US3965462A
Expired / Lapsed
US
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Serpentine charge-coupled-device memory circuit
Assignee: United States Department of the Air Force
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Filing: 1975-05-09
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Granted: 1976-06-22
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Expires: 1995-05-09
Abstract
Abstract In a charge-coupled-device the registers of two adjacent arrays are interleaved in a novel serpentine structure to provide a refresh-cell width of four times the width of a single-shift register.
Inventors
- 👤 Ronald A. Belt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:00
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/28; G11C19/287; H; H10; H10D; H10D84/00; H10D84/891
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
A serpentine charge-coupled-device memory apparatus comprising: a. a first array comprising a plurality of an even number of CCD linear shift registers; b. a second array comprising a plurality of an even number of CCD linear shift registers interleaved with the said first plurality of shift registers in a two-by-two relationship; c. a turn-around circuit coupling each adjacent shift register of the same array; and d. a refresh-turn circuit coupling shift registers of the same array having interleaved registers of the other array.
Claim 2
Dependent Claim
83 words
A serpentine charge-coupled-device memory apparatus comprising: a. a first array comprising a plurality of an even number of CCD linear shift registers; b. a second array comprising a plurality of an even number of CCD linear shift registers interleaved with the said first plurality of shift registers in a two-by-two relationship; c. a turn-around circuit coupling each adjacent shift register of the same array; and d. a refresh-turn circuit coupling shift registers of the same array having interleaved registers of the other array.
Claim 3
Dependent Claim
81 words
The improvement in a serpentine two-array CCD linear shift register memory device, each of the said arrays having an even number of shift registers, numerically equal to or greater than four, the said improvement comprising: a. interleaving the said linear shift registers of the said two arrays in a two-by-two relationship; b. a turn-around circuit coupling adjacent registers of the same array; and c. a refresh-turn circuit coupling registers of the same array having interposed two registers of the other array.
Claim 4
Dependent Claim
81 words
The improvement in a serpentine two-array CCD linear shift register memory device, each of the said arrays having an even number of shift registers, numerically equal to or greater than four, the said improvement comprising: a. interleaving the said linear shift registers of the said two arrays in a two-by-two relationship; b. a turn-around circuit coupling adjacent registers of the same array; and c. a refresh-turn circuit coupling registers of the same array having interposed two registers of the other array.
References Cited (Backward Citations)
US3891977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-22 | 1979-12-22 | 1980-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-22 | 1983-12-22 | 1984-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-22 | 1987-12-22 | 1988-06-22 | $7700.00 | Window Closed / Lapsed |