Signal multiplexing method, signal demultiplexing method, digital signal reference frequency correction method, multiplexing device, demultiplexing device, radio communication system, and digital signal reference frequency correction device
US8804769B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 3, 2009 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Dec 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0029
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A multiplexing/demultiplexing device has a phase difference detection part for detecting a phase difference from a reference frequency of a multiplexed signal and a reference frequency of each of input/output lines, an interpolation part for performing an interpolation on a digital transmitting/receiving signal of each of the input/output lines with a signal delayed by time corresponding to the phase difference for each of the input/output lines based on the phase difference detected by the phase difference detection part to obtain a digital transmitting/receiving signal sampled with the reference frequency of the multiplexed signal for each of the input/output lines, and a signal multiplexing/demultiplexing part for performing a multiplex/demultiplex of the digital transmitting/receiving signals of the input/output lines with use of the reference frequency of the multiplexed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.