Automatic dialer for telephone numbers with portable module
Abstract
Abstract An automatic dialer for telephone numbers comprises a control unit (100), a memory unit (200), a keyboard unit (300), a display unit (400), units for voltage feed (550) and regulation (500), units for amplification (600) and automatic regulation of signal level (700), a signal shaping unit (900) and a unit for connection with a telephone line (800). At least the memory unit (200) is housed in a removable portion that plugs into a fixed portion containing the other units. This memory unit contains identification information corresponding to a local telephone network; and a memory of the control unit contains identification information corresponding to the local telephone network to which this fixed portion is connected. The control unit comprises a comparator comparing the identification information of a fixed portion and of the removable portion which plugs into this fixed portion, and controls modifications of the operating program of the control unit as a function of the result of this comparison.
Inventors
- 👤 Paul Hegi
Bibliographic Details
Claims Analysis
Total Claims: 4References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-25 | 1988-03-26 | 1988-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-25 | 1992-03-26 | 1992-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-25 | 1996-03-26 | 1996-09-25 | $7700.00 | Window Closed / Lapsed |