Radio transceiver on a chip
US7580683B2 · kind B2 · utility
13Cited by
139References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2005 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Feb 19, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/7152
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An entire radio transceiver can be completely integrated into one IC chip. In order to integrate the IF filters on the chip, a heterodyne architecture with a low IF is used. A single, directly modulated VCO is used for both up-conversion during transmission, and down-conversion during reception. Bond-wires are used as resonators in the oscillator tank for the VCO. A TDD scheme is used in the air interface to eliminate cross-talk or leakage. A Gaussian-shaped binary FSK modulation scheme is used to provide a number of other implementation advantages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.