US3665496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical signal sampling device
Assignee: Societe de Fabrication dInstruments de Mesure SFIM SA
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Filing: 1970-05-20
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Granted: 1972-05-23
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Expires: 1990-05-20
Abstract
Abstract In a sampling device for receiving simultaneously several electrical signals at different inputs and successively sampling them in predetermined order, there is provided a priming gate for each input, the priming gates being controlled in succession by a ring counter such that the samples taken from each input appear in succession at a single output.
Inventors
- 👤 Jacques Donjon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:51
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/047; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/687; H03K17/693
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
174 words
A sampler comprising: a. a plurality of inputs each of which is adapted to receive one of a plurality of electrical input signals, b. a single output at which samples of the input signals appear in a predetermined order, c. a priming gate between each input and said output for controlling the connection of its respective input to said output, and d. a ring counter having a plurality of stages serially connected in an endless chain, the output of the last stage being connected to the input of the first stage, said stage being equal in number to the number of said inputs, each stage applying control signals to a different one of said priming gates to cause that gate to connect its respective input to said output for a predetermined duration, said stages operating in a predetermined order to apply their control signals and only one of said priming gates receiving a control signal at any one time, whereby samples of the electrical input signals appear one at a time at said output.
Claim 2
Dependent Claim
174 words
A sampler comprising: a. a plurality of inputs each of which is adapted to receive one of a plurality of electrical input signals, b. a single output at which samples of the input signals appear in a predetermined order, c. a priming gate between each input and said output for controlling the connection of its respective input to said output, and d. a ring counter having a plurality of stages serially connected in an endless chain, the output of the last stage being connected to the input of the first stage, said stage being equal in number to the number of said inputs, each stage applying control signals to a different one of said priming gates to cause that gate to connect its respective input to said output for a predetermined duration, said stages operating in a predetermined order to apply their control signals and only one of said priming gates receiving a control signal at any one time, whereby samples of the electrical input signals appear one at a time at said output.
Claim 3
Dependent Claim
52 words
A sampler according to claim 1 wherein said priming gates are field effect transistors each having a collector electrode, and including a positive D.C. source for said transistors and a diode connected between said collector electrodes and said source, thereby preventing the taking of samples in the absence of a supply voltage.
Claim 4
Dependent Claim
100 words
A sampler according to claim 1 including means for providing first and second identical clock signals, and a logic gate between each ring counter stage and its respective priming gate, and wherein each stage of said ring counter includes a trigger circuit responsive to each of said first clock signals for supplying a gate pulse, said gate pulses and said second clock signals being applied to the logic gate associated with that stage for opening its respective priming gate for a duration shorter than the duration of said gate pulse, whereby samples appear at said output at spaced apart intervals.
Claim 5
Dependent Claim
60 words
A sampler according to claim 3 wherein each of said priming gates includes a control electrode, and including a removable connection between the control electrodes of two adjacent priming gates, the logic gate associated with one of said adjacent priming gates being unconnected to said means providing second clock signals, whereby said two adjacent priming gates deliver a synchronization pulse.
Claim 6
Dependent Claim
31 words
A sampler according to claim 4 including means for deriving from the gate pulse of the last stage of said ring counter a signal for resetting the other stages to zero.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |