Transmission band limiting filter apparatus and transmission apparatus
US6775331B1 · kind B1 · utility
5Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 2000 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Aug 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2201/70706
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transmission system is featured by that a correcting unit is arranged at a prestage of an ROF unit in the CDMA system. In this transmission system, an instantaneous power amount is calculated, and is compared with a preset upper limit value. When this calculated instantaneous power amount exceeds this upper limit value, this power amount is detected as an instantaneous peak. Only when the calculated instantaneous power amount exceeds the upper limit value, an amplitude correction is selectively carried out so as to reduce distortions appeared in the vicinity of a region to be corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.