Patent ID: 7315585
Filing Date: 2008-01-01
Classification: H04L

Abstract:
1. A data communication method for receiving digital data on a data terminal, comprising: receiving data pulses indicative of the digital data to be transmitted at the data terminal, the data pulses having a first pulse separation to represent a first logical data value and a second pulse separation to represent a second logical data value; generating a voltage ramp signal having a voltage magnitude between a first voltage and a second voltage; resetting the voltage ramp signal to the first voltage at a first delay after the leading edge of each data pulse; regenerating the voltage ramp signal towards the second voltage at a first time period after the resetting of the voltage ramp signal; detecting a voltage value of the voltage ramp signal at the leading edge of each data pulse; generating a data output signal associated with each data pulse having a first logical state when the voltage value of the voltage ramp signal is less than a threshold value; generating a data output signal associated with each data pulse having a second logical state when the voltage value of the voltage ramp signal is greater than the threshold value; and storing the data output signal associated with each data pulse in a shift register.