Resources Contact Us Home
Browse by Category: Main > Information Technology
Class Information
Number: 341/74
Name: Coded data generation or conversion > Digital code to digital code converters > To or from nrz (nonreturn-to-zero) codes > To or from double density code
Description: Subject matter for converting digital signals to or from other digital signals where a one is a transition at the end of a bit period and a zero is a transition at the center of a bit period, except when a zero follows a one, in which case there is no transition in the bit period.

Patents under this class:

Patent Number Title Of Patent Date Issued
7499490 Encoders for block-circulant LDPC codes Mar. 3, 2009
6084535 System and method for generating many ones codes with hamming distance after precoding Jul. 4, 2000
5841379 Method and apparatus for selectively counting consecutive bits Nov. 24, 1998
5710561 Method and apparatus for double run-length encoding of binary data Jan. 20, 1998

  Recently Added Patents
Adjustable high precision surveying device
Interface circuit
Tree drain grate
Automatic pill dispenser
Method and apparatus for performing real time anomaly detection
Flood protection apparatus and container data center including the same
Systems and methods for automated institutional processing of payments
  Randomly Featured Patents
Base station control apparatus and base station control method
Axial thrust control for gearing
Method of producing solid dosage forms
Granular calcium hypochlorite treatment process
Bolt apparatus for calculating threaded bolt tension and method of manufacture
Process for preparation of porous hollow filament
Method of photolithographic critical dimension control by using reticle measurements in a control algorithm
Post office box system and apparatus for indicating post office box occupancy
Memory integrated circuit device providing improved operation speed at lower temperature