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  2. ARINC 429 - Wikipedia

    en.wikipedia.org/wiki/ARINC_429

    Bit-field discrete data, Binary Coded Decimal (BCD), and Binary Number Representation (BNR) are common ARINC 429 data formats. Data formats may also be mixed. Data formats may also be mixed. Bits 9 and 10 are Source/Destination Identifiers (SDI) and may indicate the intended receiver or, more frequently, indicate the transmitting subsystem.

  3. Gray code - Wikipedia

    en.wikipedia.org/wiki/Gray_code

    The binary-reflected Gray code list for n bits can be generated recursively from the list for n − 1 bits by reflecting the list (i.e. listing the entries in reverse order), prefixing the entries in the original list with a binary 0, prefixing the entries in the reflected list with a binary 1, and then concatenating the original list with the ...

  4. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.

  5. Fault detection and isolation - Wikipedia

    en.wikipedia.org/wiki/Fault_detection_and_isolation

    Fault detection, isolation, and recovery (FDIR) is a subfield of control engineering which concerns itself with monitoring a system, identifying when a fault has occurred, and pinpointing the type of fault and its location. Two approaches can be distinguished: A direct pattern recognition of sensor readings that indicate a fault and an analysis ...

  6. c-chart - Wikipedia

    en.wikipedia.org/wiki/C-chart

    The p-chart models "pass"/"fail"-type inspection only, while the c-chart (and u-chart) give the ability to distinguish between (for example) 2 items which fail inspection because of one fault each and the same two items failing inspection with 5 faults each; in the former case, the p-chart will show two non-conformant items, while the c-chart ...

  7. GE-600 series - Wikipedia

    en.wikipedia.org/wiki/GE-600_series

    The GE-600 series is a family of 36-bit mainframe computers originating in the 1960s, built by General Electric (GE). When GE left the mainframe business, the line was sold to Honeywell , which built similar systems into the 1990s as the division moved to Groupe Bull and then NEC .

  8. IRIG timecode - Wikipedia

    en.wikipedia.org/wiki/IRIG_timecode

    After 0.2 of a bit time, to encode a binary 0; After 0.5 of a bit time, to encode a binary 1; After 0.8 of a bit time, to encode a marker bit; Bit 0 is the frame marker bit P r. Every 10th bit starting with bit 9, 19, 29, ... 99 is also a marker bit, known as position identifiers P 1, P 2, ..., P 9, P 0.

  9. GE-200 series - Wikipedia

    en.wikipedia.org/wiki/GE-200_series

    The main machine in the line was the GE-225 (1961). [5] [3] It used a 20-bit word, of which 13 bits could be used for an address.Along with the basic central processing unit (CPU) the system could also have had a floating-point unit (the "Auxiliary Arithmetic Unit"), or a fixed-point decimal option with three six-bit decimal digits per word.