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US 11,316,527 B2Granted
AD converter
AssigneeCanon Kabushiki Kaisha
InventorKoji Ishibashi
Life of this patent
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Abstract
An analog to digital converter is provided and includes column processing units that convert analog signal to digital signal. One or more counters count time of analog to digital conversion and one or more comparators compares the voltage of reference signal and analog signal from neuromorphic device. One or more generators generates the reference signal for the comparator.
Claims9
An analog to digital converter which converts an analog signal output from a neuromorphic device comprising:
- a counter counting time by a down counting method for analog to digital conversion;
- a comparator which compares a voltage of a reference signal which is related to an inverse activation function for a neural network of the neuromorphic device and decreases over time with the analog signal output from the neuromorphic device and outputs a comparison result to the counter;
- and
- a generator which generates the reference signal for the comparator,
- wherein the counter keeps counting time until receiving the comparison result and generates a digital signal according to the counted time.
2 more elements
Dependencies are inferred from the claim text.