Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Patent
1987-09-28
1988-07-19
Tokar, Michael J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
324 79D, G01R 3320
Patent
active
047587830
ABSTRACT:
For a fast and accurate frequency response compensation of a spectrum analyzer, the frequency-dependent control values for controlled amplifier are stored as digital values in a digital memory, and in between the memory and a sweep generator of a heterodyne oscillator, an analog-to-digital converter is disposed to provide frequency-proportional digital values of which the associated frequency-dependent control values stored in a memory can be selected and supplied to the controlled amplifier.
REFERENCES:
patent: 3955137 (1976-05-01), Harrington
patent: 4238727 (1980-12-01), Madni
patent: 4568878 (1986-02-01), Bales
patent: 4578638 (1986-03-01), Takano
patent: 4607215 (1986-08-01), Takano
patent: 4613814 (1986-09-01), Penney
patent: 4652816 (1987-03-01), Crookshanks
patent: 4703433 (1987-10-01), Sharrit
patent: 4719413 (1988-01-01), Basile
Rohde & Schwarz GmbH & Co. KG
Tokar Michael J.
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