Samsung Electronics Co., Ltd.

Daesol Ausys Co., Ltd.

Min Ho Kwon

Kwi Sung Yoo

Dong Hun Lee

Wun-Ki Jung

Seog Heon Ham

Seung Hyun Lim

Jae Hong Kim

Kyoung Min Koh

Ji Yong Park

Sang Hyun Cho

Dae Hwa Paik

Jin Ho Seo

Yu Jin Park

Jae Kyun Nam Gung

Soon Hwa Kang

JeongHyeon Heo

Ma Byung-Jong

Won Ho Choi

Jaekyun Namgung

Honeycomb structures, glass fiber mats, and polyurethane on both sides with respect to a perforated plate. A sound absorption hole is formed in at least one of the glass fiber mat and the polyurethane arranged on both sides of the honeycomb structure and passes through each cell, so that sound absorption performance in a high frequency band as well as a low frequency band can be improved using multilayer sound absorption characteristics. Noise passing through the honeycomb structure is changed to noise to be absorbed. Since the diameters of the sound absorption holes formed to pass through the honeycomb structures arranged on both sides of the perforated plate are different, a sound absorption band of a desired frequency may be easily adjusted. The sound absorption performance in a low frequency band of 1,000 Hz and a high frequency band of 5,000 Hz or higher can be improved.

Sound absorption board for electric vehicle

An image sensor chip includes an internal voltage generator for generating internal voltages using an external voltage received at a first terminal of the image sensor chip, a temperature sensor for generating a temperature voltage, a selection circuit for outputting one of the external voltage, the internal voltages, and the temperature voltage, a digital code generation circuit for generating a digital code using an output voltage of the selection circuit, and a second terminal for outputting the digital code from the image sensor chip.

Image sensor chip that feeds back voltage and temperature information, and an image processing system having the same

A load floor for a vehicle, by which, as the load floor is manufactured by including manufacturing a honeycomb structure with paper and adding polyurethane sheets to both side surfaces of the honeycomb structure, light and sufficient structural stiffness and a sound absorption effect are obtained through the honeycomb structure. As the polyurethane sheets are respectively provided on both surfaces of the honeycomb structure, sound absorption and insulation performances are obtained to further increase a sound absorption and insulation effect.

Load floor having sound absorption and insulation performances for vehicle

An apparatus includes an operational amplifier circuit comprising at least one operational amplifier and a feedback circuit coupled between the output terminal and input terminal of the operational amplifier circuit and configured to apply a feedback gain to an output signal at the output of the first operational amplifier. The apparatus further includes a variable compensation capacitor coupled to the output terminal of the operational amplifier circuit and configured to vary a capacitance thereof responsive to the feedback gain.

Amplifier apparatus and methods using variable capacitance dependent on feedback gain

An image sensor includes a pixel array including a plurality of pixels which are arranged in a matrix of a plurality of rows and columns and each of the plurality of pixels being configured to convert intensity of incident light into an electrical image signal; and an extended counting analog-to-digital converter configured to perform a first analog-to-digital conversion to provide a digital signal from an output signal of the pixel array, to obtain a residue using the output signal of the pixel array and the digital signal, and to perform a second analog-to-digital conversion using the residue.

Analog-to-digital converters and related image sensors

A sense amplifier having a negative capacitance circuit receives differential input signals via a pair of data lines, and senses and amplifies a voltage difference between differential output signals corresponding to the differential input signals as loaded by the negative capacitance circuit using a differential-to-single-ended amplifier to generate a corresponding data output signal.

Sense amplifier including negative capacitance circuit and apparatuses including same

A correlated double sampling circuit includes a delta-sigma modulator, a selection circuit, and an accumulation circuit. The delta-sigma modulator is configured to receive an input signal, delta-sigma modulate the input signal, and output a modulation signal. The selection circuit is configured to invert the modulation signal and selectively output one of the modulation signal and an inverted modulation signal in response to a selection signal corresponding to an operation phase. The accumulation circuit is configured to generate a first accumulation result by performing an accumulation process on one of the modulation signal and the inverted modulation signal in a first operation phase, and generate a second accumulation result by performing the accumulation process on the first accumulation result and the other one of the modulation signal and the inverted modulation signal in a second operation phase.

Correlated double sampling circuit and image sensor including the same

An image sensor comprises a plurality of pixel units connected to a column line, a signal process circuit configured to process a signal output from the column line according to a switching operation, and a kick-back noise blocking circuit configured to reduce kick-back noise caused by the switching operation. Each of the pixel units includes a photoelectric conversion element. The kick-back noise blocking circuit is connected between the column line and the signal process circuit.

Image sensor for reducing kick-back noise and image pick-up device having the same

An amplifier is provided. The amplifier includes a differential amplifier including a tail, a current mirror connected between output terminals of the differential amplifier and a power line receiving a supply voltage, and a first switching circuit for connecting and disconnecting one of the output terminals of the differential amplifier to and from the tail in response to a first switching signal.

Amplifier for reducing horizontal band noise and devices having the same

Example embodiments are directed to an analog-to-digital converter (ADC) that controls a gain by changing a system parameter, an image sensor including the ADC and a method of operating the ADC. The ADC includes a sigma-delta modulator which receives an input signal and a clock signal and sigma-delta modulates the input signal into a digital output signal based on the clock signal and an accumulation unit which accumulates the digital output signal at each cycle of the clock signal according to an analog-to-digital conversion time and outputs an accumulation result. A system parameter is varied during the analog-to-digital conversion time to control a gain of the ADC. The method of operating the analog-to-digital converter includes sigma-delta modulating an input signal into a digital output signal in response to a clock signal input to the ADC; and accumulating the digital output signal at each cycle of the input clock signal according to an analog-to-digital conversion time and outputting an accumulation result.

Analog-to-digital converter for controlling gain by changing a system parameter, image sensor including the analog-to-digital converter and method of operating the analog-to-digital converter

A correlated double sampling (CDS) circuit is provided. The CDS circuit is configured to perform a CDS on a reset signal and an image signal during a CDS phase respectively. The CDS circuit includes a sampling circuit configured to output a difference between a correlated double sampled reset signal and a correlated double sampled image signal, and a feedback unit configured to feedback the difference output from the sampling circuit during a PGA phase to an input of the sampling circuit.

Correlated double sampling circuit, image sensor including the same, and image processing system including the image sensor

In one embodiment, the ADC includes a modulator configured to generate a symbol sequence, an operand generator configured to generate operands, and a selector configured to selectively output at least one of (1) a reference value and (2) at least one of the operands based on the symbol sequence. The ADC further includes an accumulator configured to accumulate output from the selector.

Digital filter, analog-to-digital converter, and applications thereof

A two-path sigma-delta analog-to-digital converter and an image sensor including the same are provided. The two-path sigma-delta analog-to-digital converter includes at least one integrator configured to integrate a first integrator input signal during a second half cycle of a clock signal and integrate a second integrator input signal during a first half cycle of the clock signal by using a single operational amplifier; a quantizer configured to quantize integrated signals from the at least one integrator and output a first digital signal and a second digital signal; and a feedback loop configured to feed back the first and second digital signals to an input of the at least one integrator. A first analog signal and a second analog signal respectively input from two input paths are respectively converted to the first and second digital signals using the single operational amplifier, thereby increasing power efficiency and reducing an area.

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Seoul, South Korea

Min Ho Kwon