits.
http://www.google.com/patents/US6885241


Automatic Signal Extraction and Signal Analysis from Time-Frequency Representation

A spectrum monitoring system for isolating and characterizing multiple transmission signals that are transmitted using frequency hopping.
http://www.google.com/patents/US7151790


Multi-Symbol Encapsulated OFDM Transmission

A new multi-carrier system in which one cyclic prefix is used for a frame of multiple OFDM symbols in order to improve bandwidth efficiency, or to achieve increased system robustness to synchronization errors and a lower peak-to-average power ratio.
http://www.google.com/patents/US7606138


Method for Updating Singular Value Decomposition of a Transfer Matrix

Low complexity algorithm applicable to channel modeling in multi-input multi-output (MIMO) wireless communication systems.
http://www.google.com/patents/US7418045


Frequency Hopping Communication System

An adaptive frequency hopping spread-spectrum (FHSS) transmission system that efficiently utilizes available transmission bandwidth, while providing robustness to jamming techniques in wireless communication systems.  
http://www.google.com/patents/US7580444


Iterative Non-Coherent CPM Decoder

A low cost, low complexity, non-coherent iterative CPM receiver for use in frequency hopping systems that has an error rate performance equal to or better than existing non-coherent receivers. 
http://www.google.com/patents/US7636399


Hybrid Domain Block Equalizer

A hybrid domain equalizer for ATSC systems, capable of handling multipath channels with very long delay spread and a very long pre-echo, particularly for DTV receivers in a Single Frequency Network environment.
http://www.google.com/patents/US7912118


Channel Estimation and ICI Cancellation for OFDM

A low-complexity, iterative channel estimation and inter-carrier interference cancellation process for OFDM receivers, and more particularly for mobile OFDM receivers.
http://www.google.com/patents/US7995688


Learning Filters for Enhancing the Quality of Block Coded Still and Video Images

An image compression technique for reducing blocking artefacts in block-wise coding of still and video images, using filters based on machine learning algorithms.
http://www.google.com/patents/US8204128


DABDetect - Receiver for Differentially Modulated Multicarrier Signals

Advanced signal detection technique for mobile DAB/DMB/DAB+ receivers that provides good signal detection even when receivers are moving at high vehicle speed. Attractive to broadcasters as it allows a single DAB Single Frequency Network deployment to meet service requirements for both stationary and moving DAB receivers.
http://www.google.ca/patents/US20090129493


Rotating-Wedges Antenna-Steering Mount

Versatile and compact rotating-wedges antenna-steering mount, composed of two basic building blocks from which all combinations of steering axes and ranges can be realized.
http://www.google.com/patents/US8059048