RECEPTION CIRCUIT, RECEPTION METHOD, AND SIGNAL TRANSFER SYSTEM
First Claim
Patent Images
1. A reception circuit comprising:
- an AD converter;
an equalization circuit that equalizes an output of the AD converter;
a determination circuit to which error information is input from the equalization circuit; and
a controller that adjusts at least one of resolution and voltage range of the AD converter, whereinthe determination circuit outputs a control signal to adjust at least one of resolution and voltage range to the controller based on the error information.
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Abstract
A reception circuit includes: an AD converter; an equalization circuit that equalizes an output of the AD converter; a determination circuit to which error information is input from the equalization circuit; and a controller that adjusts at least one of resolution and voltage range of the AD converter, in the circuit the determination circuit outputs a control signal to adjust at least one of resolution and voltage range to the controller based on the error information.
22 Citations
20 Claims
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1. A reception circuit comprising:
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an AD converter; an equalization circuit that equalizes an output of the AD converter; a determination circuit to which error information is input from the equalization circuit; and a controller that adjusts at least one of resolution and voltage range of the AD converter, wherein the determination circuit outputs a control signal to adjust at least one of resolution and voltage range to the controller based on the error information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of controlling a circuit having an AD converter and an equalization circuit, comprising:
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making a two-value determination of an output of the AD converter based on a reference value; calculating an error between a value determined by the two-value determination and the output; comparing the calculated error value with a reference value; and controlling at least one of the resolution and voltage range of the AD converter based on the result of the comparison.
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20. A signal transfer system comprising:
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a transmission circuit that transmits a signal; a transfer line that is connected to the transmission circuit and which transfers the signal; and a reception circuit that is connected to the transfer line and which receives the transferred signal, wherein the reception circuit comprises; an AD converter that converts the received signal into a multi-bit digital signal; an equalization circuit that equalizes the digital signal output from the AD converter and generates information about a reproduction state indicative of the reproduction state of the received signal; and an adjustment circuit that adjusts at least one of an input quantization range and resolution of the AD converter based on the information about the reproduction state from the equalization circuit.
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Specification