Harvard biphase

Harvard biphase is a magnetic run length code for encoding magnetic tape.[1] Harvard biphase has previously been used for digital flight data recorder where 12-bit words per second are recorded onto magnetic tape using Harvard biphase code.[2] For Harvard biphase, a phase transition in the middle of the bit cell indicates that the bit is 1. No transaction indicates that the bit is 0. There is also a phase transition at the start of each bit cell.[3]

See also

References

  1. ↑ Digest of papers: computer peripherals, CPU--benefactor or bottleneck?, IEEE Computer Society, 1974
  2. ↑ Digest of Papers, Institute of Electrical and Electronics Engineers, 1974
  3. ↑ Digital Equipment Computer Users Society Digital Equipment Corporation, 1975 - Electronic digital computers
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