Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2007-10-02
2007-10-02
Fan, Chieh M. (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S220000, C375S221000, C375S222000, C375S260000, C375S224000, C370S430000, C370S477000, C370S480000, C370S208000, C370S210000, C379S093010
Reexamination Certificate
active
10368431
ABSTRACT:
A device that transmits data using discrete multitone modulation includes a memory that stores intercarrier interference (ICI) information for each of the tones used to transmit data. The device also includes logic that receives signals transmitted from another device, estimates a noise value for each tone and adds the estimated noise to the ICI information to determine an effective noise value. The effective noise value may then be used to generate an effective signal-to-noise ratio (SNR). The effective SNR may then be used by a loading controller to determine bit loading information for each tone. The bit loading information may be transmitted to the other device, which may then use this information to identify the appropriate number of bits to load in each tone when transmitting data.
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Advanced Micro Devices , Inc.
Fan Chieh M.
Harrity & Snyder LLP
Lee Siu M.
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