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| Number | Title | Issue Date |
| 8155614 | Apparatus and methods for signal processing Apparatus including a matrix; a plurality of magnetic particles distributed in at least a portion of the matrix; the matrix being configured to enable the plurality of magnetic particles to move position relative to one another, and at least a portion of the plurali... | 04/10/2012 |
| 7239858 | Integrated switching device for routing radio frequency signals An RFID reader accessible thorough a personal computer and includes a PC card interface and a controller both operating according to clock signals from a crystal oscillator. The RFID reader further includes a linearized power amplifier modulator in a transmit path, ... | 07/03/2007 |
| 7127274 | Method and system for reducing the effect of signal-interference in null areas caused by one or more antennas In wireless communications, a method and system for enhancing signal decoding capability in null areas uses dithering to break up or modify the null areas. The null areas form in overlapping regions of the beams of two antennas or in overlapping regions of a single ... | 10/24/2006 |
| 6950643 | Digital filter combination The invention features a filter arrangement for filtering an input signal that includes a transmitter signal having a predetermined pulse shape at a receiving end to transmit the input signal, a decimation filter to decimate the input signal that includes a passband... | 09/27/2005 |
| 5930680 | Method and system for transceiving signals using a constellation of satellites in close geosynchronous orbit A C-Band or Ku-Band satellite communication system uses a relatively small receiving antenna while operating within current FCC designated bandwidth and using existing satellite configurations. Aperture synthesis techniques create nulls in orbit locations... | 07/27/1999 |
