Electronic apparatus for the permanent storage and automatic dialing of telephone numbers
US4039761A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1975 |
| Grant date | Aug 2, 1977 |
| Priority date | — |
| Expiry date | May 19, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/27495
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic apparatus for storage and automatic dialing of telephone numbers comprises memory means including a plurality of tracks for storing a plurality of telephone numbers, these means being capable of storing data representing ten digits and a pause order, preparation and storage control means for monitoring and effecting the storage operations of these data, keyboard means for selecting one of the tracks, for ordering the storage of the data on the selected track, and for ordering automatic dialing of telephone numbers memorized in any selected track, and means for reading the data in the selected track and for dealing the corresponding telephone number by actuating a transmission device which sends pulses. The keyboard means, which comprises digits and pause-order entry keys, also comprises command keys, for ordering the call of a stored telephone number, involving first an operation of restoring and reclaiming the telephone line, and then dialing operations, and for ordering a continuation of dialing a number, without a line-restoring and-reclaiming operation, after a first part of this number has already been dialed, followed by a stopping of dialing responsive to a pau…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.