H04N 25/778

Definition

Diese Klassifikationsstelle umfasst:

(Für diese Definition ist die deutsche Übersetzung noch nicht abgeschlossen)

Addressed sensors with pixel structures in which multiple photodiodes are provided. Respective transfer gates are used to transfer the charges accumulated in the photodiodes to a floating diffusion and the floating diffusion is connected to a gate of an amplifier transistor. The amplifier is implemented within the pixel array.

Beziehungen zu anderen Klassifikationsstellen

Passive pixel sensors comprising a shared amplifier per column are classified in group H04N 25/76.

Active pixels sensors comprising column parallel amplifiers are classified in group H04N 25/78.

Spezielle Klassifizierungsregeln

Where shared pixel structures are used for different applications, classification is also made in groups relating to the application. For example, when charges of the shared photodiodes are binned in the floating diffusion classification is also made in H04N 25/46. Where shared photodiodes have different sensitivities, classification is also made in H04N 25/585. Pixels specially adapted for focusing (e.g. phase difference pixel sets) are also classified in H04N 25/704.

H04N 25/778

Definition Statement

This place covers:

Addressed sensors with pixel structures in which multiple photodiodes are provided. Respective transfer gates are used to transfer the charges accumulated in the photodiodes to a floating diffusion and the floating diffusion is connected to a gate of an amplifier transistor. The amplifier is implemented within the pixel array.

Relationships with other classification places

Passive pixel sensors comprising a shared amplifier per column are classified in group H04N 25/76.

Active pixels sensors comprising column parallel amplifiers are classified in group H04N 25/78.

Special rules of classification

Where shared pixel structures are used for different applications, classification is also made in groups relating to the application. For example, when charges of the shared photodiodes are binned in the floating diffusion classification is also made in H04N 25/46. Where shared photodiodes have different sensitivities, classification is also made in H04N 25/585. Pixels specially adapted for focusing (e.g. phase difference pixel sets) are also classified in H04N 25/704.