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US 5,495,554 AGranted
Analog wavelet transform circuitry
AssigneeZilog, Inc.
InventorsR. Timothy Edwards, Michael D. Godfrey
Life of this patent
Estimating the term…
Abstract
An analog circuit implementing a continuous wavelet transform forms a multiplicity of analog wavelet outputs. These analog wavelet outputs can be used for data compression. This analog circuit is estimated to be about one-hundredth (1/100) the size and power of a digital wavelet transform circuit. Additionally, the analog wavelet outputs of the analog wavelet transform chip is directly determined without the loss of information due to the digital sampling.
Claims11
An analog circuit comprising:
- modulating means for modulating a input signal with sinusoidal signals of different frequencies to form analog modulated signals, and
- a bank of analog filters connected to receive said analog modulated signals from said modulating means, said bank of analog filters producing a multiplicity of analog wavelet outputs, said bank of analog filters comprising substantially half-Gaussian shaped filters.
Dependencies are inferred from the claim text.