Record carrier, playback apparatus and information system comprising a record carrier and a playback apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 27, 2006
Grant Date -
Mar 14, 2002
app pub date -
Jul 2, 2001
filing date -
Jul 7, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An information system according to the invention comprises a record carrier and a playback apparatus. The record carrier has information marks along a track thereof and exhibits first variations caused by existence and nonexistence of the information marks along the track. The first variations represent an information signal recorded on said record carrier. The record carrier further exhibits second variations caused by variations associated with the information marks. The phase of the second variations is coupled to the phase of the first variations.
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