MULTI-LEVEL AMPLITUDE SIGNALING RECEIVER
First Claim
1. A receiver circuit for multi-level amplitude signaling, the receiver circuit comprising:
- a peak detector for detecting a peak voltage of a multi-level amplitude signal which includes at least three amplitude levels for each symbol period;
a reference voltage generator for generating a plurality of reference voltages at least partially in response to the peak voltage; and
a comparator circuit which uses the plurality of reference voltages to detect an amplitude level of the multi-level amplitude signal.
1 Assignment
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Accused Products
Abstract
One embodiment relates to a receiver circuit for multi-level amplitude signaling which includes at least three amplitude levels for each symbol period. The receiver circuit includes a peak detector, a reference voltage generator, and a comparator circuit. The peak detector is arranged to detect a peak voltage of the multi-level amplitude signal, and the reference voltage generator uses the peak voltage to generate multiple reference voltages. The comparator circuit uses the multiple reference voltages to detect an amplitude level of the multi-level amplitude signal. Other embodiments and features are also disclosed.
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Citations
15 Claims
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1. A receiver circuit for multi-level amplitude signaling, the receiver circuit comprising:
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a peak detector for detecting a peak voltage of a multi-level amplitude signal which includes at least three amplitude levels for each symbol period; a reference voltage generator for generating a plurality of reference voltages at least partially in response to the peak voltage; and a comparator circuit which uses the plurality of reference voltages to detect an amplitude level of the multi-level amplitude signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of receiving a multi-level amplitude signal, the method comprising:
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detecting a peak voltage of a multi-level amplitude signal which includes at least three amplitude levels for each symbol period; generating a plurality of reference voltages at least partially responsive to the peak voltage; and comparing the multi-level amplitude signal against the plurality of reference voltages to detect an amplitude level. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An integrated circuit comprising:
a pulse amplitude modulation receiver which includes a peak detector arranged to detect a peak voltage of a transmitted pulse amplitude modulation signal which includes at least three amplitude levels for each symbol period, a reference voltage generator arranged to generate a plurality of reference voltages which depend on the peak voltage, and a comparator circuit arranged to compare the pulse amplitude modulation signal against the plurality of reference voltages to detect an amplitude level. - View Dependent Claims (15)
Specification