Patent · US Expired

Digital multi-subscriber radio telecommunication system working with frequency jumping

US6741865B1 · kind B1 · utility

0Cited by

9References

19Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Stefan Heinen · Krefeld, DE
Stefan Beyer · Mering, DE

Key dates

Filing date	Jan 16, 2001
Grant date	May 25, 2004
Priority date	—
Expiry date	Jan 16, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH04B7/2618
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

In the digital multi-subscriber radio telecommunication system which operates using frequency hopping technology and is intended for use in the 2.4 GHz ISM (Industrial Scientific and Medical) frequency band, in which a 20 dB channel bandwidth of a maximum of 1 MHz is prescribed, the known, DECT radio system operating using TDMA/FDMA technology is matched, in RF terms, to the ISM band and is modified such that the data transfer rate is reduced, preferably halved, by comparison with the data transfer rate of 1152 kbit/s, which is prescribed as standard for DECT. The system according to the invention can be used in cordless telephones.

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