H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 1/03 (2006.01) H01L 27/146 (2006.01)
Patent
CA 2249977
An image sensor chip (24) has a plurality of phototransistors (PHT) for converting light reflected by a scanned object into analog image signals, a shift register (SR) and first field effect transistors (FET1) for taking the image signals sequentially out of respective output terminals of the plurality of the phototransistors (PHT), a first pad (1) for output of the image signals taken out serially by the shift register (SR) and the first field effect transistors (FET1), an operational amplifier (OP) capable of amplifying the image signals from the plurality of phototransistors (PHT), a second pad (2) connected to an input terminal of the operating amplifier (OP), and a third pad (3) connected to an output terminal of the operating amplifier (OP).
Cette microplaquette de capteur d'image (24) comporte de nombreux phototransistors (PHT) convertissant les rayons de lumière réfléchie en provenance d'un article à lire en signaux image à lecture analogique, un registre à décalage (SR) et un premier transistor à effet de champ (TEC1), qui, à la suite et en série, extrait des signaux image de lecture de chaque terminal de sortie des phototransistors. Elle comporte également un premier bloc (1) vers lequel sont envoyés les signaux image de lecture extraits en série par le registre (SR) transistor (TEC1), un amplificateur opérationnel (OP) à même d'amplifier les signaux image de lecture provenant des phototransistors (TEC1), un deuxième bloc (2) relié au terminal d'entrée de l'amplificateur (OP) et un troisième bloc (3) relié au terminal de sortie de l'amplificateur (OP).
Marks & Clerk
Rohm Co. Ltd.
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