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
Display screen or portion thereof with animated graphical user interface
Image pickup device with a plurality of pixels and an AD conversion circuit
Triazole derivatives as ghrelin analogue ligands of growth hormone secretagogue receptors
Driving apparatus having an optical sensor and a thermal sensor for thermal and aging compensation of backlight module and driving method of backlight module
Negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same
Dispensing of restricted goods
Spin transition material
  Randomly Featured Patents
Rotary dipper stick
Mutated immunoglobulin-binding protein
Method and system of session media negotiation
Attraction type magnetic levitating apparatus
Driving apparatus for plasma display panel
Writing instrument
Method for pulse shape regulation and discrimination in a nuclear spectroscopy system
Spiral heat exchanger
Low profile package for plural semiconductor dies
Envelope closure seal and method