公开(公告)号：US10148434B2

公开(公告)日：2018-12-04

申请号：US15350701

申请日：2016-11-14

申请人： MegaChips Corporation

发明人： Takahiko Sugahara

IPC分类号： G06F21/00 ,  H04L9/08 ,  H04L9/26 ,  G09C1/00 ,  G06F7/58 ,  H04L9/06

摘要： A random number generating device includes an uncertain circuit which outputs uncertain data, and a cipher processing device. The cipher processing device encrypts input data using a cipher function of the cipher processing device, and generates a random number including higher uniformity than data outputted from said uncertain circuit using the cipher function of the cipher processing device and the data outputted from the uncertain circuit.

公开(公告)号：US10135429B2

公开(公告)日：2018-11-20

申请号：US15465783

申请日：2017-03-22

申请人： MegaChips Corporation

发明人： Shingo Adachi

IPC分类号： H03K3/017 ,  H03K5/04 ,  H03K7/08 ,  H03K5/156

摘要： A clock correction device performs skew adjustment and duty correction of an input clock concurrently or in parallel. The clock correction device includes a correction circuit that performs skew adjustment of an input clock by analog control using a skew adjustment signal based on a phase difference between an output clock and a reference clock, receives a duty control signal, and performs duty correction of the input clock by digital control, a skew detection circuit that receives inputs of the output clock and the reference clock and, when only the reference clock is in a predetermined state, outputs a detection signal that changes to the predetermined state, an integration circuit that integrates the detection signal and generates a first voltage signal, and a comparator that compares the first voltage signal and a first reference signal to thereby generate the skew adjustment signal.

公开(公告)号：US10096379B2

公开(公告)日：2018-10-09

申请号：US14921155

申请日：2015-10-23

申请人： MegaChips Corporation

发明人： Takahiko Sugahara

IPC分类号： G11C29/00 ,  G11C29/38 ,  G11C29/36 ,  G11C29/18 ,  G11C29/26

摘要： A memory controller performs a reliability test only on a memory array out of the memory array and a random number generator on receipt of a memory test command from a testing device while performing a reliability test only on the random number generator out of the memory array and the random number generator on receipt of a random number test command from the testing device.

公开(公告)号：US10090946B2

公开(公告)日：2018-10-02

申请号：US15334055

申请日：2016-10-25

申请人： Stichting IMEC Nederland

发明人： Jacobus Petrus Adrianus Romme ,  Keishi Kajiwara

IPC分类号： H04W64/00 ,  H04B17/318 ,  H04L1/00 ,  G06F1/03

摘要： A device for calculating an indication of power of a received radio signal is disclosed. In one aspect, the device includes a receiver for receiving a plurality of logarithmic values representing a sequence of measurements of power of the received radio signal, and circuitry for determining a sum of the plurality of logarithmic values. The circuitry includes an adder for pairwise summing of two logarithmic values and a plurality of memory registers. The plurality of memory registers are arranged to store intermediate sums of logarithmic values. The circuitry is arranged to control the adder to sum the plurality of logarithmic values by a recursive procedure such that the first and the second logarithmic value in individual summations of the recursive procedure represent substantially same number of power measurements.

公开(公告)号：US20180144445A1

公开(公告)日：2018-05-24

申请号：US15874346

申请日：2018-01-18

申请人： MegaChips Corporation

发明人： Hideki DAIAN ,  Takuya SAWADA

IPC分类号： G06T5/00

CPC分类号： G06T5/002 ,  G06T2207/10004 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20192 ,  H04N19/124 ,  H04N19/176 ,  H04N19/60

摘要： A setting circuit sets a quantization value per input image on the basis of a noise value of the whole input image, and a quantization circuit performs quantization on first image data to generate second image data. Quantization value based on the noise value the whole input image can realize appropriate denoising depending on the noise level of the whole input image.

公开(公告)号：US20180144444A1

公开(公告)日：2018-05-24

申请号：US15874303

申请日：2018-01-18

申请人： MegaChips Corporation

发明人： Hiroki NAKAMORI ,  Takuya Sawada ,  Hideki Daian

IPC分类号： G06T5/00

CPC分类号： G06T5/002 ,  G06T2207/10004 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20192 ,  H04N19/124 ,  H04N19/176 ,  H04N19/60

摘要： A setting circuit sets a quantization value per input image on the basis of a noise value of the whole input image, and a quantization circuit performs quantization on first image data to generate second image data. Quantization value based on the noise value the whole input image can realize appropriate denoising depending on the noise level of the whole input image.

公开(公告)号：US09911191B2

公开(公告)日：2018-03-06

申请号：US14881652

申请日：2015-10-13

申请人： MegaChips Corporation ,  Kyushu Institute of Technology

发明人： Norikazu Ikoma ,  Hiromu Hasegawa

IPC分类号： G06T7/77 ,  G06T7/73 ,  G06K9/46 ,  G06T7/20 ,  G06K9/32 ,  G06T7/00 ,  G06K9/00

CPC分类号： G06T7/77 ,  G06K9/00771 ,  G06K9/4609 ,  G06K9/4652 ,  G06K2009/3291 ,  G06T7/20 ,  G06T7/73 ,  G06T2207/10016 ,  G06T2207/20024 ,  G06T2207/20076

摘要： The purpose of the present invention is to provide a state estimation apparatus that appropriately estimates the internal state of an observation target by determining likelihoods from a plurality of observations. An observation obtaining unit of the state estimation system obtains, at given time intervals, a plurality of observation data obtained from an observable event. The observation selecting unit selects a piece of observation data from the plurality of pieces of observation data obtained by the observation obtaining unit based on a posterior probability distribution data obtained at a preceding time t−1. The likelihood obtaining unit obtains likelihood data based on the observation data selected by the observation selecting unit and predicted probability distribution data obtained through prediction processing using the posterior probability distribution data. The posterior probability distribution estimation unit estimates posterior probability distribution data representing a state of the observable event based on the predicted probability distribution data obtained by the likelihood obtaining unit and the likelihood data. The prior probability distribution output unit outputs prior probability distribution data based on the posterior probability distribution data estimated by the posterior probability distribution estimation unit as prior probability distribution data at a next time t+1.

公开(公告)号：US09881361B2

公开(公告)日：2018-01-30

申请号：US15388821

申请日：2016-12-22

申请人： MegaChips Corporation

发明人： Hideki Daian ,  Takuya Sawada

IPC分类号： G06K9/40 ,  G06T5/00 ,  H04N19/60 ,  H04N19/176 ,  H04N19/124

CPC分类号： G06T5/002 ,  G06T2207/10004 ,  G06T2207/20012 ,  G06T2207/20021 ,  G06T2207/20192 ,  H04N19/124 ,  H04N19/176 ,  H04N19/60

摘要： A setting circuit sets a quantization value per input image on the basis of a noise value of the whole input image, and a quantization circuit performs quantization on first image data to generate second image data. Quantization value based on the noise value the whole input image can realize appropriate denoising depending on the noise level of the whole input image.

公开(公告)号：US20180004354A1

公开(公告)日：2018-01-04

申请号：US15705465

申请日：2017-09-15

申请人： MegaChips Corporation ,  Nitto Denko Corporation

发明人： Motoyasu Tanaka ,  Takashi Matsutani ,  Masayasu Yamamoto ,  Yuki Haraguchi ,  Hideo Sugawara ,  Ikuo Kawamoto ,  Motoki Haishi ,  Nobuyuki Kozonoi

IPC分类号： G06F3/041 ,  G06F3/043 ,  G10H1/00

CPC分类号： G06F3/0418 ,  G06F3/043 ,  G06F3/0433 ,  G10H1/0008 ,  G10H3/143 ,  G10H3/146 ,  G10H2210/061 ,  G10H2210/395 ,  G10H2220/535 ,  G10H2220/541 ,  G10H2240/141

摘要： An information reception device is provided with: operation surface which is adjusted to produce a characteristic index vibration by an object contact; a storage device stores candidate information (candidate information is related with the index vibration) which serves as a candidate of input information; a microphone which acquires observation information according to observation of the actual vibration arising in the surrounding environment; and a CPU. The CPU (selecting part) judges whether or not the index vibration exists in the observation information acquired. When the CPU judges that the index vibration exists, the CPU selects the candidate information which is related with the index vibration as the input information.

公开(公告)号：US09860566B2

公开(公告)日：2018-01-02

申请号：US15276512

申请日：2016-09-26

申请人： MegaChips Corporation

发明人： Yusuke Mizuno

IPC分类号： G06K9/46 ,  H04N19/64 ,  H04N19/172 ,  H04N19/117 ,  H04N19/13 ,  H04N19/167 ,  H04N19/63 ,  H04N19/46 ,  H04N19/146 ,  H04N19/124 ,  H04N19/30

CPC分类号： H04N19/647 ,  H04N19/117 ,  H04N19/124 ,  H04N19/13 ,  H04N19/146 ,  H04N19/167 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46 ,  H04N19/63

摘要： Circuitry configured to generate an ROI mask by determining whether each of quantized wavelet coefficients constituting quantized image data is associated with an ROI or a non-ROI in an original image on the basis of the scaling amount of the Max-shift method, generate first image data by performing inverse quantization on the quantized image data after being scaled down, generate second image data having a specified decomposition level by performing inverse wavelet transformation on the first image data, generate a restored ROI mask having the same decomposition level as that of the second image data by performing a predetermined process on the ROI mask once or a plurality of times, generate masked image data by applying the restored ROI mask to the second image data, and perform the inverse wavelet transformation on the masked image data until a decomposition level becomes zero.