Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2010-08-24
2011-12-06
Tweel, Jr., John A (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C375S219000, C375S220000
Reexamination Certificate
active
08072323
ABSTRACT:
The invention provides a power-line carrier communication apparatus including a transmission unit with a signal point mapping device for mapping a plurality of bit streams produced from transmission data, a wavelet inverse transforming device for modulating the respective sub-carriers by wavelet waveforms which are orthogonal to each other for producing temporal waveform series data, and a D/A converter for converting the temporal waveform series data into an analog temporal waveform series signal; and a reception unit with an A/D converter for obtaining sampling-series waveform data from a power-line communication signal, a wavelet transforming device for wavelet-transforming the sampling-series waveform data into signal point data of the respective sub-carriers, and a symbol judging device for judging bit streams mapped by the signal point mapping device by inverse-mapping a plurality of these signal point data, and for synthesizing the judged bit streams with each other as a reception data series.
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Kodama Nobutaka
Koga Hisao
Dickinson Wright PLLC
Panasonic Corporation
Tweel, Jr. John A
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