Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Reexamination Certificate
2005-10-18
2005-10-18
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
C342S109000, C342S111000, C342S192000, C342S196000
Reexamination Certificate
active
06956521
ABSTRACT:
A radar device includes a mixer that mixes an output of a transmit antenna4and an input of a receive antenna6,an LPF8,an A/D converter9that samples an output signal of the LPF8and subjects the sampled signal to A/D conversion, an FFT processing device10that subjects the converted signal to high-speed Fourier transformation, an aliasing discriminating/correcting device that discriminates a signal having a frequency component where aliasing occurs from a result by the FFT processing device10and corrects the signal to a signal of a normal frequency component where no aliasing occurs to obtain a distance and relative velocity data of the object, and a target object selecting device that selects necessary data from the distance and relative velocity data of the object which are obtained from the aliasing discriminating/correcting means.
REFERENCES:
patent: 5361072 (1994-11-01), Barrick et al.
patent: 5517196 (1996-05-01), Pakett et al.
patent: 6266004 (2001-07-01), Pannert et al.
patent: 2001/0015698 (2001-08-01), Tokoro
patent: H6-51055 (1994-02-01), None
patent: 11-064499 (1999-03-01), None
patent: H11-326504 (1999-11-01), None
patent: 2001-264426 (2001-09-01), None
patent: 2002-90448 (2002-03-01), None
Official Action of the German Patent and Trademark Office.
Alsomiri Isam
Mitsubishi Denki & Kabushiki Kaisha
Sughrue & Mion, PLLC
Tarcza Thomas H.
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