H - Electricity – 03 – K
Patent
H - Electricity
03
K
H03K 5/04 (2006.01) H03K 9/04 (2006.01) H04L 25/03 (2006.01) H04L 25/49 (2006.01) H04L 27/00 (2006.01)
Patent
CA 2231944
One aspect of the invention provides a method of processing an PPM encoded input signal transmission of data pulses to a data processing apparatus by processing the pulses by lengthening or shortening the pulses to a length within the predetermined acceptance pulse duration range of the data processing apparatus comprising: detecting when the input pulses of the input signal fall below the duration required and lengthening the pulses by a sufficient amount to bring them within the predetermined duration; detecting when the input pulses of the input signal exceed the duration required and reducing the duration of the pulses by a sufficient amount to bring them within the predetermined duration. Another aspect of the invention provides an adaptive pulse shaping pre-demodulation device, such as an electronic module, including: an input to accept a series of pulses derived from the reception of a PPM encoded data transmission signal in which the transmission signal includes a data transmission packet; a pulse width comparator to determine whether the pulses of the signal fall within a predetermined acceptance range of duration; a pulse shaping adjuster to modify the duration of the pulses to increase or decrease the duration of the pulses to bring them within the predetermined acceptance range; an output to output the modified pulses for subsequent processing.
Schuppe Raymond Walter M.
Varga Brian Daniel
Ibm Canada Limited - Ibm Canada Limitee
Rosen Arnold
LandOfFree
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