CORDLESS TELEPHONE SYSTEM - PHILIPS INTELLECTUAL PROPERTY

Title:

CORDLESS TELEPHONE SYSTEM

Document Type and Number:

WIPO Patent Application WO2004068829

Kind Code:

A9

Abstract:

Cordless telephones according to the DECT standard are constantly transmitting a so-called dummy barrier at a certain power level, repetition interval and transmit frequency to apply corrections to the synchronisation counters in the portable parts for synchronisation to the fixed part. According to the present invention, once timing of the portable part is synchronised to the fixed part, a wired connection is used for applying these small synchronisation corrections with respect to the synchronisation between the portable part and the fixed part of the DECT telephone system. Advantageously, an emission of electromagnetic energy is thereby reduced significantly.

More Like This:

JP2008288699	PORTABLE RADIO DEVICE, AND SWITCHING METHOD FOR ANTENNA MATCHING CIRCUIT OF PORTABLE RADIO DEVICE
WO/2017/124643	METHOD AND DEVICE FOR CREATING REMINDER EVENT
JP4028685	Mobile phone screen enlargement display system

Inventors:

RENGERT OTMAR (DE)
HAEUSLER MARTIN (DE)

Application Number:

PCT/IB2004/000119

Publication Date:

April 28, 2005

Filing Date:

January 20, 2004

Export Citation:

Click for automatic bibliography generation Help

Assignee:

PHILIPS INTELLECTUAL PROPERTY (DE)
KONINKL PHILIPS ELECTRONICS NV (NL)
RENGERT OTMAR (DE)
HAEUSLER MARTIN (DE)

International Classes:

H04M1/725; H04M1/72502; (IPC1-7): H04M1/725

Download PDF:

View/Download PDF PDF Help

Previous Patent: SYSTEM AND METHOD FOR DETERMINING CHARACTERISTICS OF INTERNATIONAL CALLS

Next Patent: SERVICE BILLING METHOD IN A COMMUNICATION NETWORK