Abstract: A display system includes a data control chip, N cascaded modules, and N pull-up resistors. Each cascaded module includes M driver units connected in series and correspondingly controlled LED units. An input terminal of the first driver unit is coupled to an output terminal of the data control chip, an output terminal of an Mth driver unit is coupled to an input terminal of the data control chip, each driver unit is coupled to a first power supply voltage. Each driver unit is integrated with a CMOS output structure and an open-drain output structure. The data control chip is configured to control each driver unit in a corresponding cascaded module to be switched between the CMOS output structure and the open-drain output structure. Each pull-up resistor is corresponding to one cascaded module, and is coupled between an output terminal of the corresponding cascaded module and a second power supply voltage.

Abstract: The present disclosure provides systems and methods for medical imaging. The method may include obtaining a plurality of channels of electrocardiogram (ECG) signals of a heart of a subject; identifying, from the plurality of channels of ECG signals, a target channel of ECG signal, wherein an amplitude of a characteristic wave of the target channel of ECG signal is the maximum amplitude among amplitudes of corresponding characteristic waves of the plurality of channels of ECG signals; and causing, based on the target channel of ECG signal, an imaging device to perform a scan operation on the heart of the subject.

Abstract: The present disclosure provides systems and methods for medical imaging. The method may include obtaining a plurality of channels of electrocardiogram (ECG) signals of a heart of a subject; identifying, from the plurality of channels of ECG signals, a target channel of ECG signal, wherein an amplitude of a characteristic wave of the target channel of ECG signal is the maximum amplitude among amplitudes of corresponding characteristic waves of the plurality of channels of ECG signals; and causing, based on the target channel of ECG signal, an imaging device to perform a scan operation on the heart of the subject.

Abstract: The present disclosure provides systems and methods for medical imaging. The method may include obtaining a plurality of channels of electrocardiogram (ECG) signals of a heart of a subject; identifying, from the plurality of channels of ECG signals, a target channel of ECG signal, wherein an amplitude of a characteristic wave of the target channel of ECG signal is the maximum amplitude among amplitudes of corresponding characteristic waves of the plurality of channels of ECG signals; and causing, based on the target channel of ECG signal, an imaging device to perform a scan operation on the heart of the subject.

Abstract: The invention discloses an electrical connection structure between spectacles legs and lenses of electronic glasses, comprising spectacles legs, connecting components arranged on the lenses for connecting the spectacles legs, and electrical connecting components for realizing electrical connection between the spectacles legs and the connecting components, wherein said lenses are connected to said connecting components, and a groove for the electrical connecting component to pass through is arranged on a contact portion where the spectacles leg connects to the connecting component.