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VOCAL's implementation of acoustical beamforming uses a time-domain version of a robust Generalized Sidelobe Canceller with compensation for errors in the DOA estimation..
VOCAL has many years of experience in the field of Advanced Error Coding.
VOCAL has designed several Custom Cryptographic Systems for its customers.
Custom Cryptographic System Design
VOCAL has utilized its data and fax modem libraries for the successful implementation of Lawful Interception.
Facsimile Lawful Interception
T.38 FoIP Lawful Interception
VOCAL has developed and patented a variety of industry-critical technologies. This list identifies several of the patents which have already issued and/or published. As always, please search for all relevant patents to find any VOCAL patents which may apply.