Phono cartridge transmission line impedance matching system and method
OwnerBrian James Inouyeinventor
Life of this patent
Estimating the term…
Abstract
A phono cartridge transmission line impedance matching system is provided. The phono cartridge transmission line impedance matching system comprises a connecting port adapted for being connected to a signal line and a ground line of a phono cartridge transmission line. A capacitance switching circuit is connected to the signal line and the ground line in a parallel fashion. The capacitance switching circuit is adapted for selectively switching between different capacitances. A plurality of resistance switching circuits, connected with each other in a serial fashion, are connected to the signal line and the ground line in a parallel fashion. Each resistance switching circuit is adapted for selectively switching between different resistances.
Claims11
A phono cartridge transmission line impedance matching system comprising:
- a connecting port adapted for being connected to a signal line and a ground line of a phono cartridge transmission line;
- a capacitance switching circuit connected to the signal line and the ground line in a parallel fashion, the capacitance switching circuit for selectively switching between different capacitances;
- and,
- a plurality of resistance switching circuits connected with each other in a serial fashion and connected to the signal line and the ground line in a parallel fashion, each resistance switching circuit for selectively switching between different resistance-load values.
A phono cartridge transmission line impedance matching method comprising:
- providing a phono cartridge transmission line impedance matching system comprising:
- a connecting port connected to a signal line and a ground line of one of a left or a right phono cartridge transmission line;
- a capacitance switching circuit connected to the signal line and the ground line in a parallel fashion, the capacitance switching circuit for selectively switching between different capacitances;
- and,
- a plurality of resistance switching circuits connected with each other in a serial fashion and connected to the signal line and the ground line in a parallel fashion, each resistance switching circuit for selectively switching between different resistances;
- using the capacitance switching circuit and the plurality of resistance switching circuits, setting the capacitance value and the resistance value to respective values recommended by a manufacturer of the phono cartridge;
- using the phono cartridge, playing a record and listening to the record playback;
- and,
- using the plurality of resistance switching circuits, adjusting the resistance value while listening to the record playback until the phono cartridge transmission line impedance is matched.
Dependencies are inferred from the claim text.