Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Reexamination Certificate
2011-08-30
2011-08-30
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
C342S147000, C342S153000, C342S154000, C343S824000
Reexamination Certificate
active
08009082
ABSTRACT:
In a conventional automotive radar, a return occurs in a phase difference characteristic necessary for a super-resolution method, resulting in an increase of a detection error, or an extremely narrowed azimuth detection range. A transmitting array antenna, and receiving array antennas are composed of antenna elements respectively, and aligned in a horizontal direction. The weighting of receiving sensitivities of the antenna elements of the receiving array antenna1is A1, A2, A3, and A4, which are monotonically decreased from an inner side toward an outer side as represented by A1≧A2≧A3≧A4. On the other hand, the receiving array antenna3is symmetrical with the receiving array antenna with respect to the receiving array antenna1.
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Morinaga Mitsutoshi
Shinoda Hiroshi
Bythrow Peter
Hitachi , Ltd.
Miles & Stockbridge P.C.
Tarcza Thomas H
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