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Patent Searching and Data


Title:
RADIO RELAY DEVICE
Document Type and Number:
WIPO Patent Application WO2005060129
Kind Code:
A8
Abstract:
This invention provides a radio relay device with a small size and reduced cost which can prevent collision of communication data when the communication data are relayed in a plurality of radio networks. The radio relay device relays the communication data between a parent device and a child device of a cordless telephone. The radio relay device includes a synchronization timing detector 16 for detecting a synchronization timing with the transmission of the parent device when relaying a packet transmitted from the parent device to the child device of a different radio network (piconet) and a timing correcting value buffer 20 for storing a correcting value computed from a difference between the synchronization timing and a clock in a bit counter 19. When the radio relay device relays the packet from the parent device to the child device, it communicates with the child device at the timing corrected on the basis of the correcting value extracted from the timing correcting value buffer 20.

Inventors:
SUWA YUTAKA
Application Number:
PCT/JP2004/019459
Publication Date:
September 09, 2005
Filing Date:
December 17, 2004
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
SUWA YUTAKA
International Classes:
H04L12/28; H04B7/155; H04B7/26; H04W16/26; H04W56/00; H04W84/12; H04W84/20; H04W88/04; H04J3/06; H04L7/04; (IPC1-7): H04B7/26; H04L12/56
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