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Jeroen Wals: Optical record carrier scanning device. Koninklijke Philips Electronics, June 4, 2002: US06399932 (6 worldwide citation)

An optical scanning device for scanning a record carrier directs a radiation beam towards the record carrier. Two detection systems are arranged in the path of the beam reflected by the record carrier, one before and one after the focus of the beam. Output signals of the detection systems represent ...


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Teunis Willem Tukker, Joris Jan Vrehen: Optical record carrier scanning device. CP Mahk Japan, McDermott Will & Emery, April 20, 2010: US07701832 (1 worldwide citation)

An optical scanning device scans optical record carriers, such as three optical record carriers, where each optical record carrier has an information layer having a depth which is different from the information layer depth of other optical record carriers, where d3


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Tukker Teunis W, Vrehen Joris J: Optical record carrier scanning device. Koninklijke Philips Electronics, Tukker Teunis W, Vrehen Joris J, UITTENBOGAARD Frank, October 6, 2005: WO/2005/093735 (1 worldwide citation)

An optical scanning device for scanning optical record carriers having information layers at different information layer depths within the carrier, the optical record carriers including a first optical record carrier (3’) having an information layer (2’) at a first information layer depth d1, a seco ...


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Teunis Willem Tukker, Joris Jan Vrehen: Optical record carrier scanning device. Koninklijke Philips Electronics, Philips Intellectual Property & Standards, September 6, 2007: US20070206469-A1

An optical scanning device for scanning optical record carriers having information layers at different information layer depths within the carrier, the optical record carriers including a first optical record carrier (3′) having an information layer (2′) at a first information layer depth d1, a seco ...


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Optical record carrier scanning device. Koninkl Philips Electronics, gonghai jun wangzhong zhong, March 21, 2007: CN200580009346

An optical scanning device for scanning optical record carriers having information layers at different information layer depths within the carrier, the optical record carriers including a first optical record carrier (3') having an information layer (2') at a first information layer depth d1, a seco ...


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Tukker Teunis W, Vrehen Joris J: Optical record carrier scanning device. Koninklijke Philips Electronics, January 9, 2007: KR1020067019424

An optical scanning device for scanning optical record carriers having information layers at different information layer depths within the carrier, the optical record carriers including a first optical record carrier (3) having an information layer (2) at a first information layer depth d1, a second ...