Baseband signal communication apparatus
US5201060A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 16, 1990 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Apr 16, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B14/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A baseband signal communication apparatus includes a transmission unit and a reception unit. The transmission unit superposes a subcarrier on one value of a baseband signal consisting of binary values, modulates a carrier with the baseband signal on which the subcarrier is superposed, and transmits the baseband signal as a transmission signal wave. The reception unit demodulates the baseband signal having the subcarrier superposed thereon by using a demodulator upon reception of the transmission signal wave, extracts the subcarrier from the demodulated signal by using a bandpass filter, and demodulates the baseband signal by causing a detector to detect an envelope of the subcarrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.