Wireless DOCSIS modem
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United States of America Patent
Stats
-
N/A
Issued Date -
Apr 21, 2005
app pub date -
Oct 8, 2004
filing date -
Oct 17, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A user-device combines a DOCSIS modem and an upconverter radio circuit to convert upstream traffic signals from the modem output from the 5-42 MHz range to the Lower 700 MHz Band. This upconverted signal is amplified and transmitted from an antenna, which may be located external to the device, or inside the device. A local oscillator provides the upconverter radio circuit with a periodic signal having a frequency that is sufficiently different from the combined signal from the upconverter so that filtering the periodic signal from the combined signal does not require as precise tuning as if the carrier frequencies of the periodic signal and the combined signal were closer in frequency. A diplex filter, with the antenna electrically on one side and the upconverter radio circuit and a downstream amplifier on the other, separates upstream and downstream traffic from a single antenna connection.
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Family
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Cited Art Landscape
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