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81. 发明授权

US4415923A Signal processing circuit 失效
标题翻译：信号处理电路
公开(公告)号：US4415923A
公开(公告)日：1983-11-15
申请号：US294058
申请日：1981-08-18
申请人： Masaru Noda
发明人： Masaru Noda
IPC分类号： H04N9/69 , H04N9/04 , H04N9/07 , H04N9/64 , H04N9/67 , H04N9/68
CPC分类号： H04N9/045 , H04N9/04
摘要： A signal processing circuit for a color video camera. Image of an object is focused onto a plurality of light-sensitive elements (W, Ye, G, Cy) through a plurality of optical color filters which are in color complementating relationship and is taken out in terms of a luminance signal (Y), a red color signal (R) and a blue color signal (B) through photo-electric conversion. A green color signal is prepared on the basis of the red color signal, the blue color signal and the luminance signal. Gamma correction is made on the green color signal, the red color signal and the blue color signal. A luminance signal is reconstructed on the basis of the green color signal which has undergone the gamma-correction, and the gamma-corrected red and blue color signals. A color video signal which has undergone correct gamma-correction is thus obtained.
摘要翻译：一种用于彩色摄像机的信号处理电路。通过多个色彩互补关系的光学滤色器将物体的图像聚焦到多个感光元件（W，Ye，G，Cy）上，并根据亮度信号（Y）取出，通过光电转换的红色信号（R）和蓝色信号（B）。基于红色信号，蓝色信号和亮度信号准备绿色信号。对绿色信号，红色信号和蓝色信号进行伽马校正。基于经过伽马校正的绿色信号和伽马校正的红色和蓝色信号重建亮度信号。由此获得经过正确伽马校正的彩色视频信号。

82. 发明授权

US3970774A Electronic signal mixer 失效
标题翻译：电子信号调音台
公开(公告)号：US3970774A
公开(公告)日：1976-07-20
申请号：US563683
申请日：1975-03-31
申请人： Lucas John Bazin , Gary Ray Peterson
发明人： Lucas John Bazin , Gary Ray Peterson
IPC分类号： G06G7/14 , H04N5/202 , H04N9/69 , H04N5/14 , H04N5/20 , H04N5/22
CPC分类号： H04N9/69 , G06G7/14 , H04N5/202
摘要： An electronic signal mixer is provided for combining first and second signals by additively (or differentially) combining the first and second signals to provide a first output signal. The first and second signals are further combined in a multiplier circuit to provide an output signal which is a differential (or additive) combination of the first and second signals multiplied by a coefficient determined by a control voltage applied to the multiplier. The first combined signal and the product output of the multiplier are further combined to provide a resultant signal comprised of any proportionality of the first and second signals in accordance with the value of the control voltage.
摘要翻译：提供电子信号混合器用于通过相加地（或差分地）组合第一和第二信号以组合第一和第二信号以提供第一输出信号。第一和第二信号被进一步组合在乘法器电路中以提供输出信号，其是第一和第二信号的差分（或加法）组合乘以由施加到乘法器的控制电压确定的系数。乘法器的第一组合信号和乘积输出被进一步组合，以根据控制电压的值提供包括第一和第二信号的任何比例的结果信号。

83. 发明授权

US3604841A Correction apparatus for encoded color television signals 失效
标题翻译：编码彩色电视信号的校正装置
公开(公告)号：US3604841A
公开(公告)日：1971-09-14
申请号：US3604841D
申请日：1969-05-01
申请人： COLUMBIA BROADCASTING SYST INC
发明人： ETTLINGER ADRIAN B , MCMANN RENVILLE H JR
IPC分类号： H04N9/73 , H04N9/69 , H04N11/14 , H04N1/00
CPC分类号： H04N11/143 , H04N9/69
摘要： In one embodiment of the invention described herein, synchronous blue and red color carrier correction signals of proper phase are developed from an encoded color television signal. The carrier signals have introduced therein fixed increments of correction to produce thereby blue and red black level correction signals. The signals are also supplied to a set of modulator circuits wherein the signals are modulated by decoded blue and red color component signals. The resulting gain control signals, which have amplitudes proportional to the instantaneous amplitudes of the decoded signals, are also corrected in increments. Furthermore, the signals are supplied to another set of modulator circuits wherein the signals are modulated by signals comprising the differences between gamma corrected and linear decoded blue and red color component signals. The resulting gamma correction signals have introduced therein fixed increments of correction and are thereafter combined with the color black level and gain control signals and added to the encoded color television signal.

84. 发明授权

US3588338A Gamma correction and shading modulation circuitry for a television camera 失效
标题翻译：电视摄像机的伽马校正和调色调制电路
公开(公告)号：US3588338A
公开(公告)日：1971-06-28
申请号：US3588338D
申请日：1969-03-21
申请人： RCA CORP
发明人： DISCHERT ROBERT A , THORPE LAURENCE JOSEPH
IPC分类号： H04N5/16 , H04N5/202 , H04N9/69 , H04N5/20 , H04N5/21
CPC分类号： H04N5/202 , H04N5/217 , H04N9/69
摘要： IN A TELEVISION CAMERA APPARATUS IS PROVIDED FOR ADDING GAMMA CORRECTION AND SHADING MODULATION CORRECTION AND VARYING THE PEDESTAL HEIGHT OF VIDEO SIGNALS. ONE CIRCUIT COMBINES THE FUNCTIONS OF GAMMA CORRECTION AND SHADING MODULATION CORRECTION. ANOTHER CIRCUIT COMBINES THE FUNCTIONS OF GAMMA CORRECTION AND PEDESTAL OR BLACK LEVEL CONTROL WHILE MAINTAINING THE WHITE LEVEL OF THE SIGNALS CONSTANT.

85. 发明授权

US2956113A Circuit arrangement for multiplying functions in the form of electrical signals 失效
标题翻译：用于以电信号的形式乘以功能的电路布置
公开(公告)号：US2956113A
公开(公告)日：1960-10-11
申请号：US75532658
申请日：1958-08-15
申请人： PHILIPS CORP
发明人： JOHANNES KAASHOEK , TEUNIS POORTER , PHILIPPE VALETON JOSUE JEAN
IPC分类号： G06G7/16 , H04N5/202 , H04N9/69
CPC分类号： H04N5/202 , G06G7/16 , H04N9/69

86. 发明授权

US11557265B2 Perceptual color enhancement based on properties of responses of human vision system to color stimulus 有权
公开(公告)号：US11557265B2
公开(公告)日：2023-01-17
申请号：US17491085
申请日：2021-09-30
申请人： Samsung Electronics Co., Ltd.
发明人： Chang Su , Chenguang Liu , Pradeep Nagesh
IPC分类号： G09G5/02 , G09G5/06 , H04N1/60 , H04N5/57 , H04N9/64 , H04N9/69 , H04N9/68 , G09G5/00
摘要： A method includes determining, by a computing device, a working color space of a source content and a resulting content. The computing device models color saturation variations of different hues in the working color space with one or more properties of responses of a human vision system (HVS) to color stimulus. The computing device generates one or more color saturation variation models based on the responses of the HVS to color stimulus. An input color is mapped from the source content to an output color in the working color space using the one or more color saturation variation models.

87. 发明授权

US11533460B2 High dynamic range and wide colour gamut comfort measurement and feedback 有权
公开(公告)号：US11533460B2
公开(公告)日：2022-12-20
申请号：US16945607
申请日：2020-07-31
申请人： NBC UNIVERSAL MEDIA, LLC
发明人： Arley Christopher Seeger
IPC分类号： H04N9/64 , H04N9/69 , H04N9/73 , G06T7/90 , G06V20/40
摘要： Systems and methods for processing video content are disclosed. According to at least one embodiment, a method of processing video content includes: receiving the video content; identifying a portion of the video content based on one or more of a plurality of factors, the plurality of factors including colour, raster percentage, brightness, and temporal factors; and providing an indicator that facilitates visual recognition of the identified portion of the video content.

88. 发明申请

US20220311983A1 VIDEO SIGNAL PROCESSING APPARATUS, VIDEO SIGNAL PROCESSING METHOD, AND IMAGE-CAPTURING APPARATUS 有权
公开(公告)号：US20220311983A1
公开(公告)日：2022-09-29
申请号：US17842918
申请日：2022-06-17
申请人： SONY GROUP CORPORATION
发明人： Koji KAMIYA
IPC分类号： H04N9/73 , H04N9/64 , H04N9/69
摘要： This apparatus includes a first processing circuit section that includes a tone controller that imparts tone curve characteristics for tone adjustment to an input video signal having linear characteristics; and a second processing circuit section that includes a first curve characteristics imparting section that imparts, to the video signal processed by the first processing circuit section, first curve characteristics for output, and generates a first output video signal.

89. 发明授权

US11455708B2 Display apparatus and operating method thereof 有权
公开(公告)号：US11455708B2
公开(公告)日：2022-09-27
申请号：US17195632
申请日：2021-03-08
申请人： LG ELECTRONICS INC.
发明人： Hyomin Kim , Yeonoh Nam
IPC分类号： G09G5/10 , G06T5/00 , G06T5/40 , H04N1/60 , H04N9/67 , H04N9/69
摘要： A tone mapping apparatus includes a dynamic tone mapping module configured to generate a first tone mapping curve based on a luminance distribution histogram of input image data and generate first image data from the input image data using the first tone mapping curve, and a processor configured to generate an RGB distribution histogram, a detail region histogram and a high-luminance region histogram based on pixel information of the first image data, generate a second tone mapping curve using the RGB distribution histogram, the detail region histogram and the high-luminance region histogram and generate output image data from the first image data using the second tone mapping curve.

90. 发明授权

US11425337B2 Camera system, event recording system and event recording method 有权
公开(公告)号：US11425337B2
公开(公告)日：2022-08-23
申请号：US16513016
申请日：2019-07-16
申请人： DENSO CORPORATION
发明人： Toshikazu Murao , Kazuyoshi Akiba , Tetsuya Kimata , Kazuhiko Kobayashi , Takayuki Kimura
IPC分类号： H04N9/69 , H04N1/21 , G06V20/56 , G07C5/08 , H04N7/18 , H04N5/235
摘要： To reduce complication of a configuration of a vehicle while suppressing an increase in weight of the vehicle, a camera system mounted on a vehicle includes an imaging unit to capture multiple frame images of an outside of the vehicle per cycle and an image processor to obtain the multiple frame images from the imaging unit and separate the multiple frame images into a first given number of frame images as a recognition target and a second given number of frame images as a storage target to be stored in an image recorder. The image processor separately outputs the first and second given numbers of frame images to be recognized and stored, respectively.

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