US4962344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Segmented waveform generator
Assignee: Microsemi Semiconductor US Inc
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Filing: 1989-05-23
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Granted: 1990-10-09
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Expires: 2009-05-23
Abstract
Abstract A segmented waveform generator comprising a plurality of ramp generators whose outputs are coupled to and summed in a summing circuit to provide a waveform having a desired harmonic content or shape. The ramp generators are triggered by the rising and falling edges of trigger pulses to provide symmetrical segmented waveforms.
Inventors
- 👤 Mark W. Bohrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:19
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/94; H03K4/06; H03K4/08; H03K4/48; H03K4/50
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
120 words
An apparatus for generating segmented waveforms comprising: a plurality of ramp generators, each of said ramp generators having an input, an output and a means responsive to the leading edge of a trigger signal applied to said input for causing said output to change from a first magnitude to a second magnitude within a predetermined period of time in a linear fashion and to the trailing edge of said trigger signal for causing said output to change from said second magnitude to said first magnitude within said predetermined period of time in said linear fashion; means for summing the outputs of said plurality of ramp generators; and means for coupling said output of said ramp generators to said summing means.
Claim 2
Independent Claim
120 words
An apparatus for generating segmented waveforms comprising: a plurality of ramp generators, each of said ramp generators having an input, an output and a means responsive to the leading edge of a trigger signal applied to said input for causing said output to change from a first magnitude to a second magnitude within a predetermined period of time in a linear fashion and to the trailing edge of said trigger signal for causing said output to change from said second magnitude to said first magnitude within said predetermined period of time in said linear fashion; means for summing the outputs of said plurality of ramp generators; and means for coupling said output of said ramp generators to said summing means.
Claim 3
Dependent Claim
34 words
An apparatus according to claim 1 wherein the output of each one of said plurality of ramp generators has a positive slope as said output changes from said first magnitude to said second magnitude.
Claim 4
Dependent Claim
71 words
An apparatus according to claim 1 wherein the output of each one of a first selected number of said plurality of ramp generators has a positive slope as said output changes from said first magnitude to said second magnitude and the output of each one of the remaining ones of said plurality of ramp generators has a negative slope as said output changes from said first magnitude to said second magnitude.
Claim 5
Dependent Claim
22 words
An apparatus according to claim 1 comprising means for applying said trigger signal simultaneously to all of said plurality of ramp generators.
Claim 6
Dependent Claim
47 words
An apparatus according to claim 1 comprising: means for applying said trigger signal without any appreciable delay to a selected number of said plurality of ramp generators; and means for delaying the application of said trigger signal applied to the remainder of said plurality of ramp generators.
Claim 7
Dependent Claim
33 words
An apparatus according to claim 5 wherein said delaying means comprises means for delaying the application of said trigger signal to said remainder of said ramp generators for a predetermined period of time.
Claim 8
Independent Claim
118 words
A method of generating a segmented waveform using a plurality of ramp generators, each having a trigger signal input and an output, and a summing circuit comprising the steps of: applying a trigger signal having a leading edge and a trailing edge to said trigger signal input in each of said ramp generators; providing an output from each of said ramp generators which in response to said leading edge of said trigger signal changes from a first magnitude to a second magnitude and in response to said trailing edge of said trigger signal changes from said second magnitude to said first magnitude; and summing said outputs of said ramp generators in said summing circuit for providing said waveform.
Claim 9
Independent Claim
118 words
A method of generating a segmented waveform using a plurality of ramp generators, each having a trigger signal input and an output, and a summing circuit comprising the steps of: applying a trigger signal having a leading edge and a trailing edge to said trigger signal input in each of said ramp generators; providing an output from each of said ramp generators which in response to said leading edge of said trigger signal changes from a first magnitude to a second magnitude and in response to said trailing edge of said trigger signal changes from said second magnitude to said first magnitude; and summing said outputs of said ramp generators in said summing circuit for providing said waveform.
Claim 10
Dependent Claim
34 words
A method according to claim 7 wherein the output of each one of said plurality of ramp generators has a positive slope as said output changes from said first magnitude to said second magnitude.
Claim 11
Dependent Claim
71 words
A method according to claim 7 wherein the output of each one of a first selected number of said plurality of ramp generators has a positive slope as said output changes from said first magnitude to said second magnitude and the output of each one of the remaining ones of said plurality of ramp generators has a negative slope as said output changes from said first magnitude to said second magnitude.
Claim 12
Dependent Claim
23 words
A method according to claim 7 comprising the step of applying said trigger signal simultaneously to all of said plurality of ramp generators.
Claim 13
Dependent Claim
46 words
A method according to claim 7 comprising the steps of: applying said trigger signal without any appreciable delay to a selected number of said plurality of ramp generators; and delaying the application of said trigger signal applied to the remainder of said plurality of ramp generators.
Claim 14
Dependent Claim
34 words
A method according to claim 5 wherein said delaying step comprises the step of delaying the application of said trigger signal to said remainder of said ramp generators for a predetermined period of time.
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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) | 1993-10-08 | 1994-04-09 | 1994-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-08 | 1998-04-09 | 1998-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-08 | 2002-04-09 | 2002-10-09 | $7700.00 | Window Closed / Lapsed |