Resources Contact Us Home
Rotationally invariant non-coherent burst coding and decoding

Image Number 2 for United States Patent #8095849.

An apparatus, system and method can be arranged for coding and/or decoding with a phase invariant coding scheme that is useful for short burst signaling devices. 10-bit data is mapped into a 12-bit data with a non-coherent burst code mapper. A parity generator creates a 12-bit parity data to form a 24-bit extended binary Golay code from the 12-bit data. The values for selected bit fields in the 12-bit data and 12-bit parity data are swapped to generate I and Q data such that sensitivity to changes in rotational phase is removed. I and Q data can be used by a transmitter to transmit a rotationally-invariant signal. On receipt, I and Q signals can be recovered, reverse swapped to generate the parity and data signals, and remapped to recover the transmitted 10-bit data. The receiver can also be arranged to use a soft decoding method for improved signal integrity.

  Recently Added Patents
Antibodies to OX-2/CD200 and uses thereof
Nutritional supplement method
Servo write assembly
Control device of hybrid vehicle
Temporal document trainer and method
Adaptive non-positive inductor current detector (ANPICD)
Supporting multiple channels of a single interface
  Randomly Featured Patents
Piloted airblast lean direct fuel injector with modified air splitter
Thermal type air flow meter having semiconductor sensor elements with similar diaphragm sizes
Oil drainage device
Versatile workstation system
Varistor overvoltage protection system with temperature systems
Electrical junction box
Crop baffle arrangement
Self-closing pivoting door thrust reverser
.beta.-lactamase inhibiting compounds
Apparatus for capping used or unsanitary needles