Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Koji Morikawa

Shinobu Adachi

Jun Ozawa

Yoshihisa Terada

Yumiko Kato

Kazutoyo Takata

Jeffry Fernando

Akinori Matsumoto

Taro Imagawa

Toru Nakada

Tsuyoshi Mekata

Yuki Minoda

Kazuki Kozuka

Katsuyoshi Yamagami

Koichi Ikemoto

Satoshi Kanai

Asuka Sakai

Tsuyoshi Inoue

Shoichi Araki

Takayuki Shirane

Shouichi Araki

Natsuki Oka

Masatoshi Sasaki

Souksakhone Bounyong

Takashi Omori

Hiroshi Nittono

Mikiya Fujii

Yu Ohigashi

A safety estimation device for batteries includes a parameter acquirer that acquires a design parameter of a battery, a calculator that calculates voltage behavior of the battery from the design parameter, based on a machine-learned logical model, and an outputter that outputs the voltage behavior as information about safety regarding heat generation of the battery.

Safety estimation device for batteries and safety estimation method for batteries

In the electronic apparatus, a contact impedance compensation controller calculates a first compensation value and a second compensation value so that a resulting value obtained by adding a third resistance value between a measuring electrode and first skin to a first resistance value is equal to a resulting value obtained by adding a fourth resistance value between a reference electrode and second skin to a second resistance value, determines first information on the basis of the first compensation value, determines the second information on the basis of the second compensation value, and sends the first information to the first compensation circuit.

Electronic apparatus, information processing apparatus, information processing method, and recording medium

A method includes (a) obtaining a search word, (b) obtaining first to third concept maps including words and semantic distances between the words, (c) obtaining a first association map including degrees of association indicating how close the semantic distances included in the first and second concept maps are to each other; (d) obtaining a second association map including degrees of association indicating how close the semantic distances included in the first to third concept maps are to one another, (e) extracting, from the words as an associated word, at least one word whose difference between the degree of association with the search word included in the first association map and the degree of association with the search word included in the second association map is equal to or larger than a first threshold, and (f) outputting a result of a search based on the search word and the associated word.

Search method for performing search based on an obtained search word and an associated search word

A method for expanding a word performed by a processor includes (a) obtaining a first word, (b) obtaining, from a memory, a concept map that is unique to a user and that includes a plurality of second words and semantic distances between the plurality of second words, the plurality of second words including words belonging to different categories, (c) determining, if the plurality of second words include a word corresponding to the first word, the word corresponding to the first word as a basic word, (d) selecting, on the basis of the semantic distances to the basic word, at least one of the plurality of second words included in the concept map as an adjacent word, and (e) outputting a result of a search on the basis of the first word and the adjacent word.

Method for expanding word, word expanding apparatus, and non-transitory computer-readable recording medium

A blood pressure estimation apparatus includes: a pulse wave measurement unit measuring a user's pulse wave signal; an electrocardiogram signal measurement unit measuring a user's electrocardiogram signal; and a processing circuit estimating a user's blood pressure value by using the pulse wave and electrocardiogram signals, wherein the processing circuit (a) acquires a pulse wave signal feature by using the pulse wave signal, (b) acquires an electrocardiogram signal feature by using the electrocardiogram signal, (c) acquires a pulse wave propagation time by using the pulse wave and electrocardiogram signals, (d) selects a blood pressure group indicating a relationship between a pulse wave propagation time and blood pressure of the user by using the pulse wave signal feature, electrocardiogram signal feature, and pulse wave propagation time, and (e) estimates the blood pressure value by using the blood pressure group, pulse wave signal feature, electrocardiogram signal feature, and pulse wave propagation time.

Blood pressure estimation apparatus, blood pressure estimation method, and non-transitory computer-readable recording medium

A learning system includes an output unit that outputs a first problem and a display message prompting a user to take a break, an acquisition unit that acquires an answer to the first problem from the user, an electroencephalogram measurement unit that measures an electroencephalogram of the user, and a control unit. The control unit determines whether first motivation is present on the basis of a first event-related potential included in the electroencephalogram and starting from a timing at which the first problem is output, determines whether second motivation of the user is present on the basis of a second event-related potential included in the electroencephalogram and starting from a timing at which the answer is acquired, and instructs the output unit to output a display message prompting the user to take a break if the first motivation is not present and the second motivations is not present.

Learning system, learning method, storage medium, and apparatus

An information processing system includes first and second electrodes for measuring cardiac potential, a pulse wave sensor that is disposed closer to the first electrode than to the second electrode and that measures a pulse wave, a buffer that amplifies a signal acquired by the first electrode, an interconnect wire that electrically connects the first electrode to a terminal of the buffer, a shield that shields the first electrode and the interconnect wire, and a shield potential generator that includes a first buffer circuit and a second buffer circuit having a larger drive current than the first buffer circuit and that starts applying, to the shield, a first generation signal generated by the first buffer circuit based on the acquired signal before a predetermined time point when the pulse wave is measured and starts applying a second generation signal generated by the second buffer circuit at the predetermined time point.

Electronic device, method for controlling electronic device, and recording medium

A program generating method acquires a first image set, and retrieves a similar image that is similar to a processing target image included in the first image set, from a database. For each of N number of second image sets in the database, an integrated similarity of an image included in the second image set with respect to the processing target image is calculated based on a first similarity between the image included in the second image set and the processing target image, a second similarity between the second image set and the first image set, and the completeness of the first image set, and the similar image is retrieved based on the integrated similarity.

Program generating method, program generating device, and recording medium

A biosignal measurement apparatus includes: a potential difference measurement unit that measures a potential difference between a plurality of electrodes of an electrode unit placed on a user's chest; an ECG analysis unit that obtains an electrocardiogram (ECG) indicating a temporal variation of a cardiac potential of the user, from the potential difference measured by the potential difference measurement unit; an impedance measurement switching unit that determines a start timing of a first period which is a period not including an R wave, using the ECG obtained by the ECG analysis unit; an impedance measurement unit that measures an impedance between the plurality of electrodes in the first period; and a respiratory calculation unit that calculates respiratory information related to respiration of the user, based on a temporal variation of the impedance measured by the impedance measurement unit.

Biosignal measurement apparatus and biosignal measurement method

An individual authentication method includes (i) indicating a first position of a user's arm or arms when gripping an electrocardiographic sensor, (ii) measuring the user's electrocardiographic activity at the first position by using the electrocardiographic sensor, (iii) indicating a second position of the user's arm or arms when gripping the electrocardiographic sensor, the second position being different from the first position, (iv) measuring the user's electrocardiographic activity at the second position by using the electrocardiographic sensor, (v) receiving ID information of the user, and (vi) registering, in a database, electrocardiographic authentication information including first authentication information associating the ID information with the user's electrocardiographic activity measured at the first position, and second authentication information associating the ID information with the user's electrocardiographic activity measured at the second position.

Individual authentication method, electrocardiographic authentication information generation method, individual authentication device, electrocardiographic authentication information generating device, recording medium, and method

An electrode attachment state determination system includes: an electroencephalogram measurement section for measuring an electroencephalogram signal of a user by using at least one set of electrodes including a ground electrode, a reference electrode, and a measurement electrode; a frequency analysis section for performing a frequency analysis of the electroencephalogram signal; an insufficient electrode determination section for extracting at least one parameter of a total frequency power and a noise amount from a result of the frequency analysis, and through a comparison of a value of the parameter against a predetermined threshold value, determining whether the ground electrode, the reference electrode, or the measurement electrode has an insufficient state of attachment; and an output section for, when an insufficient state of attachment is determined, presenting information indicating the insufficient state of electrode attachment to the user.

Electrode attachment state determination system, electrode attachment state determination method, and program thereof

An input image being displayed is acquired. A database is accessed to search for an image similar to the input image from images stored in the database. A candidate script associated with the similar image is retrieved from the database, and a decisive degree of the candidate script is calculated based on a result of the search for the similar image. A presentation program is generated by changing a value of a parameter included in the candidate script depending on the decisive degree. The input image is changed by executing the generated presentation program.

Program generation method, program generation apparatus, and storage medium

A muscular fatigue determination apparatus includes an information obtaining unit that obtains loads applied to a pedal of a bicycle, rotation speeds of a crank of the bicycle, and myoelectric potentials of a user, the myoelectric potentials and the loads being in a one-to-one relationship, the myoelectric potentials and the rotation speeds being in a one-to-one relationship, and a muscular fatigue information generation unit that generates muscular fatigue information regarding the user on the basis of whether a difference between the myoelectric potentials of the user is larger than a first threshold, each of the myoelectric potentials being associated to a load range that is one of load ranges and to a rotation speed range that is one of rotation speed ranges, each of the loads belonging to one of the load ranges and each of the rotation speed ranges belonging to one of the rotation speed ranges.

Muscular fatigue determination apparatus, method for determining muscular fatigue, and recording medium

A biological information measurement system includes: a plurality of electrodes; a current source connected to the plurality of electrodes to supply a current thereto; a measurement unit for measuring impedance from a potential difference between the plurality of electrodes; a detector for detecting values of specific peaks from chronological data of the impedance; an envelope generator for generating an envelope of values of the specific peaks; and an output unit for outputting information of the envelope as biological information.

Biological signal measurement system, apparatus, method, and computer program thereof

A sensor device includes a plurality of electrode chambers, a measurement chamber, and an accommodation chamber which are connected in annular relationship permitting expansion and contraction. Each of the plurality of electrode chambers has a measurement electrode. The measurement chamber has a biological potential measurement circuit which is connected with each measurement electrode via electrically conductive wiring for measuring biological potential of the user by using the measurement electrode. The accommodation chamber has an internal protrusion. The wiring which connects at least one measurement electrode and the biological potential measurement circuit is provided around the protrusion, the wiring having a length which enables longitudinal feeding in accordance with an amount of elongation when the sensor device is elongated. A maximum clearance S between the accommodation chamber and an adjacent chamber is greater than a maximum clearance R between any two adjacent chambers.

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Kyoto, Japan

Koji Morikawa