Abstract: The present invention discloses an image sensor for real-time calibration of dark current, including a pixel array comprises at least a pixel unit, the pixel unit includes a pixel photosensitive portion, a pixel dark shielding portion and a subtraction circuit, photodiodes in the pixel photosensitive portion and the pixel dark shielding portion are isolated by deep trench isolations, the pixel dark shielding portion are covered by a dark shielding layer; both of the pixel photosensitive portion and the pixel dark shielding portion adopt a same voltage and sequential control, a light ambient voltage signal and a non-light ambient voltage signal are generated and connected to both ends of a subtraction circuit to realize subtraction and dark current calibration.

Abstract: A digital-to-analog converter includes an array of capacitors, an array of capacitor switches, positive and negative high-bandwidth reference buffers, positive and negative low-bandwidth reference buffers, and a reference-voltage-selection switch. Each capacitor switch electrically couples a respective capacitor to either a positive or a negative reference voltage line. The reference-voltage-selection switch electrically couples the positive and negative reference voltage lines to either positive and negative high-bandwidth voltages or to positive and negative low-bandwidth voltages. The positive and negative high-bandwidth voltages are produced by the positive and negative high-bandwidth reference buffers. The positive and negative low-bandwidth voltages are produced by the positive and negative low-bandwidth reference buffers.

Abstract: A time-interleaved sampling system includes an input signal having a time-varying analog value and a plurality of samplers. Each sampler is operable in a hold mode and a track mode. In the track mode, the samplers track the analog value of the input signal. In the hold mode, each sampler holds a respective analog value of the input signal that a respective sampler tracked immediately before entering the hold mode. The samplers enter the track mode in a predetermined sequence. After a last sampler in the predetermined sequence enters the track mode, the predetermined sequence is repeated in a loop. At random intervals, a skipped sampler in the predetermined sequence is bypassed from entering the track mode.

Abstract: The present disclosure refers to a multispectral image sensor and a manufacturing method thereof. The multispectral image sensor comprises a front-end structure used for photoelectric conversion and processing, and a pixel layer provided on the front-end structure. The pixel layer comprises N pixel units, and N?4, the pixel units are arranged in a plurality of arrays, a photosensitive wavelength of each pixel unit in each array is different. Whereby, multispectrals can be detected simultaneously, and therefore the efficiency is improved, costs are reduced, and miniaturization is achieved.

Abstract: A MIPI D-PHY circuit comprises a main control module, a controlled module, an internal data source generating module, and a configuration register. The main control module and the controlled module are respectively connected to the configuration register, and the main control module is connected to the internal data source generating module. The main control module and the controlled module comprise a clock channel and a data channel respectively. The clock channel and the data channel in the main control module and the data channel and the clock channel in the controlled module both comprise an error detection unit. The MIPI D-PHY circuit provided by the present disclosure adopts the error detection unit to detect the signals of the main control module and the controlled module.

Abstract: An interferometer system includes a measurement arm comprising a measurement dispersive optical system, a reference arm comprising a bulk diffuser object and a reference dispersive optical system, and an output system. The measurement dispersive optical system is positioned to direct measurement chromatic light towards a target, receive diverging chromatic measurement light from the target, and direct detected measurement light from the received diverging chromatic measurement light towards the output system. The reference dispersive optical system is positioned to direct reference chromatic light towards the bulk diffuser object, receive diverging chromatic reference light from the bulk diffuser object, and direct detected reference light from the received diverging chromatic reference light towards the output system. The output system is configured to determine at least one measured property of the target from the detected measurement light and the detected reference light.

Abstract: A measurement system includes an optical probe that has a reflective prism structure, an input system, and an output system. The reflective prism structure comprises at least two mirrored surfaces on opposing sides of an axis which extends in a direction towards a target. The input system is positioned to receive and direct source light towards one of the mirrored surfaces which is positioned to reflect the source light towards the target. The output system is positioned to receive and output converging light from reflected light that comprises measurement data related to the target. The reflected light is the source light reflected from the target via the other one of the mirrored surfaces and is without substantial overlap with the source light.

Abstract: A push-pull dynamic amplifier is operable in reset and amplification phases. The amplifier includes first NMOS and PMOS input transistors that are electrically coupled to a first input terminal and a first output terminal. Second NMOS and PMOS input transistors are electrically coupled to a second input terminal and a second output terminal. First and second reset switches are electrically coupled to the first and second output terminals, respectively. A power supply switch is electrically coupled to the first and the second PMOS transistors, and a ground switch is electrically coupled to the first and the second NMOS transistors. During the reset phase, the reset switches are closed and the power supply switch and the ground switch are opened. During the amplification phase, the reset switches are opened and the power supply switch and the ground switch are closed.

Abstract: The internal operational state of wellhead equipment and downhole activity can be monitored with a sensor device mounted or mountable on the wellhead equipment. The sensor can include more than one vibration sensor, a sensor communications device, and a processor. The vibration sensor generates sensor signals in response to vibrations of the wellhead equipment caused by changes in the internal operating state of the wellhead equipment or downhole activity. The processor generates sensor data based on the generated electronic sensor signals. The sensor communication device transmits an electronic data signal for the sensor data via a communications network to a user device, which may be located remotely from the wellhead equipment. The user device can output a report including an audible or visible representation of the transmitted sensor data. In some embodiments, the sensor device can be retrofit to existing equipment and systems.

Abstract: The present invention discloses a motion detection circuit applied to CIS and a motion detection method.

Abstract: Photo receiver circuits comprising photo diode, a first amplifier, a second amplifier, and a feedback resistor are disclosed. The photo diode receives a light signal producing a photo current and the circuit produces an output voltage proportional to the photo current. In one example, the second amplifier coupled across the photo diode provides a voltage level shift between the input terminal and the output terminal, bootstrapping the parasitic capacitance out.

Abstract: According to an embodiment, an apparatus for detecting a characteristic of a pump includes: a housing having a first planar surface and a second planar surface opposite the first planar surface, a mount structure located on the second planar surface, wherein the mount structure is configured to facilitate attachment of the apparatus on an external surface of the triplex pump, and wherein the mount structure avoids penetrating an inside surface of the triplex pump. Advantageously, apparatus is a non-invasive device and does not involve modifications to the pump nor opening the lid of the pump.

Abstract: A system for dispensing fluid in response to a sensed property such as an ambient sound comprises a sensor for detecting one or more properties, a processing stage for determining if the one or more sensed properties is/are within a predetermined range and/or above and/or below a predetermined level and dispenser for dispensing a fluid into an area surrounding the system if the one or more sensed properties is/are determined by the processing stage to be within a predetermined range and/or above and/or below a predetermined level and/or value.

Abstract: An analog current memory circuit includes a ramp current generator producing a ramp current; a storage transistor, a write-enable transistor, a charge pump transistor, a clock generator producing a clock signal having a first state and a second state, a comparator electrically coupled to the storage transistor and the ramp current generator, a controller electrically coupled to the comparator and the clock generator, and a switch electrically coupled to the controller and the ramp current generator. During the write phase, the controller produces a write-enable signal to turn on the write-enable transistor to produce a stored current in the storage transistor, the stored current being substantially equal to an input current to the analog current memory circuit. During the compensation phase, the switch electrically couples the ramp current generator and the storage transistor to the comparator.

Abstract: Methods and systems for the image processing of a three-dimensional imaging system include a multi-processor embodiment wherein the image output by an image sensor is divided amongst the several multi-processors for processing in order to improve the frame rate of the three-dimensional imaging system. Since the frame rate of a three-dimensional imaging system utilizing an image-intensifier is not limited by the amount of useful signal light available for imaging but is instead limited by image processing capacity, this technology provides for the use of multi-core or multi-processor image processing methods to improve the frame rate. Additionally, locating the image processor in close proximity to the image sensor allows for faster image data communication between the image sensor and image processor, which further improves the frame rate of the three-dimensional imaging system.

Abstract: A push-pull dynamic amplifier is operable in reset and amplification phases. The amplifier includes first NMOS and PMOS input transistors that are electrically coupled to a first input terminal and a first output terminal. Second NMOS and PMOS input transistors are electrically coupled to a second input terminal and a second output terminal. First and second reset switches are electrically coupled to the first and second output terminals, respectively. A power supply switch is electrically coupled to the first and the second PMOS transistors, and a ground switch is electrically coupled to the first and the second NMOS transistors. During the reset phase, the reset switches are closed and the power supply switch and the ground switch are opened. During the amplification phase, the reset switches are opened and the power supply switch and the ground switch are closed.

Abstract: The present disclosure provides a global shutter CMOS pixel circuit and its image capturing method. The global shutter CMOS pixel circuit comprising a power supply unit, a pixel signal generating unit, a signal sampling and holding unit and a signal outputting unit. An output of the pixel signal generating unit is connected to an input of the signal sampling and holding unit. An output of the signal sampling and holding unit is connected to an input of the signal outputting unit. The output signal of the pixel and the photo-generated current are set to a logarithmic relationship, which effectively increases the signal dynamic range. Therefore, image signal transmission with high speed and high dynamic range can be achieved simultaneously. Furthermore, the pixels in the present disclosure can eliminate the process variations, which increases the consistency of the pixels.

Abstract: A method for hybrid wafer-to-wafer bonding, comprising: providing two silicon wafers with Cu pattern structures, a conventional Cu BEOL process is adopted on the silicon wafers to obtain the planarized surface with copper and dielectric; removing part of the Cu on the planarized surface of the Cu pattern structures by adopting an etching process to form a certain amount of Cu recesses; depositing a layer of bonding metal on the surface of the Cu by adopting a selective deposition process; performing surface activation on the bonding metal and the dielectric by adopting a surface activation process; aligning and pressing the two silicon wafers together to obtain the dielectric bonding; and obtaining the metal bonding through the annealing process.

Abstract: The present disclosure provides a FINFET device integrated with a TFET and its manufacturing method. Two end portions of the fin structure respectively form an N-type doped drain and a source which is consisted by a top P-type doped region and a bottom N-type doped region. As a result, the bottom N-type doped region of the source, the drain, the channel, the high-k dielectric layer and the gate structure on the surface of the sidewall of the fin structure form a MOS FINFET device, and the top P-type doped region of the source, the drain, the channel, the high-k dielectric layer and the gate structure on the top surface of the fin structure form the TFET device. The integration of the TFET and the FINFET is achieved, which decreases the cost.

Abstract: A method and device for creating and maintaining a personalised bubble of scent, the method including: providing a wearable device including a perfume reservoir, a perfume dispenser coupled to the perfume reservoir, and a controller to dispense a volume of perfume from the device at intervals; controlling said wearable device to dispense a pulse volume of scent from said perfume reservoir at a pulse interval; and determining said pulse volume and said pulse interval to maintain a mass per unit volume concentration of said perfume above a threshold level within a defined radius from said wearable device.