Resources Contact Us Home
Digital modulating/demodulating method and apparatus using same

Image Number 13 for United States Patent #5638064.

Digital modulating method and apparatus are provided which converts m-bit data codes, in sequence, into digital modulation codes each consisting of n channel bits (n>m) to form a modulation code sequence using connection codes. Bit patterns of portions of the modulation code sequence and the connection codes are changed or additional bit patterns are inserted into the modulation code sequence so as to meet given conditions of a minimum transition interval, a maximum transition interval, and a Digital Sum Value. Demodulating method and apparatus performing a reverse modulation operation are also described.

  Recently Added Patents
Driver circuit for driving semiconductor switches
Optical power measurement method, optical line terminal and optical network unit
Steplessly adjustable cymbal locating device
Methods to fabricate a photoactive substrate suitable for microfabrication
Asset control in location tracking system
  Randomly Featured Patents
Container construction
Utility trailer
Tool for torquing rotatable members
Transmembrane cell culture device
Method for minimizing receive packet processing for a personal computer implementation of a wireless local area network adapter
Device for controlling boost pressure in an internal combustion engine
Ink jet recording head and ink discharge method
Vehicle detection apparatus and vehicle detection method
Magnetic recording disk medium comprising a magnetic thin film and a carbon overcoat having surface nitrogen atoms, a specified carbon structure, and oxygen atoms
Mixture of antibiotics produced by new species of micromonospora