Inventory tracking in cable TV system
US11483548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2021 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A passive component for coupling to, and thereby tracking, an intermediary device within a cable television system is disclosed. The passive component includes a tracking circuit separate in functionality from an existing circuit of the intermediary device. The tracking circuit, which is unpowered and uncontrolled, receives a first signal from a first device in the cable television system, modifies the first signal to create a modified signal, and passes the modified first signal to a second device in the cable television system, the second device being configured to determine a type for the intermediary device based on the modification to the first signal. The first device is one of a cable modem or a CMTS, and the second device is the other of the cable modem and the CMTS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.