Modem with exclusively selectable echo canceller and high pass filter for near-end signal removal
First Claim
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1. A communication apparatus, comprising:
- a modem coupled to a subscriber line carrying a composite signal, the composite signal including a near-end transmitted signal and a far-end transmitted signal, the modem comprising;
a high pass filter; and
an echo canceller, wherein the composite signal is exclusively provided to a selected one of the echo canceller and the high pass filter for removing the near-end transmitted signal from the composite signal.
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Abstract
A communication apparatus includes a modem coupled to a subscriber line carrying a composite signal. The composite signal includes a near-end transmitted signal and a far-end transmitted signal. The modem includes a high pass filter and an echo canceller. The composite signal is exclusively provided to a selected one of the echo canceller and the high pass filter to remove a near-end transmitted signal from the composite signal.
22 Citations
10 Claims
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1. A communication apparatus, comprising:
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a modem coupled to a subscriber line carrying a composite signal, the composite signal including a near-end transmitted signal and a far-end transmitted signal, the modem comprising;
a high pass filter; and
an echo canceller, wherein the composite signal is exclusively provided to a selected one of the echo canceller and the high pass filter for removing the near-end transmitted signal from the composite signal. - View Dependent Claims (2, 3, 4, 5)
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6. A method of data communication, comprising:
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(a) providing a subscriber line carrying a near-end transmitted signal and a far-end transmitted signal as a composite signal; and
(b) providing the composite signal to an exclusively selected one of an echo canceller and a high pass filter for removal of the near-end transmitted signal. - View Dependent Claims (7, 8, 9, 10)
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Specification