US3614635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable frequency control system and data standardizer
Assignee: International Business Machines Corp
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Filing: 1969-12-31
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Granted: 1971-10-19
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Expires: 1989-12-31
Abstract
Abstract A variable frequency oscillator feedback control system performs a frequency control function and a data relocation function. The oscillator is made to follow the frequency of random input data and individual incoming data pulses are relocated in time to correspond with the time slots defined by the oscillator output pulses. The feedback loop contains a novel DC logic phase comparator and data standardizer. The phase comparator controls the frequency of the oscillator while the data standardizer relocates the data pulses to the time slots of the oscillator pulses.
Inventors
- 👤 Anthony N Lapine
- 👤 Jullian E Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:31
CPC Classifications
H; H03; H03K; H03K5/00; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/085; H03L7/089; H03L7/0891; H04; H04L; H04L7/00; H04L7/02; H04L7/033
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
Apparatus for maintaining time correspondence between a data pulse and a variable frequency oscillator output pulse comprising: means for determining the phase relationship between said data pulse and said oscillator pulse; means responsive to said determining means for varying the frequency of said oscillator; and data standardizer means, responsive to said determining means, for placing said date pulse and said oscillator output pulse into time correspondence; wherein said determining means and said date standardizer means comprise: latch means for initiating a phase difference pulse in response to said data pulse, and for terminating said difference pulse in response to said oscillator output pulse; means for storing said data pulse; and means connected to said storing means for reading out said data pulse in response to said oscillator output pulse; said date standardizer means being responsive to said phase difference pulse.
Claim 2
Dependent Claim
140 words
Apparatus for maintaining time correspondence between a data pulse and a variable frequency oscillator output pulse comprising: means for determining the phase relationship between said data pulse and said oscillator pulse; means responsive to said determining means for varying the frequency of said oscillator; and data standardizer means, responsive to said determining means, for placing said date pulse and said oscillator output pulse into time correspondence; wherein said determining means and said date standardizer means comprise: latch means for initiating a phase difference pulse in response to said data pulse, and for terminating said difference pulse in response to said oscillator output pulse; means for storing said data pulse; and means connected to said storing means for reading out said data pulse in response to said oscillator output pulse; said date standardizer means being responsive to said phase difference pulse.
Claim 3
Dependent Claim
156 words
In a feedback control system having a variable frequency oscillator providing an output pulse, the combination of: a data pulse stretcher responsive to an input data pulse; a data clock phase comparator responsive to said data pulse; means for comparing the output of said data pulse stretcher and said phase comparator; current source means connected to said comparing means, said variable frequency oscillator being responsive to said current source means, and said data clock phase comparator being responsive to the output of said oscillator; data standardizer means connected to said phase comparator and the output circuit of said oscillator, said data standardizer means comprising: latch means for initiating a phase difference pulse in response to said date pulse, and for terminating said difference pulse in response to said oscillator pulse; means for storing said data pulse; and means connected to said storing means for reading out said data pulse in response to said oscillator output pulse.
Claim 4
Dependent Claim
156 words
In a feedback control system having a variable frequency oscillator providing an output pulse, the combination of: a data pulse stretcher responsive to an input data pulse; a data clock phase comparator responsive to said data pulse; means for comparing the output of said data pulse stretcher and said phase comparator; current source means connected to said comparing means, said variable frequency oscillator being responsive to said current source means, and said data clock phase comparator being responsive to the output of said oscillator; data standardizer means connected to said phase comparator and the output circuit of said oscillator, said data standardizer means comprising: latch means for initiating a phase difference pulse in response to said date pulse, and for terminating said difference pulse in response to said oscillator pulse; means for storing said data pulse; and means connected to said storing means for reading out said data pulse in response to said oscillator output pulse.
Claim 5
Dependent Claim
119 words
In a feedback control system having a variable frequency oscillator providing an output pulse; Means for producing a reference pulse in response to an input data pulse; means for producing a difference pulse indicative of the phase relationship between said data pulse and the output pulse of said oscillator; means for comparing said reference pulse and said difference pulse; said comparing means being connected between said reference pulse producing means and said difference pulse producing means; means responsive to said comparing means for altering the frequency of said oscillator; means responsive to said difference pulse producing means for storing said data pulse; and means responsive to said oscillator output pulse for reading said data pulse from said storing means.
Claim 6
Dependent Claim
119 words
In a feedback control system having a variable frequency oscillator providing an output pulse; Means for producing a reference pulse in response to an input data pulse; means for producing a difference pulse indicative of the phase relationship between said data pulse and the output pulse of said oscillator; means for comparing said reference pulse and said difference pulse; said comparing means being connected between said reference pulse producing means and said difference pulse producing means; means responsive to said comparing means for altering the frequency of said oscillator; means responsive to said difference pulse producing means for storing said data pulse; and means responsive to said oscillator output pulse for reading said data pulse from said storing means.
Claim 7
Dependent Claim
29 words
A system according to claim 3 wherein said reference pulse producing means produces a pulse of constant duration and said difference pulse producing means produces pulses of variable duration.
Claim 8
Dependent Claim
47 words
A system according to claim 3 wherein said difference pulse producing means includes a data latch responsive to said input data pulse and said oscillator output pulse, and said storing means includes a store data bit latch responsive to said data latch and said oscillator output pulse.
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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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |