System and method for processing a common cable signal using a low-pass filter tap
AssigneeCSR Technology Inc.
InventorsKurt J. Richter, Angelika Schneider
Life of this patent
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Abstract
A method for processing an input signal is disclosed. The method includes receiving an input signal. The method also includes applying a first transfer function to the input signal to produce a first signal, wherein the first transfer function exhibits a high pass characteristic. The method further includes applying a second transfer function to the input signal to produce a second signal, the second transfer function exhibiting a low pass characteristic.
Claims28
A method for processing an input signal, comprising:
- receiving an input signal comprising in-band information and out-of-band information;
- applying a first transfer function to the in-band information to produce a first signal comprising in-band channel content, the first transfer function exhibiting a high pass characteristic;
- and
- applying a second transfer function to the out-of-band information to produce a second signal comprising out-of-band data information, the second transfer function exhibiting a low pass characteristic.
A low-pass filter tap, comprising:
- a resistor having a first resistor terminal and a second resistor terminal;
- and
- an inductor comprising a first inductor terminal coupled to the second resistor terminal and a second inductor terminal;
- wherein the low-pass filter tap receives an input signal and produces a first output signal comprising a first portion of the input signal comprising an out-of-band signal which includes data information corresponding to audio/video content present in the input signal and produces a second output signal comprising a second portion of the input signal comprising in-band data.
An apparatus, comprising:
- a low-pass filter tap comprising at least one resistor, at least one inductor, and at least one capacitor, the low-pass filter tap operable to apply a first transfer function to a first portion of an input signal to produce a first signal comprising content and further operable to apply a second transfer function to a second portion of the input signal to produce a second signal comprising out-of-band data information, wherein the first transfer function exhibits a high pass characteristic and the second transfer function exhibits a low pass characteristic;
- an integrated circuit, comprising:
- an in-band tuner operable to receive the first signal and to extract content from a selected channel of the second signal;
- and
- an amplifier operable to amplify the second signal and further operable to communicate the second signal to an out-of-band tuner.
A method for processing an input signal, comprising:
- receiving an input signal;
- applying a first transfer function to the input signal to produce a first signal comprising in-band channel content, the first transfer function exhibiting a high pass characteristic;
- and
- applying a second transfer function to the first signal to produce a second signal comprising out-of-band data information, the second transfer function exhibiting a low pass characteristic.
A method for processing an input signal, comprising:
- receiving an input signal;
- applying a first transfer function to the input signal to produce a first signal comprising out-of-band data information, the first transfer function exhibiting a low pass characteristic;
- and
- applying a second transfer function to the first signal to produce a second signal comprising in-band channel content, the second transfer function exhibiting a high pass characteristic.
Dependencies are inferred from the claim text.