Apparatus for converting an alternate mark inversion signal to u

Details Apparatus for converting an alternate mark inversion signal to u Apparatus for converting an alternate mark inversion signal to u

1990-12-28

1992-05-12

Williams, Howard L.

Coded data generation or conversion

Digital code to digital code converters

To or from nrz codes

375 18, 307268, 307360, 341 57, 341 73, H03M 518

Patent

active

051131862

ABSTRACT:
The apparatus converts an AMI signal into three unipolar signals by selectively amplifying the AMI signals so that higher frequency components are amplified greater than lower components and then comparing the AMI signal with a positive and negative threshold to provide a first unipolar signal having information relating to positive levels of said AMI signal, a second unipolar signal having information relating to negative levels of said AMI signal and a Or gate for combining said first and second signals to provide a third signal having information related to both positive and negative levels.

REFERENCES:
patent: 3653036 (1972-03-01), Whiting
patent: 4123625 (1978-10-01), Chow
patent: 4462105 (1984-07-01), Wagner et al.
patent: 4860009 (1989-08-01), LaRowe

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