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    IMAGE CAPTURING APPARATUS AND CONTROL METHOD THEREOF, IMAGE PROCESSING APPARATUS, PROGRAM AND STORAGE MEDIUM
    4.
    发明公开
    IMAGE CAPTURING APPARATUS AND CONTROL METHOD THEREOF, IMAGE PROCESSING APPARATUS, PROGRAM AND STORAGE MEDIUM 审中-公开

    公开(公告)号：EP4418674A1

    公开(公告)日：2024-08-21

    申请号：EP24153392.6

    申请日：2024-01-23

    申请人： Canon Kabushiki Kaisha

    发明人： ISHIKAWA, Naoki

    IPC分类号： H04N25/589 ,  H04N25/671 ,  H04N25/771

    CPC分类号： H04N25/589 ,  H04N25/771 ,  H04N25/671 ,  H04N25/77

    摘要： An image capturing apparatus comprise a plurality of pixels and correction means. Each pixel includes: a photoelectric converter configured to photoelectrically convert incident light into charge; first and second charge holding sections configured to hold charge obtained by the photoelectric converter with first and second charge accumulation periods, respectively, and first and second floating diffusion portions configured to read out first and second signals corresponding to the charges held in the first and second charge holding sections. The correction means corrects signal levels of the first signal and the second signal based on a difference in capacitance between the first and second floating diffusion portions.

    IMAGE CAPTURING APPARATUS AND CONTROL METHOD THEREOF, IMAGE PROCESSING APPARATUS, PROGRAM AND STORAGE MEDIUM
    5.
    发明公开
    IMAGE CAPTURING APPARATUS AND CONTROL METHOD THEREOF, IMAGE PROCESSING APPARATUS, PROGRAM AND STORAGE MEDIUM 审中-公开

    公开(公告)号：EP4418673A1

    公开(公告)日：2024-08-21

    申请号：EP24153393.4

    申请日：2024-01-23

    申请人： Canon Kabushiki Kaisha

    发明人： ISHIKAWA, Naoki

    IPC分类号： H04N25/40 ,  H04N25/589 ,  H04N25/671 ,  H04N25/711

    CPC分类号： H04N25/589 ,  H04N25/671 ,  H04N25/711 ,  H04N25/40 ,  H04N25/00 ,  H04N25/77

    摘要： An image capturing apparatus comprises a plurality of pixels and correction means. Each pixel includes: a photoelectric converter; first and second charge holding sections to hold charges obtained with first and second charge accumulation periods in a first frame; third and fourth charge holding sections to hold charges obtained with the first and second charge accumulation periods in a second frame; a first floating diffusion portion for reading out charges held in the first and second charge holding sections in the second frame; and a second floating diffusion portion for reading out charges held in the third and fourth charge holding sections in the first frame. The correction means corrects a difference between signal levels of signals read out via the first and second floating diffusion portions based on a difference between capacitances of the first and second floating diffusion portions.

    CIRCUIT ELECTRONIQUE D'ACQUISITION D'IMAGE
    8.
    发明公开
    CIRCUIT ELECTRONIQUE D'ACQUISITION D'IMAGE 审中-公开

    公开(公告)号：EP4440136A1

    公开(公告)日：2024-10-02

    申请号：EP24165291.6

    申请日：2024-03-21

    申请人： STMICROELECTRONICS (GRENOBLE 2) SAS

    发明人： SIMONY, Laurent

    IPC分类号： H04N25/63 ,  H04N25/65 ,  H04N25/77 ,  H04N25/771

    CPC分类号： H04N25/65 ,  H04N25/771 ,  H04N25/77 ,  H04N25/671

    摘要： La présente description concerne un circuit électronique comprenant des cellules (210) d'acquisition d'image, chaque cellule comportant :
    - un photodétecteur (PD) relié à un premier noeud (SN) de la cellule ;
    - un transistor amplificateur (SF) ayant :
    sa grille connectée au premier noeud,
    un noeud de conduction relié à une sortie (250) de la cellule, et un noeud de commande d'une tension de grille arrière,
    le transistor amplificateur (SF) étant configuré pour que sa tension de seuil varie en fonction de la tension de grille arrière du transistor amplificateur (SF) ;
    le circuit comprenant au moins un circuit d'asservissement configuré pour ajuster une tension appliquée au noeud de commande de la tension de grille arrière du transistor amplificateur (SF) d'une des cellules en fonction d'une tension (VX) présente à la sortie de la cellule et d'une tension de référence (VREF).