Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Reexamination Certificate
2005-06-14
2005-06-14
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
C342S082000, C342S085000, C342S118000, C342S175000
Reexamination Certificate
active
06906660
ABSTRACT:
To provide a radar system for controlling a gate power supply and drain power supply of a MMIC (microwave monolithic IC), protecting the MMIC at the time of start and shut-off, and simultaneously avoiding an occurrence of a failure in the MMIC due to a residual charge and an abnormal supply potential at the time of shut-off. A power supply control means controls the gate and drain power supplies at the rise time so that an output voltage of the gate power supply rises earlier than that of the drain power supply. Another power supply control means controls the gate and drain power supplies at the fall time so that an output voltage of the gate power supply falls later than that of the drain power supply. Another power supply control means turns off the drain power supply of the FET among power supplies when it is detected by a voltage monitoring means that even either of output voltages of the power supplies is not within said specified range.
REFERENCES:
patent: 4327333 (1982-04-01), Wilcox
patent: 5631810 (1997-05-01), Takano
patent: 6300815 (2001-10-01), Hinterscher et al.
patent: 2003/0201930 (2003-10-01), Nagasaku et al.
patent: 2000077938 (2000-03-01), None
patent: 2001118693 (2001-04-01), None
patent: 2001-312318 (2001-11-01), None
Richardson, R.; “A high performance solid state modulator for radar applications”, Power Modulator Symposium, IEEE Conference Record of the 1990 Nineteenth, Jun. 26-28, 1990, pp.: 483-491.
Chunguang et al.; “A front-end of the FMCW anticollision radar”, Microwave and Millimeter Wave Technology, 2nd International Conference on. ICMMT 2000, Sep. 14-16, 2000, pp.: 568-571.
Kitazume et al.; “Advances in millimeter-wave subsystems in Japan”, Microwave Theory and Techniques, IEEE Transactions on , vol.: 39, Issue: 5, May 1991, pp.: 775-781.
Fukute Ryuji
Nakamura Kazuto
Okonogii Atsushi
Takano Kazuaki
Alsomiri Isam
Crowell & Moring LLP
Hitachi , Ltd.
Tarcza Thomas H.
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