Plug-in unit for cable modem
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Dec 18, 2003
app pub date -
Jun 17, 2002
filing date -
Jun 17, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention is directed to an `add-on` device for imparting voice/sound features to a standard cable modem. A proprietary communication protocol is disclosed, which allows the add-on device and the cable modem to communicate with each other in a way that mimics the behavior of an EMTA device. The add-on device has an outline that is adapted to the outline of the cable modem, and it is mechanically secured to the cable modem by utilizing the original HFC connection of the cable modem. In order to enhance the functionality of a cable modem, the cable modem is upgraded by replacing its original software package by an upgrade software package, thereby allowing logical communication between the upgraded cable modem and the add-on device, for exchanging composite data between them. The exchanged composite data allows the combination of the upgraded cable modem and the add-on device to impart to the cable modem the capability to exchange advanced-application packets, such as voice/sound/audio packets, with a remote station over the HFC cable network.
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