Telecommunications – Receiver or analog modulated signal frequency converter – Plural receivers
Reexamination Certificate
2007-04-10
2007-04-10
Urban, Edward F. (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Plural receivers
C455S127200
Reexamination Certificate
active
10310971
ABSTRACT:
To provide a super directional gain in a multi-element array antenna. An array antenna comprising a plurality of antenna elements A-1–A-4spaced at intervals (equal to or less than a quarter of a wavelength) that provides a supergain is used. A weight generator circuit generates weight data in accordance with phase difference and amplitude difference among the antenna elements A-1–A-4and directivity data of each of the antenna elements A-1–A-4.The generated weight data is used to weight each of the antenna elements A-1–A-4.
REFERENCES:
patent: 3766559 (1973-10-01), Butcher et al.
patent: 6735182 (2004-05-01), Nishimori et al.
Nojima Toshio
Terada Noriyoshi
Yamaguchi Ryo
Crowell & Moring LLP
Nguyen Tu
NTT DoCoMo Inc.
Urban Edward F.
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