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
Phase-change memory device having multiple diodes
Aggregating completion messages in a sideband interface
Single-electron detection method and apparatus for solid-state intensity image sensors with a charge splitting device
Plants and seeds of hybrid corn variety CH817100
Method and system for processing dictated information
Audio processing in a multi-participant conference
Medical imaging probe with rotary encoder
  Randomly Featured Patents
Focus detecting apparatus
Water powered auxiliary sump pump
Techniques for performing incremental data updates
Range hood
Treatment of municipal waste ash
Fixture for ski edge finishing tool
Method for darkness correction of trapped pixels
Embedded antenna and semiconductor die on a substrate in a laminate package
Method to fabricate a flash memory cell with a planar stacked gate
Printing system having at least three printer devices as well as method for the operation of such a printing system