COHERENT TRACKING FOR FM IBOC RECEIVER USING A SWITCH DIVERSITY ANTENNA SYSTEM - Patent 1685688

(19)

(11)

EP 1 685 688 A2

(12)

(88)	Date of publication A3:
	15.09.2005

(43)	Date of publication:
	02.08.2006 Bulletin 2006/31

(21)	Application number: 04810923.5

(22)	Date of filing: 12.11.2004

(51)

International Patent Classification (IPC):

H04L 27/26^(2006.01)

H04B 7/08^(2006.01)

(86)	International application number:
	PCT/US2004/037944

(87)	International publication number:
	WO 2005/050865 (02.06.2005 Gazette 2005/22)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR

(30)

Priority:

18.11.2003 US 715582
23.06.2004 US 874681

(71)	Applicant: IBIQUITY DIGITAL CORPORATION
	Columbia, MD 21045 (US)

(72)	Inventors:
	KROEGER, Brian, William Sykesville, MD 21784 (US) PEYLA, Paul, James Elkridge, MD 21075 (US) BAIRD, Jeffrey, S. Columbia, MD 21044 (US)

(74)	Representative: Maury, Richard Philip et al
	Marks & Clerk 90 Long Acre London WC2E 9RA London WC2E 9RA (GB)

(54)	COHERENT TRACKING FOR FM IBOC RECEIVER USING A SWITCH DIVERSITY ANTENNA SYSTEM