NRZ to CMI (II) encoding circuit

Details NRZ to CMI (II) encoding circuit NRZ to CMI (II) encoding circuit

1990-12-07

1992-04-21

Pellinen, A. D.

Coded data generation or conversion

Digital code to digital code converters

To or from nrz codes

341 68, H03M 514

Patent

active

051072637

ABSTRACT:
A NRZ/CMI (II) code converter comprising a D-type flip-flop for retiming a series of NRZ data bits received thereto with a clock synchronized therewith, an OR-gate connected to said one output of the D-type flip-flop to compose space bits of a series of said received NRZ data bits and a transmitted clock, and a delay element connected to the output of said OR-gate. The converter also comprises another OR gate connected to a negative output of said D-type flip-flop and another D-type flip-flop having a clock input connected to the output of said OR-gate. These elements function to compose mark bits of a series of the NRZ data bits with clock pulses and to generate two-divided alternative mark bits.
An exclusive OR-gate is connected to the output of said another OR-gate and the output of said another D-type flip-flop. In the exclusive OR-gate, mark bits are alternatively generated at the mark bit portions of a series of the NRZ data bits, and clock pulses are composed with a series of the NRZ data bits at the space bit portions of a series of the NRZ data bits. In addition, mark bits and space bits of a series of the NRZ data bits can be independently processed for the same time, in order to generate the CMI (II) code.

REFERENCES:
patent: 4442528 (1984-04-01), Fukuda
patent: 4556868 (1985-12-01), Harle
patent: 4562422 (1985-12-01), Pospischill
patent: 4761635 (1988-06-01), Arnaune et al.
patent: 4837782 (1989-06-01), Sasaki

Affiliated with

Also associated with

Rating

NRZ to CMI (II) encoding circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with NRZ to CMI (II) encoding circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NRZ to CMI (II) encoding circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1590450