Method of selecting characters from a keypad and a telephone set operating according to this method
US5991396A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Oct 9, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/2748
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
There is disclosed a method of selecting characters from a group of characters assigned to a single key, in particular a key of a telephone dialling keypad. Actuation of a key (8; 16) invokes a cursor controlled display of the characters (2; 18). The cursor is held at a particular position (11) while a key is actuated within a predetermined time interval (t.sub.1 ; 6, 7). The character string corresponding to a particular key actuation is read (18) and is used for the retrieval of the closest matching data entry from memory means (19). If the key is not further actuated within this time interval (t.sub.1), the cursor is moved to a next position (22), provided the selected character string matches any of the data entries of the memory means (20, 21). The retrieved data entry may be used, inter alia, for automatic dialling purposes. The method is applied in a telephone set having memory means containing subscriber data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.