Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1990-04-25
1992-09-15
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
340799, G01N 2188, G09G 102
Patent
active
051482304
ABSTRACT:
An instrument for depicting change in the value of a first variable as a function of a second variable comprises a display device for displaying a set of n measured values distributed along a display axis, and a sampler for acquiring a set of N (greater than n) samples of the first variable and storing values of those N samples in ordered fashion relative to a first storage domain that maps to the second variable. A set of n display samples is selected from the set of N stored samples and the values of that set of n display samples are provided to the display device. When the set of n display samples is a set of samples that are at a predetermined spacing in the first storage domain and/or occupy a selected interval of the first storage domain, a set of N1 (greater than n) samples of the first variable are acquired and their values are stored in ordered fashion relative to a second storage domain that maps to the interval of the first storage domain.
REFERENCES:
patent: 4439762 (1984-03-01), Van Vliet et al.
patent: 4528561 (1985-07-01), Kitamura
patent: 4893006 (1990-01-01), Wakai et al.
Bateman Glenn
Bremer Ronald J.
Lane Richard I.
Mader Josef L.
Bucher William B.
McGraw Vincent P.
Smith-Hill John
Tektronix Inc.
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