Common mode controlled signal multiplier
US5650743A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1995 |
| Grant date | Jul 22, 1997 |
| Priority date | — |
| Expiry date | Dec 12, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/0043
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A common mode controlled signal multiplier includes a pair of interconnected differential amplifiers, each of which receives a common mode signal and an input signal and generates one phase of a differential output signal. In one of the differential amplifiers, the common mode signal is applied to the input terminal of each transistor, while the input signal is applied differentially to the input terminals of the transistors. In the other differential amplifier, an inverse phase of the common mode signal is applied to the input terminal of each transistor, while the input signal is applied differentially to the input terminals of the transistors. The differential amplifiers together generate the differential output signal, with such differential output signal having output frequencies including a sum of and a difference between the frequencies of the common mode signal and the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.