43,459 research outputs found

    Digital synchronizer Patent

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    Digital synchronizer for extracting binary data in receiver of PSK/PCM communication syste

    Binary Number Sorter-Patent

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    Binary number sorter for arranging numbers in order of magnitud

    Block encoders for Reed-Muller codes

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    Encoding algorithms generate a 32 x 64-bit matrix Reed-Muller code from a 6-bit orthogonal code-word. This increases error-free reception by a high rate telemetry channel under adverse signal noise with minimal use of additional hardware

    Frequency control circuit for all-digital phase-lock loops

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    Phase-lock loop references all its operations to fixed high-frequency service clock operating at highest speed which digital circuits permit. Wide-range control circuit provides linear control of frequency of reference signal. It requires only two counters in combination with control circuit consisting only of flip-flop and gate

    Simple first order data compression processor concept

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    Data-compression processing systems based on an analog-to-digital converter /ADC/, includes a qualitative comparator for comparison of the ADC output with a ramp generator, which is connected as a bidirectional binary counter with selective inputs. A bidirectional ramp counter selects the proper ramp through a ramp generator selection network

    Ranging system Patent

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    Spacecraft ranging syste

    Monitoring system determines amplitude and time of vibration channel peaks

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    Adaptive scheme advocated in this innovation will reduce processing time and is applicable to environmental testing and to space-borne or aircraft-borne vibration monitoring devices requiring a large number of channels

    Decoder system Patent

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    Binary data decoding device for use at receiving end of communication channe

    Systems of coding and their implementation

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    Engineering planning document surveys mechanics, utility, and potential improvements of codes which control noise-generated errors introduced into radio transmission of binary information. Chronological development of certain codes and a comprehensive bibliography are included

    Simplified, high-speed binary data decoder

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    Simplified, high-speed decoder of encoded binary data received over a noisy channel is provided in a versatile apparatus that can accommodate more than one particular set of codes. The apparatus is applicable to satellite, lunar, and planetary data transmission
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