Radio transceiver on a chip
US6633550B1 · kind B1 · utility
42Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 20, 1997 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Nov 18, 2019 |
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.