BI-DIRECTIONAL AMPLIFIER DEVICE
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United States of America
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Apr 10, 2025
app pub date -
Oct 7, 2024
filing date -
Oct 7, 2024
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Abstract
There is provided a bi-directional amplifier device (10) configured for use in a broadband network comprising a first directional coupler (12) and a second directional coupler (14) connected together so as to create separate upstream and downstream paths (16, 18), an upstream amplifier element (24) located in the upstream signal path (16) and a downstream amplifier element (24′) located in the downstream signal path (18), wherein an isolator unit (40) comprising a digital processor element (56) is connected to an input (45) of the upstream amplifier element (24) and the isolator unit (40) is adapted to digitally filter the upstream signal to remove all downstream signal frequencies before amplification of the upstream signal takes place in the upstream amplifier element (24). The isolator unit (40) further comprises signal converters (58, 60) to convert analogue downstream and upstream signals into digital signals for processing by the digital processor element (56).
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