Sound recording apparatus
AssigneeRohm Co., Ltd.
InventorHideaki Sugibayashi
Life of this patent
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Abstract
A sound recording apparatus for equalizing a sound signal before the sound signal is recorded onto a recording medium includes an amplifier to which the sound signal is inputted and a simulated inductor circuit connected to the amplifier. The simulated inductor circuit includes a buffer whose input side is coupled to a predetermined bias, a plurality of capacitors for connecting the output side of the buffer to the amplifier, and a switch for changing an equalizing characteristic by changing over a capacitor among the plurality of capacitors.
Claims2
A sound recording apparatus for equalizing a sound signal before the sound signal is recorded onto a recording medium, comprising:
- an amplifier to which the sound signal is inputted;
- and
- a simulated inductor circuit connected to the amplifier said simulated inductor circuit including a buffer whose input side is coupled to a predetermined bias;
- a plurality of capacitors for connecting the output side of the buffer to the amplifier;
- and switch means for changing an equalizing characteristic by changing a selected capacitance by switching among the plurality of capacitors.
A sound recording apparatus for equalizing a sound signal before the sound signal is recorded onto a recording medium, comprising:
- an amplifier to which the sound signal is inputted;
- and
- a simulated inductor circuit connected to the amplifier, the simulated inductor circuit including:
- a buffer whose input side is coupled to a predetermined bias;
- a series circuit consisting of a resistor and a capacitor for connecting the output side of the buffer to the amplifier;
- an impedance network connected parallel with the series circuit;
- and
- switch means for changing an equalizing characteristic by switching between the series circuit and the impedance network on the output side of the buffer.
Dependencies are inferred from the claim text.