Technology
The first ever patent for OTDM applied to communications was filed by GCM's President Dr. Vicente Diaz in 2000. GCM's ongoing OTDM and associated research and development work has focused on improvements in channel technologies and the integration of his technology into communications devices and sensors.
Highlights of the GCM R&D team’s achievements include worldwide patents applied to:
- Transmission Channel Estimation.
- Communication systems synchronization
- Crosstalk minimization
- Null MAI CDMA communications
- Doppler effect reduction
- RADAR/SONAR sensitivity improvementPhase independent.
GCM now has a portfolio of granted and pending patents relating to OTDM technology for wireless and wireline communications, RADAR, SONAR, Prospection, Defense and Medical applications. GCM licenses its proprietary technologies to communications device and infrastructure producers worldwide and is determined to protect its portfolio of OTDM and associated technology patents and its strong customer relationships.
OTDM Patent Applications, Patent Numbers and links to public patents
Click for a Summary of published patents in WIPO
| Title | Patent reference |
|---|---|
| METHOD, TRANSMITTER AND RECEIVER FOR SPREAD-SPECTRUM DIGITAL COMMUNICATION BY GOLAY COMPLEMENTARY SEQUENCE MODULATION | (WO 2002/017585) |
| DEVICE AND METHOD FOR TRANSMISSION CHANNEL DISTORTION EQUALISATION IN COMMUNICATION SYSTEMS INVOLVING TIME DOMAIN MULTIPLEXING USING SETS OF COMPLEMENTARY SEQUENCES | (WO 2005/062493) |
| DEVICE AND METHOD FOR THE SYNCHRONISATION OF A DATA COMMUNICATION SYSTEM USING COMPLEMENTARY SEQUENCES | (WO 2005/062520) |
| DEVICE AND METHOD FOR IMPROVING SIGNAL-TO-NOISE RATIO USING COMPLEMENTARY SEQUENCES | (WO 2005/104474) |
| DEVICE AND METHOD FOR OPTIMAL ESTIMATION OF THE TRANSMISSION SPECTRUM WITH THE SIMULTANEOUS MODULATION OF COMPLEMENTARY SEQUENCES | (WO 2005/107200) |
| DEVICE AND METHOD FOR THE OPTIMAL ESTIMATION OF DISTORTION OF A TRANSMISSION MEDIUM, COMPRISING THE SEQUENTIAL EMISSION OF PAIRS OF QUADRATURE COMPLEMENTARY SEQUENCES | (WO 2005/122513) |
| IMPROVED METHOD OF CODIFICATION AND DECODIFICATION WITH AT LEAST TWO PAIRS OF ORTHOGONAL SEQUENCES | (WO 2008/074901) |
| IMPROVED ENCODING AND DECODING METHOD FOR THE TRANSMISSION AND ESTIMATION OF MULTIPLE SIMULTANEOUS CHANNELS | (WO 2009/112601) |
| ENCODING AND DECODING METHOD AND APPARATUS FOR REDUCING INTERFERENCE IN SIMULTANEOUS SIGNAL TRANSMISSION SYSTEMS AND MULTIUSER SYSTEMS | (WO 2009/092828) |
| METHOD AND APPARATUS FOR OBTAINING INMUNITY TO DIFFERENCE IN ARRIVAL PHASE AND DOPPLER EFFECT IN DETECTION AND COMMUNICATION SYSTEMS | NOT PUBLIC |
For more information about licensing and partnership, please send us an e-mail to license@gcmcom.com