| 摘要 |
PCT No. PCT/DE95/01227 Sec. 371 Date May 13, 1997 Sec. 102(e) Date May 13, 1997 PCT Filed Sep. 8, 1995 PCT Pub. No. WO96/10290 PCT Pub. Date Apr. 4, 1996An amplitude demodulator for demodulating a quadrature-amplitude modulated stereo signal for radio receivers, where a digital intermediate-frequency signal is constructed from a received signal, the intermediate-frequency signal is converted into a baseband, creating two orthogonal components thereby, a magnitude signal and a phase signal are derived from the orthogonal components, a tangent is constructed from the phase signal, and the tangent is multiplied by the magnitude signal to create a stereo difference signal.
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