Testing device
    1.
    发明授权

    公开(公告)号:US12066409B2

    公开(公告)日:2024-08-20

    申请号:US17280327

    申请日:2019-10-01

    摘要: A cost of a testing device is reduced. A structure of a testing device is simplified. A testing device capable of testing with higher accuracy is provided. A testing device (10) has a structure including a sending unit (13), a receiving unit (14), a control unit (11), and a display (15). The control unit includes a memory portion (21) and an arithmetic portion (22). The sending unit has a function of generating a pulse signal for a probe (40) to generate an ultrasonic wave (51). The receiving unit has a function of generating a first signal including a first analog data (D1) on the basis of the input single input from the probe. The memory portion has a function of storing the first analog data. The arithmetic portion has a function of generating an image signal (S0) output to the display on the basis of the first analog data stored in the memory portion. The display has a function of displaying an image based on the image signal.

    Semiconductor device and operating method of semiconductor device

    公开(公告)号:US12034322B2

    公开(公告)日:2024-07-09

    申请号:US17422314

    申请日:2020-01-14

    IPC分类号: H02J7/00 H01M10/48

    摘要: A battery control circuit having a novel structure, a battery protection circuit having a novel structure, and a power storage device including the battery circuit are provided. A semiconductor device includes n cell balancing circuits that respectively correspond to one secondary battery and each include a transistor, a comparator circuit, and a capacitor. In each of the n cell balancing circuits, an inverting input terminal of the comparator circuit and one electrode of the capacitor are electrically connected to one of a source and a drain of the transistor. The semiconductor device has functions of supplying a ground potential to the other electrode of the capacitor; turning on the transistor; supplying a first potential to the one electrode of the capacitor; turning off the transistor; electrically connecting the other electrode of the capacitor and a negative electrode of the secondary battery corresponding to each cell balancing circuit; supplying a sum of the first potential and a potential of the negative electrode of the secondary battery corresponding to each cell balancing circuit, to the one electrode of the capacitor; and controlling charging of the secondary battery corresponding to each cell balancing circuit.

    Sensor device and semiconductor device

    公开(公告)号:US11997910B2

    公开(公告)日:2024-05-28

    申请号:US17281596

    申请日:2019-10-02

    IPC分类号: H10K65/00 H10K19/20 H10K77/10

    摘要: A flexible semiconductor device including a light-emitting element and a sensor element is provided. The semiconductor device includes a sensor device, a processor, and a communication device. The sensor device includes a first pixel and a second pixel formed over a flexible substrate. The first pixel includes a light-emitting element and a first transistor. The second pixel includes a sensor element having a photoelectric conversion function and a second transistor. Light emitted from the light-emitting element has a peak wavelength. A range of wavelength sensed by the sensor element includes the peak wavelength. A semiconductor layer of the first transistor and a semiconductor layer of the second transistor include the same element. A pixel electrode of the light-emitting element has a function of being electrically connected to the first transistor and a function of blocking diffusion light to the sensor element.

    Driver alert system
    6.
    发明授权

    公开(公告)号:US11814126B2

    公开(公告)日:2023-11-14

    申请号:US17275236

    申请日:2019-10-01

    摘要: To provide a driver alert system capable of improving the safety. A bicycle includes a first transmission circuit transmitting a first ultrasonic wave, a first receiving circuit receiving a second ultrasonic wave, an arithmetic circuit detecting the presence or absence of an object from the second ultrasonic wave, and a second transmission circuit transmitting a third ultrasonic wave. A driver wears a second housing including a second receiving circuit receiving the third ultrasonic wave. The arithmetic circuit includes a first selection circuit selecting a potential based on the second ultrasonic wave at a different timing, a plurality of signal retention circuits retaining a potential based on the second ultrasonic wave, a second selection circuit selecting any one of the plurality of signal retention circuits, and a signal processing circuit to which a signal selected in and output from the second selection circuit is input. The second selection circuit selects the plurality of signal retention circuits at different timings to generate a signal obtained by delaying the second ultrasonic wave. The third ultrasonic wave generated on the basis of the signal is transmitted to the second housing.

    Method for operating display device

    公开(公告)号:US11790817B2

    公开(公告)日:2023-10-17

    申请号:US17633269

    申请日:2020-07-28

    IPC分类号: G09G3/00

    摘要: A display device in which a pixel defect is less likely to be perceived is provided. The display device includes a display portion where pixels are arranged in a matrix, and a sensor portion including a photoelectric conversion element. First, the display portion is divided into a first region and a second region. Next, first light is emitted from the pixel included in the first region, and the luminance of the first light is detected by the photoelectric conversion element. Moreover, second light is emitted from the pixel included in the second region, and the luminance of the second light is detected by the photoelectric conversion element. Then, the luminance of the first light is compared to the luminance of the second light, and on the basis of the comparison result, one of the first region and the second region is divided into a third region and a fourth region. By repeating these operations, a defective pixel is detected. Luminance represented by image data can be corrected on the basis of the detection result of the defective pixel.