Output circuit for SPAD
AssigneeSamsung Electronics Co., Ltd.
InventorsTze Ching Fung, Yibing Michelle Wang, Hongyu Wang, Eunchul Kang
Life of this patent
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Abstract
An output circuit for a single-photon avalanche diode. In some embodiments, a system includes: a first sensing element; a bus line; a first pull-down circuit; a first pull-up element; and a second pull-up element, the first pull-up element, the second pull-up element, and the first pull-down circuit being connected to the bus line, the first pull-down circuit being connected to the first sensing element and configured to be activated based on a signal from the first sensing element, the first pull-up element having a lower drive strength than the first pull-down circuit.
Claims18
A system, comprising:
- a first sensing element;
- a bus line;
- a first pull-down circuit;
- a first pull-up element;
- and
- a second pull-up element,
- the first pull-up element, the second pull-up element, and the first pull-down circuit being connected to the bus line,
- the first pull-down circuit being connected to the first sensing element and configured to be activated based on a signal from the first sensing element,
- the first pull-up element having a lower drive strength than the first pull-down circuit.
A system, comprising:
- a means for sensing;
- a bus line;
- a first pull-down circuit;
- a first pull-up element;
- and
- a second pull-up element,
- the first pull-up element, the second pull-up element, and the first pull-down circuit being connected to the bus line,
- the first pull-down circuit being connected to the means for sensing and configured to be activated based on a signal from the means for sensing,
- the first pull-up element having a lower drive strength than the first pull-down circuit.
Dependencies are inferred from the claim text.