Appeal No. 2005-2584
Application No. 09/897,331
The Invention
The invention relates to a record carrier, particularly an optically readable disk,
which has information marks along tracks which exhibit first variations representing an
information signal recorded on the carrier and second variations caused by variations
associated with the information marks. The phase of the first variations is coupled to
the phase of the second variations. See page 2 of appellants’ specification. The first
variations are in the form of pits formed in a track on the disk, which are optically
detectable, and the second variation are in the form of track undulation also known as
wobble. See page 5 of appellants’ specification. The phase of the second variations is
coupled to the phase of the first variations in that a predetermined number of wobbles
corresponds to a predetermined number of channel bits represented by the first
variation.
Claim 4 is representative of the invention and is reproduced below:
4. A record carrier (1) having information marks along a track (11) thereof
and exhibiting:
first variations caused by existence and nonexistence of the information
marks along the track, said first variations representing an information signal
recorded on said record carrier, and second variations (W) caused by variations
associated with the information marks; the phase of the second variations being
coupled to the phase of the first variations.
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007