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US4392106A
Expired / Lapsed
US
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Non-contact device for monitoring electrical pulse signals
Assignee: Individual
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Filing: 1981-01-07
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Granted: 1983-07-05
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Expires: 2001-01-07
Abstract
Abstract A non-contact device for monitoring electrical pulse signals includes a sensing means responsive to variation with time of the electromagnetic field produced by the monitored pulse signals, an amplifier connected to the sensing means, a rectifier connected to the amplifier via a network including an aperiodic circuit and a differentiating circuit connected in series, and an indicator unit connected to the rectifier.
Inventors
- 👤 Nikolai I. Yakovlev
- 👤 Anatoly T. Smolin
- 👤 Vasily G. Kokovikhin
- 👤 Alexei A. Kotunov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:30
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/153; G; G01; G01R; G01R21/00; G01R21/08; G01R29/00; G01R29/02; G01R29/027
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
94 words
A non-contact device for monitoring electrical pulse signals comprising: a sensing means responsive to variation with time of the electromagnetic field produced by the monitored pulse signal; an amplifier connected to said sensing means and having an output; a rectifier having an input and output; a network including an integrator circuit and a differentiating circuit connected in series, said network having an input connected to said output of said amplifier and an output connected to said input of said rectifier; and an indicator unit having an input connected to said output of said rectifier.
Claim 2
Dependent Claim
94 words
A non-contact device for monitoring electrical pulse signals comprising: a sensing means responsive to variation with time of the electromagnetic field produced by the monitored pulse signal; an amplifier connected to said sensing means and having an output; a rectifier having an input and output; a network including an integrator circuit and a differentiating circuit connected in series, said network having an input connected to said output of said amplifier and an output connected to said input of said rectifier; and an indicator unit having an input connected to said output of said rectifier.
Claim 3
Dependent Claim
113 words
A non-contact device according to claim 1, which further comprises: a second rectifier having an input and an output, said inputs of said rectifiers being connected to said output of said network for developing at said output of one of said rectifiers signals proportional to signals of one polarity at said output of said network and for developing at said output of the other of said rectifiers signals proportional to signals of the other polarity at said output of said network, said indicator unit having a second input connected to said output of said second rectifier and being responsive to the alternating current components of the signals at said outputs of said rectifiers.
References Cited (Backward Citations)
US2442765A
Cited
US3384805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |