Enhanced gain selected cell phone booster system
US7221967B2 · kind B2 · utility
87Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2005 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Jul 13, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/724
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus for boosting the signal between a cell phone (14) and a cell site (16), which includes an amplifier (64) that continually operates at a fixed gain. A power detector (72) controls an attenuator (62) that can be switched to pass the amplified signal through an attenuator (74) of moderate resistance, or through an attenuator (60) of zero resistance so the power output is boosted within the limits allowed under cell phone system standards.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.