초록 ▼

Disclosed is an integrated circuit device or chip which digitally synthesizes human speech using a linear predictive filter. This device may be implemented using conventional processing techniques. For instance, when implemented in conventional P-channel MOS technology, the disclosed device or chip

Disclosed is an integrated circuit device or chip which digitally synthesizes human speech using a linear predictive filter. This device may be implemented using conventional processing techniques. For instance, when implemented in conventional P-channel MOS technology, the disclosed device or chip has an active area of approximately 45,000 square mils.

대표청구항 ▼

A digital filter speech synthesis circuit responsive to a plurality of digital values representing filter coefficients, said circuit comprising: (a) a voiced/unvoiced excitation generator for generating voiced and unvoiced excitation signals; (b) a first memory for storing said plurality of digital

A digital filter speech synthesis circuit responsive to a plurality of digital values representing filter coefficients, said circuit comprising: (a) a voiced/unvoiced excitation generator for generating voiced and unvoiced excitation signals; (b) a first memory for storing said plurality of digital values; (c) a multiplier circuit; (d) first circuit means for coupling said first memory and said multiplier circuit; (e) an arithmetic circuit having an input coupled to said multiplier circuit; (f) a second memory for storing data outputted from said arithmetic circuit; (g) second circuit means for selectively coupling the outputs of said second memory, said arithmetic circuit and said excitation signals to an input of said multiplier circuit; and (h) digital-to-analog converter means, coupled to said multipier circuit, for selectively converting the output of said multiplier circuit to analog signals representative of speech.