| 摘要 |
PURPOSE:To obtain desired filtering characteristics only by changing memory contents of a memory circuit with an arithmetic part and converter both fixed by performing general conversion of an analog signal as it is by using a capacitor array for a matrix arithmetic unit, and then by carrying out multiplication by a coefficient suitable to a purpose. CONSTITUTION:Capacitors C11-C1n have capacitors at a ratio set by making an input signal correspond to a matrix. Integrators 2 are provided corresponding to capacitors C11-C1n. Sample holding circuit 3 is provided in order to share an integral A/D converter among several capacitors and an integrator output after a (n)- series of operations is held there for a next one period. The output of this circuit is sequentially selected by switches R1-Rn and the intergral A/D converter multiplies the output by coefficients K1-Kn. |
