| 摘要 |
<p>A receiver or preamplifier for differential signals, in particular electrocardiogram signals, includes n electrodes (25, 26) to provide at least one signal at an acceptable common mode rejection ratio, even if the subject to which the electrodes (25, 26) are applied has a different ground potential than the assigned monitor. This is achieved by two current sources (41, 42) which are controlled by a sum signal representing a sum of the electrode signals, said current sources (41, 42) injecting a corresponding current into the electrodes (25, 26). <IMAGE></p> |
