Patent US3976947A successfully refreshed from Google Patents.
US3976947A
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Method and circuit arrangement for producing electrical reference pulses
Assignee: Carl Schenck AG
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Filing: 1974-09-16
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Granted: 1976-08-24
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Expires: 1994-09-16
Abstract
Abstract The present circuit arrangement is, for example, useful for producing reference signals in response to the rotation of a body such as a wheel or rotor to be balanced. Source signals are produced in response to the rotation of said body. Circuit means are provided for handling and comparing the source signals in such a manner that the reference signals are provided at an output terminal in response to the occurrence of the center of a source signal or in response to the maximum of a source signal. The production of pulses may also be controlled in response to (i.e., at) the center and the maximum of a source signal.
Inventors
- 👤 Volker Guyot
- 👤 Paul Holdinghausen
- 👤 Martin Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:37
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/153; H03K5/1532; G; G01; G01M; G01M1/00; G01M1/14; G01M1/16; G01M1/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
90 words
A method for producing timed reference signals responsive to the rotation of a body carrying a marker, comprising sensing said marker to produce a train of rectangular pulse signals, storing a value corresponding to the width of each pulse signal, integrating each pulse signal, and comparing said stored value corresponding to one pulse signal with th integrated signal corresponding to a succeeding pulse signal, thereby producing said timed reference signals at the centers of said rectangular pulse signals, whereby said timed reference signals indicate the angular displacement of said body.
Claim 2
Independent Claim
90 words
A method for producing timed reference signals responsive to the rotation of a body carrying a marker, comprising sensing said marker to produce a train of rectangular pulse signals, storing a value corresponding to the width of each pulse signal, integrating each pulse signal, and comparing said stored value corresponding to one pulse signal with th integrated signal corresponding to a succeeding pulse signal, thereby producing said timed reference signals at the centers of said rectangular pulse signals, whereby said timed reference signals indicate the angular displacement of said body.
Claim 3
Dependent Claim
23 words
The method of claim 1, comprising controlling the production of said reference signals in response to the maximum amplitude of said pulse signals.
Claim 4
Dependent Claim
31 words
The method of claim 1, wherein said step of producing said reference signals takes place at a time corresponding to the center of the pulse signals and at their maximum amplitude.
Claim 5
Independent Claim
133 words
A method for producing timed reference signals for indicating the time of passage of a marker on a rotating body past a given fixed position with respect to the body, comprising sensing said marker to produce rectangular pulse signals, which occur at the time of passage of said marker past said position, storing a value corresponding to the width of each pulse signal, integrating each pulse signal, and comparing said stored value corresponding to one pulse signal with the integrated signal corresponding to a succeeding pulse signal, thereby producing said timed reference signals at the centers of said rectangular pulse signals, whereby the time of occurrence of said timed reference signals coincides with the instantaneous location of said marker at said position and provides a reference for the angular displacement of said body.
Claim 6
Independent Claim
133 words
A method for producing timed reference signals for indicating the time of passage of a marker on a rotating body past a given fixed position with respect to the body, comprising sensing said marker to produce rectangular pulse signals, which occur at the time of passage of said marker past said position, storing a value corresponding to the width of each pulse signal, integrating each pulse signal, and comparing said stored value corresponding to one pulse signal with the integrated signal corresponding to a succeeding pulse signal, thereby producing said timed reference signals at the centers of said rectangular pulse signals, whereby the time of occurrence of said timed reference signals coincides with the instantaneous location of said marker at said position and provides a reference for the angular displacement of said body.
Claim 7
Dependent Claim
67 words
The method of claim 4, wherein said step of sensing comprises producing a rectangular pulse source signal having a leading edge corresponding to the passage of one edge of said marker past said position, and a trailing edge corresponding to the passage of the other edge of said marker past said position, the center of said rectangular pulse source signal being intermediate said leading end trailing edges.
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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |