US 12,212,869 B1
High-speed CMOS pixel detector
Le Xiao, Wuhan (CN); Xiangming Sun, Wuhan (CN); and Bihui You, Wuhan (CN)
Assigned to Central China Normal University, Wuhan (CN)
Filed by Central China Normal University, Hubei (CN)
Filed on Jul. 3, 2024, as Appl. No. 18/762,876.
Claims priority of application No. 202310813965.1 (CN), filed on Jul. 5, 2023.
Int. Cl. H04N 25/767 (2023.01); H04N 25/78 (2023.01)
CPC H04N 25/767 (2023.01) [H04N 25/78 (2023.01)] 8 Claims
OG exemplary drawing
 
1. A high-speed complementary metal-oxide-semiconductor (CMOS) pixel detector, comprising:
a plurality of super pixel modules, wherein each super pixel module comprises an array of N×M super pixel cells and a digital readout logic circuit connected to the N×M super pixel cells, and data is output between super pixel modules via asynchronous control logic; and
peripheral modules, comprising at least an end of column (EoC) module, a peripheral readout module, and a peripheral data transmission module connected in sequence, wherein the EoC module is connected to the super pixel modules;
wherein readout nodes of the super pixel modules communicate locally with each other, and propagate data downward in columns through registers in the readout nodes, during data transmission, a node-based readout architecture having a hierarchical structure with at least two layers is set, and the hierarchical structure with at least two layers comprises:
a first node layer, comprising readout nodes of at least two super pixel modules, wherein an output from the first node layer is as a first node layer output; and
a second node layer, comprising a plurality of first node layer outputs:
wherein the readout node comprises at least an asynchronous control logic circuit, comprising:
a plurality of registers, configured to store data output by a multiplexer:
the multiplexer, configured to select data generated by super pixel cells in a node or data from super pixel cells in a previous node for output; and
an arbiter, configured to control a selection of the multiplexer.