Demultiplexing device, multiplexing device, and relay device
US8731123B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2010 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Nov 18, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J1/085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A demultiplexing device that includes frequency-conversion and reception low-pass-filter units that perform a frequency converting process and a low-pass filtering process for causing a signal to pass through a desired band, perform downsampling to reduce a sampling rate to half of a data rate of an input signal, and output the signal, reception channel-filter units that waveform-shape a signal with a desired frequency characteristic and output the waveform-shaped signal. The demultiplexing device also includes a filter-bank control unit that generates a clock control signal for supplying a clock to frequency-conversion and reception low-pass-filter units and reception channel-filter units corresponding to signal passage bands, based on channel information, and a reception-clock supply unit that supplies a clock to frequency-conversion and reception low-pass-filter units and reception channel-filter units corresponding to signal passage bands, based on the clock control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.