Communication system, electronic device, and determination method for determining echo noise cancelling ability
US12418390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2023 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | Jun 3, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L5/1461
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device includes a processor circuit, a frequency-domain-to-time-domain conversion circuit, a transmitter circuit, a hybrid circuit, a receiver circuit, and a time-domain-to-frequency-domain conversion circuit. The processor circuit generates a frequency-domain transmitting signal. The frequency-domain-to-time-domain conversion circuit converts the frequency-domain transmitting signal into a first time-domain transmitting signal. The transmitter circuit generates a second time-domain transmitting signal. The hybrid circuit includes an echo noise cancelling path and an echo noise path. When the echo noise cancelling path is turned off, the processor circuit receives a first frequency-domain receiving signal. When the echo noise cancelling path is turned on, the processor circuit receives a second frequency-domain receiving signal. The processor circuit determines an echo noise cancelling ability of the hybrid circuit according to the first frequency-domain receiving signal and the second frequency-domain receiving signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.