Multichannel transmit and/or receive system comprising at least N parallel processing channels and method for decorrelating quantization noise in such a system
US12388463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2023 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Mar 20, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A multichannel transmit and/or receive system, each channel includes a DAC and a sigma-delta modulator the transfer function of which is expressed thus: OUT(z)=IN(z)·FTS(z)+Q(z)·FTB(z), where OUT is the output signal of the sigma-delta modulator, IN is the input signal of the sigma-delta modulator, FTS is the transfer function of the input signal, Q is the quantization noise and FTB is the transfer function of the quantization noise, the second terms of the transfer function of the sigma-delta modulator only being distinct from one another for two channels Vi, Vj, in order to decorrelate the quantization noise of distinct channels, the first term of said transfer function for channel Vi being equal to the first term of said transfer function for channel Vj.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.