| 摘要 |
An apparatus and method for generating an electrical signal for use in biomedical applications, including two timing blocks (92, 94) for generating timing intervals T1 T7, an interconnection block (96) for combining these intervals into an output signal having predetermined relationships among the intervals, an output block (104) for transmitting the output signal to a loa d, and, optionally, a filter (102) for removing unwanted frequency components from the output signal and an adjustment block (100) for selecting from amon g a plurality of output signals with predetermined characteristics. The output is a repeating succession of a burst of rectangular waves, an equalizing pul se (if needed) to cancel net DC bias in applications for which it is not desire d, 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.
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