Memory unit
Abstract
Abstract AN EMBODIMENT OF THE PRESENT INVENTION SHOWS A CIRCUIT BOARD USED IN THE MEMORY OF A REPERTORY DIALER. THE BOARD HS TEN COLUMNS OF ELECTRICALLY-CONNECTED SOCKETS, EACH COLUMN BEING HEADED BY A RESISTOR WEIGHTED IN VALUE ACCORDING TO THE COLUMN IN WHICH IT IS LOCATED. EACH COLUMN CORRESPONDS TO A DIGIT VALUE IN AN ADDRESS. TEN ROWS, HAVING A SOCKET IN EACH ROW, ARE ALSO PROVIDED AND CORRESPOND TO THE DIGIT POSITIONS IN AN ADDRESS. TO PROGRAM THE CIRCUIT BOARD, WIRE LEAD IS CONNECTED FROM THE SOCKET IN EACH ROW TO A SOCKET IN THE COLUMN CORRESPONDING TO THE DIGIT VALUE. THIS BOARD THEREFORE PERMITS THE PROGRAMMING OF INFORMATION DIRECTLY IN ANALOG FORM. THE MEMORY, COMPRISING A PLURALITY OF BOARDS, STORES THREE-DIMENSIONAL INFORMATION IN A TWO-DIMENSIONAL MATRIX. THE WEIGHTED RESISTORS PROVIDE THE THIRD-DIMENSIONAL INFORMATION.
Inventors
- 👤 Jacob L Wallace Jr
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |