Panasonic Intellectual Property Management Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Automotive Systems Co., Ltd.

Nuvoton Technology Corporation Japan

Fumihito Inukai

Toshiya Mori

Hitoshi Kobayashi

Masanaga Tsuji

Yukihiro Chokyu

Gorou Mori

Yoichi Kaino

Akira Tanaka

Kosuke Kubota

Tadashi Shibata

Akio Yokoyama

Ken′ichi Kasazumi

Seiichi Muroya

Ken'ichi Kasazumi

Naohisa Hatani

Toshinobu Nagasawa

Yosuke Goto

Masato Nakakita

A display system includes: a road surface undulation estimator that estimates undulation of a road surface; a superimposing position determiner that determines, based on the estimated undulation, a superimposing position at which content is to be displayed by being superimposed on a foreground; and a display that displays the content with the content superimposed on the foreground at the determined superimposing position. The road surface undulation estimator includes: a road surface undulation information obtainer that obtains road surface undulation information items indicating the undulation at points and being calculated based on images generated when an imager provided to a mobile body performs image capturing a plurality of times; a determiner that determines whether or not the obtained road surface undulation information items each satisfy a predetermined condition; and an estimator that estimates the undulation based on road surface undulation information items which have been determined to satisfy the predetermined condition.

Display system, road surface undulation estimation device, and display method

A display device includes a controller that determines the mode of inclination of a display object that is an image shaped to point to one direction, and a drawing unit that projects light representing the display object in the mode of inclination determined by the controller onto a windshield to cause the light to be reflected off the windshield toward a user in the vehicle to enable the user to visually recognize the display object in the mode of inclination as a virtual image through the windshield. The controller determines the mode of inclination of the display object that points to the one direction as a navigation direction, by controlling yaw and roll angles of the display object depending on the attribute of a path point that is set on the path to navigate the vehicle to a destination.

Display device for enabling a user to visually recognize an image as a virtual image

A video control device includes a processor and a memory including a program that, when executed, causes the processor to perform operations including: obtaining a position of a vehicle determined by a satellite positioning system; obtaining an estimated position of the vehicle estimated based on dead reckoning; estimating a deviation in an orientation of the vehicle, based on the position of the vehicle determined by the satellite positioning system and the estimated position of the vehicle estimated based on the dead reckoning; calculating an estimated orientation of the vehicle, based on the deviation in the orientation of the vehicle estimated; and outputting the estimated orientation of the vehicle to a video display device that displays information which is based on the orientation of the vehicle.

Video control device, video control method, and recording medium

A rendering system includes a first obtainer, a second obtainer, a renderer, an estimator, and a corrector. The first obtainer obtains position information indicating a position of an object from a detector. The second obtainer obtains movement information indicating a movement state of the moving body. The renderer renders a display image including a content related to the object. The estimator estimates a delay period by comparing the position information to estimated-position information indicating an estimated position of the object estimated based on the movement information of the object. The corrector corrects displacement of a display position of the content on the display image which is caused by movement of the moving body over the delay period.

Rendering system, display system, display control system, and rendering method

A display control device is configured to control a display position of an image in an image projector configured to project the image onto a display object of a mobile body. The display control device includes a processor; and a memory storing instructions that, when executed by the processor, cause the display control device to perform operations including: acquiring a detection value of an acceleration acting on the mobile body; calculating an attitude angle of the mobile body based on the detection value of the acceleration; and setting a correction amount of the display position for controlling the display position of the image to be projected onto the display object by adjusting a correction amount per predetermined unit time in accordance with a change amount of the attitude angle in a predetermined period.

Display control device, image display system, mobile body, display control method, and non-transitory computer-readable medium

A display correction system includes a first obtainer, a second obtainer, a third obtainer, a predictor, and a corrector. The first obtainer obtains travel route information on a travel route ahead of a moving body. The second obtainer obtains speed information on a speed of the moving body. The third obtainer obtains orientation information on an orientation of the moving body. The predictor predicts, based on the travel route information and the speed information, a time period during which the moving body travels through a specific section in the travel route. The corrector performs correction of a displacement of a display position of a content on a display image based on the orientation information. Based on prediction result of the predictor, the corrector executes first control when the moving body is traveling in a normal section, and executes second control when the moving body is traveling in the specific section.

Display correction system, display system, and display correction method

An image display system includes: an image projection unit that projects and displays an image on a display target for a moving body; a posture angle calculation unit that calculates a posture angle for the moving body on the basis of chronological data for acceleration detection values for the acceleration of the moving body in a prescribed time period; and a display control unit that controls the display position at which the image is projected and displayed on the display target, in accordance with the posture angle calculated by the posture angle calculation unit. The acceleration detection values include bi-directional components. The posture angle calculation unit excludes acceleration detection values from the chronological data used when calculating the posture angle, said acceleration detection values being included in an exclusion time period which has a ratio for the bidirectional components, in the prescribed time period, that is outside a prescribed range.

Image display system, moving body, image display method, and program

A voltage detection circuit includes a first terminal for connecting to one end of a first voltage detection line through a first resistor, the first voltage detection line having another end connected to a cathode or an anode of a first individual battery; a second terminal for connecting to the one end of the first voltage detection line without the first resistor; a first current generating circuit connected to the first terminal; and a voltage detector which detects a voltage of the first terminal and a voltage of the second terminal. The voltage detector includes at least one first AD converter connected to the first terminal, and at least one second AD converter connected to the second terminal.

Voltage detecting circuit, abnormality detector, and battery system

A voltage detection circuit measures a plurality of cell voltages of an assembled battery configured by connecting a plurality of cells in series. The voltage detection circuit includes a plurality of input terminals connected to respective electrodes of the plurality of cells through a plurality of voltage detection lines; a multiplexer that periodically selects and outputs voltages of a plurality of cells in a group, a plurality of series cells configured as the group; an analog-to-digital (AD) converter that AD-converts an output voltage from the multiplexer and outputs digital data of the output voltage; and a control circuit that controls a timing for the selection by the multiplexer and a timing for the AD conversion. The control circuit switches over a time interval for which the multiplexer selects each of the cells to change a period of the AD conversion.

Voltage detection circuit measurement apparatus for use in assembled battery system

An image display system includes: a light source driver configured to supply, to a light source, a drive current including a first current and a second current; a processor configured to output the set value of the first current to the light source driver; and a corrector configured to perform a correction process on the first current. The processor is configured to set, based on a correspondence relationship between the gradation value and the current value of the first current, the set value of the first current to a current value determined with reference to the correspondence relationship when the gradation value is in a second gradation range in which numerical values are smaller than numerical values in the first gradation range, the correction process correcting the correspondence relationship such that a difference between a measured intensity and a target intensity of the light source falls within a prescribed range.

Image display system, movable object, image display method, and non-transitory computer-readable medium

The image display system forms an image by scanning with light from a light source of a luminaire. The image display system includes: an input unit configured to receive an image signal indicative of an instruction value of luminance of the light source; and a control unit configured to determine a target value of luminance of the light source based on the instruction value indicated by the image signal received by the input unit. The control unit is configured to perform an adjusting process of setting the target value to an adjusted value different from the instruction value when allowing the light source to emit light based on the image signal.

Image display system, image display method, and movable object

The image display system includes a processing unit and a driving unit. The processing unit is configured to receive an image signal indicative of an instruction value of luminance of a light source. The driving unit is configured to supply a drive current to the light source in accordance with the instruction value indicated by the image signal received by the processing unit. The driving unit includes a shaping circuit and an adjusting unit. The shaping circuit includes a plurality of D/A converters and an arithmetic unit. The arithmetic unit is configured to output the drive current to the light source based on a computation result of analog signals outputted from the plurality of D/A converters. The adjusting unit is configured to determine values of digital signals inputted into the plurality of D/A converters of the shaping circuit in accordance with the instruction value.

Image display system, movable object, and image display method

An analogue measurement data detection system according to the present invention includes: a reference voltage generation circuit configured to generate and output a reference voltage; an analogue/digital converter configured to compare an analogue signal with the reference voltage outputted from the reference voltage generation circuit, and based on a differential voltage between the analogue signal and the reference voltage, generate and output a digital signal corresponding to the analogue signal. The reference voltage generation circuit is configured to cause the reference voltage to have such a temperature characteristic as to compensate for temperature characteristics of at least the analogue/digital converter and the reference voltage generation circuit.

Analogue measurement data detection system and battery voltage detection system

A battery device includes: a secondary battery; a charger; a first transistor configured to control conduction between the secondary battery and a load; a second transistor configured to control conduction between the charger and the secondary battery; diodes of which cathodes are connected to each other and that are connected between the secondary battery and the charger; a capacitor configured to accumulate charge to be transferred to the gate of the first transistor; a capacitor configured to accumulate charge to be transferred to the gate of the second transistor; and a battery control device configured to control charging/discharging of the secondary battery.

Battery device and battery control device

An analog measurement data detection system according to the present invention includes: a reference voltage generation circuit configured to generate and output a reference voltage; an analog/digital converter configured to compare an analog signal with the reference voltage outputted from the reference voltage generation circuit, and based on a differential voltage between the analog signal and the reference voltage, generate and output a digital signal corresponding to the analog signal. The reference voltage generation circuit is configured to cause the reference voltage to have such a temperature characteristic as to compensate for temperature characteristics of at least the analog/digital converter and the reference voltage generation circuit.

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Kyoto, Japan

Fumihito Inukai