Patent ID: 11906354
Assignee: AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 0:
1. An optical detector, comprising:
an array of cells; and
a recharge circuit configured to apply a recharge signal to groups of cells of the array;
wherein each cell includes:
a single-photon avalanche diode (SPAD) reverse-biased above a breakdown voltage of the SPAD;
trigger logic connected to the SPAD, and configured to output a trigger signal indicating whether the SPAD is in breakdown; and
a conditional recharge circuit configured to recharge the SPAD conditional upon both (i) the recharge circuit applying the recharge signal to the cell and (ii) the trigger signal output by the trigger logic of the cell indicating the SPAD of the cell is in breakdown.