Boots – shoes – and leggings
Patent
1981-02-12
1983-07-19
Smith, Jerry
Boots, shoes, and leggings
358166, 364852, G06F 1531
Patent
active
043947441
ABSTRACT:
A real-time amplitude histogram shaper transforms an input analog signal with a corresponding input amplitude histogram to an output signal with a specified output histogram. The histogram shaper comprises a histogram estimator, which estimates the amplitude histogram of an input analog signal. A calculator, whose input is connected to the output of the estimator, computes the transfer function required to transform the input signal to an output signal with the desired amplitude histogram. A controller, whose input is connected to the output of the calculator, generates control signals. A transfer function generator, whose input is connected to the output of the control signal generator, modifies its input signals by a ratio P.sub.out /P.sub.in. The gain P.sub.out /P.sub.in is a function of P.sub.in, that is, P.sub.out /P.sub.in =g(P.sub.in).P.sub.out is the magnitude of the output parameter and P.sub.in is the magnitude of the input parameter, the output signal thereby having the desired amplitude histogram. Generally, the parameter P would be a voltage V.
REFERENCES:
patent: 3622770 (1971-11-01), Edelson
patent: 3979555 (1976-09-01), Opitter et al.
patent: 3983320 (1976-09-01), Ketcham et al.
patent: 4020286 (1977-04-01), Ceci
patent: 4297527 (1981-10-01), Pate
patent: 4315319 (1982-02-01), White
O. R. Buhler et al., "Variable Gain Amplifiers", IBM Technical Disclosure lletin, vol. 21, No. 8, Jan. 1979, pp. 3094-3096.
Beers Robert F.
Johnston Ervin F.
Smith Jerry
Stan John
The United States of America as represented by the Secretary of
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