Patent US3896390A successfully refreshed from Google Patents.
US3896390A
Expired / Lapsed
US
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High-speed sampler with variable sample rate
Assignee: United States Department of the Navy
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Filing: 1974-02-11
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Granted: 1975-07-22
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Expires: 1994-02-11
Abstract
Abstract A digital high-speed pulse sampler wherein the pulse is broken up into small segments and each segment is stored in separate sample-and-hold circuits such that the pulse may be examined in detail by circuitry coupled to the output of the sampler.
Inventors
- 👤 Jon H Bumgardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:58
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/32
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
161 words
A pulse sampler wherein the pulse to be processed is partitioned into segments and the segments are separately stored for retrieval to provide a composite output, comprising: an input for receiving at least one electrical pulse; means coupled to said input for electronically partitioning said pulse into a plurality of nominally equal valued, sequential segments; means coupled to said input for electronically delaying and preparing said pulse for processing; means having a plurality of electrical channels equal in number to said plurality of segments, coupled to both said partitioning means and said delaying means for electronically sampling said pulse, wherein each channel samples that portion of the pulse that is coupled thereto simultaneously with a said segment; means coupled to each channel for separately storing the maximum value of each sample; and means for electronically combining said maximum values from time to time to nominally reconstruct the shape of said pulse such that said pulse can be leisurely examined in detail.
Claim 2
Dependent Claim
161 words
A pulse sampler wherein the pulse to be processed is partitioned into segments and the segments are separately stored for retrieval to provide a composite output, comprising: an input for receiving at least one electrical pulse; means coupled to said input for electronically partitioning said pulse into a plurality of nominally equal valued, sequential segments; means coupled to said input for electronically delaying and preparing said pulse for processing; means having a plurality of electrical channels equal in number to said plurality of segments, coupled to both said partitioning means and said delaying means for electronically sampling said pulse, wherein each channel samples that portion of the pulse that is coupled thereto simultaneously with a said segment; means coupled to each channel for separately storing the maximum value of each sample; and means for electronically combining said maximum values from time to time to nominally reconstruct the shape of said pulse such that said pulse can be leisurely examined in detail.
Claim 3
Dependent Claim
47 words
The sampler of claim 1 wherein each channel of said sampling means includes a circuit for passing said sample only when gated by a segment of said plurality of sequential segments, and each segment is coupled to a separate channel such that the channels are sequentially gated.
Claim 4
Dependent Claim
57 words
The sampler of claim 1 wherein said partitioning means includes a digital shift register providing a plurality of sequential outputs, and a plurality of pulse generators equal in number to said segments, each coupled to said register to receive one of said sequential outputs, wherein said generators provide said sequential segments as outputs to said sampling means.
Claim 5
Dependent Claim
27 words
The sampler of claim 3 wherein the output rate of said shift register is selectable to equally space the sequential outputs throughout the span of the pulse.
Claim 6
Dependent Claim
28 words
The sampler of claim 4 wherein said sampling means further includes a circuit coupled to each said gate circuit for effectively stretching the sample coupled thereto in time.
Claim 7
Dependent Claim
21 words
The sampler of claim 5 wherein said combining means includes a multiplexer for multiplexing said maximum values of each pulse processed.
Claim 8
Dependent Claim
26 words
The sampler of claim 6 wherein said sampler includes means for preventing a second pulse from being processed until processing of the prior pulse is completed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |