Method and device for phase-modulated signals
US5751187A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 8, 1997 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | Jan 8, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0055
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device and a method correct deviation when transferring an information-carrying signal between a transmitter and a receiver. The transmitter can transmit with a plurality of frequencies generated by a voltage-controlled oscillator used for phase demodulation. The receiver demodulates the modulated information-carrying signal. A detector measures the deviation of the modulated information-carrying signal via the information-carrying signal demodulated in the receiver. The frequencies of the demodulated information-carrying signal can be adjusted so that the correct deviation is obtained, and a correct phase demodulation can be carried out.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.