Digital signal processing apparatus
First Claim
1. A digital signal processing apparatus for converting an analog signal to a digital signal and digitally processing the digital signal, the apparatus comprising:
- a modulation part for performing pulse density modulation on the analog signal and outputting a pulse density modulation signal;
a memory for storing a conversion program for converting the pulse density modulation signal to the pulse code modulation data; and
a CPU for receiving the pulse density modulation signal from the modulation part and converting the received pulse density modulation signal to pulse code modulation data according to the conversion program stored in the memory.
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Abstract
A digital signal processing apparatus for converting an analog signal to a digital signal and digitally processing the digital signal is disclosed. The apparatus includes a modulation part for performing pulse density modulation on the analog signal and outputting a pulse density modulation signal, a memory for storing a conversion program for converting the pulse density modulation signal to pulse code modulation data, and a CPU for receiving the pulse density modulation signal from the modulation part and converting the received pulse density modulation signal to pulse code modulation data according to the conversion program stored in the memory.
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Citations
7 Claims
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1. A digital signal processing apparatus for converting an analog signal to a digital signal and digitally processing the digital signal, the apparatus comprising:
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a modulation part for performing pulse density modulation on the analog signal and outputting a pulse density modulation signal; a memory for storing a conversion program for converting the pulse density modulation signal to the pulse code modulation data; and a CPU for receiving the pulse density modulation signal from the modulation part and converting the received pulse density modulation signal to pulse code modulation data according to the conversion program stored in the memory. - View Dependent Claims (2, 3, 4, 5, 6)
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7. The digital signal processing apparatus as claimed in 3, wherein the detection part, the modulation part, the memory, and the CPU are mounted on the same semiconductor integrated circuit apparatus.
Specification