Radio device, transmission/reception directivity control...

Details Radio device, transmission/reception directivity control... Radio device, transmission/reception directivity control...

2007-07-24

2007-07-24

Anderson, Matthew (Department: 2618)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S069000, C455S063400, C455S561000, C342S377000, C342S374000, C342S368000

Reexamination Certificate

active

10508557

ABSTRACT:
A radio device includes an array antenna including a plurality of antennas; an adaptive array processing unit multiplying signals provided from the respective antennas of the array antenna by receive weights, and thereby extracting a signal received from desired another radio device; a switch circuit provided corresponding to at least one of the plurality of antennas for providing the signal received from the corresponding antenna to the reception signal processing unit in a receive operation; and a transmission amplifier amplifying and providing a modulated transmission signal to the first switch circuit corresponding to the one of the plurality of antennas.

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Personal Handy Phone System ARIB Standard RCR STD-28,Association of Radio Industries and Businesses, May 2004.
Nobuyoshi Kikuma, “Adaptive Signal Processing by Array Antenna”,Kagaku Gijutsu Shuppanpp. 35-49, Nov. 1998.

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