Imaging device, imaging system, movable object, and signal processing device

An imaging device comprising:

• a plurality of pixels arranged to form a plurality of rows and a plurality of columns and each configured to output a signal in accordance with an incident light;
• a plurality of column signal processing units provided in association with the plurality of columns and each having an A/D conversion unit that performs A/D conversion on a signal output from the pixels arranged on a corresponding column;
• a plurality of memory units provided in association with the plurality of columns and each having a memory that holds digital data output from the column signal processing unit of a corresponding column;
• a transfer unit that sequentially outputs the digital data held in each of the plurality of memory units to a common output line;
• and
• a scrambling unit that performs a scrambling process on at least one of first digital data and second digital data that are sequentially output to the common output line.

An imaging device comprising:

• a plurality of pixels arranged to form a plurality of rows and a plurality of columns and each configured to output a signal in accordance with an incident light;
• a plurality of column signal processing units provided in association with the plurality of columns and each having an A/D conversion unit that performs A/D conversion on a signal output from the pixels arranged on a corresponding column;
• a plurality of memory units provided in association with the plurality of columns and each having a memory that holds digital data output from the column signal processing unit of a corresponding column;
• a plurality of output lines;
• a transfer unit that outputs the digital data held by the plurality of memory units to the plurality of output lines;
• and
• a bit value inversion unit including a unit that inverts a value of a bit of at least one of first digital data output from a first memory unit of the plurality of memory units and second digital data output from a second memory unit of the plurality of memory units.

A signal processing device comprising:

• a plurality of signal processing units each having an A/D conversion unit that performs A/D conversion on a signal based on an incident light;
• a plurality of memory units provided in association with the plurality of signal processing units and each having a memory that holds digital data output from corresponding one of the signal processing units;
• a transfer unit that sequentially outputs the digital data held in each of the plurality of memory units to a common output line;
• and
• a processing unit that inverts a value of a bit of at least one of first digital data and second digital data that are sequentially output to the common output line and/or performs a scrambling process on at least one of the first digital data and the second digital data.

A signal processing device comprising:

• a plurality of signal processing units each having an A/D conversion unit that performs A/D conversion on a signal based on an incident light;
• a plurality of memory units provided in association with the plurality of signal processing units and each having a memory that holds digital data output from corresponding one of the signal processing units;
• a plurality of output lines;
• a transfer unit that outputs the digital data held in the plurality of memory units to the plurality of output lines;
• and
• a bit value inversion unit including a unit that inverts a value of a bit of at least one of first digital data output from a first memory unit of the plurality of memory units and second digital data output from a second memory unit of the plurality of memory units.