Data communication equipment
US6426946B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 1998 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | May 28, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/33364
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention eliminates a time needed for communication handshaking by executing pre-communication protocol based on a prestored communication parameter. Specifically, at the time of carrying out a normal protocol, a modulation mode, a communication protocol, a modem parameter and a modem's optimal training time, etc., which are set by four communication channels, e.g., a communication channel for selecting a modulation mode, a communication channel for implementing line probing, a communication channel for modem training, and a communication channel for setting a modem parameter, are stored for each destination communication apparatus, and subsequent communication is implemented based on the stored information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.