CATV communication system and method for the internet connection
US6484318B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1997 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Aug 26, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/5616
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A CATV communication system includes a center and a plurality of terminal devices connected via a CATV net. The center includes: a first transmitter for transmitting upstream channel use information representing unoccupied channel; a first detector for detecting channel get request from data transmitted from the terminal device; a second detector for detecting a presence of the unoccupied channel; a second transmitter for assigning one of the detected unoccupied channels to the terminal device transmitted the channel get request and for transmitting channel assign data including a designation of the assigned channel; and a first communication unit for performing data communication with the terminal device via the assigned channel. The terminal device includes: a second communication unit connected to a computer for performing communication with the computer; a third detector for detecting center-directed data included in the data received from the computer; a fourth detector for detecting the upstream channel use information from the data transmitted; a third transmitter for selecting one of the unoccupied channels on the basis of the upstream channel use information and for transm…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.