Communications: directive radio wave systems and devices (e.g. – Directive – Including directive communication system
Patent
1991-01-15
1992-08-11
Issing, Gregory C.
Communications: directive radio wave systems and devices (e.g.,
Directive
Including directive communication system
455134, 455135, 455 335, H04B 700, H04B 1702, H04Q 700
Patent
active
051383276
ABSTRACT:
An antenna selection technique is used in an RF communincation system in which user modules (UM) communicate with at least one node. The UM's and nodes each have multiple antennae. The combination of each UM and node antenna is evaluated at the UM. Based on at least signal quality, the UM selects its antenna and the best node antenna for use. An alternate antenna is selected if a person is determined to be present in a predetermined area adjacent a UM corresponding to a predetermined RF power level.
REFERENCES:
patent: 2604587 (1952-07-01), Lyons
patent: 3781890 (1973-12-01), Boyer
patent: 4317229 (1982-02-01), Craig et al.
Buchholz Dale R.
Chang Hungkun J.
Doss William K.
Freeburg Thomas A.
McKown John
Hillman Val Jean F.
Issing Gregory C.
Motorola Inc.
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