Mobile phone transceiver
US6912376B1 · kind B1 · utility
7Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1999 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Dec 27, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/3836
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiple band transceiver (10) uses a fixed frequency oscillator (34) to generate a reference signal in both receive, mode and transmit mode for each frequency band. A dual-band variable oscillator (26) is used to tune signals in receive and transmit mode. The use of the fixed frequency oscillator in both modes and in each band reduces the number of oscillating components, simplifying the circuit and reducing power requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.