Luxen Technologies Inc.

Seoul, South Korea

Luxen Technologies Inc.

Seoul, South Korea
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Patent
Luxen Technologies Inc. and Soh | Date: 2013-10-02

Embodiments of the present invention provide a computer-implemented method for setting an amplification gain of a pixel array. Specifically, among other things, embodiments of the present invention provide a computer-implemented infrastructure comprising: receiving an electrical signal from an ionizing radiation source at one or more pixel sensors of a plurality of pixel sensors within the pixel array; setting an amplification gain of the electrical signal at a charge sensitive amplifier by turning a switch on or off, wherein the switch connects the at least one or more pixel sensors to a respective capacitor; scanning the pixel array to determine the ionizing radiation source intensity; and generating a gain control signal based on the ionizing radiation source intensity.


Patent
Luxen Technologies Inc. and Soh | Date: 2014-02-19

A sampling circuit for dynamic imaging is provided. Specifically, embodiments of the present invention relate to a readout integrated circuit (ROIC) for dynamic imaging and a related image sensor. In one embodiment of the present invention, a sampling circuit is provided that comprises: an amplifier circuit, which amplifies charge signals generated at photo diodes and converts them to voltage signals; a filter circuit (optional) that receives and filters the voltage signals to yield a filtered signal; a sampling circuit, which samples the voltage signals and outputs a sampled signal in accordance with a sampling control signal; and a digital converter, which converts the sampled signal into a digital format and outputs a digital signal.


Patent
Luxen Technologies Inc. and Soh | Date: 2013-10-02

Embodiments of the present invention provide a computer-implemented method for determining an amplification gain for an X-ray image sensor module. Specifically, among other things, embodiments of the present invention provide a computer-implemented infrastructure comprising: capturing an electrical signal by a pixel sensor; and determining an amplification gain of the electrical signal at a charge sensitive amplifier by turning a switch on or off, wherein the switch connects the pixel sensor to a capacitor.


Embodiments of the present invention provide an approach for improving overall chip speed by providing one or more sampling circuits in a readout integrated circuit so that signal processing and signal reading out operations may occur simultaneously instead of successively.


Patent
Luxen Technologies Inc. and Soh | Date: 2014-02-19

An approach for a sampling circuit to reduce noise in signals (e.g., as received from photo diodes or the like) is provided. In one embodiment of the present invention, there is a sampling circuit comprising: an amplifier, which amplifies charge signals generated at photo diodes and converts them to voltage signals; the first sample and hold circuit, which samples the voltage signal and charges the first capacitor according to the first switching signal, and outputs the stored charge as a reset signal based on a readout signal; the second sample and hold circuit, which samples the signals and charges the second capacitor according to the second switching signal that is non-overlapping to the first switching signal, and outputs the stored charge as a reset signal based on the readout signal; a resistor that acts as a low-pass filter placed in between the first and the second capacitors common nodes.


Patent
Luxen Technologies Inc. | Date: 2012-03-28

Embodiments of the present invention provide a computer-implemented method for setting an amplification gain of a pixel array. Specifically, among other things, embodiments of the present invention provide a computer-implemented infrastructure comprising: receiving an electrical signal from an ionizing radiation source at one or more pixel sensors of a plurality of pixel sensors within the pixel array; setting an amplification gain of the electrical signal at a charge sensitive amplifier by turning a switch on or off, wherein the switch connects the at least one or more pixel sensors to a respective capacitor; scanning the pixel array to determine the ionizing radiation source intensity; and generating a gain control signal based on the ionizing radiation source intensity.


Patent
Luxen Technologies Inc. | Date: 2012-03-28

Embodiments of the present invention provide a computer-implemented method for determining an amplification gain for an X-ray image sensor module. Specifically, among other things, embodiments of the present invention provide a computer-implemented infrastructure comprising: capturing an electrical signal by a pixel sensor; and determining an amplification gain of the electrical signal at a charge sensitive amplifier by turning a switch on or off, wherein the switch connects the pixel sensor to a capacitor.


Embodiments of the present invention provide an approach for improving overall chip speed by providing one or more sampling circuits in an ROIC so that signal processing and signal reading out operations may occur simultaneously instead of successively.


Patent
Luxen Technologies Inc. | Date: 2012-08-14

A sampling circuit for dynamic imaging is provided. Specifically, embodiments of the present invention relate to a readout integrated circuit (ROIC) for dynamic imaging and a related image sensor. In one embodiment of the present invention, a sampling circuit is provided that comprises: an amplifier circuit, which amplifies charge signals generated at photo diodes and converts them to voltage signals; a filter circuit (optional) that receives and filters the voltage signals to yield a filtered signal; a sampling circuit, which samples the voltage signals and outputs a sampled signal in accordance with a sampling control signal; and a digital converter, which converts the sampled signal into a digital format and outputs a digital signal.


Patent
Luxen Technologies Inc. | Date: 2012-08-14

An approach for a sampling circuit to reduce noise in signals (e.g., as received from photo diodes or the like) is provided. In one embodiment of the present invention, there is a sampling circuit comprising: an amplifier, which amplifies charge signals generated at photo diodes and converts them to voltage signals; the first sample and hold circuit, which samples the voltage signal and charges the first capacitor according to the first switching signal, and outputs the stored charge as a reset signal based on a readout signal; the second sample and hold circuit, which samples the signals and charges the second capacitor according to the second switching signal that is non-overlapping to the first switching signal, and outputs the stored charge as a reset signal based on the readout signal; a resistor that acts as a low-pass filter placed in between the first and the second capacitors common nodes.

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