Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.

Abstract: Provided is a LiDAR (Light Detecting and Ranging) device for measuring distance using a laser, the LiDAR device including: a laser emitter configured to output the laser; a scanner configured to rotate around an axis of rotation, and be located at a reference measurement position and a scan position; a detector configured to detect the laser; and a controller configured to control the laser emitter and the detector, wherein the controller includes: a laser output controller configured to generate a trigger signal for controlling the laser emitter; and a detector controller configured to process a signal acquired from the detector and control the detector, wherein the detector controller includes: a correction signal calculator configured to calculate a correction signal to control a voltage applied to the detector; a distance offset calculator configured to calculate a distance offset; and a distance calculator configured to calculate a distance from an object.

Abstract: The present invention is related to a Light Detecting And Ranging (LiDAR) device configured to measure a distance using a laser, the LiDAR device including: a first laser emitting unit configured to output a first laser; a second laser emitting unit configured to output a second laser; a scanning unit configured to form a first field of view (FOV) using the first laser and a second FOV using the second laser; and a detecting unit configured to measure a distance to an object using the first and second lasers.

Abstract: Provided is an apparatus and a method for calculating a viewer rating and, more specifically, to an apparatus and a method for calculating a viewer rating, which process channel change data of a set-top box and can survey a viewer rating per household in real time.

Abstract: A microbubble used as a contrast agent for ultrasound imaging burst due to high intensity of ultrasound, and the burst microbubble effectively acts as a contrast agent for photoacoustic imaging. Based on this point, a new apparatus and method for combined photoacoustic and ultrasound diagnosis are provided.

Abstract: Provided is a photoacoustic probe. The photoacoustic probe is configured to control light emitted from an optical unit by using a shutter that is switched between a state in which the shutter is opened to allow light to pass therethrough and a state in which the shutter blocks the light according to whether an inspection starts.

Abstract: Provided are a photoacoustic probe and photoacoustic diagnostic apparatus. The photoacoustic probe includes a light irradiation unit for irradiating first light that is used for photoacoustic imaging on an object and an indicator for providing information about whether the first light is irradiated by using the first light.

Abstract: Provided are a photoacoustic apparatus and method of operating the same. The photoacoustic apparatus includes: a laser module that generates laser light and transmits a laser state signal indicating a state of a laser module; a probe including an optical output unit for irradiating laser light generated by the laser module onto an object and a scanner for detecting a photoacoustic signal that is generated from the object; a scanner controller for controlling a position of the scanner; a sequence controller for controlling acquisition of the photoacoustic signal based on the laser state signal; a signal receiver that is controlled by the sequence controller to acquire the photoacoustic signal; and a photoacoustic image generator for generating a photoacoustic image based on the photoacoustic signal. The laser state signal includes a lasing ready state signal and a laser exposure state signal.

Abstract: Provided are a photo-acoustic imaging apparatus and a method of displaying a photo-acoustic image by the photo-acoustic imaging apparatus. The method of displaying a photo-acoustic image by a photo-acoustic imaging apparatus includes: obtaining a first reception signal, which converts a first acoustic wave generated as light having a first wavelength is absorbed by a subject, and a second reception signal, which converts a second acoustic wave generated as light having a second wavelength is absorbed by the subject; determining a first correction coefficient for the first reception signal and a second correction coefficient for the second reception signal based on a ratio between a size of the first reception signal and that of the second reception signal; and displaying a photo-acoustic image which is corrected based on the first and second correction coefficients.

Abstract: A photoacoustic diagnostic apparatus is provided. The photoacoustic diagnostic apparatus includes a movement restriction unit that selectively restricts a location movement of a user input unit that receives an input signal from a user for a light irradiation unit to irradiate light, based on a location of a contact detection unit that detects whether a probe contacts a subject to be imaged.

Abstract: A photoacoustic probe and photoacoustic device implementing the photoacoustic probe may reduce an artifact caused by an ultrasonic wave generated in the photoacoustic probe without mounting a separate device. The photoacoustic probe and photoacoustic device implementing the photoacoustic probe may reduce an artifact by changing a configuration or a structure provided in the photoacoustic probe. The photoacoustic probe may receive a photoacoustic signal generated from an inner material of an object absorbing light of a predetermined wavelength and may include a piezoelectric module to convert the photoacoustic signal into an electric signal, and an object contact unit disposed on the front surface of the piezoelectric module, the object contact unit contacting the object and not absorbing the light of a predetermined wavelength.

Abstract: A combined imaging apparatus in which heterogeneous imaging devices are combined and a method for controlling the same are disclosed. The combined imaging apparatus includes a photoacoustic imaging unit to irradiate an energy beam to a target part, an ultrasonic imaging unit to generate an ultrasonic wave, irradiate the ultrasonic wave to the target part, and collect an echo ultrasonic wave reflected from the target part to which the ultrasonic wave is irradiated or an ultrasonic wave generated from the target part in response to energy beam irradiation of the photoacoustic imaging unit. The ultrasonic imaging unit starts or stops operation according to an operation state of the photoacoustic imaging unit.

Abstract: Provided are a photo-acoustic imaging apparatus and a method of displaying a photo-acoustic image by the photo-acoustic imaging apparatus. The method of displaying a photo-acoustic image by a photo-acoustic imaging apparatus includes: obtaining a first reception signal, which converts a first acoustic wave generated as light having a first wavelength is absorbed by a subject, and a second reception signal, which converts a second acoustic wave generated as light having a second wavelength is absorbed by the subject; determining a first correction coefficient for the first reception signal and a second correction coefficient for the second reception signal based on a ratio between a size of the first reception signal and that of the second reception signal; and displaying a photo-acoustic image which is corrected based on the first and second correction coefficients.

Abstract: A photoacoustic (PA) apparatus and a method of operating the same are provided. The method includes: irradiating a laser beam onto a region of interest (ROI) which includes a flow and receiving a first PA signal corresponding to the irradiated laser beam; generating a first PA image on the basis of the first PA signal; irradiating a laser beam onto the ROI where the flow is restricted and receiving a second PA signal corresponding to the irradiated laser beam; generating a second PA image on the basis of the second PA signal; generating a difference image between the first PA image and the second PA image; and displaying the difference image.

Abstract: A photoacoustic diagnostic apparatus is provided. The photoacoustic diagnostic apparatus includes a movement restriction unit that selectively restricts a location movement of a user input unit that receives an input signal from a user for a light irradiation unit to irradiate light, based on a location of a contact detection unit that detects whether a probe contacts a subject to be imaged.

Abstract: Provided are a photoacoustic probe and photoacoustic diagnostic apparatus. The photoacoustic probe includes a light irradiation unit for irradiating first light that is used for photoacoustic imaging on an object and an indicator for providing information about whether the first light is irradiated by using the first light.

Abstract: Provided is a photoacoustic probe. The photoacoustic probe is configured to control light emitted from an optical unit by using a shutter that is switched between a state in which the shutter is opened to allow light to pass therethrough and a state in which the shutter blocks the light according to whether an inspection starts.

Abstract: Provided are a photoacoustic apparatus and method of operating the same. The photoacoustic apparatus includes: a laser module that generates laser light and transmits a laser state signal indicating a state of a laser module; a probe including an optical output unit for irradiating laser light generated by the laser module onto an object and a scanner for detecting a photoacoustic signal that is generated from the object; a scanner controller for controlling a position of the scanner; a sequence controller for controlling acquisition of the photoacoustic signal based on the laser state signal; a signal receiver that is controlled by the sequence controller to acquire the photoacoustic signal; and a photoacoustic image generator for generating a photoacoustic image based on the photoacoustic signal. The laser state signal includes a lasing ready state signal and a laser exposure state signal.

Abstract: A microbubble used as a contrast agent for ultrasound imaging burst due to high intensity of ultrasound, and the burst microbubble effectively acts as a contrast agent for photoacoustic imaging. Based on this point, a new apparatus and method for combined photoacoustic and ultrasound diagnosis are provided.

Abstract: A microbubble is used as a multi-modality contrast agent for photoacoustic imaging and ultrasound imaging. A method of preparing improved microbubbles that are used as a multi-modality contrast agent for photoacoustic imaging and ultrasound imaging is provided. The microbubble includes a dye-colored lipid shell; and a filling gas filling the inside of the lipid shell. The method of preparing microbubbles includes agitating a dye-colored lipid-containing solution in the presence of filling gas.