Abstract: A motor vehicle including a holding device configured to retain objects. The holding device includes at least one holding unit having a base, and a holding structure that extends away from the base in a primary direction and that contains two flexurally elastic lateral jaws that extend, proceeding from the base in the primary direction, to a head region, and a plurality of rigid coupling stays that are articulated on both lateral jaws and are mutually spaced apart in the primary direction. At least one of the flexurally elastic lateral jaws forms a holding jaw for engaging on a respective one of the objects.

Abstract: An embodiment includes first and second brackets to respectively couple to a trailer bed; first and second arms to respectively couple to the first and second brackets; wherein (a) in a first orientation the first arm is to couple to the bed non-orthogonally with the bed raised a first distance and with the first arm not extending below wheels of the trailer; (b) in a second orientation the first arm is to couple to the bed orthogonally with the bed being raised a second distance which is less than the first distance and with the first arm extending to a level of the bottom of the wheels, and (c) in a third orientation the first arm is to couple to the bed orthogonally with the bed being raised a third distance, which is between 0 inches and the second distance, and with the first arm extending below the wheels.

Abstract: A ramp door closure apparatus is provided for recreational vehicles, having a recessed linear actuator both draw a cable from a mounting bracket on the ramp door adjacent to the RV opening, to raise and lower the ramp door, and then cam a locking pin fixed to the ramp door into a seal tight position after the ramp door is raised. Upon release of the locking pin from the cam when opening the door, an initial push is provided to facilitate downward rotation of the ramp door. The linear actuator is selectively detachable from the cable so as to allow manual raising and lowering of the ramp door from within the RV, by means of releasable pins accessed in the mounting structure.

Abstract: A roadway transport system includes a carrier-vehicle and one or more controller-circuits. The carrier-vehicle receives one or more passenger-vehicles configured to autonomously dock with the carrier-vehicle for traveling on a roadway. The communication-device is operable to communicate with the one or more passenger-vehicles. The one or more controller-circuits are in communication with the communication-device. The one or more controller-circuits operate the communication-device to coordinate docking of the one or more passenger-vehicles with the carrier-vehicle.

Abstract: A tank and a method of carrying a load and discharging a load therefrom. The tank includes a tank assembly having a first wall that bounds and defines a first compartment for carrying a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. The tank assembly includes an air piping system that is selectively actuated to place the first compartment and the second compartment under substantially similar or substantially equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.

Abstract: A tank and a method of holding a load and discharging a load therefrom. The tank includes a first wall that bounds and defines a first compartment for holding a load therein and a second wall spaced outwardly from at least a portion of the first wall; wherein a second compartment is defined between the first wall and the second wall. The tank assembly includes an air piping system that is selectively actuated to place the first compartment and the second compartment under substantially similar or substantially equal air pressure. In one example the air piping system pumps air into the first compartment and the second compartment. In another example the air piping system evacuates air from the first and second compartments.

Abstract: A tie-down device configured to secure a position of an object is described that includes an extendable anchor that is extendable from a body of the tie-down device and configured to secure to a location, a spool comprising a circular plate including a first plurality of ratchet teeth along a circumference of the circular plate, a handle pivotably coupled to the body and including a second plurality of ratchet teeth, and a tab configured to be pivoted between a first position and a second position. The first position of the tab configured to allow the cog to engage with the spool such that the spool does not spin freely, and the second position of the tab configured to allow the cog to disengage from the spool such that the spool spins freely. Various embodiments of the tie-down device are described, as well as related systems, methods, and articles of manufacture.

Abstract: Provided is a cap-type vent having a porous waterproof air-permeable sheet inserted and mounted in a cap housing having fixing ribs formed therein, and fixing the waterproof air-permeable sheet by a supporting member made from an elastic material. The provided cap-type vent comprises a supporting member having one end coupled to an object, a waterproof air-permeable sheet disposed at the other end of the supporting member; and a cap housing formed in a cup shape having an opening formed at one end of the cup shape, and having the supporting member and the waterproof air-permeable sheet inserted through the opening, the supporting member is formed with an air circulation hole formed by penetrating the supporting member, and the inner side surface of the cap housing is formed with a fixing rib is configured to fix the supporting member by contacting the outer sidewall of the supporting member.

Abstract: The light-guiding optical system comprises at least one light source (2) and a light guide (1) for coupling and guiding light rays (10) emitted by a light source (2). Furthermore, the light guide (1) may comprise a decoupling surface (4) on its rear side (13) and an output surface (3) for the exit of light rays (10) decoupled by the decoupling surface (4) on an opposite front side (14). The decoupling surface (4) comprises: (i) first decoupling elements (5) configured to decouple light rays (10) falling onto the first decoupling elements (5) out of the light guide (1) approximately in a pre-determined first output direction (p) to fulfill a first light function, and (ii) a second decoupling element (6) configured to uncouple light rays (10) falling onto the second decoupling elements (6) out of the light guide (1) approximately in a pre-determined second output direction (d), which is deflected from the first output direction (p), to fulfill the second light function.

Abstract: A method for calibrating an electromagnetic radiation-emitting device configured to emit electromagnetic radiation using a sensor configured to detect electromagnetic radiation emitted by the electromagnetic radiation-emitting device includes projecting a pattern onto a projection surface by way of the emitted electromagnetic radiation, acquiring an image of the projection of the pattern using the sensor, and calculating at least one trajectory in an image plane of the sensor that describes a propagation of the emitted electromagnetic radiation based on a position of a characteristic feature of the pattern in the image and on a further item of information. The method further includes calculating a specific feature along an associated trajectory and calculating an incorrect position of the device by evaluating a geometric correspondence relationship between points in a world coordinate system and their image points in the image plane of the sensor.

Abstract: A motor vehicle is provided that includes a lighting module configured that generates a set of symbols on the ground in the surroundings of the motor vehicle and a control device that controls operation of the lighting module. The control device automatically adapts the relative position of the set of symbols (SY) to the motor vehicle such that at least part of the set of symbols is fixed in a predetermined location on the ground ahead of the motor vehicle when the distance of the motor vehicle to the predetermined location, on its way to the predetermined location, is less than a predetermined distance. The control device controls the operation of the lighting module such that the set of symbols is already generated before the distance of the motor vehicle to the predetermined location, on its way to the predetermined location, is less than the predetermined distance.

Abstract: A lighting system of a trailer. A rear end of the trailer includes a top edge, a bottom edge opposite the top edge, and side edges. At least one marker light is coupled to the top edge of the rear end of the trailer. The marker light is electrically coupled to an electrical system of a truck so that the marker light is activated when the truck is engaged in reverse.

Abstract: To provide a semiconductor device which suppresses a message image projected by a mobile from varying from a desired position. A semiconductor device has a first area decision part which decides a first area onto which a message image is projected, based on movement information of a mobile. The semiconductor device has a delay period calculation part which calculates a delay period being a period from a first time for projecting the message image onto the first area to a second time when the message image is projectable. Also, the semiconductor device has a second area decision part which adjusts the first area, based on the delay period to decide a second area. Further, the semiconductor device has an image signal conversion part which converts a message image signal according to the second area.

Abstract: Instead of binary brake lights on a car, the present disclosure provides methods and apparatus to provide an indicator of brake magnitude of the car. A pressure sensor, accelerometer, or other means of approximating the magnitude of a braking force are coupled to a control module, which itself is coupled to auxiliary lights mounted on the car. These auxiliary lights are capable of displaying a pulse, color, or a pattern correlated to the magnitude of the braking force. This gives drivers behind the car an indication of how quickly to respond to a braking car.

Abstract: A semiconductor device has a position estimation part calculating an estimated position of a mobile at a scheduled time to project a message image, based on movement information of the mobile, a reference image signal output part deciding a reference area being an area to project a reference image, based on a relative positional relation between the mobile at the estimated position and the projection area, and outputting a reference image signal being a signal of the reference image, a test image signal acquisition part acquiring a test image signal being a signal of an image obtained by imaging the reference area with the reference image projected thereon, and an image adjustment part adjusting the message image signal, based on the reference image signal and the test image signal.

Abstract: A visor for use in a vehicle is disclosed. The visor comprises a pivot rod and a first and second shell being engagable to form a visor body. The visor also comprises a vanity and a mirror having at least one clear portion arranged at or near an end thereof. The visor also comprises a circuit board secured to the first shell and a light emitting diode secured to a surface of the circuit board. The visor also comprises a ramp arranged in a back surface of the mirror wherein the ramp is aligned with at least one clear portion of the mirror. The visor mirror having a ramp arranged therein may allow for light to be redirected towards the user of the mirror from the LED.

Abstract: A device for controlling a matrix of light sources of a luminous module for lighting the interior of the passenger compartment of a motor vehicle. The device includes a central unit configured to receive an instruction to activate one among a plurality of preset functions for lighting the passenger compartment, and functionally connected to a plurality of command devices, each of which is configured to command the activation of a group of light sources of the matrix. The central unit is configured to select a plurality of light sources of the matrix to activate to produce the lighting function, and to transmit instructions to the command devices in order to command the activation of the selected light sources.

Abstract: A motor vehicle includes a lighting module that generates a symbol on the ground in the surroundings of the motor vehicle, a surrounding sensor system that detects sensor information in a region in the surroundings of the motor vehicle, and a controller designed to control the lighting module depending on the sensor information such that the symbol is generated automatically by the lighting module in a ground region between the motor vehicle and another road user as soon as the distance between the motor vehicle and the other road user falls below a specified threshold according to the sensor information.

Abstract: A steering wheel horn assembly having two sections with an annular electrical circuit board member interposed and disposed between the sections and electrically coupled to a power source, an electrical ground, and an electrical horn. Also disposed within the two sections is an annular button membrane with a plurality of deformably resilient horn buttons, wherein each of the plurality of deformably resilient horn buttons have a terminal front surface and a rear surface opposing the terminal front surface and that is disposed adjacent to the annular electrical circuit board member, have a static position along a button translation path projecting through one of the plurality enclosed apertures, and have a depressed position with the rear surface directly coupled to the annular electrical circuit board member and electrically completing a circuit on the annular electrical circuit board member and causing the electrical horn to generate the audible sound.

Abstract: A notification device for a mobile unit according to an embodiment includes, for example: a storage unit that stores therein first sound data; a sound output control unit that outputs a notification sound based on the first sound data, from a sound output unit provided on the mobile unit; a generation unit that generates second sound data by performing predetermined processing on a location of sound falling, while causing the first sound data to follow a cycle of the notification sound, the predetermined processing being different from processing on a location of sound rising; and a light source drive control unit that causes a light source unit provided on the mobile unit to emit light in accordance with the intensity of a sound expressed by the second sound data.

Abstract: In at least one embodiment, an apparatus for generating a simulated vehicle sound is provided. At least one parameter module receives a first driver throttle signal and to transmit a first input signal indicative of a first simulated vehicle sound. An engine sound generator block audibly generates a first simulated vehicle sound in response to the first input signal. An engine sound removal block is operably coupled to a microphone that receives a first microphone input signal. The first microphone input signal includes first environmental noise associated with a vehicle exterior environment and the first simulated vehicle sound. The engine sound removal block is configured to filter the first simulated vehicle sound from the first microphone input signal to determine the first environmental noise. The engine sound generator generates a second simulated vehicle sound that is louder than the first environmental noise.

Abstract: A vehicle drive assist system includes: an operation part that is operable from a neutral position to a first position at one side or a second position at another side; a switch part that outputs an ON signal or an OFF signal in accordance with a position of the operation part; a control part that generates a turn signal in response to an output of the switch part; a detection part that detects a rear side situation of a vehicle; and an alert part that performs an alert based on an output of the ON signal of the switch part and a detection result of the detection part, wherein in a case where an operation to the second position is performed when the turn signal in accordance with an operation to the first position is generated or in a case where an operation to the second position is performed after the turn signal in accordance with an operation to the first position is generated, a control that performs only a visual alert is performed.

Abstract: A system and method configured to monitor use conditions of a vehicle and provide feedback to a user of the vehicle to maintain use within certain parameters is described. The description includes a plurality of sensors located proximate to the vehicle, each sensor configured to monitor at least one vehicle parameter, the plurality of sensors selected from an accelerometer, speed, temperature, mileage, oil level, oil pressure, run-time and location sensors, each sensor generating a signal encapsulating the monitored vehicle parameter and transmitting the generated signal to a control unit. The description includes a control unit that receives the generated signal from each of a plurality of sensors, the control unit including a memory that stores the received signal and selectively combines the received signal with other signals received from others of the plurality of sensors. The description includes a first transmitter coupled to the control unit capable of transmitting the combined signal.

Abstract: The present teaching relates to method, system, and medium, for generating an augmented alert in a hybrid vehicle. First information indicating an upcoming switch in an operating mode of the vehicle is received, which specifies a set of tasks, arranged in an order, to be completed by a driver in the vehicle to achieve the upcoming switch, and a task duration for each of the set of tasks by which the task is to be completed. A current state of the driver is obtained and used to determine a set of warnings to alert the driver to perform the set of tasks. Each warning corresponds to a task in the set of tasks and is created based on the current state of the driver. A warning schedule is generated based on the set of warnings in the order of the set of tasks and transmitted so that warnings in the warning schedule are delivered to the driver.

Abstract: To detect front-parked vehicles at night (i.e. a vehicle is parked with its head facing the inside of a parking space), a detection device uses the light beam from a passing-by vehicle to extract at least a reflection of at least a tail light or at least a portion of a back bumper from an image captured for a parking space.

Abstract: Specifically programmed, integrated motor vehicle dangerous driving warning and control system and methods comprising at least one specialized communication computer machine including electronic artificial intelligence expert system decision making capability further comprising one or more motor vehicle electronic sensors for monitoring the motor vehicle and for monitoring activities of the driver and/or passengers including activities related to the use of cellular telephones and/or other wireless communication devices and further comprising electronic communications transceiver assemblies for communications with external sensor networks for monitoring dangerous driving situations, weather conditions, roadway conditions, pedestrian congestion and motor vehicle traffic congestion conditions to derive warning and/or control signals for warning the driver of dangerous driving situations and/or for controlling the motor vehicle driver use of a cellular telephone and/or other wireless communication devices.

Abstract: A work screen display system including a position information obtaining unit for obtaining position information on a work vehicle based on positioning correction information supplied from a first reference station; a region shape determination unit for determining a shape of a specific region where the work vehicle performs autonomous travel, based on positioning correction information supplied from a second reference station; and a display control unit for displaying, on a display unit, a specific region indication section indicating the specific region determined by the region shape determination unit.

Abstract: A laminated glass for vehicle with an inner mirror mounted to an opening of a vehicle body includes a laminated glass including a vehicle outside glass plate, and a vehicle inside glass plate bonded to the vehicle outside glass plate via an intermediate film; and an inner mirror mounted to the laminated glass via a mirror base. A plate thickness of the vehicle inside glass plate is less than a plate thickness of the vehicle outside glass plate, and is 1.3 mm or less. The vehicle inside glass plate has a cutout portion in at least a part of an upper edge. The mirror base is mounted to a vehicle interior surface of the vehicle outside glass plate through the cutout portion of the vehicle inside glass plate.

Abstract: A vehicle door mirror includes a mirror housing accommodating an electrical component therein, a base member made from a resin, and a shaft having a cord through hole through which a cord that is to be connected to the electrical component is inserted, the shaft being standingly provided on the base member so as to pivotably support a base end portion of the mirror housing. The base member has a slit formed therein. The slit has an outer end opening on a side edge of the base member so that the cord guided out from the cord through hole toward the base member side can be inserted through the slit. A linking part that links paired mutually opposing side faces of the slit together via an inner end part of the slit is formed on the base member so as to have a shape protruding downward.

Abstract: Method and apparatus are disclosed for overlay interfaces for rearview mirror displays. An example vehicle includes a front-view camera to capture a front-view image, a rearview camera to capture a rearview image, and a controller. The controller is configured to determine lane line projections and vehicle-width projections based on the front-view image and generate an overlay interface by overlaying the lane line projections and the vehicle-width projections onto the rearview image. The example vehicle also includes a rearview mirror display to present the overlay interface.

Abstract: This disclosure relates to a running board for a motor vehicle, and in particular relates to a running board with a roof access step and a corresponding method of using the same. An example running board includes a deck having a first section and a second section. The first section is configured to move between a first position in which the first section is substantially flush with the second section, and a second position in which the first section is raised relative to the second section. In the second position, the first section of the deck provides a roof access step.

Abstract: A safety rail system for a flatbed. The system is portable, installs and dismantles in minutes, and is adaptable to any flatbed trailer or truck having post mounting side pockets. The system collapses into a compact package for stowing and transport. The system utilizes existing post mounting side pockets to establish a fence line that supports one or more cable rails. The cable(s) of the cable rails are drawn taut to provide a firm barrier to protect equipment and personnel from falling off the edge of the flatbed.

Abstract: A tailgate assembly includes, among other things, a tailgate coupled to a vehicle body, and a step moveable from a stowed position where the step is held within a chamber of the tailgate to a step position where the step provides a step surface to a vehicle cargo bed. A method includes, among other things, moving a step from a stowed position where the step is held within a chamber of a tailgate to a step position where the step provides a step surface to a vehicle cargo bed.

Abstract: A multipurpose utility rack for a UTV (utility task vehicle) is disclosed. An upper assembly containing a rectangular table portion rigidly connects a first side rail generally parallel to a second side rail. A first side assembly forms a third side rail with one or more brackets that connect the first side assembly to the upper assembly. A second side assembly forms a fourth side rail with one or more brackets that connect the second side assembly to the upper assembly. The first side assembly, the second side assembly, the upper assembly, the third side rail, or the fourth side rail may be formed of plastic.

Abstract: A protective case for digital products, including a protective bumper body, wherein the protective bumper body includes a holding slot for receiving a mobile terminal, a first arm positioned on a first side of the protective bumper body, wherein the first arm includes a first end connected to the protective bumper body, a second end detachably connected to the protective bumper body, and a first connecting arm connected with the first end and the second end, a second arm positioned on a second side of the protective bumper body, wherein the second arm includes a third end connected to the protective bumper body, a fourth end detachably connected to the protective bumper body, and a second connecting arm connected with the third end and the fourth end.

Abstract: An attachable holder has a holder portion with attachment openings in a base portion and a cover. The cover fits over the holder portion and is frictionally held in place. Attachment means such as cable ties or hook and loop straps is used to secure the attachable holder to a handle on a tool such as a weed trimmer, lawn mower etc. to hold safety glasses, ear protection, cell phones, etc. In one embodiment, the cover has retainer sockets or retainer slots in each end that releasably fit within retainer balls or retainer ridges found on the upper surface of the holder portion. In one embodiment, flexible clips and attachment wedges are used to secure the attachable holder to the handle. In another embodiment the cover is connected to the holder portion by an integrally formed hinge that allows the cover to close and open.

Abstract: A movable cargo rack assembly for installation on the cargo bed rails of a vehicle including a support assembly and a main arch that includes a leading edge, trailing edge, top segment, and side segments. The side segments extend downward from the top segment to body-side ends with insert portions that are received in stake holes in the cargo bed rails. The support assembly has two support arms with attachment ends that are pivotally connected to the cargo bed rails. The support assembly is pivotally connected to the main arch and is movable between a first configuration where the main arch is supported in two forward stake holes and the support arms extend out at an angle from the trailing edge and a second configuration where the main arch is supported in two rearward stake holes and the support arms extend out at an angle from the leading edge.

Abstract: A storage unit intended for mounting on the rear of a golf cart type vehicle is designed to protrude from the rear of the golf cart to provide more storage space. The storage unit is further designed to be removable, and may be subdivided with movable partitions. Several features are described for its attachment onto the rear of the golf cart in different ways, including specific types of attachments and frameworks for use with and without rear shelf wells on the golf cart. These are designed for greater security in holding the storage unit onto the golf cart, and include adjustable or removable bottom protrusions for use with a rear shelf well, or the attachment frame system without a rear shelf well. In addition, a system is described to allow the storage unit to be folded, such that it can be more compactly folded and shipped, stored or transported.

Abstract: An automatic securement pin system for a hitch connector includes a hitch bar having an insert end configured to be inserted into a hitch receiver, a securement pin coupled to the hitch bar, and an actuator coupled to the securement pin. The actuator is configured to engage the hitch receiver to displace the securement pin from an open position.

Abstract: A hitch-mounted load carrier includes a connecting member configured to be inserted into a hitch receiver and a locking mechanism coupled to the connecting member and configured to secure the connecting member inside the hitch receiver. The locking mechanism includes a first actuator disposed in an interior of the connecting member, a second actuator opposite the first actuator disposed in the interior of the connecting member and coupled to the first actuator by a shaft, and a first wedge disposed at least partially in the interior of the connecting member. A first surface of the first wedge contacts the first actuator and a second surface of the first wedge contacts the second actuator. The first and second actuators are configured to radially translate the first wedge.

Abstract: A back rest for a seat, in particular, vehicle seat, comprises a seat paneling and an acoustic element being an element contributing to forming the seat paneling. The seat paneling is in an operative connection with an actuator of the acoustic element in an acoustic area. The acoustic area can be made to vibrate by driving the actuator for making the acoustic area put out acoustic signals into a back space behind the back rest.

Abstract: An electronic device holder is provided comprising a housing defining a space and having an open end portion. The housing includes a first portion slidably coupled to a second portion. A flexible member is positioned around the housing. A retention feature is disposed on the second portion. The retention feature extends into the space.

Abstract: A fabric processing method and component (e.g., a vehicle component) includes providing and/or arranging a first fabric charge and a second fabric charge. A multi-piece fabric assembly is formed for single stage draping by stitching together the first and second fabric charges along a neutral stitching path. The multi-piece fabric assembly is formed into a three-dimensional shape and is then impregnated with a polymeric material to form the component.

Abstract: A ceiling material for a vehicle includes a ceiling interior material facing a vehicle cabin inner surface of a roof panel for a vehicle, and a reinforcement member arranged on an upper surface of the ceiling interior material on the side of the roof panel. The reinforcement member may include a rod-like member and supporting members for respectively supporting at least two sections in a slidable manner in a longitudinal direction of the rod-like member. Each of the supporting members includes a fitting portion which allows the rod-like member to be fitted from a radial direction.

Abstract: A vehicle wheel includes: a pair of vertical walls that are provided upright on an outer circumferential surface of a well portion and extend in a circumferential direction; and a sub air chamber member that is provided between the pair of vertical walls to be held by frictional force generated between the sub air chamber member and the pair of vertical walls and includes an extending wall portion.

Abstract: An object of the present invention is to provide a power supply device that suppresses deformation of an exterior member. A power supply device is an apparatus for supplying power from a vehicle body to a sliding door. The power device includes: an exterior member, a vehicle-body-side holding portion for holding one end of the exterior member, and a door-side holding portion for holding the other end of the exterior member. The power supply device further includes: a connecting portion that can connect and disconnect the vehicle-body-side holding portion and the door-side holding portion while bending the exterior member in a state in which the vehicle-body-side holding portion holds the one end of the exterior member and the door-side holding portion holds the other end of the exterior member.

Abstract: A wire harness that includes a cylindrical connector shell; a cylindrical flexible conductor; a fixing member for fixing the flexible conductor to an end of the connector shell; and a cover that covers the connector shell and the flexible conductor, wherein: the cover is fixed through fastening to the connector shell by a fixing band that is arranged on an outer circumferential surface of a leading end of the cover, and the cover includes: a connector fastener that is fastened to the connector shell by the fixing band; a covering that covers the fixing member; and a rib that protrudes inward between the connector fastener and the covering.

Abstract: A grommet includes a grommet body, an inner protector, and an outer member. The inner protector includes a protector body accommodated in a protector accommodating chamber of the grommet body. The protector body includes a rib on an outer surface of the protector body. The rib projects toward an inner surface of the protector accommodating chamber of the grommet body and extends along a direction toward a lower side from an upper side with the grommet installed in a vehicle body.

Abstract: An instrument control system and method for utilizing backchannel bandwidth of a display channel to transmit data and commands to instruments. The system and method may be implemented with respect to a number of instruments disposed within a vehicle. The backchannel bandwidth may be utilized by a number of instruments forming an instrument cluster. The transmission of display data and instrument data may utilize a processor configured to deserialize data provided in a serialized format conforming to known digital protocol.

Abstract: A circuit assemblage for carrying out a comparison between a first signal and a second signal in consideration of a reference signal, the circuit assemblage encompassing: a first channel in which the first signal is processed; and a second channel in which the second signal is processed, a first differential amplifier, which obtains a first difference between the first signal and the reference signal, and a first unit for obtaining an absolute value, which obtains a first absolute value from the first difference, being provided in the first channel, and a second differential amplifier, which obtains a second difference between the second signal and the reference signal, and a second unit for obtaining an absolute value, which obtains a second absolute value from the second difference, being provided in the second channel; and a comparator that compares the first absolute value with the second absolute value.