A signal level indicator (204, 304) displays the magnitude of an input signal (421) by illuminating each of a number of five LEDs (314-318, 414-418) for an individual period of time. The number of LEDs to be illuminated and the individual period of time that each is to be illuminated varies with the...http://www.google.de/patents/US5486843?utm_source=gb-gplus-sharePatent US5486843 - Signal level indicator and associated method
