Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Reexamination Certificate
2005-08-16
2005-08-16
Sotomayor, John B. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
C342S071000, C342S072000, C342S021000, C342S109000, C342S114000, C342S132000, C455S293000, C455S295000
Reexamination Certificate
active
06930631
ABSTRACT:
A sensor front end for an electronic radar sensor is disclosed that provides for a lower parts count while providing technical functionality by using multifunction parts, i.e., parts that are used both in transmitting and receiving. The sensor front end includes a continuous wave signal source that functions as a signal source when the front end is transmitting a signal and as a local oscillator when the front end is receiving a signal. The sensor front end also includes a tri-mode mixer that functions as a phase-modulator and transmit switch when the front end is transmitting a signal and as a mixer/down-converter when the front end is receiving a signal. The sensor front end further includes a common aperture antenna that acts as both a transmitting antenna for transmitting a sensor signal and for receiving a reflected signal from a object. A phase shifter can be added to provide a predetermined phase shift in the transmitted sensor signal, the received reflected signal, or both, such that in-phase and quadrature signal components are provided. In addition, phase coding may be added to the signal to reduce the degenerative impact of interfering signals. A receiver module is coupled to the tri-mode mixer such that, when receiving a reflected signal, the receiver provides a baseband sensor output signal that can be used to determined the position and velocity of the object. A sampling module can be added such that the sensor output signal is sampled and provided as an analog signal, or the sampled sensor output signal can be provided to an analog-to-digital converter to convert the sensor output signal into a digital format, or both.
REFERENCES:
patent: 4034373 (1977-07-01), de Pierre et al.
patent: 4078234 (1978-03-01), Fishbein et al.
patent: 4140060 (1979-02-01), Brenner
patent: 4176351 (1979-11-01), DeVita et al.
patent: 4308473 (1981-12-01), Carnes
patent: 6085151 (2000-07-01), Farmer et al.
patent: 6225943 (2001-05-01), Curley et al.
patent: 2003/0100285 (2003-05-01), Puglia
patent: 0 809 118 (1997-11-01), None
patent: 0 940 690 (1999-09-01), None
“A 12 GHz Low Cost Earth Terminal for Direct TV Reception from Broadcast Satellites”, Douville, R.J.; Microwave Symposium Digest, MTT-S International vol. 77, Issue 1, Jun. 1977 Ps:427-429.
Patent Abstracts of Japan, Publication No. 01047985, Publication Date Feb. 22, 1989, Application Date Aug. 18, 1987.
Williams D A: “Millimetre Wave Radars for Automotive Applications” Microwave Symposium Digest, 1992., IEEE MTT-S International Albuquerque NM, USA Jun. 1-5, 1992, New York, NY USA, IEEE, US, (Jun. 1, 1992), pp. 721-724, XP010062944. ISBN: 0-7803-0611-2.
M/A-Com Inc.
Sotomayor John B.
LandOfFree
Sensor front-end with phase coding capability does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sensor front-end with phase coding capability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sensor front-end with phase coding capability will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3471327