ELECTRONIC TRACKING DEVICES BASED ON

Brand	Owner	Address	Description
MAP-TRAX	TRI-X, INC.	127 WEST 116TH STREET JENKS OK 74037	electronic tracking devices based on GPS technology for any moving vehicle;MAP TRACK;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An optical disk device capable of data recording. A tracking error signal is generated from return light from an optical disk, and the tracking error signal to which a tracking offset signal is further added is supplied to a tracking servo circuit. A tracking offset signal in accordance with the driving current when recording data is determined based on the relationship between the driving current of the laser diode and the optimum tracking offset. Tracking control is performed using a fixed tracking offset signal when reproducing data and using a tracking offset signal which is variable in accordance with the driving current when recording data.