Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1988-11-14
1990-05-01
Zazworsky, John
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
307354, 307362, 307494, H03K 524
Patent
active
049221310
ABSTRACT:
A differential voltage threshold detector that may be used in a hearing aid circuit. The configuration includes an inherent differential/full wave operation, without the need for additional circuitry. The detector includes a differential transconductance stage, first and second "top" current mirrors (which respond to the transconductance stage), first and second "bottom" current mirrors (which respond to the top current mirrors) and a detector (which responds to the current levels in the mirrors). The detector effectively issues an output signal when the voltage applied to the threshold detector varies by more than a predetermined amount.
REFERENCES:
patent: 3805093 (1974-04-01), Hodemakers
patent: 3848139 (1974-11-01), Holt, Jr.
patent: 3927279 (1975-12-01), Nakamura
patent: 4099035 (1978-07-01), Yanick
patent: 4119814 (1978-10-01), Harless
patent: 4271364 (1981-06-01), Leonard
patent: 4353064 (1982-10-01), Scott
patent: 4366349 (1982-12-01), Adelman
patent: 4405831 (1983-09-01), Michelson
patent: 4409435 (1983-10-01), Ono
patent: 4484345 (1984-11-01), Stearns
patent: 4490691 (1984-12-01), Dolby
patent: 4508940 (1985-04-01), Steeger
patent: 4517415 (1985-05-01), Laurence
patent: 4535471 (1985-08-01), Kuroda
patent: 4596902 (1986-06-01), Gilman
patent: 4602168 (1986-07-01), Single
patent: 4630305 (1986-12-01), Borth
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).
Data Sheet, entitled "Dual Continuous Analog High Pass Filter", by LTI, Bearing Designation 500-73-1 (4 pages).
A Set of 4 IC's In CMOS Technology for a Programmable Hearing Aid by F. Cllias, F. Salchli, D. Girard, M. Perrin, Ph. Aubert.
Anderson James R.
Brander Richard
Beltone Electronics Corporation
Zazworsky John
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