Short-range automotive radar transceiver

Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle

Reexamination Certificate

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Details

C342S071000, C342S072000, C342S128000, C342S175000, C340S903000, C340S435000, C340S436000

Reexamination Certificate

active

11304502

ABSTRACT:
Automotive vehicle including a radar transceiver each including a heterodyne active IMPATT multiplier module arranged to receive a signal from a VCO, a first balance mixer arranged to receive a signal from a VCO, a second balance mixer arranged to receive a signal from a receive antenna and the IMPATT multiplier module and derive a first intermediate frequency signal, a first amplifier for amplifying the output of the second balance mixer and providing the amplifier output to the first balance mixer, and a second amplifier for amplifying the output of the first balance mixer. The vehicle also includes a processor which receives output from the second amplifier of each transceiver and generates a control signal for controlling one or more vehicular components based on the output from the second amplifier(s). The components can be part of a collision avoidance system, blind spot monitoring system and the like.

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Uematsu Hiroshi, Voltage-Controlled Oscillator and FMCW Radar, abstract of JP10197625, Jul. 31, 1998.

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