Boots – shoes – and leggings
Patent
1984-11-28
1987-06-23
Krass, Errol A.
Boots, shoes, and leggings
73647, 381117, 381121, H04R 300
Patent
active
046758356
ABSTRACT:
In order to compensate reproduction errors in electroacoustic transducers (W), for example electrodynamic loud-speakers, microphones and pickup systems, computer circuits are used. In a digital computer circuit, the electrical input signals (U.sub.1 ) are converted into altered output signals (U.sub.2) according to the inherent properties of the transducer (W), stored in a memory (PROM), with the aid of a programme, which is likewise stored. When analogue computer circuits are used, the complex inherent response of the converter (W) in respect of the amplitude/frequency response and phase/frequency response is approximated mathematically in a closed, inverse form, and the resulting function is simulated with the aid of integrators (B), summing elements (S), inverters (I) and adjusting members (P).
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patent: 4434648 (1984-03-01), Drost et al.
patent: 4446715 (1984-05-01), Bailey
patent: 4555797 (1985-11-01), Nieuwendijk et al.
patent: 4558426 (1985-12-01), Solt, Jr.
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Herndon H. R.
Krass Errol A.
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