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DIFF Subgroup
H04N 25/71

Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors

Introduced: January 2023

Full Title

Circuitry of solid-state image sensors [SSIS]; Control thereof > SSIS architectures; Circuits associated therewith > Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 2023.

Child Classifications

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  • H04N 25/711 Time delay and integration [TDI] registers; TDI shift registers since 2023 IPC+CPC Available in IPC and CPC
  • H04N 25/713 Transfer or readout registers; Split readout registers or multiple readout registers since 2023 IPC+CPC Available in IPC and CPC
  • H04N 25/715 using frame interline transfer [FIT] since 2023 IPC+CPC Available in IPC and CPC
  • H04N 25/72 using frame transfer [FT] since 2023 IPC+CPC Available in IPC and CPC
  • H04N 25/73 using interline transfer [IT] since 2023 IPC+CPC Available in IPC and CPC
  • H04N 25/74 Circuitry for scanning or addressing the pixel array since 2023 IPC+CPC Available in IPC and CPC
  • H04N 25/745 CPC only CPC only
  • H04N 25/75 Circuitry for providing, modifying or processing image signals from the pixel array since 2023 IPC+CPC Available in IPC and CPC