Receiver for mobile communication systems
US4776039A · kind A · utility
27Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1986 |
| Grant date | Oct 4, 1988 |
| Priority date | — |
| Expiry date | Jan 27, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D7/165
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A receiver suitable for use at very high frequency bands in which an antenna output is filtered, amplified and then mixed with a local oscillator in a frequency convertor to provide an intermediate frequency. The intermediate frequency is provided to a quadrature detector which directly converts the intermediate frequency into two baseband signals whose phases differ by 90.degree.. The baseband signals are independently amplified and demodulated in a common demodulator which provides a single output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.