Abstract: A method, system for encoding or decoding information in physical properties of an object. A tangible product comprises a three dimensional tangible object having modified physical properties; and wherein the modified physical properties are a modification of physical properties, wherein the modification encodes information. A method comprising: obtaining a representation of a three dimensional object having physical properties; obtaining information to encode; determining modified physical properties by modifying the physical properties to encode within the modified physical properties the information; and producing a tangible product, wherein the tangible product is the three dimensional object having the modified physical properties.

Abstract: An MENS microphone is provided in the present disclosure. The MENS microphone includes a fixing pole plate, a vibrating pole plate, an elastic arm; the fixing pole plate comprises a first fixing electrode, an insulating layer, a second fixing electrode that are superimposed sequentially, a through hole penetrating through the first fixing pole plate, the insulating layer and the second fixing pole plate; the vibrating pole plate is embedded in the through hole, comprises a main body and a plurality of spaced protrusions provided on two opposite side walls of the main body; the fixing pole plate comprises a plurality of spaced grooves recessed from two opposite inner walls of the fixing pole plate respectively toward corresponding outer walls, the grooves penetrates through the first fixing electrode, the insulating layer, the second fixing electrode; the protrusions are inserted into the grooves and correspond to the grooves one to one.

Abstract: An optical code reading process and a reading stability determining process are performed while suppressing an increase in the cost of a transfer system and avoiding a decrease in work efficiency. CCD performs imaging. Processor reads a one-dimensional code contained in image data taken by CCD, and outputs a signal when a reading process in which the number of reading successes related to the one-dimensional code reaches a determination reference value is completed. In addition, processor determines reading stability during a period from the first reading success to completion of the reading process and outputs predictive maintenance information (PMI) representing a determination result of reading stability.

Abstract: An image processing apparatus includes a detector to detect, from a multi-value image, a table that can display a character in each of a plurality of cells delimited by a plurality of ruled lines and a conformation unit that determines how to conform a color of a constituent element in the table based on information of the element in the table detected by the detector.

Abstract: A technique is described herein for using an optical scanning system to visit points in a field along a scanning path. The scanning path includes consecutive passes, corresponding to time-shifted instances of a same scan pattern. The plural passes visit different sets of points within the field, to provide different respective sparse traversals of the field. When motion occurs, the passes evenly distribute the deleterious effects of motion over the field. This produces motion artifacts that resemble blur. The human eye and image processing systems can more effectively handle the presence of blur compared to the kind of motion artifacts produced by a traditional single-pass scanning operation.

Abstract: An apparatus comprises a laser emitter configured to transmit laser energy across an air gap to a separate device, and a driver circuit electrically coupled to the laser emitter and to an electrical interface. The driver circuit is configured to detect voltage levels at the electrical interface including a first voltage level, a second voltage level, and a third voltage level, and drive the laser emitter at a first power level when detecting the first voltage level, drive the laser emitter at a second power level when detecting the second voltage level, and drive the laser emitter at a third power level intermediate the first and second power levels when detecting the third voltage level.

Abstract: A method for imaging objects includes illuminating an object with a light source of an imaging device, and receiving an illumination field reflected by the object. An aperture field that intercepts a pupil of the imaging device is an optical propagation of the illumination field at an aperture plane. The method includes receiving a portion of the aperture field onto a camera sensor, and receiving a sensor field of optical intensity. The method also includes iteratively centering the camera focus along the Fourier plane at different locations to produce a series of sensor fields and stitching together the sensor fields in the Fourier domain to generate an image. The method also includes determining a plurality of phase information for each sensor field in the series of sensor fields, applying the plurality of phase information to the image, receiving a plurality of illumination fields reflected by the object, and denoising the intensity of plurality of illumination fields using Fourier ptychography.

Abstract: Provided are an under-screen biometric identification apparatus and an electronic device. The under-screen biometric identification apparatus includes: a lens disposed under a display screen for receiving an optical signal formed by reflection of a human finger on the display screen, where the optical signal is used to detect biometric information of the finger; a lens barrel, where the lens is fixed in the lens barrel; and a support, where the support is connected to the lens barrel by means of threaded connection for supporting the lens barrel. An under-screen biometric identification apparatus and an electronic device provided in embodiments of the present application can improve the efficiency of under-screen biometric identification.

Abstract: A graphical indicator comprising a plurality of first header blocks, a plurality of second header blocks and a plurality of data blocks for forming an indicator matrix is provided. Each of the first and second header blocks has a header graphical micro-unit, and each of the data blocks has a data graphical micro-unit. An array area is formed by the second header blocks and the data blocks. A first virtual line and a second virtual line are respectively formed by virtual centers of the first and second header blocks, and an included angle between the first and second virtual lines is less than 90 degrees.

Abstract: Apparatus for generating a dynamic structured light pattern for optical tracking in three-dimensional space, comprises an array of lasers, such as a VCSEL laser array, to project light in a pattern into a three-dimensional space; and an optical element or elements arranged in cells. The cells are aligned with subsets of the laser array, and each cell individually applies a modulation, in particular an intensity modulation, to light from the laser or lasers of the subset, to provide a distinguishable and separately controllable part of the dynamic structured light pattern. A method of generating a structured light pattern is disclosed, in which light is provided from an array of lasers, and light is individually projected from subsets of the array of lasers to provide differentiated parts of the structured light pattern.

Abstract: In an example, a power factor corrector (PFC) including a first PFC input, a second PFC input, and a PFC output. The first PFC input is configured to receive an input power from a power source. The second PFC input is configured to receive a signal from a feedback circuit. The PFC output configured to output a direct current (DC) power, which is based on the input power at the first PFC input and the signal at the second PFC input. The feedback circuit is coupled to the PFC output and the second PFC input. The feedback circuit is configured to provide the signal at the second PFC input based on an input parameter related to a condition that is sensible by a sensor. The condition is related to operation of a load.

Abstract: A control system may perform functions including (i) storing data indicating an association between an optical identifier and a first robot, (ii) sending, to the first robot, data encoding the optical identifier for display by the first robot, and (iii) after sending the data encoding the optical identifier, sending, to a second robot, the data indicating the association between the optical identifier and the first robot. In some examples, the first robot may receive, from the control system, data encoding a second optical identifier of the first robot so that the first robot may display the second optical identifier instead of the first optical identifier. In some examples, a first robot may capture an image of an indication of a priority status of a second robot and perform an action based on comparing a first priority status of the first robot to the second priority status of the second robot.

Abstract: A phase deviation method determines an offset between a reference and suspect signal by analyzing a phase deviation surface created by computing a deviation metric for phase shift and then analyzing a surface formed from the deviation metrics for an array of offsets. The phase deviation method analyzes the deviation surface to determine an offset that minimizes phase deviation. This method is applied at increasing levels of detail to refine the determination of the offset.

Abstract: Provided are an under-screen biometric identification apparatus and an electronic device. The under-screen biometric identification apparatus includes: a lens disposed under a display screen for receiving an optical signal formed by reflection of a human finger on the display screen, where the optical signal is used to detect biometric information of the finger; a lens barrel, where the lens is fixed in the lens barrel; and a support, where the support is connected to the lens barrel by means of threaded connection for supporting the lens barrel. An under-screen biometric identification apparatus and an electronic device provided in embodiments of the present application can improve the efficiency of under-screen biometric identification.

Abstract: The disclosure provides a method and an apparatus for modifying imaging properties of a microlithographic optical system. In a method according to the disclosure, the imaging properties are modified by way of control signals coupled into the optical system by way of at least one interface. The values of the control signals that are in each case coupled in during the controlling for a desired modification of the imaging properties are ascertained on the basis of a model. The model is created by virtue of performing, in a learning phase in which the modification of the imaging properties that is in each case attained for different values of the control signals is ascertained, a successive individual adaptation of the model to the optical system. The learning phase is performed without prior specification of explicit information relating to internal mechanisms of action within the optical system.

Abstract: A system, method, and computer-readable medium for decoding an encoded geometry, comprising: scanning an encoded geometry, the scanning comprising scanning a plurality of multi-dimensional symbols of the encoded geometry; identifying each of the plurality of multi-dimensional symbols; decoding each identifier multi-dimensional symbol to provide encoded geometry information; accessing an encoded geometry repository; and, retrieving data associated with the encoded geometry information.

Abstract: The disclosure relates to determining whether an optical interferent is located on a sensor window and providing a way to identify and discard erroneous sensor data. An example system includes a housing, having a first sensor window and a second sensor window, a laser light source, and an optical sensor. The first window has a first property for deflecting water, and the second window has a second property for deflecting water different from the first property. The source is configured to generate a beam of light through the first window. One or more processors are configured to receive sensor data from the optical sensor and determine that an optical interferent is located on a surface of at least one of the first window and the sensor window based on a comparison between sensor data corresponding to the first window and sensor data corresponding to the second window.

Abstract: A control device controls electronic labels in an electronic label system. The control device includes a first interface that acquires a captured image in which a commodity is included. A second interface transmits display information to an electronic label. A processor identifies, based on a captured image received via the first interface, the commodity and the position of the commodity. The processor determines a display position on an electronic label for displaying commodity information relating to the commodity based on the position of the commodity, and generates display information including the display position and a display content based on the identified commodity and the display position. The processor transmits the generated display information to the electronic label via the second interface.

Abstract: A terminal for measuring at least one dimension of an object includes at least one imaging subsystem and an actuator. The at least one imaging subsystem includes an imaging optics assembly operable to focus an image onto an image sensor array. The imaging optics assembly has an optical axis. The actuator is operably connected to the at least one imaging subsystem for moving an angle of the optical axis relative to the terminal. The terminal is adapted to obtain first image data of the object and is operable to determine at least one of a height, a width, and a depth dimension of the object based on effecting the actuator to change the angle of the optical axis relative to the terminal to align the object in second image data with the object in the first image data, the second image data being different from the first image data.

Abstract: Disclosed are systems and methods for improving interactions with and between computers in content searching, generating, hosting and/or providing systems supported by or configured with personal computing devices, servers and/or platforms. The systems interact to identify and retrieve data within or across platforms, which can be used to improve the quality of data used in processing interactions between or among processors in such systems. The disclosed systems and methods provide systems and methods for automatically filtering a compressed media file for perceptual display of the media content in a modified, higher-resolution format. The disclosed systems and methods apply novel visual filtering techniques to a compressed media file that enable the display of the rendered media content to appear to be displayed as a modified, higher-resolution version of itself without actually modifying the compressed media file during rendering.

Abstract: In embodiments, apparatuses, methods, and storage media may be described for identifying a quick response (QR) image. A QR control code (QRCC) may be identified in the QR image based on a QR tag in the image. Based on the QRCC, a control command of an apparatus may be identified. Other embodiments may be described and/or claimed.

Abstract: Devices and methods described herein decode a sequence of coded symbols by guessing noise. In various embodiments, noise sequences are ordered, either during system initialization or on a periodic basis. Then, determining a codeword includes iteratively guessing a new noise sequence, removing its effect from received data symbols (e.g. by subtracting or using some other method of operational inversion), and checking whether the resulting data are a codeword using a codebook membership function. This process is deterministic, has bounded complexity, asymptotically achieves channel capacity as in convolutional codes, but has the decoding speed of a block code. In some embodiments, the decoder tests a bounded number of noise sequences, abandoning the search and declaring an erasure after these sequences are exhausted. Abandonment decoding nevertheless approximates maximum likelihood decoding within a tolerable bound and achieves channel capacity when the abandonment threshold is chosen appropriately.

Abstract: Embodiments related to local tone mapping for symbol reading. A local pixel neighborhood metric is determined for at least one raw pixel in a region-of-interest, which identifies on one or more raw pixels near the at least one raw pixel. A local mapping function is determined for the at least one raw pixel that maps the value of the raw pixel to a mapped pixel value with a mapped bit depth that is smaller than the bit depth associated with the raw image. The local mapping function is based on a value of at least one other raw pixel near the at least one raw pixel within the local pixel neighborhood metric, and at least one parameter determined based on the raw image. A mapped image is computed for the region-of-interest by applying the local mapping function to the raw image.

Abstract: A sensing system to process at least one valuable document is described herein. The system includes a light source to generate a light beam. The system also includes at least one light pipe having one or more diverting surfaces to direct the light beam at a predetermined angle of incidence onto the valuable document. At least one reflective surface, to receive a first portion of the light beam transmitted through the valuable document and to reflect off the first portion of the light beam towards the valuable document, is included. A light detector is configured to receive at least a second portion of the light beam re-transmitted through the valuable document.

Abstract: A portable data terminal including a main housing, a landscape-oriented large display screen disposed on a top front portion of the main housing and extending nearly an entire width of the main housing, a keyboard disposed on top of the main housing and rearward to the display screen, and left and right battery housings serving as ergonomic handle grips disposed on an underside of the main housing to accommodate two-handed grasping of the device, the keyboard being constructed and arranged to receive input from a pair of thumbs while corresponding hands are grasping and supporting the main housing. In an embodiment, the main housing includes a central housing portion extending downwardly on the underside of the main housing and having an extended front face for containing a scan engine/data reading mechanism and first and second cameras positioned on opposite lateral sides of the scan engine.

Abstract: One embodiment of a system and method for imaging a scene from a barcode scanner device may include creating a first and second optical paths of the scene, and then causing a switchable mirror disposed along the first and second optical paths to operate in a reflective state and a transparent state. The barcode scanner device may then capture images at different focal distances and with a different field-of-views when the switchable mirror is operating in the reflective state and the transparent state.

Abstract: There is provided a projection instruction device which generates a projection image to be projected on a parcel based on sensing information of the parcel, the device including: a processor; and a memory, in which by cooperating with the memory, the processor extracts a specific surface including the parcel from the sensing information of the parcel, and performs a process of generating the projection image based on only the specific surface.

Abstract: Embodiments include a system for integrating capture software functionality into other software applications including computer aided design (CAD) application, search application, database management application, email applications, network publishing applications, collaboration applications, copying and facsimile applications, manufacturing applications and similar programs. A user may utilize any of these applications to initiate a capture of an image or model. The applications may include an integrated capture functionality or message system to communicate with a capture application to initiate a capture. A separate or integrated conversion application may automatically be invoked to convert and return the image or model to the requesting application.

Abstract: In some embodiments, apparatuses and methods are provided herein useful to locating containers with low inventory in a shopping facility. Some of these embodiments include systems for identifying and determining the location of containers in a low inventory condition in shopping facilities, the system comprising: a container configured to hold merchandise items in a shopping facility; a light sensor disposed in the container, the light sensor calibrated to detect an ambient light level and to respond when the detected ambient light level exceeds a predetermined ambient light threshold; and a control circuit operatively coupled to the light sensor and configured to transmit a signal indicating a low inventory condition when the light sensor determines the detected ambient light level exceeds the predetermined ambient light threshold.

Abstract: Imagery captured by an autonomous robot is analyzed to discern digital watermark patterns. In some embodiments, identical but geometrically-inconsistent digital watermark patterns are discerned in an image frame, to aid in distinguishing multiple depicted instances of a particular item. In other embodiments, actions of the robot are controlled or altered in accordance with image processing performed by the robot on a digital watermark pattern. The technology is particularly described in the context of retail stores in which the watermark patterns are encoded, e.g., on product packaging, shelving, and shelf labels. A great variety of other features and arrangements are also detailed.

Abstract: A control apparatus for driving a laser diode comprises an output connection for connecting the laser diode, a regulation device for generating an output signal, a detector device which is designed to determine a regulation variable when the regulation device provides the output signal and the laser diode is connected to the output connection. The control apparatus furthermore comprises a computer device for providing a control signal for the regulation device, wherein the computer device provides the control signal independently of the regulation variable. The regulation device is designed in such a way that it generates a level for the output signal depending on the control signal and the determined regulation variable.

Abstract: A positioning and measuring system includes: an image scale supporting an object and having positioning mark sets and encoding pattern sets arranged in a two-dimensional array, each of the positioning mark sets including positioning marks, each of the encoding pattern sets including encoding patterns respectively disposed in gaps between the positioning marks; an image capturing device capturing measurement points of the object and an image scale to obtain composite images; a processor processing the composite images and determining one or multiple position relationships between the measurement points according to the encoding patterns and the positioning marks; and a driving mechanism, which is electrically connected to the processor and mechanically connected to the image capturing device or the image scale, and drives one of the image capturing device and the image scale to move relatively to the other of the image capturing device and the image scale.

Abstract: A correction plate has the same plane size as a small region obtained by equally dividing an image detection region. In addition, the correction plates whose number is equal to the number of small regions are prepared. In a maintenance mode, a plurality of correction plates are laid in the image detection region such that the entire image detection region is covered with the plurality of correction plates. In this state, scanning is performed and a correction image signal obtained by detecting fluorescent light from the correction plate is output. An acquisition unit of a console acquires a correction image signal and a creation unit creates a correction image on the basis of the correction image signal. A correction unit performs shading correction on the basis of the correction image.

Abstract: Various embodiments described herein relate to a scanning system for scanning and decoding direct part markings (DPM) type indicia. The scanning system includes an arrangement of an illumination module, a beam splitter module, and a telecentric lens assembly. The telecentric lens assembly is adapted to direct an in-line illumination received from the illumination module as collimated light to illuminate the DPM indicia. Upon illumination, a first portion of light reflected from embossments of the DPM indicia that are incident on the telecentric lens assembly at a defined angle is decoupled from an optical path between the telecentric lens assembly and the target. An imager is exposed to a second portion of reflected light, excluding the decoupled reflected light that is reflected from a substrate on the DPM indicia, in order to capture an image of the DPM indicia for decoding.

Abstract: An accessory shoe device capable of preventing fall-off of fastening screws, without increasing the number of component parts. An accessory shoe device is mounted on an exterior member of an electronic apparatus. A fastening screws fastens a holding member disposed inside the exterior member, the exterior member, a terminal member attached to the exterior member and having a terminal to be connected to the accessory, and an engaging member on which the accessory is mounted, in the mentioned order, from inside the exterior member. A flexible circuit board is disposed on a surface of the holding member opposite to a contact surface thereof in contact with the exterior member, and is electrically connected to the terminal. The flexible circuit board is formed with a slit having a predetermined shape, thereby being provided with a flexible portion for pressing down a head of the fastening screw.

Abstract: Disclosed is a method for processing asynchronous signals generated by a light sensor, the sensor having a matrix of pixels, the method including: —receiving the asynchronous signals, each signal being associated with a pixel in a group of pixels in the matrix, each signal including successive events issued by the associated pixel; —upon an occurrence of an event in one of the asynchronous signals, updating an integration value associated to the group by adding an additive value to the integration value; —if the integration value is greater than a predetermined threshold, generating an event in an outputted asynchronous signal.

Abstract: A system for generating a targeting beam includes a frame carrying at least one moveable arm, at least a portion of the moveable arm being moveable relative to the frame. A light source is carried by the frame, the light source being operable to generate a light beam. A motor is carried by the frame, the motor being operable to create oscillatory motion of the moveable arm to cause the light beam generated by the light source to oscillate through a range of motion to create a targeting beam.

Abstract: An optical system includes a light source, an interferometer, and a detector. The interferometer includes a scanner and a lens system disposed downstream of the scanner. The scanner is configured to direct a portion of the optical beam along one of a plurality of different directions within a scanning range. The lens system is configured to project the portion of optical beam to an imaging area defined by a field of view of the optical system, the lens system comprising a first lens, wherein an aspect of the first lens is adjustable so as to render the field of view adjustable without adjusting the scanning range of the scanner. The detector is configured to receive a reflected portion of the optical beam that reflects from an object placed within the imaging area.

Abstract: A method of character recognition is implemented by an electronic device to recognize, in an image representing an object comprising at least one raised character, called a basic image, at least one raised character of the basic image. The method includes: a phase of processing at least one image, the phase including at least one implementation of a Phong reflection module and delivering at least one identification image; and a phase of identifying characters as a function of the basic image and the at least one identification image.

Abstract: Provided are an under-screen biometric identification apparatus and an electronic device. The under-screen biometric identification apparatus includes: a lens disposed under a display screen for receiving an optical signal formed by reflection of a human finger on the display screen, where the optical signal is used to detect biometric information of the finger; a lens barrel, where the lens is fixed in the lens barrel; and a support, where the support is connected to the lens barrel by means of threaded connection for supporting the lens barrel. An under-screen biometric identification apparatus and an electronic device provided in embodiments of the present application can improve the efficiency of under-screen biometric identification.

Abstract: A method of reading an optical code (20) is provided that has a plurality of code words, wherein image data having the optical code (20) are recorded and evaluated to read out the code words, and wherein it is determined by a test process whether the code is read correctly. In this respect, a code word at at least one position of the code (20) is replaced with a code word known for this position in a pre-correction and the test process is carried out after the pre-correction.

Abstract: A method performed by a computer, the method includes obtaining a plurality of images each of which includes a plurality of animals, the plurality of animals being attached with a plurality of attachment objects respectively, the attachment objects having respective different colors, using at least one image among the plurality of images, detecting the colors of the plurality of attachment objects respectively, using the plurality of images, detecting movements of the plurality of respective attachment objects, based on the colors of the plurality of attachment objects, and in accordance with the respective movements of the plurality of attachment objects, determining respective activity quantities of the plurality of animals.

Abstract: A contactless and battery-less interface for component identification and remote sensing is disclosed. The interface includes a near-field electromagnetic coupling for electrical power transfer and a full duplex optical coupling for bi-directional serial communication interface. The interface provides a low-cost and low-power Reduced Instruction Set Computing (RISC) microcontroller with a minimum of components and a low production cost, wherein a communication and power interface can be provided between components such as a gamma camera head and a collimator, without requiring electrical contacts between interface circuit assemblies on the respective parts.

Abstract: A method for automated authentication of a security label comprises capturing a first image of the security label under a first lighting condition and capturing at least a second image of the security label under a second lighting condition. Further, the first image and the second image are verified to check whether the first image and the second image meet pre-defined expectation under the first lighting condition and the second lighting condition respectively. Authenticity of the security label is confirmed by the processor if the expectation is met.

Abstract: As banking transactions are processed by a bank teller, all of the relevant information with respect to the transaction (e.g., dollar amount) is captured in an electronic file. Each of the electronic files from the various branches of the bank are forwarded to a central back office processing center where the electronic files are combined into a single Transaction Repository. At the end of the branch day, all of the paper associated with the transactions is forwarded from the branches to the back office processing center. The paper transactions are imaged in the conventional manner and the Magnetic Ink Character Recognition (MICR) data is read from the paper. The present invention then automatically correlates the images and MICR data captured from the paper with the complete transaction record contained in the Transaction Repository. Most of the conventional back office processing can now be performed without the need to perform character recognition and without the need for excess human intervention.

Abstract: A system for multifunction peripheral assisted optical mark recognition uses a scanner to scan at least one printed page to generate a scanned image of the at least one printed page and to optically detect a presence of a visible label on the scanned image. Then, the multifunction peripheral may extract a model identification and a template identification from the visible label, select a template, identifying locations from which image data is to be extracted from the scanned image, select a model, specifically identifying at least two types of acceptable marks within the image data to be extracted from the scanned image, and perform optical mark recognition on the location from which image data is to be extracted identified by the template using the at least two types of acceptable marks identified by the model to extract useful data from the image data.

Abstract: The present application relates to the field of computer technologies, and in particular, to a method for controlling display of a screen of a mobile terminal, and a mobile terminal. In the method for controlling the display of the screen of the mobile terminal, the mobile terminal can detect whether a beam emitted by a recognition apparatus arrives. When the mobile terminal detects that a beam arrives, the mobile terminal can determine whether the detected beam is in an inclined state. Once the mobile terminal detects that the beam is in the inclined state, the mobile terminal can adjust a display direction of interface content on a screen of the mobile terminal based on the inclined state of the beam.

Abstract: An image processing apparatus includes a correction unit configured to execute shading correction on a first captured image and a second captured image respectively captured by a first image capturing unit and a second image capturing unit having different optical axes, respectively corresponding to a left eye and a right eye of a user, to generate a first display image and a second display image respectively. A clipping unit clips the first display image and the second display image to each include a three-dimensional view area where the user views the object in three dimensions. The correction unit executes the shading correction with a position of a center of the three-dimensional view area of the first display image and the second display image set to be at a center.

Abstract: An image reading device includes a reading unit to read a sheet image and a turning unit to turn relative to the reading unit. The turning unit includes a conveyance roller to convey a sheet to a reading position, a discharged sheet stacking tray having the read sheet, a discharge roller to discharge the sheet to the discharged sheet stacking tray, and a communication unit to wirelessly receive data from outside the image reading device. Where the sheet is stacked, the discharged sheet stacking tray includes a first region and a second region downstream of the first region. The first region has a sheet regulating portion at a front side of the first region located higher than a bottom face where the sheet is stacked, and the second region does not have the sheet regulating portion. A reading part to read communication unit information is disposed overlapping the second region.

Abstract: A disk device includes a recording medium on which data is recorded, a decoding circuit configured to decode data read from the recording medium, and a control circuit. The control circuit is configured to cause first data associated with a target sector referenced in a read request to be read from a target track of the recording medium, second data associated with a non-target sector that is not referenced in the read request to be read from the recording medium after the first data is read from the recording medium, and decoding of the first data to be completed by the decoding circuit after the second data is read from the recording medium.