Wave transmission lines and networks – Amplitude compression and expansion systems
Patent
1988-06-06
1989-05-09
Gensler, Paul
Wave transmission lines and networks
Amplitude compression and expansion systems
330280, 381106, H03G 700
Patent
active
048292702
ABSTRACT:
An improved compansion system that more effectively increases the dynamic range of other circuit elements. The system includes both a compression circuit to limit the input signal amplitude for a circuit element, such as a filter, and an expansion circuit to receive and modify the output of the circuit element. The expansion circuit restores a substantially linear input-output amplitude relationship and may prevent substantial overloading in the circuit element, thereby increasing the dynamic range of the circuit element.
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Data sheet, entitled "Dual Linear-Antilog Voltage Controlled Amplifier", by Solid State Micro Technology for Music, Inc. (1 page).
Article entitled "Coming to Terms with Hearing Aid Technology", by Preben Brunved, published in The Hearing Journal, Jun., 1985 (5 pages).
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Authors; F. Callias, F. Salchli, D. Girard, M. Perrin & Ph. Auber; Title: A set of 4 IC's in CMOS Technology for a Programmable Hearing Aid; published in the IEEE 1988 Custom Integrated Circuits Conference, May 1988.
Anderson James R.
Brander Richard
Beltone Electronics Corporation
Gensler Paul
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