5 results about "Vertical blanking interval" patented technology

The invention discloses a display device and a display driving method. A time sequence control module judges that a display picture of a current frame of a display panel is one of a light-load display picture and a heavy-load display picture, and when a display picture of a to-be-displayed frame is the other one of the light-load display picture and the heavy-load display picture, the time sequence control module controls the display panel to display the light-load display picture and the heavy-load display picture; and controlling the generated enable signal to have an effective level at a vertical blanking interval between the current frame and the frame to be displayed, so that the power management module adjusts a compensation value applied to the analog power supply voltage according to the effective level of the enable signal at the vertical blanking interval, the voltage offset of the generated analog power supply voltage relative to the reference voltage in at least one of the starting time period and the ending time period of the vertical blanking interval is reduced, so that the stability of the analog power supply voltage in the time period where ripples are easy to generate is improved, and the ripples of the analog power supply voltage are reduced. And the problem of water ripples or crosstalk occurring during display of the display panel is solved.

The invention relates to the technical field of image processing and data acquisition, and discloses a financial bill intelligent identification and archiving method of an embedded hardware terminal, and the method comprises the steps: firstly obtaining a global low-resolution image, and generating an acquisition instruction queue containing heterogeneous ISP parameters; then controlling the image sensor to execute hardware-level asynchronous serialization acquisition by utilizing vertical blanking interval configuration to obtain heterogeneous local image slices; and eliminating view field displacement between the slice and the global image by using gradient domain registration, and executing logic consistency verification on the identified and extracted service data. And if the verification is passed, generating a layered archived file, otherwise, based on the image histogram, generating a correction parameter and triggering hardware feedback recollection. According to the invention, through a heterogeneous acquisition strategy and a business logic closed loop, the problems of high delay of high-resolution acquisition of a mobile terminal and difficult alignment of handheld shooting are effectively solved, and the bill identification accuracy and filing efficiency are significantly improved.

The present application relates to the technical field of display, and discloses a screen scanning method and apparatus, a storage medium, and an electronic device. The method comprises: intermittently performing display scanning during a display interval; performing touch sensing scanning during a vertical blanking interval; and performing electromagnetic touch scanning during the display interval. Therefore, mutual interference among the display scanning, touch sensing scanning, and electromagnetic touch scanning can be avoided.

Disclosed are systems and techniques for image processing. For example, a computing device can obtain, from an image sensor, a primary image frame of a scene. The computing device can obtain, from the image sensor during an idle time (e.g., a vertical blanking interval (VBI)) of the image sensor, auxiliary image frames of the scene. Each of the auxiliary image frames corresponds to a region of interest in the scene and includes a lower resolution than the primary image frame. The computing device can process the primary image frame and the auxiliary image frames to focus the image sensor based on the region of interest.

The invention relates to a method for operating an environmental sensor (1), wherein exposures of a number h_a of physical lines from pixels of a pixel matrix are started sequentially (S1), and wherein physical exposure results of the h_a physical lines are read out (S2) and taken into account in data processing together with virtual exposure results of a number h-h_a of virtual lines forming a vertical blanking interval, wherein of a total number h processing lines exactly a number N processing lines are exposed simultaneously, of which a number N_a of physical lines are exposed simultaneously, wherein such processing lines that are exposed simultaneously at one time are separated by a number d-1 of unexposed processing lines.where for a minimum number N_a_min of simultaneously exposed physical lines N_a_min = floor(h_a / d) and where for a maximum number N_a_max of simultaneously exposed physical lines N_a_max = ceil(h_a / d), with N_a_min ≤ N_a ≤ N_a_max.,