Phone for the visually impaired with dual battery arrangement
US7509151B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 22, 2005 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Oct 8, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/0262
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A phone having an elongated housing with a top surface and a bottom surface. The phone includes a display screen affixed to the housing. The display screen forms a majority of the surface area of the top surface of the housing. The phone also includes a keypad having a plurality of keys corresponding with the digits 0-9. The plurality of keys are sequentially positioned along a side of the display on the top surface. The key for the digit 0 is adjacent to either the key for the digit 1 or the key for the digit 9. The phone further includes a first battery and a second battery that are coupled with the housing. In operation, the first and second batteries cooperatively provide power to operate the phone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.