发明名称 Cancellation of undesired portions of audio signals
摘要 In one embodiment, the present invention includes a method for determining when a step change occurs to a control value for a numerically controlled oscillator (NCO) providing a mixing signal, mixing the mixing signal with an input radio frequency (RF) signal to obtain an intermediate frequency (IF) signal and demodulating the IF signal into a demodulated signal, generating a correction value based on the step change, and applying the correction value to the demodulated signal. Other embodiments may be used to cancel other undesired signal portions, such as impulse spikes generated from the NCO change.
申请公布号 US8559570(B2) 申请公布日期 2013.10.15
申请号 US20050241419 申请日期 2005.09.30
申请人 TAIPALE DANA;SILICON LABORATORIES INC. 发明人 TAIPALE DANA
分类号 H03D1/04;H03D1/06;H03K5/01 主分类号 H03D1/04
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