US3675133A
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US
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Apparatus and method independently varying the widths of a plurality of pulses
Assignee: International Business Machines Corp
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Filing: 1971-06-21
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Granted: 1972-07-04
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Expires: 1991-06-21
Abstract
Abstract Input data comprises a plurality of serial random-width pulses each having a leading and a trailing edge. The relative position of each leading and trailing edge is independently adjustable in accordance with external data to give output data comprising a plurality of serial pulses derived from, but selectively different than, the input data. A data clock generates a transition signal for each pulse edge. Each transition signal is directed into a different variable delay circuit which imposes a delay dictated by external data. The delayed transitions operate a pulse regenerating flip-flop to form the output data. Appropriate gating controls permit width control of only selected pulses. By defining normal data as delayed input data, output data may be shifted either forward or backward in time relative to the normal data.
Inventors
- 👤 Richard F Frankeny
- 👤 Joey K Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:24
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K5/04; H03K5/06; H03K5/05
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
87 words
The method of independently varying the positions of the leading and trailing edges of a plurality of serial electronic pulses comprising the steps of: receiving the series of pulses; detecting each of the edges of each of the pulses; supplying a separate indication for each of the detected edges; independently delaying each indication a preselected amount; combining the delayed indications into a series of indications; and generating a series of output pulses each having an edge determined by a different one of the series of delayed indications.
Claim 2
Independent Claim
87 words
The method of independently varying the positions of the leading and trailing edges of a plurality of serial electronic pulses comprising the steps of: receiving the series of pulses; detecting each of the edges of each of the pulses; supplying a separate indication for each of the detected edges; independently delaying each indication a preselected amount; combining the delayed indications into a series of indications; and generating a series of output pulses each having an edge determined by a different one of the series of delayed indications.
Claim 3
Dependent Claim
38 words
The method of claim 1 comprising the additional steps of: generating a series of normal input pulses by delaying the received series of pulses, and delaying the position of the output pulses relative to the normal input pulses.
Claim 4
Independent Claim
86 words
A method of adjusting at an output the width of a series of electronic pulses received at an input, comprisIng the steps of: recognizing leading and trailing edges of each of the input pulses; creating an indication corresponding to the time of occurrence of each edge; delaying the time of occurrence of each indication a predetermined amount of time; and generating at the output a series of pulses having trailing and leading edges, each edge corresponding to the time of occurrence of a different delayed indication.
Claim 5
Independent Claim
86 words
A method of adjusting at an output the width of a series of electronic pulses received at an input, comprisIng the steps of: recognizing leading and trailing edges of each of the input pulses; creating an indication corresponding to the time of occurrence of each edge; delaying the time of occurrence of each indication a predetermined amount of time; and generating at the output a series of pulses having trailing and leading edges, each edge corresponding to the time of occurrence of a different delayed indication.
Claim 6
Dependent Claim
134 words
In combination: a source of input data comprising a number of input data pulse series, each pulse having a first and second point of signal change; transition means, connected to said source and operative in accordance with said signal changes, for supplying a transition signal for each signal change; delay means, connected to said transition means and operative in accordance with external control, for delaying selected ones of said transition signals an amount determined by said external controls; and output pulse generating means, connected to said delay means and operative in response to selected ones of said delayed transition signals, for generating a series of output data pulses, each having two edges, each edge having a position in time corresponding to the position in time of a different one of said delayed transition signals.
Claim 7
Dependent Claim
134 words
In combination: a source of input data comprising a number of input data pulse series, each pulse having a first and second point of signal change; transition means, connected to said source and operative in accordance with said signal changes, for supplying a transition signal for each signal change; delay means, connected to said transition means and operative in accordance with external control, for delaying selected ones of said transition signals an amount determined by said external controls; and output pulse generating means, connected to said delay means and operative in response to selected ones of said delayed transition signals, for generating a series of output data pulses, each having two edges, each edge having a position in time corresponding to the position in time of a different one of said delayed transition signals.
Claim 8
Dependent Claim
37 words
The combination of claim 4 wherein there are provided means connected between the delay means and the output pulse generating means, operative by external controls, for selectively connecting said delay means to said output pulse generating means.
Claim 9
Dependent Claim
44 words
The combination of claim 4 wherein there are provided a number of delay means less than the number of transition signals to be delayed and the amount of delay of the delay means determined by the external controls is changed for different transition signals.
Claim 10
Dependent Claim
38 words
The combination of claim 4 wherein there are provided delay means connected to the source of input data for generating delayed input data, said output data pulse edge time positions being defined relative to the delayed input data.
Claim 11
Dependent Claim
38 words
The combination of claim 5 wherein there are provided delay means connected to the source of input data for generating delayed input data, said output data pulse edge time positions being defined relative to the delayed input data.
Claim 12
Dependent Claim
38 words
The combination of claim 6 wherein there are provided delay means connected to the source of input data for generating delayed input data, said output data pulse edge time positions being defined relative to the delayed input data.
Claim 13
Dependent Claim
148 words
Apparatus for independently varying by preselected amounts the positions of the leading and lagging pulse edges of a plurality of pulse series received at a plurality of inputs, comprising for each series: transition detection means, connected to an input, for receiving a pulse series and generating as a function of each pulse edge detected an input data transition signal; a number of variable delay means, each connectable to receive signals from said transition detection means to delay input data transition signals by predetermined amounts; output selection means, each connected to delay means and operable, responsive to external selection signals, to supply a series of output transition signals as a function of the delayed input data transition signals; and output translation means, connected to said output selection means, for generating a series of output pulses as a function of the delayed transition signals, one for each two transition signals.
Claim 14
Dependent Claim
148 words
Apparatus for independently varying by preselected amounts the positions of the leading and lagging pulse edges of a plurality of pulse series received at a plurality of inputs, comprising for each series: transition detection means, connected to an input, for receiving a pulse series and generating as a function of each pulse edge detected an input data transition signal; a number of variable delay means, each connectable to receive signals from said transition detection means to delay input data transition signals by predetermined amounts; output selection means, each connected to delay means and operable, responsive to external selection signals, to supply a series of output transition signals as a function of the delayed input data transition signals; and output translation means, connected to said output selection means, for generating a series of output pulses as a function of the delayed transition signals, one for each two transition signals.
Claim 15
Dependent Claim
23 words
The apparatus of claim 10 wherein the delay means each comprise a variable delay circuit adjustable to a delay amount by external means.
Claim 16
Dependent Claim
40 words
The apparatus of claim 11 wherein there are provided data normalization means, connected to said transition detection means and responsive to said data transition to generate a sequence of normalized transition signals corresponding to uniformly delayed input data transition signals.
Claim 17
Dependent Claim
37 words
The apparatus of claim 12 wherein the output selection means iS also connected to receive the normalized transition signals and supply output transition signals as a function of selected ones of said normalized and delayed transition signals.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |