Caller identification system for wireless phone jacks and wireless modem jacks
US5970127A · kind A · utility
83Cited by
160References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/573
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wireless power line carrier voice and data communication device is provided. The device permits a user to connect a caller identification unit to a telephone extension whose only connection to a telephone line is over an AC power line. The invention provides for appropriate amplification, joining with other audio paths, and transmission while requiring no hardware modifications of the extension unit or the wireless extension jack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.