Up/Down tuner
US6522872B1 · kind B1 · utility
4Cited by
9References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B15/06
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An up-converter section and a down-converter section are contained in separate respective chassis. The up-converter section and the down-converter section are linked by an IF link section having a coaxial shielding structure. As such, a high-quality Up/Down tuner can be provided which is able to reduce the mutual influence of up-converter and down-converter local oscillator circuits and the entry of external noise, without increasing the size of the Up/Down tuner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.