Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1976-12-30
1978-02-14
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
325363, 328134, G01R 2314
Patent
active
040741915
ABSTRACT:
A device capable of being operated under the control of a programmer for rapidly measuring the differences between the actual values of a plurality of transmitted signal frequencies and their assigned values. It comprises a constant frequency local oscillator, a modulator fed from said oscillator and from a signal the actual frequency of which is to be determined, a bandpass filter fed from the output of said modulator, another local oscillator producing a constant frequency, and means for measuring the frequency difference between said other oscillator and the output frequency of the filter. Arrangements are provided for displaying the measured frequency difference values in digital form.
REFERENCES:
patent: 3509476 (1970-04-01), Roth
patent: 3660763 (1972-05-01), Parzen
patent: 3838338 (1974-09-01), Khoury
Rolinec Rudolph V.
Tokar Michael J.
LandOfFree
Frequency measuring device for telecommunication systems does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Frequency measuring device for telecommunication systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency measuring device for telecommunication systems will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-526932