X-ray or gamma ray systems or devices – Specific application – Dental panoramic
Reexamination Certificate
2006-02-01
2008-01-15
Song, Hoon (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Dental panoramic
C378S197000
Reexamination Certificate
active
07319736
ABSTRACT:
An x-ray diagnostic apparatus and methods performs Real-Time Digital Radiography with particular application in dental x-ray imaging modalities, such as Orthopantomography, Scannography, Linear Tomography and Cephalography, by using a versatile and modular electronic unit, featuring ultra fast computation capability to serve diversified image sensor typology and scanning modality. In Digital Orthopantomography and Scannography, a plurality of tomographic images at different depths of the jaw can be generated, based on the pre-selection made by the user interface. The image processing unit utilizes for the tomo-synthesis of the diagnostic image an accurate and economic digital simulator of the radiographic film speed, including a digital frequency synthesizer fed with film cassette speed digital input and high resolution clock signal, ensuring accurate and reproducible phase continuity of the output frequency signal. It also introduces an automatic adaptation of the frame acquisition rate in frame transfer mode, based on the actual speed of the cassette unit. By this method the dynamic of the exposure signal is reduced, and a better optimization of the signal response of the x-ray detector is achieved.
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Rotondo Giuseppe
Venturino Gianfranco
Gendex Corporation
McNees Wallace & Nurick LLC
Song Hoon
LandOfFree
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