By Phase Change Of Chrominance Signal Or Subcarrier Patents (Class 348/654)
  • Patent number: 12231828
    Abstract: A system is provided for generating video content with hue-preservation in virtual production. The system comprises a memory for storing instructions and a processor configured to execute the instructions. Based on the executed instructions, the processor is further configured to control a saturation of scene linear data based on mapping of a first color gamut corresponding to a first encoding format of raw data to a second color gamut corresponding to a defined color space. The processor is further configured to determine a standard dynamic range (SDR) video content in the defined color space based on the scene linear data. Based on a scaling factor that is applied to three primary color values that describe the first color gamut, hue of the SDR video content is preserved.
    Type: Grant
    Filed: August 18, 2023
    Date of Patent: February 18, 2025
    Assignee: WARNER BROS. ENTERTAINMENT INC.
    Inventors: Michael Zink, Michael Smith
  • Patent number: 11728291
    Abstract: A semiconductor arrangement in fan out packaging has a molding compound adjacent a side of a semiconductor die. A magnetic structure is disposed above the molding compound, above the semiconductor die, and around a transmission line coupled to an integrated circuit of the semiconductor die. The magnetic structure has a top magnetic portion, a bottom magnetic portion, a first side magnetic portion, and a second side magnetic portion. The first side magnetic portion and the second side magnetic portion are coupled to the top magnetic portion and to the bottom magnetic portion. The first side magnetic portion and the second side magnetic portion have tapered sidewalls.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: August 15, 2023
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Wen-Shiang Liao, Huan-Neng Chen
  • Patent number: 11161212
    Abstract: A laser machine for machining workpieces has a workpiece support that forms a support main plane and is permeable to air perpendicularly to the support main plane. Supply air is directed to an upper side of the workpiece support. Air that is contaminated due to machining is discharged as exhaust air from the upper side of the workpiece support through the workpiece support to the bottom side of the workpiece support. In order to generate a laminar supply air flow which is perpendicular to the upper side of the workpiece support, the flow cross section of the supply air channel is divided into partial cross sections by partial cross sectional walls.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: November 2, 2021
    Assignee: TRUMPF Laser—und Systemtechnik GmbH
    Inventors: Nicolai Speker, Markus Wirnitzer, Gunter Fischer, Björn Sautter
  • Patent number: 9668021
    Abstract: A digital service signal apparatus is disclosed. The digital service signal apparatus includes a receiving module receiving signaling information having channel information for an application from the digital service signal, a generating module generating a request using the channel information, a sending module sending the generated request, a downloading module downloading the application, an executing module configured to execute the API related to the application and a registering module configured to register the specific key set according to the mode number.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: May 30, 2017
    Assignee: LG Electronics Inc.
    Inventors: Sejin Oh, Deokhyun Kim, Jaeseung Ko, Jongsung Choi, Kyoungsoo Moon, Jin Pil Kim, Youngmu Kwon, Sungguk Lim
  • Patent number: 8896625
    Abstract: A method and a system for fusing images in an image processing field are described. The method includes: capturing at least two frames of images having different intensity under different exposure time in the same scene; fusing the images having different intensity values according to an intensity mapping relation between every two frames of images in the images having different intensity values, and obtaining a fused image is, in which the intensity mapping relation represents a corresponding relation between an intensity value of a pixel location in a bright image and that at the corresponding location in a dark image. Through the method and the system for fusing the images according to the present invention, the dynamic range of the image is enhanced, and the fusing process has a desired result and is easy to implement.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: November 25, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Hai Chen, Lingzhi Liu
  • Patent number: 8831344
    Abstract: An apparatus and method for adjusting hue in an image processing device are provided. The method includes: setting a rotation angle of hue of each of regions of an image divided into a predetermined number about a central point; calculating coordinates of hue values Cr and Cb of an input pixel to determine in which of the regions the pixel is located; calculating an angle of the pixel in the determined region; calculating a movement angle using rotation angles set for the determined region and an adjacent region, and determining whether interpolation is to be performed to the angle of the pixel based on a difference between the movement angle and the angle of the pixel; and if it is determined that the interpolation is to be performed, calculating an interpolation angle using the movement angle and the angle of the pixel, and moving the pixel by the interpolation angle.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: September 9, 2014
    Assignee: Samsung Techwin Co., Ltd.
    Inventor: Atsushi Kobayashi
  • Patent number: 8659673
    Abstract: There is a problem in that when magnification chromatic aberration correction is carried out, the difference in reproducibility of high-frequency components, depending on the spatial position, between a color for which position shift correction is not performed and a color for which position shift correction is performed may influence the image quality of an output image. In order to perform magnification chromatic aberration correction, high-frequency components, which are lost due to the position shift correction of a color for which position shift correction is carried out, are extracted from a color for which position shift correction is not carried out, and are added to the color for which position shift correction is carried out. Therefore, the high-frequency components are restored in a pseudo manner.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 25, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takayuki Hara
  • Patent number: 7773259
    Abstract: The invention provides a hue adjusting device. When one color axis including different hues is being adjusted by the user, the hue adjusting device will rotate each of the different hue angles in different rotation angles. Accordingly, the color of an image adjusted by the invention will be smoother than the prior art. Namely, the image quality can be improved.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: August 10, 2010
    Assignee: Marketech International Corp.
    Inventors: Kai-Hsiang Hsu, Yi-Chia Shan, Tsan-Hung Tsai, Hsu-Chia Kao
  • Patent number: 7711346
    Abstract: Frequency translation, such as frequency up conversion of a video baseband or intermediate frequency to a desired frequency division broadcast channel, is provided utilizing a single sideband or image reject mixer and filtering having relaxed selectivity requirements. According to a preferred embodiment, a first single sideband mixer accepts an input signal at an intermediate frequency and up converts this signal to a high intermediate frequency. The image rejection provided by the single sideband mixer in combination with simple filtering provide sufficient signal quality to achieve desired levels of desired signal isolation, such as on the order of 40 dB. Preferably, a second single sideband mixer accepts the high intermediate frequency signal and down converts this signal to a desired transmission or broadcast frequency.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: May 4, 2010
    Assignee: Microtune (Texas), L.P.
    Inventors: Kirk B. Ashby, Albert H. Taddiken, S. Vincent Birleson
  • Patent number: 7403761
    Abstract: Frequency translation, such as frequency up conversion of a video baseband or intermediate frequency to a desired frequency division broadcast channel, is provided utilizing a single sideband or image reject mixer and filtering having relaxed selectivity requirements. According to a preferred embodiment, a first single sideband mixer accepts an input signal at an intermediate frequency and up converts this signal to a high intermediate frequency. The image rejection provided by the single sideband mixer in combination with simple filtering provide sufficient signal quality to achieve desired levels of desired signal isolation, such as on the order of 40 dB. Preferably, a second single sideband mixer accepts the high intermediate frequency signal and down converts this signal to a desired transmission or broadcast frequency.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: July 22, 2008
    Assignee: Microtune (Texas), L.P.
    Inventors: Kirk B. Ashby, Albert H. Taddiken, S. Vincent Birleson
  • Patent number: 7327404
    Abstract: Methods and systems of color image processing for color adjustments. Phase information of a received chrominance signal is detected and applied to adjust saturation and hue of the color by changing the magnitude and phase of the chrominance signal respectively. The phase information of the chrominance signal can also be used to adjust the brightness by changing the magnitude of a received luminance signal.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: February 5, 2008
    Assignee: Mediatek Incorporation
    Inventors: Hong-Hui Chen, Jen-Shi Wu
  • Patent number: 7184724
    Abstract: Frequency translation, such as frequency up conversion of a video baseband or intermediate frequency to a desired frequency division broadcast channel, is provided utilizing a single sideband or image reject mixer and filtering having relaxed selectivity requirements. According to a preferred embodiment, a first single sideband mixer accepts an input signal at an intermediate frequency and up converts this signal to a high intermediate frequency. The image rejection provided by the single sideband mixer in combination with simple filtering provide sufficient signal quality to achieve desired levels of desired signal isolation, such as on the order of 40 dB. Preferably, a second single sideband mixer accepts the high intermediate frequency signal and down converts this signal to a desired transmission or broadcast frequency.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: February 27, 2007
    Assignee: Microtune (Texas), L.P.
    Inventors: Kirk B. Ashby, Albert H. Taddiken, S. Vincent Birleson
  • Patent number: 7123308
    Abstract: An angle calculation unit calculates an angle formed by color difference signals R-Y, B-Y of each input pixel. Correction gain calculation units use the angle as a parameter to generate correction gains of hue, chroma, luminance (Y) gamma, and chroma (C) gamma for only correction regions. Accumulators accumulate the respective correction gains. In a circuit including from a multiplier (10) to a multiplier (18), the color difference signals R-Y, B-Y are multiplied by the correction gains of hue and chroma to correct the hue and chroma. A luminance/color difference gamma processing unit uses a correction function and correction gains of Y, C gammas to gamma-correct a luminance signal Y and color difference signals R-Y, B-Y.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: October 17, 2006
    Assignee: Victor Company of Japan, Limited
    Inventor: Tomoaki Uchida
  • Patent number: 6952239
    Abstract: A phase shift circuit includes a first sine generation circuit generating a sine-converted output signal (sin ?) of the phase shift input signal (?) and a reversed sine-converted output signal (?sin ?) of the phase shift input signal (?), a cosine generation circuit generating a cosine-converted output signal (cos ?) of the phase shift input signal (?), a first multiplication circuit, a second multiplication circuit, a third multiplication circuit, a fourth multiplication circuit, a first addition circuit adding an output signal of the first multiplication circuit to an output signal of the second multiplication circuit, and a second addition circuit adding an output signal of the third multiplication circuit to an output signal of the fourth multiplication circuit. This configuration makes the construction of a phase shift circuit for tint adjustment simple because of a coordinate transformation embedded in the configuration.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: October 4, 2005
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Keijiro Ueki
  • Patent number: 6888579
    Abstract: A method and system are provided for controlling tint of component video signals. The system includes a first input for receiving a first component video signal; a second input for receiving a second component video signal; circuitry including a first differential amplifier and a second differential amplifier for receiving the first and second component video signals from the first and second inputs, respectively; a first output connected to the circuitry for outputting a first tint control adjustment signal for the first component video signal; and a second output connected to the circuitry for outputting a second tint control adjustment signal for the second component video signal. The first outputted signal is represented as V+kU?2ckU and the second outputted signal is represented as U?kV+2ckV, where V represents the first component video signal, U represents the second component video signal, k is a constant, and c is a value greater than or equal to zero and less than or equal to one.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: May 3, 2005
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: William G. Miller
  • Publication number: 20030234893
    Abstract: A TV encoder with a function of adjusting hue for receiving a first and second color mixture signals comprises a first and second multiplexors, a sin-cos generator, a first and second multiplier circuits, and an adder circuits. The first multiplexor alternately outputs the second color mixture signal and its inverted signal. The second multiplexor alternately outputs a first angle signal representative of an angle and a second angle signal representative of the negative value of the angle. The angle is adopted to change the hue. The sin-cos generator outputs a sin and cos signals with a phase angle alternately determined by the angle and its negative value. The first color mixture signal and the sin signal are multiplied through the first multiplier circuit so as to be output as a first product signal. The second color mixture signal and its inverted signal are alternately multiplied by the cos signal through the second multiplier circuit so as to output as a second product signal.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Inventors: Chien-Hung Lin, I-Ping Hsu
  • Patent number: 6628342
    Abstract: A video signal processing apparatus A comprises: an adder 107 for generating a second address value S106 which has a predetermined phase difference from a first address value S101 outputted by an address value output means 120 and outputting the same; a selector 108 for selecting either a first address value S101 or a second address value S106 to output as an output signal S107; a vertical synchronizing signal output means 123 for outputting the vertical synchronizing signal S104 to the selector 108; a ROM 109 for outputting first data corresponding to the first address value S101 or second data corresponding to the second address value S106 as a signal S108; a loading hold mode flip-flop 110 for preserving the first data; a loading hold mode flip-flop 111 for preserving the second data; and a hue adjustment means B which adjusts the hue of the video signal by using the output signal S109 of the loading hold mode flip-flop 110 and the output signal S110 of the loading hold mode flip-flop 111.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: September 30, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Satoru Tanigawa
  • Patent number: 6515714
    Abstract: In a hue adjustment circuit for adjustment of a color difference signal by addition, subtraction, and multiplication of hue correction components (sin &agr;, cos &agr;) generated from a sub-carrier signal and a color difference signal (R—Y, B—Y), the hue correction components (sin &agr;, cos &agr;) are derived from a chroma signal processing circuit in a TV set by using a switch to select between the chroma signal and a phase-shifted sub-carrier.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: February 4, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Masanori Tachibana
  • Patent number: 6411340
    Abstract: A chrominance signal processing apparatus in a video signal processing system which has a simple configuration capable of achieving chrominance signal control and RGB transform functions using a single circuit.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: June 25, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ho-Seong Lee, Hong-Ki Park
  • Patent number: 6400416
    Abstract: A television receiver is provided including a first mixer having a first input adapted for receiving an input signal in a predetermined frequency range. It should be noted that the input signal may take the form of either a broadcast television signal, a cable television signal, or a digital signal transmitted over a cable delivery system. The first mixer further includes a second input adapted for receiving a first reference signal having a first operating frequency. In use, the first mixer is suitable for outputting an intermediate frequency signal having a frequency greater than at least one frequency in the predetermined frequency range. Also included is a filter for filtering the intermediate frequency signal. A phase shifting network is provided which includes an input adapted for receiving a second reference signal having a second operating frequency. The phase shifting network further includes a pair of outputs.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: June 4, 2002
    Assignee: Maxim Integrated Products
    Inventor: Martin Tomasz
  • Patent number: 6400415
    Abstract: A system and method for predistorting a signal which is to be amplified by a non-linear amplifier. The system and method uses additional predistortion circuits to eliminate the predistortion caused by amplifier input circuits and amplifier output circuits. In one aspect of the invention, the system and method uses a frequency response and phase corrector circuit to modify the amplitude versus frequency of the signal independent of phase.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: June 4, 2002
    Assignee: Harris Corporation
    Inventor: David Danielsons
  • Patent number: 6211923
    Abstract: A device corrects the chrominance parameters transmitted by a chrominance subcarrier of a television signal, by shifting the phase of two demodulation signals an angle, which depends upon the phase of the chrominance subcarrier. The demodulation signals are obtained from a phase-locked loop including a resistive and capacitive network having two outputs that differ by 90° with respect to each other. The device may include circuitry for individually shifting the phase of each signal provided by the RC network by adding to each signal a fraction of the other signal provided by the RC network. The fractional coefficients may be opposite to each other and depend upon the phase of the chrominance subcarrier.
    Type: Grant
    Filed: September 26, 1996
    Date of Patent: April 3, 2001
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventor: Yann Desprez-le Goarant
  • Patent number: 6124899
    Abstract: The invention features furnishing a representation of the quadrature amplitude modulation of two input signals (e.g., U and V video signals) based on the phase of a reference signal (e.g., a color burst reference signal). The two input signals are scaled based on the phase of the reference signal, and the scaling is synchronized to the phase of the reference signal.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: September 26, 2000
    Assignee: ATI International
    Inventors: Philip L. Swan, Antonio A. Rinaldi
  • Patent number: 6046779
    Abstract: A circuit arrangement processes a color signal reproduced from a record carrier, preferably a video tape, and modulated on a carrier wave of a first carrier frequency (color-under signal). The color signal modulated on the first carrier frequency is applied to a first mixer which converts the color signal to a second carrier frequency by mixing it with a first mixing signal. An output signal of the first mixer is applied to a comb filter circuit, whose output signal is applied to a second mixer. The second mixer converts the comb-filtered signal to a third carrier frequency by mixing it with a second mixing signal, in order to achieve an optimum comb filtering. The first mixing signal is subjected to a phase shift of a given magnitude by a first phase shifter after a given number of picture lines of the color signal.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: April 4, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Herbert Heinemann, Shin-Ichi Uchiyama
  • Patent number: 6005562
    Abstract: A technique for transmitting and receiving an electronic program guide which identifies programs that are to be transmitted. Electronic program guide (EPG) data includes image data representing images of reduced, less than normal, size to identify respective programs which are to be transmitted. The EPG data is combined with program data, the latter representing different programs transmitted on different broadcast channels, and the combined data is transmitted. On reception, the EPG data is separated from the received program data and the images of reduced, less than normal size represented by the EPG data are displayed in superposition over the received program.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: December 21, 1999
    Assignee: Sony Corporation
    Inventors: Tomohisa Shiga, Hideo Terasawa, Yasuaki Yamagishi
  • Patent number: 5995164
    Abstract: In a video encoder, the color distortion between pixels can be reduced by encoding the hue transition to limit very large hue (phase) transitions and encode a corresponding smaller phase transition. This produces fewer spurious colors between pixels during the encoding. This can be done by comparing the change in hue value to a reference value and adding or subtracting 2 .pi. to this reference value to reduce the absolute value of a modified delta hue signal.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: November 30, 1999
    Assignee: Zilog, Incorporated
    Inventor: Anatoliy V. Tsyrganovich
  • Patent number: 5917555
    Abstract: A composite video signal generator, which can be simply implemented using an application-specific integrated circuit (ASIC), is provided. The composite video signal generator according to the present invention has an oscillator for generating a clock signal at 4.multidot.f.sub.x of a color burst signal. A color burst generator creates the color burst signal by dividing the frequency of the clock signal and switching the divided clock signal according to a first control signal. A color signal is generated by phase-shifting the clock signal according to a second control signal to produce a phase-shifted clock signal, and dividing the frequency of the phase-shifted clock signal. The angle of the phase-shifting corresponds to a particular color. A luminance signal processor converts received luminance data into an analog luminance signal according to a third control signal.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: June 29, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jeom-han Bae
  • Patent number: 5696941
    Abstract: A data converting device for converting data by employing a plurality of LUTs stored in a single memory device. The device generates, with reference to two or more LUTs sequentially, a converted output data corresponding to input data and converting level selected by each LUT. The data converting device has a single memory device for storing two or more LUTs corresponding to the number of data converting modes by block units, each block including a plurality of sub-LUTs corresponding to the number of converting levels defined in each corresponding converting mode.
    Type: Grant
    Filed: February 1, 1995
    Date of Patent: December 9, 1997
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Lee-wha Jung
  • Patent number: 5426468
    Abstract: In a composite video system having a digitized composite video signal to be modified, wherein the digitized video signal has discrete values having sampling frequency Nf.sub.s where N is an integer greater than one, and f.sub.s is the color subcarrier frequency of the video input signal, a method and apparatus for utilizing look-up tables to create special color effects without decoding to luminance and chrominance, the method having the steps of storing in memory N sets of predetermined values such that the sets are addressable in a desired predetermined order and such that the predetermined values relate to a discrete equal distant points on a color subcarrier frequency wave corresponding to a desired color, retrieving from memory the stored values at a rate Nf.sub.s such that the N sets are addressed in the predetermined order, and using the digitized composite video signal to address said memory, to produce a digitized video output signal with different values, as desired.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: June 20, 1995
    Inventor: Timothy P. Jenison
  • Patent number: 5402181
    Abstract: In a composite video system having a digitized composite video signal to be modified, wherein the digitized video signal has discrete values having sampling frequency Nf.sub.s where N is an integer greater than one, and f.sub.s is the color subcarrier frequency of the video input signal, a method and apparatus for utilizing look-up tables to create special color effects without decoding to luminance and chrominance, the method having the steps of storing in memory N sets of predetermined values such that the sets are addressable in a desired predetermined order and such that the predetermined values relate to a discrete equal distant points on a color subcarrier frequency wave corresponding to a desired color, retrieving from memory the stored values at a rate Nf.sub.s such that the N sets are addressed in the predetermined order, and using the digitized composite video signal to address said memory, to produce a digitized video output signal with different values, as desired.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: March 28, 1995
    Inventor: Timothy P. Jenison
  • Patent number: 5355179
    Abstract: A hue control circuit for adjusting the color phase of a composite PAL television signal without demodulating the chrominance component of the composite PAL television signal uses a polyphase interpolator to change the phase of the modulated chrominance component. A set of coefficients corresponding to a desired hue adjustment is applied to the polyphase interpolator. A hue coefficient address circuit addresses a coefficient memory containing a plurality of sets of coefficients, the sets being in complementary pairs. During each horizontal blanking line interval for a given desired hue adjustment the hue coefficient address circuit swaps the sets of coefficients between the complementary pair defining the desired hue adjustment in synchronization with the alternating sign of one of the color difference components of the modulated chrominance component on a line by line basis.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: October 11, 1994
    Assignee: Tektronix, Inc.
    Inventors: John J. Ciardi, Terrence J. Trausch
  • Patent number: 5355172
    Abstract: A method and an apparatus for sampling a reference signal so as to generate an error signal indicative of a phase error between an actual sampling phase and a desired sampling phase. The desired sampling phase is displaceable from an optimum sampling phase, so as to facilitate the sampling of an NTSC color burst signal or to effect hue control during sampling of the modulated chroma sub-carrier. The reference signal is sampled at the frequency of said signal and a plurality of said samples are accumulated. After said samples have been accumulated, said accumulation is multiplied by the sine or by the cosine of the phase displacement angle between the optimum sampling phase and the derived sampling phase.
    Type: Grant
    Filed: October 21, 1992
    Date of Patent: October 11, 1994
    Assignee: Alpha Image Limited
    Inventors: Phillip Adams, Barry D. R. Miles
  • Patent number: RE38890
    Abstract: A data converting device for converting data by employing a plurality of LUTs stored in a single memory device. The device generates, with reference to two or more LUTs sequentially, a converted output data corresponding to input data and converting level selected by each LUT. The data converting device has a single memory device for storing two or more LUTs corresponding to the number of data converting modes by block units, each block including a plurality of sub-LUTs corresponding to the number of converting levels defined in each corresponding converting mode.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: November 22, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Lee-wha Jung