Tuners – Tuner unit directly responsive to voltage and/or current... – Reactance tuning
Reexamination Certificate
2005-01-11
2005-01-11
Lee, Benny (Department: 2817)
Tuners
Tuner unit directly responsive to voltage and/or current...
Reactance tuning
C257S601000
Reexamination Certificate
active
06842094
ABSTRACT:
An electronic component has at least a first diode and a second diode that are capacitance diodes. The characteristic curve of the second diode has a fixed, known relationship to that of the first diode. For example, the first diode and the second diode can have an identical variation ratio, being the quotient of the maximum and minimum adjustable capacitances. These components are suitable for use in television tuners, for example in three-band tuners, where diodes having the same characteristic curve and coming from different components are arranged and connected in each sub-receiving unit. The integration of a plurality of diodes reduces the number of components required, and also the time and cost involved in grouping together diodes with good synchronization properties.
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Greenberg Laurence A.
Infineon - Technologies AG
Lee Benny
Mayback Gregory L.
Stemer Werner H.
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