Frequency conversion apparatus
US7024170B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2002 |
| Grant date | Apr 4, 2006 |
| Priority date | — |
| Expiry date | Jan 25, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A plurality of frequency conversion sections is provided, each of which comprises a first frequency mixer for converting the frequency of the input frequency signal by a signal from a first oscillator; a first filter for extracting an element signal from the output signal of the first frequency mixer; a second frequency mixer for converting the frequency of the output signal from the first filter by a signal from a second oscillator; and a second filter for extracting a element signal from the output signal of the second frequency mixer. The respective frequencies of the first and second oscillators are determined in accordance with a predetermined frequency setting rule specified by the relationship between the frequency conversion sections. The element signals sequentially arranged in a predetermined frequency interval can be rearranged in a desired frequency interval within a desired frequency bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.