Portable telephone having an additional device for making external connections
US5487099A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1994 |
| Grant date | Jan 23, 1996 |
| Priority date | — |
| Expiry date | Sep 22, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2250/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a portable telephone, and an object of the present invention is to provide a portable telephone and an additional device for the portable telephone capable of improving the portability of the portable telephone in the case that a power source of the portable telephone is additionally provided and the functionality of the portable telephone is extended. The additional device for the portable telephone main body having a connection function with a telephone line, can be detachably attached to a power source section, and has a power source terminal portion capable of being detachably attached to a power source terminal portion in the power source section. That is, the additional devices for the portable telephone having various functions can be prepared as options, and the selected additional device can be integrally attached to the portable telephone comprising the conventional portable telephone main body and the power source section to improve the portability. The additional devices for the portable telephone can have a power source function, a modem function, an extension function for extending the functionality of the portable telephone main body,…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.