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Method and arrangement of echo elimination in digital telecommunications system - Patent 5313498 (2999 words) |
 | The adder 24b of the acoustic echo canceler 24 is arranged to subtract an estimated echo 24c (viz., the output of the ADF 24a) from the output of the A/D converter 20b. |
| It is understood from the foregoing that the ADF 22a of FIG. |
| It is an object of the present invention to provide an arrangement and method of echo cancellation in digital telecommunications system which is able to avoid the undesirable increase in the size of the adaptive digital filter as in the prior art. |
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Digital cable - Wikipedia, the free encyclopedia (362 words) |
| Digital cable is a term for a type of cable digital television that delivers more channels than possible with analog cable by using digital video compression. |
| Digital cable also enables two-way communication, enabling services such as the ability to purchase pay-per-view programming without the use of a phone line. |
| Digital cable signals are often worse than analog signals, due to compression artifacts in both the image and sound. |
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