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
Method for restricting the use of an application program, system for authenticating the user of a measuring apparatus, authentication server, client apparatus and storage medium
Technique for effectively providing program material in a cable television system
Display for gloves
Method, system and program for securing redundancy in parallel computing system
Audio/video program-related hyperlink printer
Fuel-based injection control
Battery loading and unloading mechanism
  Randomly Featured Patents
Reluctance machine with fractional pitch winding and drive therefore
Device for circulating and applying a viscous material in patches on a substrate
Arrangement for manufacturing non-palletized packaging units completely covered with shrinking foil
Solder recovery method and apparatus
Lamp house structure for illumination devices
Welding robot controlling method
Turning tool with interchangeable polygonal cutting insert
Methods and systems for reducing heat flux in memory systems
Filtering means