Back to results
US 9,871,986 B2Granted
Counter, counting method, ad converter, solid-state imaging device, and electronic device
AssigneeSony Corporation
InventorYasuaki Hisamatsu
Life of this patent
Estimating the term…
Abstract
A counter configured to perform counting at both edges of an input clock to output an additional value or a subtraction value for a previous count value and a next count value includes a first latch circuit that latches the input clock, a second latch circuit that latches an output from the first latch circuit, a holding section that holds data of the 0th bit of a count value, and a correction section that performs count correction on data of the first and subsequent bits of the count value on the basis of an output of the second latch circuit.
Claims9
A solid-state imaging device, comprising:
- a pixel array circuit configured to output a pixel signal corresponding to incident light;
- and
- an Analog to Digital (AD) converter configured to AD convert the pixel signal output from the pixel array circuit,
- wherein the AD converter includes:
- a comparator circuit configured to compare a level of the pixel signal output from the pixel array circuit to a threshold value;
- and
- a counter configured to output one of an addition value or a subtraction value for a previous count value and a next count value,
- wherein the counter includes:
- a correction circuit configured to correct first data of count value based on the previous count value and the next count value.
6 more elements
Dependencies are inferred from the claim text.