Data transmitting method and data transmitting apparatus accompanied with a plurality of transmitting of receiving antennas
US6473466B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 1998 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Dec 7, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03694
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data transmitting apparatus in which in an antenna switching of the data transmitting apparatus, a sudden change of transmission path characteristics is prevented and a state where an automatic equalizing function on the reception side can follow can be held. The apparatus has a processing circuit for gradually switching antennas of the data transmitting apparatus with respect to the time and for continuously switching one antenna from the rated level to the 0 level and for continuously switching the other antenna from the 0 level to the rated level. The apparatus operates so as to always keep the optimum constellation state in which the automatic equalizing process follows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.