High performance data tuner for video systems
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United States of America Patent
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Mar 24, 1998
Grant Date -
N/A
app pub date -
May 25, 1994
filing date -
May 25, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tuner specifically adapted for recovery of a data signal injected into a video signal and then subsequently transmitted over a television channel or cable is disclosed. The tuner includes an IF local oscillator that is phase locked to the input signal sync pulses and has filters that are designed to pass through only the data bandwidth. In addition, the circuit has a low noise figure of about 1.5 dB and a third order intercept point of +35 dBm.
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