Multi-dimensional array of impedance elements

摘要

Circuitry formed of a two-dimensional regular array of capacitive elements 2 is coupled to decoding circuitry in the form of column decoder 8 and a row decoder 6. The decoders 8, 6 are used to select a start point and an end point within a sequence of selected capacitive elements to be connected in parallel following a horizontal raster scan arrangement. The selected capacitive elements may be used to generate an output voltage with a magnitude corresponding to the number of selected capacitive elements.

主权项

1. Circuitry comprising:
a multi-dimensional array of impedance elements; and decoder circuitry configured to decode a selection signal to select a variable number of impedance elements within said array for connection in parallel, wherein said impedance elements have a sequence and said selection signal selects a plurality of adjacent impedance elements within said sequence to be connected together in parallel as a selected sequence, and said selection signal selects a start point of said selected sequence and an end point of said selected sequence.