Sony Semiconductor Solutions Corporation

Sony Corporation

Zvika Veig

Kei Nakagawa

Golan Zeituni

Ariel Ben Shem

A time-of-flight device comprises a pixel array including an array of pixel circuits, wherein a column of the array includes: a first pixel circuit including a first photodiode, a first capacitor and a second capacitor coupled to the first photodiode, and a second pixel circuit including a second photodiode, a third capacitor and a fourth capacitor coupled to the second photodiode, a first signal line coupled to the first capacitor, a second signal line coupled to the second capacitor, a third signal line coupled to the third capacitor, a fourth signal line coupled to the fourth capacitor, a first switch circuitry, a second switch circuitry, a first comparator coupled to the first signal line and the third signal line through the first switch circuitry, and a second comparator coupled to the second signal line and the fourth signal line through the second switch circuitry.

Readout circuit and method for time-of-flight image sensor

A latch-based parallel to serial readout circuitry includes latches connected to each other in series and to data inputs in parallel. The latches read in values from the data inputs in parallel, and then output the values serially. A readout control circuitry of the latch-based parallel to serial readout circuitry may cause the latches to read in the values in parallel by switching an active input connection of the latches to the data inputs and enabling the latches simultaneously. The readout control circuitry may cause the latches to readout the values serially by switching an active input connection of the latches to the output of a next latch and sequentially enabling the latches.

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Ness Ziona, Israel

Zvika Veig