公开(公告)号：EP2124337B1

公开(公告)日：2016-04-27

申请号：EP08156867.7

申请日：2008-05-23

申请人： Zoran Corporation

发明人： Jansson, Christer

IPC分类号： H03K3/356 ,  H03K5/24

CPC分类号： H03K3/356139 ,  H03K5/249

公开(公告)号：EP2124338B1

公开(公告)日：2013-01-02

申请号：EP08156869.3

申请日：2008-05-23

申请人： Zoran Corporation

发明人： Jansson, Christer

IPC分类号： H03K5/156 ,  H03K7/08 ,  G06F1/04 ,  G06F1/025

CPC分类号： H03K5/1565 ,  G06F1/04 ,  H03K2005/00065

公开(公告)号：EP2510626A1

公开(公告)日：2012-10-17

申请号：EP10836482.9

申请日：2010-12-06

申请人： Zoran Corporation

发明人： STEVENSON, Jan-Michael

IPC分类号： H04B1/06

CPC分类号： H03F1/0277 ,  H03F1/0261 ,  H03F3/195 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/294 ,  H03F2200/336 ,  H03F2200/375 ,  H03F2200/411 ,  H03F2200/432 ,  H03F2200/451 ,  H03G3/3068

摘要： Systems and methods which provide a multimode tuner architecture implementing direct frequency conversion are shown. Embodiments provide a highly integrated configuration wherein low noise amplifier, tuner, analog and digital channel filter, and analog demodulator functionality are provided in a single integrated circuit. A LNA of embodiments implements a multi-path configuration with seamless switching to provide desired gain control while meeting noise and linearity design parameters. Embodiments of the invention implement in-phase and quadrature (IQ) equalization and a multimode channelization filter architecture to facilitate the use of direct frequency conversion. Embodiments implement spur avoidance techniques for improving tuner system operation and output using a clock signal generation architecture in which a system clock, sampling clock frequencies, local oscillator (LO) reference clock frequencies, and/or the like are dynamically movable.

摘要翻译： 其提供的多模调谐器架构实现直接变频系统和方法中。 实施例提供worin在单个集成电路提供低噪声放大器，调谐器，模拟和数字信道滤波器，和模拟解调器的功能在此高度集成的配置。 实施例的LNA实现具有无缝切换的多路径配置以提供所需的增益控制，同时满足噪声和线性设计参数。 本发明实施例在同相和正交（IQ）均衡和多模信道滤波器架构实现，以方便使用直接变频。 实施例实现正避免技术用于提高调谐器系统的操作和使用其中一个时钟信号产生结构的系统时钟输出，采样时钟频率，本机振荡器（LO）的参考时钟的频率，和/或类似物是可动态移动。

公开(公告)号：EP1884109A1

公开(公告)日：2008-02-06

申请号：EP06751413.3

申请日：2006-04-24

申请人： ZORAN CORPORATION

发明人： GERZBERG, Levy

IPC分类号： H04M1/725 ,  H04N7/173

CPC分类号： H04N21/41407 ,  H04M1/72527 ,  H04M1/72555 ,  H04N21/4135 ,  H04N21/4332 ,  H04N21/478 ,  H04N21/4788 ,  H04N21/6131 ,  H04N21/6181 ,  H04N21/632 ,  H04N21/8153

摘要： A mobile (cellular) telephone capability is built into a non-mobile appliance, such as a video recorder, television set-top box or personal computer, in order to receive calls from another telephone that is remote of the appliance. The appliance has a unique telephone number that is dialed by the other telephone to establish a direct connection between the two over a mobile telephone network. Data are then sent to the appliance through the network, such as data of pictures taken by a mobile picture telephone and any accompany sound. A user of a picture telephone may conveniently send pictures to his or her home or office while traveling on vacation or business, and even remotely cause such pictures to be sent from the appliance to friends and family.

公开(公告)号：EP1025536B1

公开(公告)日：2007-03-21

申请号：EP97949695.7

申请日：1997-11-21

申请人： ZORAN CORPORATION

发明人： CHUI, Charles, K.

IPC分类号： G06T9/00 ,  G06F17/14

CPC分类号： G10L19/00 ,  G06F17/148 ,  G10L25/27 ,  H04N19/42 ,  H04N19/63

摘要： A data processing system and method for performing a wavelet-like transformation (122) and a corresponding inverse wavelet-like transformation (132) is disclosed. The wavelet-like transformation is performed on input data so as to produce decomposed data. For each set of decomposed data samples of the decomposed data, each decomposed data sample of the set is produced by computing a weighted sum of a predefined set of data samples selected from (A) subsets of the set of input data samples, (B) one or more spatially shifted subsets of the set of input data samples, (C) the sets of decomposed data samples, and (D) one or more spatially shifted sets of the sets of decomposed data samples. The weighted sum is computed using only add and bit shift operations. Similarly, the inverse wavelet-like transformation is performed on decomposed data so as to produce reconstructed data (108).

公开(公告)号：EP1758403A2

公开(公告)日：2007-02-28

申请号：EP06076666.4

申请日：1998-12-23

申请人： ZORAN CORPORATION

发明人： Gill, Aharon ,  Rosenthal, Elan ,  Fraenkel, ,Miri ,  Ofir, Ram ,  Anisman, David ,  Ironi, Alon ,  Goldberg, Paul, R

IPC分类号： H04N7/50

CPC分类号： H04N19/423 ,  H04N19/44 ,  H04N19/61

摘要： A system and method for decoding and displaying a video bitstream representing video images and displaying the video images. The present invention discloses a split memory manager design which is particularly adapted to display UPEG-2 format video images. In addition, the present invention discloses a novel way of managing the video memory used in a video decode and display system. Finally, an intraframe video data compression system and method is disclosed to complement the disclosed video decoding and displaying system.

摘要翻译： 一种用于解码和显示代表视频图像的视频比特流并显示视频图像的系统和方法。 本发明公开了一种特别适用于显示UPEG-2格式视频图像的分割存储器管理器设计。 另外，本发明公开了一种管理视频解码和显示系统中使用的视频存储器的新颖方式。 最后，公开了一种帧内视频数据压缩系统和方法，以补充所公开的视频解码和显示系统。

公开(公告)号：EP1700268A1

公开(公告)日：2006-09-13

申请号：EP04814198.0

申请日：2004-12-14

申请人： ZORAN CORPORATION

发明人： PINTO, Victor ,  GALIL, Erez

IPC分类号： G06T5/00 ,  G06T5/20

CPC分类号： H04N5/3572 ,  G06T5/006 ,  H04N5/217 ,  H04N5/2178 ,  H04N5/243 ,  H04N9/045

摘要： Techniques for modifying data of an image that can be implemented in a digital camera, video image capturing device and other optical systems are provided to correct for image shading variations appearing in data from a two-dimensional photo-sensor. These variations can be caused by imperfect lenses, non-uniform sensitivity across the photo-sensor, and internal reflections within a housing of the optical system, for example. In order to correct for these variations, a small amount of modification data is stored in a small memory within the camera or other optical system, preferably separate correction data for each primary color. The modification data is generated on the fly, at the same rate as the image data is being acquired, so that the modification takes place without slowing down data transfer from the image sensor.

摘要翻译： 提供用于修改可以在数码相机，视频图像捕获设备和其他光学系统中实现的图像的数据的技术，以校正在来自二维光传感器的数据中出现的图像阴影变化。 例如，这些变化可能由不完美的镜片，整个光电传感器上的不均匀灵敏度以及光学系统外壳内的内部反射引起。 为了校正这些变化，将少量修改数据存储在照相机或其他光学系统内的小存储器中，优选为每种基色分离校正数据。 修改数据在运行中以与正在采集图像数据相同的速率生成，从而在不减慢来自图像传感器的数据传输的情况下进行修改。

公开(公告)号：EP0710419A1

公开(公告)日：1996-05-08

申请号：EP94923431.0

申请日：1994-07-11

申请人： ZORAN CORPORATION

发明人： HUANG, Jinshi ,  CASEY, Robert, F.

IPC分类号： H04N5

CPC分类号： H04N5/211

摘要： A ghost cancellation system for filtering out ghosts in a received video signal including an active filter (14) having a filtering function defined by a first set of coefficients (akold) and having an input and an output. A transmitted ghost cancellation reference (GCR) signal is applied to the input of the active filter during a vertical blanking period to generate a filtered GCR signal at the output of active filter. The filtered GCR signal is compared with a ghostless GCR signal to obtain an error signal, and the filter coefficients are adjusted based on the error signal to obtain a set of new coefficients (aknew). The active filter includes a feedforword FIR filter (14-1) and an adder (14-3) serially connected between the input and the output, a feedback IIR filter (14-2) and a switch (14-4) serially connected between the output and the adder, the feedforward FIR filter and the feedback IIR filter having filtering functions defined by the coefficients.

公开(公告)号：EP0630506A4

公开(公告)日：1995-01-04

申请号：EP93903444

申请日：1993-01-13

申请人： ZORAN CORPORATION

发明人： ADAR, RUTIE ,  GRANSKY, MICHAEL ,  RETTER, RAFAEL ,  GILL, AHARON ,  SHENBERG, ISAAC

IPC分类号： G06T9/00 ,  H04N1/41 ,  H04N7/26 ,  H04N7/30 ,  G06K9/36

CPC分类号： H04N19/42 ,  H04N19/115 ,  H04N19/124 ,  H04N19/126 ,  H04N19/13 ,  H04N19/14 ,  H04N19/146 ,  H04N19/149 ,  H04N19/172 ,  H04N19/176 ,  H04N19/60 ,  H04N19/91

摘要： A method of bit rate control and block allocation for discrete cosine transform (DCT) image signal compression includes the steps of (a) partitioning the image signals in blocks (b) calculating DCT coefficients in all blocks, (c) obtaining a measure of block activity (BACT) for each block based on DCT coefficients and for the total image activity (ACT) as a sum of the measures of all block activity, (d) determining a code allocation factor (AF) for each block based on the ratio of block activity (BACT) to target code volume (TCV data) for the coded image date, and (e) allocating bits for each block using the allocation factor (AF) for each block and the target code volume (DCV data). Steps (a-d) are carried out with a first statistical pass through the image data, and step (e) is carried out in a second compression pass through the image data.

公开(公告)号：EP0424119A2

公开(公告)日：1991-04-24

申请号：EP90311387.6

申请日：1990-10-17

申请人： ZORAN CORPORATION

发明人： Friedlander, Rami ,  Retter, Rafi

IPC分类号： G06F15/332

CPC分类号： G06F17/147 ,  G06T9/007

摘要： A discrete cosine transform/inverse discrete transform or DCT/IDCT integrated circuit capable of performing both DCT and IDCT, includes a processor for processing DCT/IDCT data including, input buffer and arithmetic logic unit for processing incoming data and first pass pre-processed data, multiplier and accumulator unit for performing mathematical operations on DCT/IDCT data, and output buffer and arithmetic logic unit for processing first pass pre-processed data and outgoing data. Also provided is an interleaved random access memory for storing DCT/IDCT data during various stages of processing.

摘要翻译： 离散余弦变换/逆离散变换或能够执行DCT和IDCT的DCT / IDCT的集成电路，包括用于处理DCT / IDCT数据，包括INPUTBUFFER和算术逻辑单元，用于处理输入数据和第一通过预处理的数据的处理器 ，乘法器和累加器单元，用于对DCT / IDCT数据，和输出缓冲器和算术逻辑单元执行数学运算，用于处理第一通过预加工数据和输出数据。 所以被提供给交错随机存取存储器用于在处理的各个阶段中存储DCT / IDCT的数据。