Signal processing method and signal processing apparatus

Details Signal processing method and signal processing apparatus Signal processing method and signal processing apparatus

2007-06-18

2011-10-25

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical analog calculating computer

Particular function performed

Reexamination Certificate

active

08046402

ABSTRACT:
A signal processing method and apparatus reducing distortion using divided signals differing in only amplitude by weighting an input signal by first weights ki(i=1 to 4) to obtain divided signals, performing the same signal processing f(x) on the divided signals, weighting the signal processed divided signals by second weights l1(i=1 to 4), and adding the divided signals Vout1to Vout4weighted by the second weights. The first weights are k1=t, k2=−t, k3=1, k4=−1, while the second weights are l1=−1, l2=1, l3=t3, l4=−t3. Here, t=b/a (whereaandbare different positive integers).

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Japanese Office Action issued Oct. 12, 2010 in corresponding Japanese Patent Application 2006-169144.
Eisse Mensink et al., “Distortion Cancellation by Polyphase Multipath Circuits” IEEE Transactions on Circuits and Systems- I: Regular Papers, vol. 52, No. 9, Sep. 2005.

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