Personal data network

Details Personal data network Personal data network

1996-03-06

1997-12-16

Chin, Wellington

Multiplex communications

Communication over free space

Combining or distributing information via time channels

370350, 370442, 370509, 455 89, 3647081, H04J 306

Patent

active

056993579

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, each of which is intended to be carried on the person of the microcomputer user. 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.

REFERENCES:
patent: 5247285 (1993-09-01), Yokota et al.
patent: 5297142 (1994-03-01), Paggeot et al.
patent: 5307297 (1994-04-01), Iguchi et al.
patent: 5371734 (1994-12-01), Fischer
patent: 5481265 (1996-01-01), Russell

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