Apparatus for combining signals from first and second informatio

Details Apparatus for combining signals from first and second informatio Apparatus for combining signals from first and second informatio

1987-09-04

1991-09-17

Atkinson, Charles E.

Excavating

371 1, G01R 3128

Patent

active

050501704

ABSTRACT:
A formatter for combining timing signals with data from an algorithmic pattern generator (APG). In the disclosed embodiment, the formatter receives address signals from an APG and timing signals from a timing unit. Each timing signal from the timing unit corresponds to an address signal received from the APG. The address and timing signals are communicated to a signal select unit wherein each timing signal selects its corresponding APG address signal. The selected APG address signal then is communicated to a signal combining unit which combines the APG address with its corresponding timing signal and generates leading edge and trailing edge marker pulses having a user-specified pulse width.

REFERENCES:
patent: 4497056 (1985-01-01), Sugamori
patent: 4550405 (1985-10-01), West
patent: 4586181 (1986-04-01), Shimizu
patent: 4635256 (1987-01-01), Herlein
patent: 4737971 (1988-04-01), Lanzafame et al.

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