EP1275979A3

Radar apparatus

Abstract

A modulation signal generation circuit (29) performs frequency modulation of a VCO (24) with a triangular wave for operation as an FM-CW radar. A signal processing circuit (30) gives a modulation signal for detection generated from the modulation signal generation circuit (29) to the VCO (24). A high-frequency signal subjected to frequency modulation in the VCO (24) is transmitted as a radio wave from a transmission antenna and is reflected on a target and the reflected radio wave is received at a reception antenna. The reception signal and the high-frequency signal are mixed by a mixer (26) to provide a beat signal and frequency shift corresponding to a voltage V1 is detected from the frequency of the beat signal. If the voltage V1 of the modulation signal for detection is switched, the frequency shift corresponding to different voltage V1 can be provided and the frequency modulation characteristic can be detected.

EP1275979A3, drawing sheet 1 — Sheet 1 of 3

Term

Term ended

Projected expiry passed 10 July 2022, 4.2 years ago.

3 sheets

Sheet 1
Sheet 2
Sheet 3

Every citation, both waysCites: the store holds 3 of 4

Citations
Document	Relation	Office	Category	Cited during	Relevant claims
EP0573321A1	Cites	European Patent Office (EPO)	X	Search report	1,12
US5210539A	Cites	United States of America	X	Search report	1,13
US5387918A	Cites	United States of America	X	Search report	1,2
CI YANG ET AL: "Novel FM nonlinear correction method based on periodic monitoring and adaptive adjustment of FMCW source", INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES, XX, XX, 2000, pages 465 - 466, XP002172043	Non-patent	–	–	Search report	–

13 members in 6 offices

This recordMember, by publication datePriority claim

Priority claims5

Priority claims
Document	Office	Kind	Date
2001211314	Japan	A	2001-07-11
2001211314	Japan	A	2001-07-11
2001211314	Japan	–	2001-07-11
2001211314	–	–	–
JP20010211314	–	–	–

Members13

Family members, oldest first
Document	Office	Kind
EP1275979A2	European Patent Office (EPO)	A2	2003-01-15
KR20030007099A	Republic of Korea	A	2003-01-23
US2003016163A1	United States of America	A1	2003-01-23
JP2003028951A	Japan	A	2003-01-29
CN1396464A	China	A	2003-02-12
US6597308B2	United States of America	B2	2003-07-22
EP1275979A3This record	European Patent Office (EPO)	A3	2003-08-13
US2005007271A1	United States of America	A1	2005-01-13
KR100487756B1	Republic of Korea	B1	2005-05-06
CN1252491C	China	C	2006-04-19
EP1275979B1	European Patent Office (EPO)	B1	2006-10-04
DE60215078D1	Germany	D1	2006-11-16
DE60215078T2	Germany	T2	2007-05-03

32 legal events, as 4 offices reported them to INPADOC

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Events

Legal events, newest first
	Event	Code	Office
2017-05-31	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-04-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-04-28	Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25	PG25	EP
2017-04-28	Notification of lapseLapsedST	ST	FR
2017-03-22	Gb: european patent ceased through non-payment of renewal feeCeasedGBPC	GBPC	EP
2017-02-01	Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal feeWithdrawnR119	R119	DE
2015-11-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2015-10-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2015-10-30	Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP	PGFP	EP
2015-06-29	Fee paymentPLFP	PLFP	FR
2007-09-12	No opposition filedOpposition26N	26N	EP
2007-08-10	No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE	PLBE	EP
2007-08-10	Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA	STAA	EP
2007-04-20	Fr: translation filedET	ET	EP
2006-11-16	Corresponds to:REF	REF	EP
2006-10-04	Designated contracting statesAK	AK	EP
2006-10-04	European patent grantedGrantedFG4D	FG4D	GB
2006-09-01	(expected) grantORIGINAL CODE: 0009210GRAA	GRAA	EP
2006-07-12	Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS	GRAS	EP
2006-03-08	Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP	GRAP	EP
2004-10-06	First examination report despatched17Q	17Q	EP
2004-05-06	Designation fees paidAKX	AKX	EP
2004-03-31	Request for examination filed17P	17P	EP
2003-08-13	Designated contracting statesAK	AK	EP
2003-08-13	Request for extension of the european patentAX	AX	EP
2003-08-13	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2003-08-13	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2003-08-13	Information provided on ipc code assigned before grantRIC1	RIC1	EP
2003-06-28	Search report despatchedORIGINAL CODE: 0009013PUAL	PUAL	EP
2003-01-15	Designated contracting statesAK	AK	EP
2003-01-15	Request for extension of the european patentAL;LT;LV;MK;RO;SIAX	AX	EP
2002-11-29	Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI	PUAI	EP

Radar apparatus

Abstract

Term

Priority claims5

Members13

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Titles3

Classification

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