Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Coding technique in discrete multi-tone (DMT) based communications systems










Image Number 10 for United States Patent #6580761.

In an Asymmetric Digital Subscriber Loop (ADSL) Discrete Multi-Tone (DMT) system, ADSL DMT equipment includes an encoder that operates on a DMT input signal representing .function. symbols/sec. to generate, for transmission, a DMT output signal representing N.function. symbols/sec., where N>1, and where each symbol from the DMT input signal is generated in a redundant form in the DMT output signal. In one example of a redundant form, each symbol from the DMT input signal is repeated in N consecutive symbol intervals in the DMT output signal. In another example of a redundant form, every N DMT input symbol values are transmitted in 2N consecutive symbol intervals in the DMT output signal. These 2N consecutive symbols in the DMT output signal include 1) N symbols whose values equal the respective N DMT input symbol values and 2) N symbols whose values are a function of the respective N DMT input symbol values.








 
 
  Recently Added Patents
Linear book scanner
Expression of dirigent gene EG261 and its orthologs and paralogs enhances pathogen resistance in plants
RPM Controlled Wind Power Generation System
System, method and apparatus for pausing multi-channel broadcasts
Liquid low temperature injection molding process
Method for fabrication of a semiconductor device and structure
Elegant solutions for fingerprint image enhancement
  Randomly Featured Patents
Wedge-receiving cavity for an anchor body of a post-tension anchor system
Print data processing method and apparatus
Exposure optical apparatus
Vehicle door shelter
Fuel injector with an integrated pressure booster
Method of making a stainless steel vacuum bottle with a silver mirrored surface
Refrigerator and method for controlling temperature thereof by controlling cool air discharge direction
Tilt switch with increased angular range of conduction and enhanced differential characteristics
Method of managing time-based differential snapshot
Digital-to-analog converter circuits including independently sized reference current source transistors and methods of operating same