Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Reexamination Certificate
2007-01-02
2007-01-02
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, C342S175000, C342S198000
Reexamination Certificate
active
10938618
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: 5384691 (1995-01-01), Neugebauer et al.
patent: 5631810 (1997-05-01), Takano
patent: 6259237 (2001-07-01), Fischer
patent: 6300815 (2001-10-01), Hinterscher et al.
patent: 6567252 (2003-05-01), Kizmann et al.
patent: 2003/0201930 (2003-10-01), Nagasaku et al.
patent: 2004/0062058 (2004-04-01), Hann et al.
patent: 04-261204 (1992-09-01), None
patent: 04-372525 (1992-12-01), None
patent: 06-085554 (1994-03-01), None
patent: 09-238030 (1997-09-01), None
patent: 2000077938 (2000-03-01), None
patent: 2000-258525 (2000-09-01), None
patent: 2001118693 (2001-04-01), None
patent: 2001-312318 (2001-11-01), None
patent: 2002-076967 (2002-03-01), None
patent: 2002-243834 (2002-08-01), 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 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
Okonogi Atsushi
Takano Kazuaki
Alsomiri Isam
Crowell & Moring LLP
Hitachi , Ltd.
Tarcza Thomas H.
LandOfFree
Radar system and car radar system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radar system and car radar system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radar system and car radar system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3731333