DATA PACKET TRANSMISSION COMMUNICATIONS EQUIPMENT

Brand Owner (click to sort) Address Description
DATASEEKER Novatel Communications Ltd. 12852-141 St. Edmonton, Alberta T5L 4N8 Canada data packet transmission communications equipment and systems which consisting of a computer terminal, a cellular base station and a cellular data switch, for the intended use of network overlay systems, data packet radio traffic, mobil and cellular data communication; data communications systems, consisting of a computer terminal, a cellular base station and a cellular data switch for meter reading, vehicle location maps, point of sale terminals, credit card validation, dispatch, security and alarm services; packetized data communications switched data transmission equipment and systems for cellular frequency bands; data packet radio systems; technical manuals, pamphlets, brochures or notebooks;installation and maintenance of data packet transmission communications equipment and systems;data seeker;distributorship services in the field of data packet transmission communication equipment and systems; retail outlet store services in the field of data packet transmission, communication and systems;
THE DATASEEKER Novatel Communications Ltd. 12852-141 St. Edmonton, Alberta T5L 4N8 Canada data packet transmission communications equipment and systems which systems consisting of a computer terminal, a cellular base station and a cellular data switch, for the intended use of network overlay systems, data packet radio traffic, mobile and cellular data communication; data communications systems, consisting of a computer terminal, a cellular base station and a cellular data switch for meter reading, vehicle location maps, point of sale terminals, credit card validation, dispatch, security and alarm services; packetized data communications switched data transmission equipment and units for cellular frequency bands; data packet radio equipment; technical manuals, pamphlets, brochures or notebooks sold as a unit;installtion and maintenance of data packet transmission communications equipment and systems;the data seeker;distributorship services in the field of data packet transmission communications equipment and systems; retail outlet store services in the field of data packet transmission communications equipment and systems;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A method of modifying the error detection code (EDC) generation and verification logic at both ends of a communications link in a data communications device or system so that user packets and control packets use different EDC algorithms to protect the communications device from control packet spoofing and interference by randomly-generated test data. Data packets are transmitted internally with a standard cyclic redundancy check (CRC) or other error detection coding scheme while control packets are given a different "control" EDC. At the receiving end of the link, the received packet is tested to determine whether the EDC matches the standard or control forms. If the EDC complies with neither of these two requirements, then the packet is discarded. If, however, the packet matches the control EDC but not the standard EDC, it is checked to see if the header is in the expected control format. If the control EDC is present but the header is incorrect, the packet is discarded. Otherwise, the packet is a proper control packet having a control header and is processed according to the usual means employed in such communications device. If the EDC matches the standard data EDC form, the packet is again checked for a control header. If a control header is present, a spoof control packet has been received. The system then sets the appropriate alerts and discards the packet. Otherwise, the packet is a standard data packet having a standard header and is ready for further processing.