AN FSK RECEIVER FOR A HEARING AID AND A METHOD FOR PROCESSING AN FSK SIGNAL

摘要

A hearing aid comprises a frequency-shift-keying (FSK) receiver comprising afirst amplifier stage, a limiter stage and a plurality of phase detectionstages. Eachphase detection stage comprises a local oscillator, a mixer stage, a filterstage, anda comparator stage, respectively. The number of phase detection stages isgreaterthan two. The output of each comparator stage is commonly connected to theinput of a look-up table. The invention also provides an FSK receiver for usein ahearing aid and a method for processing an FSK signal.