EQUIPMENT HAVING NOISE ELIMINATION FUNCTION, PLL CIRCUIT AND VOLTAGE/CURRENT SOURCE
First Claim
1. Equipment having a noise elimination function, comprising:
- a signal generator configured to generate a signal in which a noise component other than thermal noise is discretely included;
a noise detecting unit configured to detect the noise component other than the thermal noise discretely included in output of the signal generator; and
a signal correcting unit configured to eliminate the noise component detected by the noise detecting unit from the output of the signal generator.
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Abstract
Equipment having a noise elimination function according to embodiments includes a signal generator configured to generate a signal in which a noise component other than thermal noise is discretely included, a noise detecting unit configured to detect the noise component other than the thermal noise discretely included in output of the signal generator, and a signal correcting unit configured to eliminate the noise component detected by the noise detecting unit from the output of the signal generator, and generation of noise other than thermal noise is detected, and a signal from which noise is reliably eliminated is generated.
39 Citations
16 Claims
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1. Equipment having a noise elimination function, comprising:
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a signal generator configured to generate a signal in which a noise component other than thermal noise is discretely included; a noise detecting unit configured to detect the noise component other than the thermal noise discretely included in output of the signal generator; and a signal correcting unit configured to eliminate the noise component detected by the noise detecting unit from the output of the signal generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A PLL circuit comprising:
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an oscillator configured to generate reference oscillation output in which a noise component other than thermal noise is discretely included; a noise detecting unit configured to detect a frequency error discretely included in the reference oscillation output as the noise component other than thermal noise; a feedback loop configured to receive the reference oscillation output from the oscillator and oscillation output based on the reference oscillation output, and correct a phase error between the reference oscillation output in which the frequency error is discretely included and the oscillation output to make the oscillation output converge on a frequency based on the reference oscillation output; and a signal correcting unit provided within the feedback loop and configured to correct the frequency error discretely included in the reference oscillation output based on a detection result of the noise detecting unit. - View Dependent Claims (10, 11, 12)
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13. A voltage/current source comprising:
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a reference voltage/reference current generating unit configured to generate a reference voltage or a reference current in which a noise component other than thermal noise is discretely included; a noise detecting unit configured to detect fluctuation discretely included in the reference voltage or the reference current as the noise component other than the thermal noise; and a signal correcting unit configured to eliminate the noise component detected by the noise detecting unit from output of the reference voltage/reference current generating unit. - View Dependent Claims (14, 15, 16)
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Specification