Abstract: A guided pairing method includes generating a singles list by detecting a plurality of singles at a plurality of detector elements in a detector array, the plurality of singles falling within a plurality of detection windows; for each detection window of the plurality of detection windows in the singles list having exactly two singles of the plurality of singles, determining the line of responses (LORs) for each of the two singles of the plurality of singles; for each detection window of the plurality of detection windows in the singles list having more than two singles of the plurality of singles, determining all coincidences possible based on the more than two singles; generating a weight for said each coincidence of the coincidences based on the determined LORs for said each of the two singles of the plurality of singles; and pairing the more than two singles based on the generated weight for said each coincidence of the coincidences.

Abstract: A power-on operation execution method and apparatus are provided. The method includes: starting a processor of the chip in response to the chip being connected to a host and a frequency of a first clock signal of the chip being switched to a stable state; receiving a reset signal transmitted from the host, the reset signal being transmitted in response to a frequency of a second clock signal of the host being switched to a stable state; and executing a power-on operation in response to the reset signal, a time point at which the frequency of the first clock signal is switched to the stable state being earlier than a time point at which the frequency of the second clock signal is switched to the stable state.