| 摘要 |
A hearing aid comprises a frequency-shift-keying (FSK) receiver comprising a first amplifier stage, a limiter stage and a plurality of phase detection stages. Each phase detection stage comprises a local oscillator, a mixer stage, a filter stage, and a comparator stage, respectively. The number of phase detection stages is greater than two. The output of each comparator stage is commonly connected to the input of a look-up table. The invention also provides an FSK receiver for use in a hearing aid and a method for processing an FSK signal. |
