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AssigneeHarris Corporation
InventorsGeorge W. Waters, Michael B. Luntz
Estimating the term…
A link performance indicator card analyzes incoming analog data from a demodulator on a bit by bit basis and compares the individual bit amplitudes with a fraction of the average bit signal levels. The data bits that lack sufficient amplitude to be clear-cut "high" or "low" pulses are detected as "pseudo-errors". A bit error rate gate signal controls the detectors in order that circuits operate for only one burst or part of a burst per frame always from the same earth station. A comparator is used for comparing the output of the averaged incoming analog signal with the instantaneous value of the analog signal. Alternate clocking signals are used to perform the averaging function and the comparison function of the average signal with the instantaneous signal. This alternation of the signals frees the comparison operation from the influence of any loading on the circuit. The sample points of the incoming analog signal are adjustable by use of delays on the clock signals fed into the circuits.
A data transmission error detection system for analyzing incoming analog data signals representing a sequence of equal amplitude ones and zeroes, comprising:
A data transmission error detection system for analyzing incoming signals which were transmitted with a predetermined value for a signal characteristic such as phase, frequency, or amplitude, comprising:
A method of detecting errors in an incoming signal of a data transmission system comprising the steps of:
Dependencies are inferred from the claim text.