Modulator
First Claim
Patent Images
1. A modulator, comprising;
- vector code modulator means for converting input signals into selection signals according to said input signals, andselection means, responsive to said selection signals, for selecting and outputting one of a plurality of first signals, the selected first signal having the same frequency and different phase or amplitude as other ones of the plurality of first signals.
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Abstract
In a modulator, a linear converter inputs modulation signals and feed-back signals as an input vector and linearly converts the input vector. An encoder vector-quantizes the linearly converted vector and outputs the resultant signals as selection signals. A vector decoder decodes the encoded output into the plurality of feed-back signals. A selector selects and outputs one of signals with the same frequency and different phase or amplitude according to the selection signals.
95 Citations
22 Claims
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1. A modulator, comprising;
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vector code modulator means for converting input signals into selection signals according to said input signals, and selection means, responsive to said selection signals, for selecting and outputting one of a plurality of first signals, the selected first signal having the same frequency and different phase or amplitude as other ones of the plurality of first signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A convertor which is used for an electric power controller, the convertor comprising;
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vector code modulator means for converting an input signal into selection signals according to said input signal, said vector code modulator means comprising, a linear transformer for inputting input signals and feed-back signals as an input vector and for linearly transforming said input vector, an encoder for vector-quantizing the linearly transformed vector and for outputting an encoded output as selection signals, and a vector decoder for decoding the encoded output into said plurality of feed-back signals, and selection means, responsive to said selection signals, for selecting and outputting one of a plurality of first signals, the selected first signal having the same frequency and different phase or amplitude as other ones of the plurality of first signals. - View Dependent Claims (18)
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19. A modulator, comprising:
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a linear transformer for inputting modulation signals and feed-back signals as an input vector and for linearly transforming said input vector, an encoder for vector-quantization of said linearly transformed input vector and for outputting an encoded output as selection signals corresponding to different points on a phase plane, and a vector decoder for decoding said encoded output into said feed-back signals.
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20. A modulation method, comprising the steps of;
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converting input signals into selection signals according to said input signals using a vector code modulator, and selecting one of a plurality of first signals based on said selection signals, the selected first signal having the same frequency and different phase or amplitude as other ones of the plurality of first signals. - View Dependent Claims (21)
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22. A modulation method, comprising the steps of:
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converting modulation signals into selection signals according to said modulation signals, by inputting modulation signals and a plurality of feed-back signals as an input vector and linearly transforming said input vector, vector-quantizing said linearly transformed vector and outputting an encoded output as selection signals, and decoding said encoded output into said plurality of feedback signals; and selecting one of a plurality of first signals based on said selection signals, the selected first signal having the same frequency and different phase or amplitude as other ones of the plurality of first signals.
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Specification