Digital recorder with apparatus for viewing during recording process
Abstract
Abstract A RECORDING MEDIUM COMPRISING A THIN CONDUCTIVE LAYER IS PLACED IN CONTACT ON ONE SIDE THEREOF WITH A PLURALITY OF INDICIDUALLY ENERGIZABLE CONDUCTIVE MARKERS DISPOSED IN A TWO-DIMENSIONAL MATRIX ARRAY WHICH EFFECT MARKS AT THE POINTS OF CONTACT THEREBETWEEN. SELECTIVE ENERGIZATION OF THE MARKERS IN ACCORDANCE WITH AN INFORMATION PATTERN EFFECTS A SERIES OF MARKS REPRESENTATIVE OF THE INFORMATION PATTERN. THE INVENTION IS PARTICULARLY CHARACTERIZED IN THAT THE MARKERS ARE IN A TWO-DIMENSIONAL MATRIC ARRAY AND THAT THE RECORDING MEDIUM IS ARRANGED SO THAT THE MARKS MAY BE VIEWED WHILE THEY ARE BEING PRODUCED FROM THE SIDE OF THE RECORDING MEDIUM OPPOSITE THE SIDE IN CONTACT WITH THE MARKERS.
Inventors
- 👤 Karl Birken
Bibliographic Details
Claims Analysis
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |