Resources Contact Us Home
Medium, apparatus, and method of recording optical-information

Image Number 18 for United States Patent #7768881.

An optical-information recording medium includes a substrate that includes a servo surface having a servo pattern thereon; an information recording layer laminated on the servo surface of the substrate capable of recording information as a hologram produced by interference between an information beam containing the information and a reference beam; an address servo area that is formed as a part of the servo pattern, and that records therein address information and clock information for aligning a beam, emitted from an optical-information recording apparatus for recording information in the information recording layer, to a target position in the information recording layer; and a following up servo area that is formed as a part of the servo pattern, and that is to be irradiated by the beam to make the beam follow a rotation of the optical-information recording medium.

  Recently Added Patents
Near-field transducers for focusing light
Light-emitting device
Device and implantation system for electrical stimulation of biological systems
Squib control circuit
Management of computer-file sharing between at least two devices
Detection and use of low molecular-weight modulators of the cold-menthol receptor TRPM8
Method and system for calibrating laser profiling systems
  Randomly Featured Patents
Light apparatus for illuminating a video screen
Efficient and stable radio resource allocation
Pump for a reverse circulation rotary drilling rig
Chain configurable polycellular wafer scale integrated circuit
Strap connecting device
Method and system for throttling network transmissions using per-receiver bandwidth control at the application layer of the transmitting server
Coated sheet material and process for producing same
Apparatus for video recording and reproducing, and method for trick play of video
Method and apparatus for pulse width modulation