Resources Contact Us Home
Method of evaluating a readout signal, and optical disc apparatus

Image Number 10 for United States Patent #8121226.

A method and optical disc apparatus for evaluating a quality of a read signal adapted to the PRML method by evaluating a binary code decoded from the read signal obtained by a head, in which an error bit sequence having one bit edge shift from the binary code is generated, a Euclidian distance is calculated on both a correct bit sequence and the error bit sequence with respect to a predetermined target signal level, assuming that the binary code is the correct bit sequence, a Euclidian distance difference between the Euclidian distance on the correct bit sequence and the Euclidian distance on the error bit sequence is calculated, an average Euclidian distance from the target signal level is calculated, a normalized sequence error is calculated, the binary code is evaluated using the normalized sequence error.

  Recently Added Patents
Interaction analysis and prioritization of mobile content
Biodiesel data collection system
Visualization of information associated with applications in user interfaces
Transparent conductive structure
Probe for ultrasound diagnostic apparatus
Case for camera
Content reproduction apparatus and content processing method therefor
  Randomly Featured Patents
Mounting structure of impact absorbing pad
Epoxy resin system for insitu rehabilitation of pipes
Method and apparatus for temporarily immobilizing a local area of tissue
Method and apparatus for coordinating the control of HVAC units
Sub-orbital, high altitude communications system
Cross-linked polyphenylene oxide
Ornamental fence
Timing recovery method and system
Bag dispensing carton