Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-12-29
1977-07-05
Safourek, Benedict V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 77F, 325304, H04B 116, H04B 1700
Patent
active
040342999
ABSTRACT:
An FM radio receiver with a discriminator having connected thereto a plurality of bandpass filters, each tuned to pass a different portion of the audio spectrum from the discriminator, and circuitry connected to the bandpass filters for selecting the filter with the lowest output signal which is an indication of the amplitude of the noise and, hence, the quality of the signal being received by the receiver.
REFERENCES:
patent: 3729682 (1973-04-01), Elder
patent: 3775689 (1973-11-01), Greenwald
patent: 3916316 (1975-10-01), Hearn et al.
patent: 3919640 (1975-11-01), Simciak
patent: 3984776 (1976-10-01), Stedman
Cho Susumu
Erickson Paul Milton
Reynolds Gary Raymond
Bookbinder Marc E.
Gillman James W.
Motorola Inc.
Myer Victor
Safourek Benedict V.
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