A new technique for multi-channel random/burst error control.
Bulk multiplex error control coding approach to nullify long error bursts and random error protection
RANDOM ERROR↗
SEARCH · Engineering Papers
Results for “Multiplex”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Security warning system monitors up to fifteen remote areas simultaneously
Security warning system consisting of 15 television cameras is capable of monitoring several remote or unoccupied areas simultaneously. The system uses a commutator and decommutator, allowing time-multiplexed video transmission. This security system could be used in industrial and retail establishments.
Fusco, R. C.↗
Research and development of an optimized laboratory speech-compression system for spacecraft application Final report, 25 May 1965 - 25 May 1966
Optimized laboratory narrow-band speech compression system for spacecraft application - single-equivalent formant concept, two-formant synthesizer, multiplexing and circuitry
SPACECRAFT COMMUNICATIONS SYSTEM↗
Investigation of Implantable Multichannel Biotelemetry Systems Semiannual Report, Mar. 1 - Aug. 31, 1966
Integrated-circuit multiplexed telemetry systems for biomedical applications
ELECTRONICS↗
Multichannel implantable telemetry system
Multichannel telemetry system is used for chronic implantation in animals to monitor a variety of physiological parameters. A hermetically sealed unit, the system uses a time-sharing multiplex scheme to commutate between various sensor inputs and enables the number of channels to be increased or decreased.
Fryer, T. B.↗
Portable Pulse Code Modulation /PCM/
Small, programmable, high speed PCM subsystem, supports the variety of signals inherent in sophisticated equipment. A signal generated by a transducer is first conditioned to the proper signal range, then sampled by an external multiplexer or by the subsystem directly and then converted and transmitted to a receiving station.
Bradanini, P. A.↗
The FDM demodulating characteristics of non- linear phase-locked loops.
Minimum noise and maximum information bandwidths for phase locked loops in demodulated FM multiplexed subcarriers
Carden, F. F.↗
Navigation and traffic control satellite system.
Air and sea navigation and traffic control satellite system, discussing time division multiplexing and digital data links
Garabedian, A.↗
SS/FM telemetry system study Final report, Jul. 1965 - Feb. 1968
Engineering specifications and prototype model of SS/DSB multiplexer
Mullaney, J. W.↗
Data acquisition from high-speed rotating shafts
Data system, when used with a rotary transformer, results in increased life, negligible noise, and capability for a large number of data channels in testing rotating equipment. It is used to multiplex many channels of analog transducer output data and convert this signal to binary digital output.
Lesco, D. J.↗
Radio frequency baseband recording technique
Technique uses a helical-scan video recorder with auxiliary signal-conditioning equipment to provide an inexpensive, high-capacity magnetic tape recording of a 112 channel, phase-locked, multiplexed, baseband signal.
Heckman, D. C.↗
Data bus design techniques
Design requirements for multiplex digital data bus subsystem in space shuttle vehicles
Spencer, D. J.↗
A timed-shared digital filter realization
Special purpose computer organized as time-shared digital filter for real time applications with adaptable coefficients, programming and multiplexing scheme
Carroll, C. C.↗
Introduction to AM baseband telemetry techniques
AM baseband telemetry system for wideband signal transmission emphasizing SSB, DSB and quadrature multiplexed DSB modulation techniques
Frost, W. O.↗
A system for retrieving and processing data from balloons at high altitudes
Multiplexer-interface system for digital nuclear and position control data transfer from high altitude balloons to earth monitoring instruments
Baldry, R. H.↗
Reliability analysis and architecture of a hybrid-redundant digital system - Generalized triple modular redundancy with self-repair
Design and reliability of digital systems for hard cores of fault tolerant computers /hybrid- redundant systems/, discussing advantages over multiplexed systems
Avizienis, A.↗
Theory and design of coherent digital systems which track Doppler frequency
Coherent digital communication systems optimal design based on unified theory, discussing tradeoffs between error rates, Doppler tracking capability and time and frequency division multiplexing
Weber, C. L.↗
Digital telemetry system eliminates data redundancy
Floating aperature, zero-order predictor /ZOP/ circuit eliminates telemetered data redundancy by examining data from each sensor before it is multiplexed and transmitted. Digital devices to implement design are off-the-shelf items such as gates, registers and flip-flops, which are readily amenable to large-scale integration techniques.
Hymer, R. L.↗