Abstract: An unauthorized message in an in-vehicle network is more accurately detected. A detection device includes: a monitoring unit configured to monitor, as target messages, an authorized message being periodically transmitted and the unauthorized message in the in-vehicle network, and monitor a reference message being periodically transmitted; a calculation unit configured to, based on a monitoring result of the monitoring unit, calculate a time difference between a time corresponding to a transmission time of the target message and a time corresponding to a transmission time of the reference message; and a detection unit configured to, based on the time difference calculated by the calculation unit, perform a detection process of detecting the unauthorized message.

Abstract: According to one aspect of the present disclosure, a printed circuit board includes: an insulating base film; and a plurality of wiring portions formed on a surface of the base film, wherein the wiring portions include a seed layer that is directly or indirectly layered on the surface of the base film and a metal layer that is layered on the seed layer, wherein the base film has a wiring area including the plurality of wiring portions and a non-wiring area not including the wiring portions, wherein the plurality of wiring portions include at least one outermost boundary wiring portion and a plurality of inner wiring portions other than the outermost boundary wiring portion, wherein the outermost boundary wiring portion is formed on an outermost side of the base film in the wiring area and at a boundary between the wiring area and the non-wiring area, wherein an average width of the outermost boundary wiring portion is 30 ?m or more, wherein an average width of the inner wiring portions is 20 ?m or less, and w

Abstract: A detection device includes: a monitoring unit configured to monitor, as target messages, an authorized message being periodically transmitted and the unauthorized message in the in-vehicle network; and a generation unit configured to generate a reference time to be used in a detection process of detecting the unauthorized message; a detection unit configured to perform detection process, based on time difference between a time corresponding to a transmission time of target message based on a monitoring result of the monitoring unit, and the reference time generated by the generation unit. When target message has been determined to be abnormal in the detection process, the generation unit, based on a value obtained by adding a latest statistical value to the reference time, generates a new reference time to be used in the detection process for a target message to be transmitted after the target message having been determined to be abnormal.

Abstract: A high-frequency circuit includes a first dielectric layer, a circuit layer, a second dielectric layer arranged in this order, the circuit layer includes a transmission line of a high-frequency signal and a ground pattern disposed around the transmission line. An electromagnetic wave shield is disposed in the first dielectric layer and the second dielectric layer around the transmission line. The electromagnetic wave shield includes a first ground electric conductor formed on an inner surface of at least one first hole formed to extend through the first dielectric layer without extending through the ground pattern, and a second ground electric conductor formed on an inner surface of at least one second hole formed to extend through the second dielectric layer without extending through the ground pattern. The first ground electric conductor and the second ground electric conductor are each electrically connected to the ground pattern.

Abstract: A detection device includes: a message acquisition unit configured to acquire one or a plurality of transmission messages in the in-vehicle network; a data acquisition unit configured to acquire a set of a plurality of types of data that are included in the transmission messages and that correspond to the same time; a storage unit configured to store therein a detection condition being based on a plurality of the sets that respectively correspond to a plurality of times; a calculation unit configured to calculate an estimated error of the data of a type to be monitored in the set, based on the set and the detection condition; and a determination unit configured to determine whether or not the transmission message corresponding to the data of the type to be monitored is an unauthorized message, based on the estimated error and on an estimated error that was calculated in the past.

Abstract: A planar coil element of the present invention includes an insulating base film having a first surface and a second surface opposite to the first surface, a first conductive pattern deposited on the first surface side of the insulating base film, and a first insulating layer covering the first conductive pattern on the first surface side, in which the first conductive pattern includes a core body and a widening layer deposited by plating on the outer surface of the core body, the core body includes a thin conductive layer on the insulating base film, and the ratio of the average thickness of the first conductive pattern to the average circuit pitch of the first conductive pattern is 1/2 or more and 5 or less.

Abstract: A communication device that can prevent the transmission of a message from being continuously hindered over a long period of time, a communication system and a message arbitration method are provided. The communication device transmits and receives a message to and from another device connected to a common communication line which comprises a calculation unit that calculates as to a message to be transmitted a margin time before a time when a transmission of the message is completed; a transmission unit that transmits the message to which information related to the margin time calculated by the calculation unit is attached; and an arbitration unit that performs arbitration based on the information attached to the message when simultaneous message transmissions to the communication line occur, and as to multiple of messages simultaneously transmitted to the communication line, the arbitration unit performs arbitration in such a manner as to prioritize a message with a shorter margin time.

Abstract: A printed wiring board according to an aspect of the present invention includes a base film having insulation properties and a conductive pattern including multiple wiring portions laminated, the conductive pattern running on at least one surface of the base film, wherein each wiring portion includes a first conductive portion and a second conductive portion coating an outer surface of the first conductive portion, wherein an average width of each wiring portion is 10 ?m or greater to 50 ?m or smaller, and an average thickness of the second conductive portion is 1 ?n or greater to smaller than 8.5 ?m.

Abstract: A method for manufacturing a printed circuit board according to one embodiment of the present invention includes a step of forming a resist pattern, and a step of forming a conductive pattern by using the resist pattern. The resist pattern has an acute angle portion in which an outer edge of a resist is bent to form an acute angle in a plan view. In a corner portion of the acute angle portion, an outer-side outer edge of the resist is rounded, and a radius of curvature of the outer-side outer edge is more than or equal to a distance from the outer-side outer edge to another outer edge adjacent thereto in a direction away from a center of curvature of the outer-side outer edge.

Abstract: In a relay device, a transmitting/receiving unit of an ECU relay receives data. A first counter value is incremented if an amount of data received by the transmitting/receiving unit per unit time exceeds a first threshold. A second counter value is incremented if the amount of data received by the transmitting/receiving unit per unit time exceeds a second threshold. The second threshold is greater than the first threshold. A control unit of a bus relay repeatedly monitors the first counter value. If the first counter value is incremented, the control unit shortens a cycle with which the second counter value is monitored.

Abstract: A substitution apparatus for installation in a vehicle in which a plurality of in-vehicle control apparatuses are implemented, the substitution apparatus including a control unit and a substitute unit. The control unit is configured to control the substitute unit based on transmission data transmitted from the in-vehicle control apparatuses, specify an abnormal in-vehicle control apparatus based on the transmission data, disable the specified abnormal in-vehicle control apparatus, and apply, to the substitute unit, a program for exhibiting functions otherwise normally executed by the specified abnormal in-vehicle control apparatus. The substitute unit is configured to substitute for the disabled in-vehicle control apparatus by executing the applied program.

Abstract: When a predetermined instruction has been made on the basis of an operation input in a case where a positional relationship between a player character and an arrangement object satisfies a predetermined condition, the player character is caused to perform a predetermined action on the arrangement object. Then, on the basis of a virtual camera in a virtual space, a game image in which the player character and the arrangement object are included and in which a predetermined visual effect is added to the arrangement object on which the predetermined action has been performed is generated.

Abstract: A communication device stores a first secret key and a first public key, and the on-vehicle authentication device stores a second secret key, a second public key and a signature verification key. The on-vehicle authentication device acquires the first public key, verifies the authenticity of the electronic signature using a signature verification key, encrypts the second public key using the authentic first public key and transmits the encrypted second public key. The communication device receives the encrypted second public key, decrypts the encrypted second public key using the first secret key, encrypts the first public key using the decrypted second public key. The on-vehicle authentication device receives the encrypted first public key, decrypts the encrypted first public key using the second secret key, and authenticates that the communication device is an authentic device when the decrypted first public key has been determined to be authentic.

Abstract: A first image is generated by imaging a first three-dimensional virtual space including a predetermined object by a first virtual camera. In addition, a map object formed by a three-dimensional model corresponding to the first three-dimensional virtual space is generated, and an indicator object indicating the position of a predetermined object is placed on the map object. Then, a second image is generated by imaging the map object by a second virtual camera. At this time, the second image is generated such that, regarding the indicator object placed on the map object, the display manners of a part hidden by the map object and a part not hidden by the map object as seen from the second virtual camera are different from each other.

Abstract: A high-frequency circuit includes a first electric conductor layer, a first dielectric layer, a circuit layer, a second dielectric layer, a second electric conductor layer arranged in this order, and the circuit layer includes a ground pattern and a transmission line of a high-frequency signal. An electromagnetic wave shield is disposed around the transmission line. The electromagnetic wave shield includes a ground electric conductor on inner surfaces of a plurality of holes extending through the first dielectric layer, the ground pattern, the second dielectric layer, the first electric conductor layer, and the second electric conductor layer. The plurality of holes are a plurality of elongated holes provided at an interval in a direction in which the transmission line is surrounded. In each of the plurality of elongated holes, a longitudinal dimension in the direction in which the transmission line is surrounded is larger than a width dimension.

Abstract: A control unit of a determination device obtains a plurality of pieces of first data and second data, derives determination data based on the first data, specifies, from among a plurality of combinations of identifiers for respectively identifying the pieces of first data and an identifier for identifying the second data, based on the second data and the determination data, a valid combination including the identifiers of valid first data and second data, and an invalid combination including the identifiers of invalid first data or second data, and determines, based on a plurality of identifiers included in the specified invalid combination and a plurality of identifiers included in the valid combination, whether the first data or the second data is invalid.

Abstract: A high-frequency circuit includes a first dielectric layer, a circuit layer, a second dielectric layer arranged in this order, the circuit layer includes a transmission line of a high-frequency signal and a ground pattern disposed around the transmission line. An electromagnetic wave shield is disposed in the first dielectric layer and the second dielectric layer around the transmission line. The electromagnetic wave shield includes a first ground electric conductor formed on an inner surface of at least one first hole formed to extend through the first dielectric layer without extending through the ground pattern, and a second ground electric conductor formed on an inner surface of at least one second hole formed to extend through the second dielectric layer without extending through the ground pattern. The first ground electric conductor and the second ground electric conductor are each electrically connected to the ground pattern.

Abstract: A detection device configured to detect an unauthorized message in an in-vehicle network installed in a vehicle includes: a monitoring unit configured to monitor messages transmitted in the in-vehicle network; a calculation unit configured to, on the basis of a monitoring result by the monitoring unit, calculate a statistic value regarding target messages that have been transmitted in the in-vehicle network in a predetermined period and that are each a message having identification information provided for each kind of target information to be used in the vehicle; and a detection unit configured to perform a detection process of detecting the unauthorized message on the basis of the statistic value calculated by the calculation unit.

Abstract: A detection device includes: an acquisition unit configured to acquire a target distribution that is a distribution of reception intervals of periodic messages transmitted in an in-vehicle network; an extraction unit configured to extract a part of the target distribution acquired by the acquisition unit, in accordance with a predetermined criterion; and a detection unit configured to perform a detection process of detecting an unauthorized message, based on the part, of the target distribution, extracted by the extraction unit.

Abstract: According to an aspect of the present disclosures, a method of making a flexible printed circuit board, which includes a base film having an insulating property, a conductive pattern disposed on either one or both surfaces of the base film, and a cover layer covering a conductive-pattern side of a laminated structure inclusive of the base film and the conductive pattern, includes a superimposing step of superimposing a cover film on the conductive-pattern side of the laminated structure, the cover film having a first resin layer and a second resin layer that is laminated to an inner side of the first resin layer and that softens at a lower temperature than does the first resin layer, and a pressure bonding step of vacuum bagging the laminated structure and the cover film at a temperature higher than a softening temperature of the second resin layer.