Patent ID: 11968465
Assignee: RENESAS ELECTRONICS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A solid-state sensing image device comprising:
a pixel array including a plurality of pixels arranged in a matrix form and a plurality of pixel signal lines connected to the plurality of pixels and receiving pixel signals supplied from the plurality of pixels;
a column-parallel A/D converting circuit connected to the plurality of pixel signal lines; and
a reference-voltage generating circuit generating a ramp-wave reference voltage that linearly changes in accordance with time passage,
wherein the column-parallel A/D converting circuit includes a first A/D converter,
wherein the first A/D converter includes:
a first input terminal connected to the pixel signal line;
a second input terminal receiving the reference voltage; and

an offset generating circuit connected to the first input terminal and generating an offset voltage for the first input terminal,
wherein the column-parallel A/D converting circuit includes a second A/D converter, and
wherein the second A/D converter includes:
a first input terminal connected to the pixel signal line but not connected to the offset generating circuit; and
a second input terminal receiving the reference voltage.