| 摘要 |
An apparatus and method for generating an electrical signal for use in biomedical applications, including two timing blocks for generating timing intervals T 1- T 7' an interconnection block for combining these intervals into an output signal having predetermined relationships among the intervals, an output block for transmitting the output signal to a load, and, optionally, a filter for removing unwanted frequency components from the output signal and an adjustment block for selecting from among a plurality of output signals with predetermined characteristics. The output is a repeating succession of a burst of rectangular waves, an equalizing pulse (if needed) to cancel net DC bias in applications for which it is not desired, and a rest period of no signal. In applications where net DC bias is desired, the equalizing pulse may be omitted and the remaining signal features superimposed on a DC potential. |
