A Solid State Color Video Camera with a Horizontal Readout MOS Imager

Noda, Masaharu; Imaide, T.; Kinugasa, T.; Nishimura, R.

doi:10.1109/tce.1986.290051

Cited by 13 publications

(2 citation statements)

References 3 publications

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“…This method has some disadvantages such as: -large smear noise; -large pixel reset ( ) noise; -large fixed pattern noise. The transversal signal line (TSL-PPS) method was then developed and used to reduce these problems [18]- [20].…”

Section: A Passive Pixel Sensor (Pps)mentioning

confidence: 99%

Pixel Readout Circuit for X-Ray Imagers

2010

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This paper describes the per-pixel readout circuit of an X-ray imaging matrix and compares it to other solutions. The per-pixel readout circuit consists of a digital pixel sensor array constituted by a photodiode and a one-bit first-order sigma-delta A/D converter for each pixel. The output of each pixel is a digital bit stream, containing information about the intensity of the light that falls into its photodiode. The sigma-delta A/D converters use only 19 small size MOSFETs and one capacitor. In order to perform the X-ray detection, a scintillator crystal must be placed above each photodiode for converting the X-ray energy into visible light with wavelengths near to the quantum efficiency peak of the photodiodes. Then, the visible light is converted into electronic charges by each photodiode, which is part of digital pixel sensor. The comparison between the solution presented here and other solutions show that the implemented circuit is simpler and its resolution is similar or even superior.

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Section: A Passive Pixel Sensor (Pps)mentioning

confidence: 99%

Pixel Readout Circuit for X-Ray Imagers

2010

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“…As shown in Fig. 2.6 (b), a transversal-signal-line (TSL) technology was developed to alleviate the thermal noise limitation [34]. In this design, the large column parasitic capacitance found in the conventional PPS structure is replaced by a small sampling capacitance from the switching transistor.…”

Section: Passive-pixel-sensormentioning

confidence: 99%