Abstract: Methods, systems, and devices for row hammer mitigation for stacked memory architectures are described. A semiconductor system, such as a memory system, may distribute operations for row hammer mitigation across circuitry of the semiconductor system. A first interface block of a first die of the semiconductor system may exchange signaling with a second interface block of a second die of the semiconductor system to perform row hammer mitigation operations. The second die may implement counters to track quantities of access operations associated with respective rows of memory cells of the second die. The second interface block may transmit alert signaling to the first interface block based on a value of a counter, and the first interface block may evaluate the alert signaling and transmit refresh signaling to the second interface block to perform one or more refresh operations.

Abstract: A medical imaging method is disclosed. The medical imaging method includes: controlling, based on an emission cycle, a ray generator to emit a periodic imaging signal; emitting, based on a reset cycle, a reset signal for resetting, when the ray generator stops emitting the periodic imaging signal, a ray detector, controlling the reset ray detector to receive the periodic imaging signal; and performing, based on the received periodic imaging signal, image reconstruction to generate a medical image. And a medical imaging device and an electronic apparatus are also disclosed.