Repertory automatic telephone dialing apparatus wherein a name and telephone number are searched by depressing one or more letter code keys
US4475013A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 1982 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | May 12, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/2748
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The automatic telephone dialing apparatus or repertory telephone dialer system includes a microprocessor, a keyboard and control and routing circuits coupled to and between the keyboard, the microprocessor, an incoming telephone line, and a telephone unit. The keyboard has a plurality of pushbutton keys, each one of which, when depressed, causes the automatic dialing of a predetermined number. Pairs of names and numbers are stored within an internal memory of the microprocessor such that, by depressing keys representing the first few letters of a name, one may find, and cause automatic dialing of, a number corresponding to that name. The system also includes a timer, a redial timer, an alphanumeric display, and means for listing out the stored names on the display, and for searching through a series of names that have the same first several numbers or where the names have the same first several letters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.