Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1978-06-14
1980-09-02
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
328162, 328166, G01R 2700, H04B 110
Patent
active
042209145
ABSTRACT:
A measure of delay distortion produced in a circuit under test is provided by applying a purely amplitude-modulated carrier to the circuit and detecting the resulting phase modulation.
REFERENCES:
patent: 1645618 (1927-10-01), Nyquist
patent: 2751429 (1956-06-01), Schlesinger
patent: 2970258 (1961-01-01), Sinclair
patent: 2971086 (1961-02-01), Feijoo et al.
patent: 3281679 (1966-10-01), Schafer
patent: 3913011 (1975-10-01), Hughes et al.
patent: 3970926 (1976-07-01), Rigby et al.
patent: 4028625 (1977-06-01), Behrend
Hekimian Laboratories, Inc.
Karlsen Ernest F.
Rose Howard L.
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