Communication device with two modes of operation
US6047196A · kind A · utility
211Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1996 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | May 29, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a mobile station which comprises two separate user interfaces and an outer covering (10, 11) which can be unfolded. The device has the appearance and the size of a common mobile phone when the outer covering (10, 11) is closed, whereby available is a first user interface being substantially a telephone user interface. When the outer covering (10, 11) of the device is unfolded it exposes a second user interface having a relatively large-sized display (12) and an alphanumeric keypad (15). Alphanumeric messages and graphical information can be transmitted and received using the second user interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.