Method for realtime digital processing of communications signals
US7573864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2002 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Aug 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W56/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a communications or jamming system, accurate timing of the transmission of digitally processed signals is accomplished through the use of standard off-the-shelf components. In order to eliminate the need for high-cost, difficult to develop, specific digital hardware or realtime synchronous software not available from the standard off-the-shelf components, the output from the non-real time components is coupled to a realtime interface that assures nanosecond timing accuracy regardless of timing errors introduced by the off-the-shelf components. In one embodiment, the signals to be transmitted are digitized and then packetized, with the data to be transmitted reconstructed using non-real time digital processing. In order to establish the exact time for transmission, the packet is given a time stamp in the form of a header which indicates the exact time at which the packet is to be transmitted by the communications system, with the packet with header being transmitted to a storage buffer, the output of which is coupled to a realtime interface including a precise time output gate, the timing of which is controlled by a precision time reference having nano-second accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.