Summary of Significant Accounting Policies (Details)	3 Months Ended												12 Months Ended
	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	May 01, 2011	Jan. 30, 2011	Oct. 31, 2010	Aug. 01, 2010	May 02, 2010	Jan. 31, 2010	Oct. 28, 2012 Year	Oct. 30, 2011	Oct. 31, 2010
Summary of Significant Accounting Policies (Textuals) [Abstract]
Operating cycle	P13W	P13W	P13W	P13W	P13W	P13W	P13W	P13W	P13W	P13W	P13W	P14W	P52W	P52W	P53W
Intangible assets, useful life, minimum (in years)													1
Intangible assets, useful life, maximum (in years)													15
Purchased technology and other intangible assets [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Intangible assets, useful life, minimum (in years)													1
Intangible assets, useful life, maximum (in years)													15
Building and improvements [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life, minimum													3
Property, Plant and Equipment, useful life, maximum													30
Demonstration and manufacturing equipment [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life, minimum													3
Property, Plant and Equipment, useful life, maximum													5
Software [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life, minimum													3
Property, Plant and Equipment, useful life, maximum													5
Furniture, fixtures and other equipment [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Property, Plant and Equipment, useful life, minimum													3
Property, Plant and Equipment, useful life, maximum													15
Land improvements [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Term of amortization													shorter of 15 years or the estimated useful life
Leasehold improvements [Member]
Summary of Significant Accounting Policies (Textuals) [Abstract]
Term of amortization													shorter of five years or the lease term