H04N1/2137

Electronic device and fingerprint sensing method

An electronic device and a fingerprint sensing method are provided. The electronic device includes a display panel, a fingerprint sensor, and an integrated driver chip. The display panel includes a plurality of pixel units arranged in an array. The integrated driver chip integrates a display driver circuit and a fingerprint sensing circuit. When the pixel units of the display panel are in an undriven state and a finger object is in contact with a sensing area of the display panel to perform a fingerprint unlock operation, the display driver circuit drives at least a portion of the pixel units corresponding to the sensing area, so that at least a portion of the pixel units provide illumination light to the sensing area. The fingerprint sensing circuit drives the fingerprint sensor to capture a fingerprint feature image of the finger object.

IMAGE FORMING APPARATUS, METHOD OF STORING IMAGE FORMING DATA, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM THEREFOR
20200382678 · 2020-12-03 · ·

An image forming apparatus is provided with a storage, a controller, an image forming part, a first interface configured to receive an image forming job, and a second interface to which a portable storage device is connectable. When the particular storing function is enabled, image data is stored in the portable storage in response to receipt of the print job, and an image is formed in accordance with the image data stored in the portable storage. When the particular storing function is disabled, the image data related to the print job is stored in the storage of the image forming apparatus in response to receipt of the print job, and an image is formed in accordance with the image data stored in the storage of the image forming apparatus.

On-Chip Image Sensor Data Compression

Systems and methods are disclosed that capture and compress frames of pixel data. In an implementation, an image sensor chip is configured to convert light into pixel data and generate compressed pixel data at a variable compression rate including applying a transform to pixel data associated with a pixel category from a plurality of pixel categories. The variable compression rate is within an available bandwidth of an output bus configured to output the compressed pixel data.

System and Method For Frame Capturing and Processing

Systems and methods are provided that capture and process frames of frame data. An image sensor captures frames of frame data representative of light incident upon the image sensor using a rolling shutter and outputs the frames of frame data. The image sensor captures at least one of the frames over a frame capture interval and then waits over a blanking interval before capturing another frame. A buffer receives and stores the frames output by the image sensor. An image signal processor retrieves the frames from the buffer and processes the frames over successive frame processing intervals to generate a video having a time interval per frame greater than the frame capture interval. At least one of the successive frame processing intervals is greater than the frame capture interval and is less than or equal to a sum of the frame capture interval and the blanking interval.

IMAGING APPARATUS AND DISPLAY CONTROL METHOD
20200342913 · 2020-10-29 ·

An imaging apparatus includes a storing unit configured to, when recording pieces of image data obtained by an imaging unit on a plurality of recording media, respectively temporarily store the pieces of image data obtained by the imaging unit in a plurality of storage regions corresponding to the plurality of recording media, a recording control unit configured to perform control to respectively record the pieces of image data temporarily stored in the plurality of storage regions on the plurality of recording media corresponding to the plurality of storage regions, and a display control unit configured to perform control to display information indicating a use status of a storage region on a display unit, wherein the display control unit performs control to display information indicating the use status only with respect to one storage region out of the plurality of storage regions.

Electronic device and image capture method

An electronic device and an image capture method are provided. The electronic device includes an image sensor, a ramp analog to digital converter, and a memory. The image sensor includes a plurality of pixel units arranged in an array, and the pixel units output a plurality of first image capturing signals and a plurality of second image capturing signals in an image capturing operation. The ramp analog to digital converter generates a plurality of most significant bit data corresponding to a plurality of pixels according to a first nonlinear ramp signal and the first image capturing signals, and generates a plurality of least significant bit data corresponding to the plurality of pixels according to a second nonlinear ramp signal and the second image capturing signals. The memory stores the most significant bit data of these pixels and the least significant bit data of these pixels together to generate frame data.

On-chip image sensor data compression

Systems and methods are disclosed that capture and compress frames of pixel data. In an implementation, an image sensor chip is configured to convert light into pixel data and generate compressed pixel data at a variable compression rate including applying a transform to pixel data associated with a pixel category from a plurality of pixel categories. The variable compression rate is within an available bandwidth of an output bus configured to output the compressed pixel data.

System and method for frame capturing and processing

Systems and methods are provided that capture and process frames of frame data. An image sensor captures frames of frame data representative of light incident upon the image sensor using a rolling shutter and outputs the frames of frame data. The image sensor captures at least one of the frames over a frame capture interval and then waits over a blanking interval before capturing another frame. A buffer receives and stores the frames output by the image sensor. An image signal processor retrieves the frames from the buffer and processes the frames over successive frame processing intervals to generate a video having a time interval per frame greater than the frame capture interval. At least one of the successive frame processing intervals is greater than the frame capture interval and is less than or equal to a sum of the frame capture interval and the blanking interval.

ELECTRONIC DEVICE AND IMAGE CAPTURE METHOD

An electronic device and an image capture method are provided. The electronic device includes an image sensor, a ramp analog to digital converter, and a memory. The image sensor includes a plurality of pixel units arranged in an array, and the pixel units output a plurality of first image capturing signals and a plurality of second image capturing signals in an image capturing operation. The ramp analog to digital converter generates a plurality of most significant bit data corresponding to a plurality of pixels according to a first nonlinear ramp signal and the first image capturing signals, and generates a plurality of least significant bit data corresponding to the plurality of pixels according to a second nonlinear ramp signal and the second image capturing signals. The memory stores the most significant bit data of these pixels and the least significant bit data of these pixels together to generate frame data.

ELECTRONIC DEVICE AND AUTOMATIC EXPOSURE CONVERGENCE METHOD

An electronic device and an automatic exposure convergence method are provided. The electronic device includes an image sensor and a processor. The image sensor is configured to obtain a first frame. The first frame includes a plurality of sub-frame regions, and each of the sub-frame regions includes a plurality of pixel data. The plurality of pixel data are obtained based on different exposure times. The processor is coupled to the image sensor. The processor is configured to analyze the first frame to combine the pixel data having the same exposure times in the sub-frame regions into a plurality of second frames. The processor analyzes the plurality of second frame to obtain a plurality of exposure values. The processor performs an exposure convergence operation based on the plurality of exposure values.