Abstract: Disclosed is a pixel circuit arranged in a display substrate, which comprises a first driving mode and a second driving mode. Content displayed in the display substrate comprises multiple display frames. In the first driving mode and the second driving mode, the display frames comprise refresh frames. A signal of a second scanning line is the same as that of a third scanning line. The time of which the signal of the second scanning line is an active level signal comprises a first refresh time period, a second refresh time period and a third refresh time period, which sequentially occur at intervals. During the second refresh time period, a signal of a first scanning line is an inactive level signal. The voltage of a signal at a reset voltage end is a positive voltage, and the voltage of a signal at a first initial voltage end is a negative voltage.

Abstract: Provided in the present disclosure are a radar sensor system, and a modulation device and method thereof. The radar sensor system includes a plurality of groups of radar sensors, and each radar sensor has a serial number corresponding to an order thereof in the group. The modulation device is configured to perform modulation control on the plurality of groups of radar sensors, such that the radar sensors in the same group transmit radar signals by different time modulation and the radar sensors with the corresponding serial numbers in different groups transmit radar signals by the same time modulation.

Abstract: A control apparatus includes a processor and a memory storing a program that, when executed by the processor, causes the processor to acquire at least one of movement information related to a movement status of a device having a step motor or environment information related to an environment where the device is located, and select one of a plurality of control modes to control the step motor according to the at least one of the movement information or the environment information. The plurality of control modes includes a first control mode and a second control mode. In the second control mode, a number of steps is less than that in the first control mode, and a force to keep a rotor of the step motor at a position is smaller than that in the first control mode or a power consumption is less than that in the first control mode.

Abstract: Each of a plurality of analog-to-digital (AD) converters configuring a column AD converter used in an image sensor comprises: an oversampling AD converter that receives an output voltage of a pixel unit; a recursive AD converter that receives an analog residual signal of the oversampling AD converter; and a counter that adds a digital signal output from the oversampling AD converter and a digital signal output from the recursive AD converter. The controller dynamically allocates the number of bits of the oversampling AD converter and the number of bits of the recursive AD converter, while maintaining the total number of bits of the oversampling AD converter and the recursive AD converter.

Abstract: Each of a plurality of analog-to-digital (AD) converters configuring a column AD converter used in an image sensor comprises: an oversampling AD converter that receives an output voltage of a pixel unit; a recursive AD converter that receives an analog residual signal of the oversampling AD converter; and a counter that adds a digital signal output from the oversampling AD converter and a digital signal output from the recursive AD converter. The controller dynamically allocates the number of bits of the oversampling AD converter and the number of bits of the recursive AD converter, while maintaining the total number of bits of the oversampling AD converter and the recursive AD converter.

Abstract: An imaging apparatus includes a pixel unit and an analog-to-digital (AD) converter unit which are divided into a first cluster and a second cluster. The first cluster includes a plurality of pixel columns including a first pixel column, and a plurality of AD converters corresponding to the respective pixel columns. The second cluster includes a plurality of pixel columns, a plurality of AD converters corresponding to the respective pixel columns, and an additional AD converter. The pixels of the first pixel column are coupled with both the AD converter and the additional AD converter.