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

Image Number 14 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
Methods and devices for detecting and measuring environmental conditions in high performance device packages
Upper surface of a skateboard deck
Laboratory spatula
Machine shop including computer system that interfaces with different legacy servers
Bicyclic azaheterocyclic carboxamides
Real-time application of filters based on image attributes
Performance apparatus, a method of controlling the performance apparatus and a program recording medium
  Randomly Featured Patents
Self-contained test sensor
Activation of carbon nanotubes for field emission applications
Method and apparatus providing read channel optimization insurance to avoid divergence in channel optimization in an assembled disk drive
RF-mems switch
Semiconductor integrated circuit having high-density base cell array
Blast resistant and blast directing containers and methods of making
Insulating glass sealant and related compositions
Security cabinets for hotel rooms
Dielectric film
Sound positioner