Communications: electrical – Audible indication – Percussion-type sound producer
Patent
1981-12-14
1984-05-15
Miller, C. D.
Communications: electrical
Audible indication
Percussion-type sound producer
375 87, G06F 300
Patent
active
044491190
ABSTRACT:
Apparatus for generating clocking pulses from serially transmitted data in which a level shift recurs with each bit. The circuit uses a coincidence of data word recognition and initial level shift to generate an initial clock pulse and thereafter uses the delayed clock pulses and level shift to produce subsequent clock pulses. A data word recognition circuit is also disclosed that employs a delay line for examining the profile of a synchronizing wave form.
REFERENCES:
patent: 4185273 (1980-01-01), Gowan
patent: 4218770 (1980-08-01), Weller
patent: 4242755 (1980-12-01), Gauzan
patent: 4276656 (1981-06-01), Petryk
patent: 4317111 (1982-02-01), Masoero
patent: 4320525 (1982-03-01), Woodward
Hanna Craig A.
Lancki Edmund
International Business Machines - Corporation
Johnson Kenneth P.
Miller C. D.
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