Amplification apparatus
AssigneeOnkyo Corporation
InventorsShogo Sugihara, Tadaharu Sunaga, Norio Etoh
Life of this patent
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Abstract
An amplification apparatus comprises: an amplifier circuit that amplifies an input audio signal and outputs an output audio signal; a first signal level determining unit that determines whether or not a signal level of the output audio signal outputted from the amplifier circuit is lower than a silence determination reference value; and a power-supply control unit that shifts the amplification apparatus from a power-on state to a power-off state, when it is determined that the signal level of the output audio signal outputted from the amplifier circuit is lower than the silence determination reference value.
Claims8
An amplification apparatus comprising:
- an amplifier circuit that amplifies an input audio signal and outputs an output audio signal;
- a first signal level determining unit that determines whether or not a signal level of the output audio signal outputted from the amplifier circuit is lower than a silence determination reference value;
- a power-supply control unit that shifts the amplification apparatus from a power-on state to a power-off state, when it is determined that the signal level of the output audio signal outputted from the amplifier circuit is lower than the silence determination reference value;
- a volume adjusting unit that adjusts a signal level of the input audio signal in accordance with a set volume value to supply to the amplifier circuit;
- a volume value setting unit that sets the volume value of the volume adjusting unit in accordance with a user operation;
- a silence determination reference value managing unit that manages the volume value and the silence determination reference value in advance while associating them with each other;
- and
- a silence determination reference value deciding unit that reads the silence determination reference value corresponding to the volume value set by the volume value setting unit from the silence determination reference value managing unit to decide as the silence determination reference value.
An amplification apparatus comprising:
- an amplifier circuit that amplifies an input audio signal and outputs an output audio signal;
- a first signal level determining unit that determines whether or not a signal level of the output audio signal outputted from the amplifier circuit is lower than a silence determination reference value;
- a power-supply control unit that shifts the amplification apparatus from a power-on state to a power-off state, when it is determined that the signal level of the output audio signal outputted from the amplifier circuit is lower than the silence determination reference value;
- a volume adjusting unit that adjusts a signal level of the input audio signal in accordance with a set volume value to supply to the amplifier circuit;
- a volume value setting unit that sets the volume value of the volume adjusting unit in accordance with a user operation;
- a silence determination reference value managing unit that manages the volume value and the silence determination reference value in advance while associating them with each other;
- and
- a silence determination reference value deciding unit that reads the silence determination reference value corresponding to the volume value set by the volume value setting unit from the silence determination reference value managing unit to decide as the silence determination reference value,
- wherein the silence determination reference value managing unit manages the volume value and the silence determination reference value while associating them with each other so that as the volume value becomes larger, the silence determination reference value becomes larger.
Dependencies are inferred from the claim text.