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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Ham; Seog Heon
Address:
Suwon-si, KR
No. of patents:
15
Patents:












Patent Number Title Of Patent Date Issued
8300116 Two-path sigma-delta analog-to-digital converter and image sensor including the same October 30, 2012
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
8248284 Analog-to-digital converters, and image sensors and image processing devices having the same August 21, 2012
An analog-digital converter (ADC) includes a correlated double sampling (CDS) circuit configured to perform CDS on each of a reset signal and an image signal output from a pixel to generate a correlated double sampled reset signal and a correlated double sampled image signal, respectivel
8233068 Decimation filters, analog-to-digital converters including the same, and image sensors including July 31, 2012
An image sensor includes an analog-to-digital converter (ADC) and a decimation filter. The decimation filter includes a first digital data generator and a second digital data generator. The first digital data generator is configured to integrate sigma-delta modulated M-bit pixel data
8203477 Analog-to-digital conversion and implementations thereof June 19, 2012
In one embodiment, an analog-to-digital converter (ADC) includes a comparator and a supply circuit. The comparator is configured to compare an input signal to a reference signal. The supply circuit is configured to supply the reference signal. The supply circuit is configured to prov
8094058 Analog digital converters and image sensors including the same January 10, 2012
The analog-digital converter (ADC) includes a modulator and a digital integrator. The modulator is configured to modulate an input signal and output a modulated signal. The digital integrator includes a plurality of accumulators serially connected to one another. The digital integrator i
8081098 Integrator, delta-sigma modulator, analog-to-digital converter and applications thereof December 20, 2011
In one embodiment, the modulator in an analog-to-digital converter includes a first reset switch and second reset switch, each controlled by a reset signal. The first reset switch is connected in a first reset feedback path between an input and an output of an integrator stage, and t
8059175 Image capture device and method of operating the same November 15, 2011
A method for operating an image capture device having a sensor with an array of first and second pixels includes capturing an image a plurality of times with the second pixels to produce a corresponding second image signal, the second pixels being white pixels, capturing the image a
7995123 Digital double sampling method, a related CMOS image sensor, and a digital camera comprising the August 9, 2011
A digital double sampling method, a related complementary metal oxide semiconductor (CMOS) image sensor, and a digital camera comprising the CMOS image sensor are disclosed. The method includes generating first digital data corresponding to an initial voltage level apparent in a pixe
7985993 CMOS image sensor and image signal detecting method thereof July 26, 2011
A complementary metal oxide semiconductor (CMOS) image sensor includes a photodiode, a switch and a comparator. The switch transfers a sensing signal to a sensing node from the photodiode. The comparator, which is directly connected to the sensing node, compares the sensing signal of
7978237 Method and apparatus for canceling fixed pattern noise in CMOS image sensor July 12, 2011
An apparatus for canceling a fixed pattern noise in a CMOS image sensor includes a storage device, a fixed pattern noise operation circuit, and a fixed pattern noise canceling circuit. The storage device stores first reference fixed pattern noises operated in a vertical blank section of
7916061 Apparatus and method for sigma-delta analog to digital conversion March 29, 2011
A method and apparatus are provided for sigma-delta (.SIGMA..DELTA.) analog to digital conversion, the method including receiving an analog signal, sampling the received signal, comparing the sampled signal with a constant reference voltage, providing at least one high-order bit resp
7800427 Switched capacitor circuit with inverting amplifier and offset unit September 21, 2010
A switched capacitor circuit includes an amplifier, a charging unit, an offset unit, and an integrating unit. The charging unit is coupled between an input node and a first node, and is for accumulating charge corresponding to an input signal during a sampling mode. The offset unit i
7773018 Sigma-delta analog-to-digital converter and solid-state image pickup device August 10, 2010
A sigma-delta analog-to-digital converter may include a sigma-delta modulator and a decimation filter. The sigma-delta modulator may convert a first analog input signal into a first bit stream having a first pattern using sigma-delta modulation and convert a second analog input signa
7679542 Image sensor using auto-calibrated ramp signal for improved image quality and driving method the March 16, 2010
An image sensor comprises an active pixel sensor (APS) array, a first analog-to-digital converter (ADC) and a ramp signal generator. The APS array includes a plurality of pixels arranged in a two-dimensional matrix, wherein the APS array generates a reset signal and an image signal f
7379011 Lossless nonlinear analog gain controller in image sensor and manufacturing method thereof May 27, 2008
An image sensor comprises an active pixel sensor (APS) array, a first analog-to-digital converter (ADC), and a ramp signal generator. The APS array has includes a plurality of pixels of arranged in a second order two-dimensional matrix, and wherein the APS array generates a reset sig










 
 
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