22-08-2013 дата публикации
Номер: US20130214954A1
A D/A converter according to the present invention includes a wave-form data-array memory means for memorizing a wave-form data array configured of a plurality of digital values, a wave-form output-format data memory means for memorizing wave-form output-format data designating a wave-form output period, a digital value output means for sequentially reading out the digital values for each wave-form output period from the wave-form data-array memory means and outputting the values, and a D/A conversion means for converting the digital values outputted from the digital value output means into analog-data values. 19-. (canceled)11. The D/A converter as recited in claim 10 ,wherein the wave-form data-array memory means is provided in a common memory which is writable from an external CPU device, and the wave-form data array is written into the wave-form data-array memory means by the CPU device.12. The D/A converter as recited in claim 10 , further comprising a wave-form data-array writing means for reading out the wave-form data array configured of a plurality of digital values from an external memory and writing it into the wave-form data-array memory means.13. The D/A converter as recited in claim 10 , further comprising a wave-form data-array creation means for creating a wave-form data array corresponding to at least any one of a sine wave claim 10 , a rectangular wave claim 10 , a triangular wave claim 10 , or a PWM claim 10 , and writing the array into the wave-form data-array memory means.14. The D/A converter as recited in claim 10 ,wherein the wave-form output-format data further designates the 5 number of times for externally output a wave form corresponding to the wave-form data array, or an analog-data value outputted to the outside after outputting the wave form.15. A peripheral device comprising:an input means; and{'claim-ref': {'@idref': 'CLM-00010', 'claim 10'}, 'a wave-form data-array support means for, based on an input from the input means, writing a ...
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