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

Image Number 16 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
Output queued switch with a parallel shared memory, and method of operating same
Method and apparatus for providing charging status information to subscriber of communication service
Adaptive control for uncertain nonlinear multi-input multi-output systems
Method and device for accessing the documentation of an aircraft according to alarms generated therein
Panel for decoration
Writing implement
Matching engine for comparing data feeds with user profile criteria
  Randomly Featured Patents
Tree girdler
Correlation of airflow delivery devices and air movers
Radiation-curable fluorescing compositions
Data communication apparatus having common memory for storing video and audio data
Sputter station
Display rack for packaged produce
Lamp socket and luminaire with same
Method of and system for managing reselection on a SCSI bus
Palm pilot holder
Device for the guided transport of a card web