TRANSMISSION/RECEPTION METHOD AND DEVICE WHERE INFORMATION IS ENCODED AND DECODED ACCORDING TO RULES DEFINED BASED ON A RELATION BETWEEN A PREVIOUSLY-GENERATED MULTILEVEL CODE AND A CURRENTLY GENERATED MULTILEVEL
US6577684B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1999 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Apr 6, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4919
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
At a transmitting end, a selector multiplexes a command and data inputted from different systems to generate a multiplexed signal string(s). An encoding portion determines an amplitude value of a current multilevel code according to predetermined encoding rules based on a detected symbol and the amplitude value of a multilevel code generated immediately before and generates a multilevel code string. A transmitting portion transmits the generated multilevel code string to a receiving end through a transmission path. A decoding portion of the receiving end decodes and reproduces the command and the data with an amplitude value of the multilevel code string outputted from a receiving portion and the amplitude value of the multilevel code immediately before received according to predetermined decoding rules. The decoding portion separately outputs the command and the data. This allows various types of information to be multiplexed and transmitted with small delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.