H - Electricity – 03 – F
Patent
H - Electricity
03
F
H03F 1/42 (2006.01) H03F 1/30 (2006.01) H03F 1/32 (2006.01) H03F 3/19 (2006.01) H03F 3/62 (2006.01) H03G 3/30 (2006.01) H04N 7/10 (2006.01) H04N 7/16 (2006.01)
Patent
CA 2257617
A broadband amplifier has a microcontroller having tables the entries of which correspond to desired variable slope and gain characteristics of the amplifier. The entries in the tables are derived from known temperature characteristics of a specific amplifier/cable combination; multiple tables are used to support multiple different configurations. The microcontroller retrieves values from the tables based on temperature data supplied thereto via a serial bus; these values are output to digital-to-analog converters which generate slope and gain control signals to control slope and gain compensation circuits in a PIN diode attenuator in the amplifier.
Blount Richard J. Jr.
Underkofler Leon M.
Macrae & Co.
Scientific-Atlanta Inc.
Thomas & Betts International Inc.
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