公开(公告)号：US11800040B2

公开(公告)日：2023-10-24

申请号：US17326332

申请日：2021-05-21

Applicant: Axis AB

Inventor： Johan Jeppsson Karlin ,  Jimmie Jönsson

IPC: H04N5/16 ,  H04N5/57 ,  H04N25/63 ,  H04N9/64

CPC classification number: H04N5/165 ,  H04N5/57 ,  H04N25/63 ,  H04N9/64

Abstract: The present disclosure relates to a method performed by a deviation analyzing system (1) for black level drift assessment of a digital camera image sensor (21). The deviation analyzing system measures (1001) for pixels of an image captured by the image sensor, a respective luminance value and corresponding chromaticity value of each pixel. The deviation analyzing system further determines (1002) a respective average chromaticity value for differing luminance levels of the measured luminance values, based on for each luminance level averaging the corresponding measured chromaticity values. Moreover, the deviation analyzing system determines (1003), when the respective average chromaticity values of a range (4) of luminance levels indicate—to a predeterminable extent—chromaticity deviations (5) from the respective average chromaticity values (6) of other luminance levels (7), that a black level setting of the image sensor is drifted from a true black level.
The disclosure also relates to a deviation analyzing system in accordance with the foregoing, a digital camera comprising such a deviation analyzing system, and a respective corresponding computer program product and non-volatile computer readable storage medium.

公开(公告)号：US09392209B1

公开(公告)日：2016-07-12

申请号：US13083415

申请日：2011-04-08

Applicant: Dominic M. Kotab

Inventor： Dominic M. Kotab

IPC: H04N5/76 ,  H04N5/445 ,  H04N7/18 ,  H04N7/173 ,  H04N21/231 ,  G06F13/00 ,  G06F15/16 ,  H04N5/781 ,  H04N5/16 ,  H04N5/44 ,  H04N7/10 ,  H04L29/06 ,  G06F12/02 ,  G06F3/06

CPC classification number: H04N5/76 ,  G06F3/0601 ,  G06F3/067 ,  G06F12/0246 ,  H04L29/06 ,  H04L67/1097 ,  H04N5/165 ,  H04N5/4401 ,  H04N5/765 ,  H04N5/781 ,  H04N7/106 ,  H04N7/17318 ,  H04N21/231 ,  H04N21/2393 ,  H04N21/4334 ,  H04N21/4335 ,  H04N21/4435 ,  H04N21/47214

Abstract: In one general embodiment, a method includes, or a system has logic for, receiving a request to record a television program on a first output device; determining that recording the television program conflicts with a scheduled recording; and downloading the television program from a server in response to determining that the recording thereof conflicts with another scheduled recording. Additional systems and methods are also presented.

Abstract translation: 在一个一般实施例中，一种方法包括或者系统具有用于在第一输出设备上接收记录电视节目的请求的逻辑; 确定记录电视节目与预定的录制相冲突; 以及响应于确定其记录与另一预定记录相冲突，从服务器下载电视节目。 还介绍了其他系统和方法。

公开(公告)号：US20150009411A1

公开(公告)日：2015-01-08

申请号：US14375048

申请日：2012-07-10

Applicant: Toshiyuki Fujine ,  Yoji Shiraya

Inventor： Toshiyuki Fujine ,  Yoji Shiraya

IPC: H04N5/57 ,  H04N9/12

CPC classification number: H04N5/57 ,  G09G3/3426 ,  G09G2320/0646 ,  G09G2360/16 ,  H04N5/165 ,  H04N5/66 ,  H04N9/12 ,  H04N9/73

Abstract: A light emission portion of a video signal is detected, and the display intensity of the light emission portion is enhanced for emphasis display. At this moment, the intensity stretch amount is controlled in accordance with a status of video black display, thereby increasing the feeling of brightness and hence improving the video quality. A light emission detecting portion (12) generates a histogram obtained by integrating numbers of pixels for a predetermined feature value of an input video signal and detects, as a light emission part, a high-level area of a predetermined range of the histogram. An area-active-control/luminance-stretching portion (14) stretches and increases the intensity of a backlight portion (16) on the basis of an index related to a brightness calculated, on the basis of a predetermined condition, from the input video signal, and lowers the video signal intensity of the non-light emission part excluding the light emission part. At this moment, the area-active-control/luminance-stretching portion (14) changes, in accordance with a black display amount detected by a black detection portion (19), a control curve that defines the relationship between the index related to the brightness and the stretch amount.

Abstract translation: 检测视频信号的发光部分，增强发光部分的显示强度以进行强调显示。 此时，根据视频黑色显示的状态来控制强度拉伸量，从而增加亮度感，从而提高视频质量。 光发射检测部分（12）产生通过对输入视频信号的预定特征值的像素数进行积分而获得的直方图，并且检测直方图的预定范围的高电平区域作为发光部分。 区域主动控制/亮度延伸部分（14）基于与根据预定条件计算的亮度相关的指标，从输入视频（14）延伸并增加背光部分（16）的强度 信号，并且降低除了发光部分之外的非发光部分的视频信号强度。 此时，区域主动控制/亮度伸展部（14）根据由黑色检测部（19）检测出的黑色显示量而变化控制曲线，该控制曲线定义与 亮度和拉伸量。

公开(公告)号：US20130335639A1

公开(公告)日：2013-12-19

申请号：US13526060

申请日：2012-06-18

Applicant: András Vince Horvath ,  Abdulkerim L. Coban ,  Pio Balmelli ,  Ramin Khoini-Poorfard ,  Alessandro Piovaccari

Inventor： András Vince Horvath ,  Abdulkerim L. Coban ,  Pio Balmelli ,  Ramin Khoini-Poorfard ,  Alessandro Piovaccari

IPC: H03L5/00 ,  H04N5/50

CPC classification number: H04N5/50 ,  H03J5/24 ,  H04L25/0292 ,  H04N5/165 ,  H04N5/455 ,  H04N21/42607

Abstract: In one embodiment, an internal buffer may be provided within an integrated circuit (IC) to convert a signal to an output current to be output via a pin of the IC, under control of a switch which can be controlled based on a configuration setting of the IC, and may selectively directly couple the signal to the pin when the IC is coupled to an external driver circuit.

Abstract translation: 在一个实施例中，内部缓冲器可以设置在集成电路（IC）内，以在开关的控制下将信号转换成经由IC的引脚输出的输出电流，该开关可以基于配置设置 IC，并且当IC耦合到外部驱动器电路时，可以选择性地将信号耦合到引脚。

公开(公告)号：US20100315397A1

公开(公告)日：2010-12-16

申请号：US12648875

申请日：2009-12-29

Applicant: Jea-hee Han

Inventor： Jea-hee Han

IPC: G09G5/00

CPC classification number: H04N17/02 ,  H04N5/165 ,  H04N5/185 ,  H04N5/57 ,  H04N21/4318

Abstract: A display apparatus includes: a video processor which performs calibration; a signal generator which generates a signal; and a controller which controls the signal generator to generate an analog signal corresponding to a predetermined direct current voltage when performing the calibration, and controls the video processor to convert the analog signal into the digital signal and to adjust the digital signal to have a same value as a reference value. The signal input for calibration is achieved in a board controllable by a microcomputer, so that the board itself can automatically perform the calibration with regard to various kinds of signals without connection of an external device.

Abstract translation: 一种显示装置，包括：执行校准的视频处理器; 产生信号的信号发生器; 以及控制器，其在执行校准时控制信号发生器产生对应于预定直流电压的模拟信号，并且控制视频处理器将模拟信号转换为数字信号并且将数字信号调整为具有相同的值 作为参考值。 用于校准的信号输入在由微型计算机控制的电路板中实现，使得电路板本身可以在不连接外部设备的情况下自动执行关于各种信号的校准。

公开(公告)号：US20090268089A1

公开(公告)日：2009-10-29

申请号：US12441491

申请日：2007-04-06

Applicant: Takeshi Mori ,  Seiji Kohashikawa ,  Hiroyuki Furukawa ,  Masafumi Ueno ,  Kenichiroh Yamamoto ,  Takashi Yoshii

Inventor： Takeshi Mori ,  Seiji Kohashikawa ,  Hiroyuki Furukawa ,  Masafumi Ueno ,  Kenichiroh Yamamoto ,  Takashi Yoshii

IPC: H04N7/01

CPC classification number: H04N5/145 ,  G09G3/20 ,  G09G3/3611 ,  G09G2320/0261 ,  G09G2320/106 ,  G09G2340/0435 ,  H04N5/142 ,  H04N5/165 ,  H04N5/57 ,  H04N7/0112 ,  H04N7/0132 ,  H04N7/014 ,  H04N21/4318 ,  H04N21/44008 ,  H04N21/440281 ,  H04N21/4854

Abstract: It is an object to prevent the image quality deterioration of a moving image likely to include a plurality of the same consecutive images such as a movie video image or a CG video image due to the motion-compensated frame rate conversion (FRC) processing. An image displaying device is provided with an FRC portion (10) for converting the number of frames in an input image signal by interpolating an image signal to which a motion compensation processing has been given between the frames in the input image signal, a controlling portion (14) for controlling each portion according to an image tone mode selected by a user. The FRC portion (10) includes a motion vector detecting portion (11e) for detecting a motion vector between the frames of the input image signal, an interpolating vector evaluating portion (11f) for allocating an interpolating vector between the frames based on the motion vector information, and an interpolating frame generating portion (12d) for generating an interpolating frame from the interpolating vector. In the case that the image tone mode selected by the user is a predetermined image tone mode, the controlling portion (14) set the motion vector detected by the motion vector detecting portion (11e) to zero-vector to make the motion compensation processing of the FRC portion (10) ineffective.

Abstract translation: 本发明的目的是防止运动图像由于运动补偿帧速率转换（FRC）处理而可能包括诸如电影视频图像或CG视频图像的多个相同连续图像的运动图像的图像质量恶化。 图像显示装置具有FRC部分（10），用于通过内插输入图像信号中的帧之间已经给出运动补偿处理的图像信号来转换输入图像信号中的帧数，控制部分 （14），用于根据用户选择的图像色调模式来控制每个部分。 FRC部分（10）包括用于检测输入图像信号的帧之间的运动矢量的运动矢量检测部分（11e），用于基于运动矢量来分配帧之间的内插矢量的内插矢量评估部分（11f） 信息，以及用于从内插向量生成内插帧的内插帧生成部分（12d）。 在由用户选择的图像色调模式是预定的图像色调模式的情况下，控制部分（14）将由运动矢量检测部分（11e）检测到的运动矢量设置为零向量，以进行运动补偿处理 FRC部分（10）无效。

公开(公告)号：US07283157B2

公开(公告)日：2007-10-16

申请号：US10769100

申请日：2004-01-30

Applicant: James Edward Nave

Inventor： James Edward Nave

IPC: H04N17/02 ,  H04N5/52

CPC classification number: H03G3/001 ,  H04N5/165 ,  H04N5/52

Abstract: Disclosed are methods and systems for automatic level control (ALC) in a video signal processing system. The new ALC of the invention takes into account the gain applied to the video signal, such as that provided by an associated automatic gain control (AGC). Methods and systems of the invention use present gain control values and previous gain control values in quickly converging to a new offset control value.

Abstract translation: 公开了用于视频信号处理系统中的自动电平控制（ALC）的方法和系统。 本发明的新ALC考虑了应用于视频信号的增益，例如由相关联的自动增益控制（AGC）提供的增益。 本发明的方法和系统使用当前增益控制值和先前增益控制值快速收敛到新的偏移控制值。

公开(公告)号：US20070223069A1

公开(公告)日：2007-09-27

申请号：US11640397

申请日：2006-12-18

Applicant: Motoari Ota

Inventor： Motoari Ota

IPC: G03F3/08

CPC classification number: H04N5/165

Abstract: An image pickup apparatus includes an image sensor for photoelectrically converting light incident from a field to produce an image signal via al least two output portions. The temperature of the image sensor is sensed. The image sensor is driven such that the image signal is output via one of the output portions if the temperature sensed is higher than a predetermined value inclusive or is output via the two output portions if the former is lower than the latter. A black level corrector uses, when the image signal is output via one of the output portions, a predetermined single value as a reference to execute black level correction on the image signal, or uses, when the image signal is output via the two output portions, a particular predetermined value as a reference to execute black level correction on each of image signals output from respective output portions.

Abstract translation: 图像拾取装置包括用于光电转换从场传入的光以经由至少两个输出部分产生图像信号的图像传感器。 感测图像传感器的温度。 如果感测到的温度高于预定值，则图像传感器被驱动，使得图像信号经由输出部分之一输出，或者如果前者低于后者，则通过两个输出部分输出图像传感器。 当通过输出部分之一输出图像信号时，黑电平校正器使用预定的单个值作为参考，以对图像信号执行黑电平校正，或者当经由两个输出部分输出图像信号时 作为对从各输出部输出的各图像信号进行黑电平校正的基准的特定规定值。

公开(公告)号：US07250986B2

公开(公告)日：2007-07-31

申请号：US10820362

申请日：2004-04-07

Applicant: Keiko Miyajima

Inventor： Keiko Miyajima

IPC: H04N5/16

CPC classification number: H04N5/16 ,  H04N5/165

Abstract: The object of the invention is offering an external output video signal processor, which does not need coupling capacitor or clamping circuit. A system controller outputs a video signal by which the sync. tip level and the pedestal level were fixed to a predetermined value. It was considered as an external output video signal processor which carries out direct input of the video signal output to the video signal processing circuit from the system controller, and is characterized by providing a level shift circuit which adjusts the level and is sent to said latter part processing circuit.

Abstract translation: 本发明的目的是提供一种不需要耦合电容器或钳位电路的外部输出视频信号处理器。 系统控制器输出同步信号。 尖端电平和基座电平固定为预定值。 它被认为是一个外部输出视频信号处理器，它执行从系统控制器输出到视频信号处理电路的视频信号的直接输入，其特征在于提供一个电平移位电路，该电平移位电路调整电平并发送给所述后一个 零件加工电路。

公开(公告)号：US07206030B2

公开(公告)日：2007-04-17

申请号：US10760602

申请日：2004-01-20

Applicant: James Edward Nave

Inventor： James Edward Nave

IPC: H04N5/08 ,  H04N5/52

CPC classification number: H03G3/001 ,  H04N5/165 ,  H04N5/52

Abstract: Disclosed are methods and systems for automatic gain control (AGC) in circuits. The disclosed methods and systems provide accurate and rapidly converging automatic gain control suited for video applications. According to disclosed preferred embodiments of the invention, a signal amplitude controlling method is responsive to gain underflow or overflow. A new fine gain control value is extrapolated and a new coarse gain control value is determined. The new fine gain and new coarse gain control values are applied to the signal to produce an output signal within a pre-selected output amplitude range.

Abstract translation: 公开了电路中自动增益控制（AGC）的方法和系统。 所公开的方法和系统提供适合于视频应用的精确和快速收敛的自动增益控制。 根据本发明的优选实施例，信号幅度控制方法响应于增益下溢或溢出。 外推新的精细增益控制值，并确定新的粗增益控制值。 将新的精细增益和新的粗增益控制值应用于信号以在预选输出幅度范围内产生输出信号。