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
Isolated SCR ESD device
Block polymers and their process of preparation
Vectorization of program code
Wireless network device including a polarization and spatial diversity antenna system
Signal generator
System and method for evaluating equipment rack cooling performance
  Randomly Featured Patents
Data recording and reproducing apparatus and method for recording and reproducing data from a non-linear recording medium
Hybrid mesh belt
Valve for liquid dispensing system
Welding gun control method
Fishing reel
Disc clamp mechanism
Low voltage cutoff circuit with short circuit detection capability and method of operation thereof
System for automatically configuring a server after hot add of a device
Control apparatus for use in internal combustion engine
Semiconductor package having through-hole vias on saw streets formed with partial saw