Patent · US Expired

Embedded keying

US7567501B2 · kind B2 · utility

0Cited by

7References

14Claims

0Family size

Assignee

Telefonaktiebolaget LM Ericsson (Publ) · SE

Inventors

Dan Weinholt · Mörbylånga, SE
Per Gustavsson · Mölnlycke, SE

Key dates

Filing date	Jul 3, 2002
Grant date	Jul 28, 2009
Priority date	—
Expiry date	Dec 29, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH04L27/3488
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Method of communicating digital data in which frames (8) are transmitted cyclically whereby a first number of symbols is transmitted according to a first keying mode (II) using a first constellation, and a second number of symbols is transmitted according to a second keying mode (L) using a second constellation. The first and second keying modes (H, L) are used at predetermined positions in the frame, whereby both the symbols according to the first and second keying mode carry information under at least an operative traffic phase.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.