公开(公告)号：US20190052829A1

公开(公告)日：2019-02-14

申请号：US15675803

申请日：2017-08-14

Applicant: Himax Imaging Limited

Inventor： Yuan-Chih Peng ,  Ching-Fong Chen

IPC: H04N5/376 ,  G06T3/40 ,  H04N5/262

CPC classification number: H04N5/3765 ,  G06T3/4053 ,  H04N5/23296 ,  H04N5/2628 ,  H04N5/3454 ,  H04N5/361 ,  H04N5/374 ,  H04N5/376

Abstract: An image pickup apparatus includes an image sensor array, a scaling circuit, an output circuit and a timing control circuit. The image sensor array reads N pixel lines according to a read timing control signal to capture N lines of pixel data of a source image. The scaling circuit receives the N lines of pixel data according to a scaling timing control signal, and refers to a scaling factor to scale up the source image to generate an upscaled image having M lines of pixel data. M is a positive integer greater than N. The output circuit outputs the M lines of pixel data according to an output timing. The timing control circuit determines a receiving timing according to the output timing and the scaling factor to generate the scaling timing control signal, and determines a read timing according to the receiving timing to generate the read timing control signal.

公开(公告)号：US10389962B2

公开(公告)日：2019-08-20

申请号：US15675803

申请日：2017-08-14

Applicant: Himax Imaging Limited

Inventor： Yuan-Chih Peng ,  Ching-Fong Chen

IPC: H04N5/376 ,  G06T3/40 ,  H04N5/262 ,  H04N5/232 ,  H04N5/345 ,  H04N5/374 ,  H04N5/361

Abstract: An image pickup apparatus includes an image sensor array, a scaling circuit, an output circuit and a timing control circuit. The image sensor array reads N pixel lines according to a read timing control signal to capture N lines of pixel data of a source image. The scaling circuit receives the N lines of pixel data according to a scaling timing control signal, and refers to a scaling factor to scale up the source image to generate an upscaled image having M lines of pixel data. M is a positive integer greater than N. The output circuit outputs the M lines of pixel data according to an output timing. The timing control circuit determines a receiving timing according to the output timing and the scaling factor to generate the scaling timing control signal, and determines a read timing according to the receiving timing to generate the read timing control signal.

公开(公告)号：US20170026604A1

公开(公告)日：2017-01-26

申请号：US14805138

申请日：2015-07-21

Applicant: Himax Imaging Limited

Inventor： Jia-Shyang Wang ,  Ching-Fong Chen

IPC: H04N5/374 ,  H04N5/357 ,  H04N5/378

CPC classification number: H04N5/3745 ,  H04N5/37457 ,  H04N5/378

Abstract: An image sensor includes pixels arranged in 1×2 sharing manner by which two neighboring pixels of a same column form a pixel group. Two neighboring bit lines are connected to a multiplexer, and the output of the multiplexer is connected to a readout circuit. Neighboring transfer transistors of a same row are controlled by different transfer signals.

Abstract translation: 图像传感器包括以1×2共享方式布置的像素，通过该像素，同一列的两个相邻像素形成像素组。 两个相邻位线连接到多路复用器，并且多路复用器的输出连接到读出电路。 相同行的相邻传输晶体管由不同的传输信号控制。

公开(公告)号：US08749670B1

公开(公告)日：2014-06-10

申请号：US13778899

申请日：2013-02-27

Applicant: Himax Imaging Limited

Inventor： Chin-Min Liu ,  Ching-Fong Chen

IPC: H04N9/64

CPC classification number: H04N5/361

Abstract: A digital camera and an image sensor readout method with black level calibration are disclosed. In a readout circuit of the digital camera, a black reference for black level calibration and an analog-to-digital conversion reference voltage for analog-to-digital conversion are generated from reference voltages provided by one voltage ladder. Device-to-device variations of sensor characteristics are considered when selecting the reference voltage for generating the black reference, and, a gain between the selected reference voltage and the black reference varies with a gain of a programmable gain amplifier coupled after a compensator. The compensator subtracts the black reference from a sensed signal that the readout circuit receives from an image sensor of the digital camera.

Abstract translation: 公开了一种具有黑色电平校准的数字照相机和图像传感器读出方法。 在数字照相机的读出电路中，由一个电压梯提供的参考电压产生用于黑电平校准的黑参考和用于模数转换的模数转换参考电压。 在选择用于产生黑色参考的参考电压时考虑传感器特性的器件到器件的变化，并且所选择的参考电压和黑色参考之间的增益随补偿器之后耦合的可编程增益放大器的增益而变化。 补偿器从读出电路从数码相机的图像传感器接收到的感测信号中减去黑色参考。