Digital Glitch Sensor
AssigneeGoogle Inc.
InventorsPrathamesh Ramesh Save, Vinoth Kumar Deivasigamani
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Abstract
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing a dynamic frontend victimization process. In one aspect, a system comprises a digital glitch detector comprising a pair of shift feedback registers that are driven by a clock signal, and control logic that is configured to detect a glitch when an output of the pair of shift feedback registers becomes unsynchronized.
Claims22
A digital glitch detector comprising:
- one or more pairs of feedback shift registers that are driven by a clock signal;
- and
- control logic that is configured to detect a glitch when an output of the pair of feedback shift registers becomes unsynchronized.
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A method for detecting a glitch in a circuit, the method comprising:
- receiving a clock signal;
- processing the clock signal using one or more pairs of feedback shift registers;
- detecting a glitch of the clock signal based on whether an output of the pair of feedback shift registers becomes unsynchronized;
- and
- generating an alarm signal that indicates the glitch of the clock signal.
A system for detecting a digital glitch in a circuit, the system comprising
- a digital glitch sensor, wherein the digital glitch sensor is configured to repeatedly perform operations comprising:
- receiving a clock signal;
- processing the clock signal using one or more pairs of feedback shift registers;
- detecting a glitch of the clock signal based on whether an output of the pair of feedback shift registers becomes unsynchronized;
- and
- generating an alarm signal that indicates the glitch of the clock signal.
Dependencies are inferred from the claim text.