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

Image Number 12 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
Aspect ratio enhancement
Neurophysiological central auditory processing evaluation system and method
Prioritizing application data for transmission in a wireless user device
Concentrating photovoltaic system module with actuator control
Systems and methods for economic retirement analysis
Containers having radio frequency identification tags and method of applying radio frequency identification tags to containers
Method and system for controlled media sharing in a network
  Randomly Featured Patents
Image memory device
Toroidal type continuously variable transmission
Two-way packet data protocol methods and apparatus for a mobile telecommunication system
Electro-optical transducer module and a method of fabricating such a module
Electromagnetic interference spring contact for shielding electromagnetic interference and electronic device using same
On-die bond wires system and method for enhancing routability of a redistribution layer
Method and apparatus for invalidating cache lines during direct memory access (DMA) write operations
Apparatus and method for detecting and processing impacts to an electronic percussion instrument
Pharmaceutical composition