Patent US2141059A successfully refreshed from Google Patents.
US3846762A
Expired / Lapsed
US
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Apparatus for optimal data storage
Assignee: Westinghouse Electric Corp
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Filing: 1973-08-10
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Granted: 1974-11-05
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Expires: 1993-08-10
Abstract
Abstract This invention relates to apparatus for optimally storing data. Analog and digital data processing techniques may be employed with a scratch pad memory to convert input analog data signal samples to digital signals and then back to analog signals to be recorded by a magnetic storage medium with the effect of increasing the analog bandwidth of the analog data signals to match the maximum available bandwidth of the storage medium. By utilizing wide band performance techniques, more storage space, in effect, can be allocated to storing data. The analog data in the storage medium may then undergo postprocessing to be utilized to either reconstitute the input analog data signals or to be made suitable for digital signal processing or for communication purposes.
Inventors
- 👤 J Gregory
- 👤 R Trepp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:33
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
207 words
Apparatus for the storage of data from an input source of analog signal samples comprising: a control means; a first storage means for storing digital signals; an analog to digital converter adapted to receive said analog signal samples and to convert said analog signals to digital signals, said analog to digital converter being responsive to said control means to write said converted digital signals into said first storage means at a first digital word rate fi; digital to analog converter means responsive to said control circuit to read said digital signals out of said first storage means at a second digital word rate fs and to convert said digital signals back into output analog signals having a particular analog bandwidth; second storage means responsive to said control circuit to record the output analog signals of said digital to analog converter, said second digital word rate fs being chosen in accordance with the maximum information storage bandwidth of said second storage means whereby said particular analog bandwidth of said converted output analog signals will be substantially equal to the maximum information storage bandwidth of said second storage means; and means to process the recorded signals of said second storage means to thereby reconstitute the input analog signal samples.
Claim 2
Dependent Claim
207 words
Apparatus for the storage of data from an input source of analog signal samples comprising: a control means; a first storage means for storing digital signals; an analog to digital converter adapted to receive said analog signal samples and to convert said analog signals to digital signals, said analog to digital converter being responsive to said control means to write said converted digital signals into said first storage means at a first digital word rate fi; digital to analog converter means responsive to said control circuit to read said digital signals out of said first storage means at a second digital word rate fs and to convert said digital signals back into output analog signals having a particular analog bandwidth; second storage means responsive to said control circuit to record the output analog signals of said digital to analog converter, said second digital word rate fs being chosen in accordance with the maximum information storage bandwidth of said second storage means whereby said particular analog bandwidth of said converted output analog signals will be substantially equal to the maximum information storage bandwidth of said second storage means; and means to process the recorded signals of said second storage means to thereby reconstitute the input analog signal samples.
Claim 3
Dependent Claim
21 words
The invention of claim 1, wherein the first digital word rate fi is less than the second digital word rate fs.
Claim 4
Dependent Claim
165 words
The invention of claim 1, wherein said processing means to reconstitute said input analog signal samples from said recorded signals of the second storage means includes: first circuit means to read said recorded signals out of said second storage means and back into said analog to digital converter, said analog to digital converter being responsive to said control means to convert the recorded analog signals from said second storage means to digital signals; second circuit means to write said converted digital signals from said analog to digital converter into said first storage means at said digital word rate fs; and third circuit means to read the digital signals out of said first storage means and into said digital to analog converter at said digital word rate fi, said digital to analog converter being responsive to said control means to convert the digital signals from said first storage means back into analog output signals to thereby reconstitute the analog signals of said source of input samples.
Claim 5
Dependent Claim
34 words
The invention of claim 3, wherein said second circuit means includes digital signal processing means for said digital signals having said word rate fs and said digital signal processing means being a spectral analyzer.
Claim 6
Dependent Claim
15 words
The invention of claim 1, wherein said first storage means is a scratch pad memory.
Claim 7
Dependent Claim
14 words
The invention of claim 1, wherein said second storage means is a magnetic recorder.
Claim 8
Dependent Claim
28 words
The invention of claim 1, wherein the cycle time rate of said first storage means is at least twice the information storage bandwidth of said second storage means.
Claim 9
Dependent Claim
13 words
The invention of claim 1, whereIn the control means includes a digital computer.
Claim 10
Dependent Claim
51 words
The invention of claim 1, including means to adjust said second digital word rate fs with respect to the maximum available information storage bandwidth of said second storage means to thereby cause said particular analog bandwidth to be substantially equal to the maximum information storage bandwidth of said second storage means.
Claim 11
Dependent Claim
185 words
The invention of claim 1, wherein said processing means to reconstitute said input analog signal samples from said recorded signals of the second storage means includes: a processing analog to digital converter; a processing storage means; a processing digital to analog converter; first circuit means to read said recorded signals out of said second storage means and into said processing analog to digital converter, said processing analog to digital converter being responsive to said control means to convert the recorded analog signals from said second storage means to digital signals; second circuit means to write said converted digital signals from said processing analog to digital converter into said processing storage means at said digital word rate fs; and third circuit means to read the digital signals out of said processing storage means and into said processing digital to analog converter at said digital word rate fi, said processing digital to analog converter being responsive to said control means to convert the digital signals from said processing storage means back into analog output signals to thereby reconstitute the analog signals of said source of input samples.
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |