The attached patent has been registered, but
Is the IWR6843 IC in conflict with it?
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[11]PATENT: 20090309785
KIND: A1
[43]PUBLICATION_DATE: 2009/12/17
[54]TITLE_OF_INVENTION: RADAR ARRANGEMENT
[75]INVENTOR: -Nalezinski; Martin
Munchen
Federal Republic of Germany
-Seisenberger; Claus
Neufrannhofen
Federal Republic of Germany
CORRESPONDENCE_ADDRESS: LERNER GREENBERG STEMER LLP
P O BOX 2480
HOLLYWOOD, FL 33022-2480
[73]ASSIGNEE: -SIEMENS AKTIENGESELLSCHAFT
Munchen, Federal Republic of Germany
[21]SERIAL_NUMBER: 12/373451
[22]FILING_DATE: 2007/07/10
PCT_INFORMATION:
PCT Filed: 2007/07/10
[86]PCT No.: PCT/EP2007/057013
SEC._371_DATE: 2009/01/12
SEC._102E_DATE: 2009/01/12
[30]PRIORITY_INFORMATION:
2006/07/13 [DE] Federal Republic of Germany 10 2006 032 544.3
IPC_EDITION: (8)
[51]IPC_CLASS: G01S 013/91
G01S 013/34
[52]U.S._CLASS: 342/200
NUMBER_OF_CLAIMS: 18
DRAWING_SHEETS_ISSUED: 4
[57]ABSTRACT:
An FMCW radar has a variable frequency microwave signal source for
outputting a microwave signal, a frequency divider, a phase-locked
loop, a loop filter and a reference signal source. The frequency
divider is connected between the output of the variable frequency
microwave signal source and an input of the phase-locked loop. The
loop filter is connected between the output of the phase-locked loop
and the input of the variable frequency microwave signal source. The
reference signal source is connected to an additional input of the
phase-locked loop. The frequency divider is adjustable, in particular
digitally adjustable. A method for operating an FMWC radar includes
adjusting a variable frequency microwave signal source by way of a
closed-loop control circuit which uses a reference signal of a
reference signal source, especially of a quartz oscillator, as the
reference value, and a frequency-divided output signal of the
microwave signal source as the feedback value.
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Best Regards,
