G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 17/22 (2006.01) G11B 17/04 (2006.01) G11B 19/12 (2006.01) G11B 27/00 (2006.01) G11B 33/02 (2006.01)
Patent
CA 2074978
ABSTRACT OF THE DISCLOSURE The present invention relates to a position detecting apparatus for and method of detecting a position of a transport unit, wherein the transport unit is used to pick up a designated disk from a disk container containing a plurality of disks to transport the disk thus picked up to a disk playback unit. The present invention accumulates the number of pulses output by an encoder of the transport unit as the unit moves upward or downward along an encoder channel. The accumulated count is used as a position count for determining the position of the transport unit between the disk container and the playback unit. A second encoder generates a pulse train corresponding to the movement of the transport unit along the second encoder channel. The second encoder channel having a plurality of recesses spaced at a wider pitch than in the encoder channel. A comparison between the level of the pulse train generated by the second encoder and the odd or even number of accumulated pulses output by the encoder indicates whether or not a pulse output has been missed. If it is determined that a pulse output has been missed, the transport unit is moved to a predetermined position, and the position count is reset to a number corresponding to the predetermined position. -39-
Arifuku Naoto
Okuda Kenji
Arifuku Naoto
Okuda Kenji
Pioneer Electronic Corporation
Riches Mckenzie & Herbert Llp
LandOfFree
Position detecting apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Position detecting apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Position detecting apparatus and method will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1403394