Tuner comprising an IF filter with a controllable damping stage and receiver comprising a respective tuner
AssigneeThomson Licensing
InventorsKim Suan Pang, Vinod Menon
Life of this patent
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AssigneeThomson Licensing
InventorsKim Suan Pang, Vinod Menon
Estimating the term…
The tuner comprises an RF input for receiving a high frequency signal, a downconverter including a mixer for downconverting the high frequency signal, an IF filter coupled to an output of the mixer, an SAW filter coupled to an output of the IF filter and a gain-controlled IF amplifier coupled to an output of the SAW filter for providing an amplified IF signal for a subsequent demodulator. The IF filter includes a controllable damping stage which is in particular usable for improving the noise performance of the tuner. The tuner is designed in a preferred embodiment for reception of analog and digital television signals and the controllable damping stage provides a damping in case of reception of an analog television signal for improving a signal/noise ratio of the analog television signal. The damping stage comprises for example a switching stage utilizing one or several varactor diodes as damping elements.
A tuner comprising:
A receiver comprising:
Dependencies are inferred from the claim text.