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
Prevention and reduction of blood loss
Automatic fixup of network configuration on system image move
Lighting device with device for regulating the illumination according to the luminance of the illumination field and corresponding use
SONOS stack with split nitride memory layer
Reverse mapping method and apparatus for form filling
Light emitting device
Mobility management in a communications system
  Randomly Featured Patents
Capacitive surface micromachined differential pressure sensor
Partition pruning via query rewrite
Enhanced work roll surface texture for cold and hot rolling of aluminum and its alloys
Toaster with more varied toasting features and a safety control
Semiconductor memory device
Spherical lens antenna having an electronically steerable beam
Means for embedding microorganisms in a polymer matrix
Method and apparatus for acquiring simultaneous and overlapping optical and charged particle beam images
Adjustable basket vibratory separator