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
Method to calibrate RF paths of an FHOP adaptive base station
Method and apparatus for soft information transfer between constituent processor circuits in a soft-value processing apparatus
Compositions and methods for inhibition of MMP13:MMP-substrate interactions
Method for manufacturing a magnet coil configuration using a slit band-shaped conductor
Permanent magnet rotor with flux concentrating pole pieces
Collaborative data redundancy for configuration tracking systems
Self-service administration of a database
  Randomly Featured Patents
Storage system, remote copy and management method therefor
Solid state scintillator and treatment therefor
Surface-mounted over-current protection device
Barrier strip cover and barrier strip for power distribution panels
Vibration-damping structural member
Method for examining bonding resistance
Fuel dispensing nozzle with vapor-proof seal
Method and apparatus for managing replication volumes
Light emitting diode package
Transformer overload and fault protection apparatus