Resources Contact Us Home
Information recording disk playback apparatus

Image Number 10 for United States Patent #5105414.

An information recording disc playback apparatus has an optical pickup for reading recorded information from a disc clamped on a turntable by a disc clamp mechanism while the disc is being rotated. The disc clamp mechanism comprises a presser member for pressing the disc against the turntable under magnetic forces, and a movable member supporting the presser member idly and movable by a drive mechanism for displacing the presser member toward and away from the turntable. After the disc has been pressed against the turntable by the presser member, the movable member is movable within a gap defined between itself and the presser member. By the movement of the movable member within the gap, the height of an optical pickup mounted on the movable member can be adjusted with respect to the recording surface of the disc.

  Recently Added Patents
Redistribution layer (RDL) with variable offset bumps
Multipoint photonic doppler velocimetry using optical lens elements
Linear transformer power supply
Wireless communication system, associated methods and data structures
Method of targeting hydrophobic drugs to vascular lesions
Analogue-to-digital converter
Pressure-sensitive adhesive composition for optical films, pressure-sensitive adhesive optical film and image display
  Randomly Featured Patents
Flow shaper for sprinkler assembly
Plasma torch electrode
Omnidirectional eddy current probe and inspection system
Correcting substitution errors during automatic speech recognition by accepting a second best when first best is confusable
Intranasal yellow fever vaccination
Recording of sports related television programming
Process for preparing an intermediate
Fishing line cutter
Personal identification apparatus and method using living body
Fractional horsepower brushless direct current motor