Apparatus and method for demodulating multi-level signal
US5825243A · kind A · utility
24Cited by
3References
35Claims
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Key dates
| Filing date | Oct 28, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Oct 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A multi-level signal demodulation apparatus includes an A/D converter for converting an input analog signal of which the amplitude is modulated by a multi-level to a digital signal, a memory for storing the digital signal, a threshold generator for calculating plural threshold levels in accordance with the digital signal which is stored in the memory, and a demodulator for demodulating the digital signal which is obtained by the A/D converter in accordance with the plural threshold levels to a signal according to a level of the digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.