Transmission device and quantization method
US9800264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed is a transmission device capable of reducing quantization errors in nonlinear quantization of IQ signals. In the device, a standard deviation measuring unit measures a standard deviation σ of the amplitude distribution of input signals. A kurtosis measuring unit measures the kurtosis of the amplitude distribution of the input signals. A correction coefficient determining unit determines a correction coefficient α corresponding to the kurtosis of the amplitude distribution of the input signals. A quantization unit quantizes the input signals using the correction coefficient α and calculates quantization data. A multiplexing unit multiplexes the quantization data and quantization control information with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.