Cellular hand held portable speakerphone system having an interface adapter
US5333176A · kind A · utility
129Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1993 |
| Grant date | Jul 26, 1994 |
| Priority date | — |
| Expiry date | Jul 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A hand held cellular telephone system including voice storage features which enable the cellular telephone to perform functions similar to a telephone answering device, a battery monitoring system for providing the user with a real time display of the amount of time remaining for use of the cellular telephone in both the standby and conversation modes, and an interface adapter which may be used to provide speakerphone functions, power the cellular telephone, and recharge the battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.