Method for canceling interfering wireless signals in cable customer premises equipment devices
US9160463B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2013 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Nov 22, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B3/48
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A customer premises equipment (“CPE”) device for use with a cable signal provided by a cable system. The CPE device includes an antenna and a signal processing system. The antenna receives an interfering radio frequency (“RF”) signal generated by one or more external wireless signal sources as a copy signal. The signal processing system receives the interfering RF signal, the cable signal, and the copy signal, modifies the copy signal to produce a processed copy signal, and combines the cable signal, the interfering RF signal, and the processed copy signal to produce a combined signal. The signal processing system also monitors error rate values of the combined signal, and adjusts the copy signal such that the copy signal at least partially cancels the interfering RF signal in the combined signal thereby reducing the error rate values of the combined signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.