Personal data network

Details Personal data network Personal data network

1997-10-14

2000-10-03

Vu, Huy D.

Multiplex communications

Communication over free space

Combining or distributing information via time channels

370350, 370442, 370509, 455 89, 3647081, H04B 7212

Patent

active

061282901

ABSTRACT:
The data network disclosed herein utilizes low duty cycle pulsed radio frequency energy to effect bidirectional wireless data communication between a server microcomputer unit and a plurality of peripheral units located within short range of the server unit, e.g. within 20 meters. By establishing a tightly synchronized common time base between the units and by the use of sparse codes, timed in relation to the common time base, low power consumption and avoidance of interference between nearby similar systems is obtained.

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patent: 5307297 (1994-04-01), Iguchi et al.
patent: 5371734 (1994-12-01), Fischer
patent: 5481265 (1996-01-01), Russell
patent: 5517505 (1996-05-01), Buchholz et al.
patent: 5598419 (1997-01-01), Weigand et al.

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