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公开(公告)号：EP1673943A1
公开(公告)日：2006-06-28
申请号：EP04794940.9
申请日：2004-10-12
发明人： BOYCE, Jill, Mac Donald , GOMILA, Cristina , LLACH, Joan , TOURAPIS, Alexandros , COOPER, Jeffrey, Allen , YIN, Peng
IPC分类号： H04N7/26
CPC分类号： H04N5/262 , G06T5/002 , G06T5/10 , G06T2207/20021 , G06T2207/20052 , G06T2207/20204 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/85
摘要： The simulation of film grain in an image makes use of parameters contained in a Supplemental Enhancement Information (SEI) message that accompanies the image upon transmission. The SEI message specifies film grain simulation parameters such as the film simulation model, the blending mode, and color space.
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公开(公告)号：EP1415463A2
公开(公告)日：2004-05-06
申请号：EP02752407.3
申请日：2002-07-17
IPC分类号： H04N5/38
CPC分类号： H04L1/02 , H04H20/16 , H04H20/28 , H04H20/40 , H04H60/11 , H04H60/27 , H04N19/61 , H04N19/895 , H04N21/23406 , H04N21/234327 , H04N21/2365 , H04N21/2383 , H04N21/25816 , H04N21/2585 , H04N21/4181 , H04N21/42684 , H04N21/4331 , H04N21/4347 , H04N21/4382 , H04N21/44209 , H04N21/6112 , H04N21/6187 , H04N21/6402
摘要： A method and apparatus for improving the reception of digitally modulated signals. A main signal (31) and a supplemental signal (21) are provided in the transmitter. The signals may be substantially identical except that the supplemental signal is advanced in time with respect to the main signal. The main and supplemental signals are sent from the transmitter to the receiver modulated on a signal. At the received, the supplemental signal is stored in a buffer. If the main signal is undesirably changed during transmission, corresponding portions of the supplement signal are substituted for the undesired portions of the main signal.
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公开(公告)号：EP1407560A2
公开(公告)日：2004-04-14
申请号：EP02756497.0
申请日：2002-07-12
CPC分类号： H04W72/005 , H04B7/2693 , H04B2201/70701
摘要： A method for providing information to a plurality of wireless mobile communication devices. The method includes dedicating at least one channel (3061) of a plurality of spread spectrum data channels (306) as a broadcast channel. The frequency and phase of a carrier signal and of a chip rate clock (206) of the at least one channel are synchronized for each of a plurality of cell transmitters (204) of a respective plurality of base stations (134). The Information is then broadcast over the at least one dedicated channel from each base station.
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4.发明公开
公开(公告)号：EP1803303A2
公开(公告)日：2007-07-04
申请号：EP05813106.1
申请日：2005-10-17
IPC分类号： H04N7/26
CPC分类号： G06T5/002 , G06T2207/10016 , G06T2207/20204 , H04N5/21 , H04N19/117 , H04N19/14 , H04N19/176 , H04N19/46 , H04N19/86
摘要： Reduction in the blockiness of a simulated film grain block can be achieved either by the use of adaptive downscaling or adaptive deblocking filtering to adjust the intensity of the pixels at the block edge in accordance with at least one film grain block parameter, such as film grain size, intensity and texture. Performing such adaptive downscaling or adaptive deblocking filtering achieves improved performance at lower computational cost by avoiding modification of film grain block pixels in lesser affected areas.
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5.发明公开TECHNIQUE FOR FILM GRAIN SIMULATION USING A DATABASE OF FILM GRAIN PATTERNS 审中-公开利用数据库粒度模式进行胶片模拟的技术
公开(公告)号：EP1690423A1
公开(公告)日：2006-08-16
申请号：EP04813479.5
申请日：2004-12-01
发明人： COOPER, Jeffrey, Allen , BOYCE, Jill, MacDonald , TOURAPIS, Alexandros , GOMILA, Cristina , LLACH, Joan , YIN, Peng
摘要： Individual pixels in an image block undergo blending with film grain from a film grain block randomly selected from among a pool of previously established film grain blocks in accordance with a luma characteristic of the image block. Prior to blending, the selected film grain block undergoes deblocking by a deblocking filter ( 28 ). Following blending, a clipper clips the individual pixels prior to display. The pool of film grain blocks is created by scaling a set of film grain patterns in accordance with at least one parameter of a film grain information message that accompanies the image block.
摘要翻译： 根据图像块的亮度特性，图像块中的各个像素与从先前建立的胶片颗粒块的池（18）中随机选择的胶片颗粒块进行混合。 在混合之前，选定的胶片颗粒块通过去块滤波器（28）进行去块。 在混合之后，剪辑器（32）在显示之前剪切单个像素。 通过根据伴随图像块的胶片颗粒信息消息的至少一个参数缩放一组胶片颗粒图案来创建胶片颗粒块的池（18）。
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公开(公告)号：EP1561344A1
公开(公告)日：2005-08-10
申请号：EP03774961.1
申请日：2003-10-27
IPC分类号： H04N7/12
CPC分类号： H04N21/4347 , H04N19/114 , H04N21/234381 , H04N21/2365 , H04N21/23655 , H04N21/26275 , H04N21/2662
摘要： In a multi-channel video transmission system in which channel video segments are operated on by corresponding channel video encoders to encode the video segments into frames organized into groups of defined frame types, an apparatus and method to cause a temporal staggering for the processing of a specific frame type among the various channels. In one preferred embodiment, the apparatus includes a frame counter to synchronize reset signals associated with the corresponding channel video encoders and a means for providing a timing offset to channel video encoders corresponding to a selected frame stagger for a particular corresponding channel.
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7.发明公开SYSTEM AND METHOD FOR RECORDING AND DISPLAYING VIDEO PROGRAMS FOR MOBILE HANDHELD DEVICES 有权系统和方法录制和播放视频节目FOR移动便携设备
公开(公告)号：EP1449368A1
公开(公告)日：2004-08-25
申请号：EP02786695.3
申请日：2002-11-08
CPC分类号： H04N21/44029 , H04N19/00 , H04N19/12 , H04N19/162 , H04N19/169 , H04N19/40 , H04N19/56 , H04N21/2662 , H04N21/4126 , H04N21/4147 , H04N21/4334 , H04N21/4356 , H04N21/440218 , H04N21/440263 , H04N21/482
摘要： A television recording and playback system such as a personal video recorder digitally encodes a television program in handheld format and stores it in local memory. The stored handheld format television program can be outputted from the television recording and playback system, using either wired or wireless protocols, to a handheld device such as a personal data assistant for viewing on the handheld device. Alternatively the handheld device can output the television program to a different device such as another handheld device. The selection of programs for recording in large display format, handheld format, or simultaneously in both formats, can be by using a graphical user interface generated by the television recording and playback system or by the handheld device, and preferably with an electronic program guide containing information about programs to be, and being, broadcast.
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8.发明公开SMARTCARD UART FOR MINIMIZING PROCESSOR DEMANDS IN A CONDITIONAL ACCESS SYSTEM 审中-公开CHIPCARD UART尽量减少对处理器的要求在有条件接入系统
公开(公告)号：EP1438854A1
公开(公告)日：2004-07-21
申请号：EP01975586.7
申请日：2001-09-28
CPC分类号： H04N21/4181 , H04N7/163
摘要： A smart card UART which includes a memory capable of storing a 5 bite command string along with error data. Inclusion of a memory in the UART allows the smart card to store serial communications commands received from a serial interface until the smart card processor is able to process such commands.
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9.发明公开
公开(公告)号：EP1454484A1
公开(公告)日：2004-09-08
申请号：EP02780597.7
申请日：2002-11-08
IPC分类号： H04N5/76
CPC分类号： H04N21/4147 , G11B19/025 , G11B27/034 , G11B27/105 , G11B27/34 , G11B27/36 , G11B2220/20 , H04N5/76 , H04N5/782 , H04N21/4312 , H04N21/4314 , H04N21/4335 , H04N21/4345 , H04N21/4532 , H04N21/47214 , H04N21/4751 , H04N21/4753 , H04N21/4756 , H04N21/4882
摘要： A system and method for a television program recording and playback system such as a Personal Video Recorder (PVR) or Digital Video Recorder (DVR) wherein the individual users and, optionally, categories of users, are established, an individual user logs in and selects a television program to be recorded. Later, after the program has been recorded, when a user logs in, a menu listing only those programs for which that user has selected for recording may be displayed in the graphical user interface (GUI). A user may also designate other users for a selected program and after that program is recorded and a designated user logs in, the list of programs includes those for which the logged in user has been designated. When there is insufficient storage space to record a program selected to be recorded, the system and method automatically delete from storage previously recorded programs according to a protocol which may consider how many of the permitted users have viewed the program, the thumbs up or thumbs down ratings assigned to the program by those users which have viewed the program, the group to which users which have not yet viewed the program belong, or how recently the stored program was viewed by a user. Passwords may be required for a user to log in.
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公开(公告)号：EP1433317A1
公开(公告)日：2004-06-30
申请号：EP02756531.6
申请日：2002-07-19
CPC分类号： H04L1/08 , H04H20/30 , H04H20/42 , H04H20/72 , H04L1/007 , H04L1/0086 , H04L2001/0093 , H04N5/211 , H04N5/4401 , H04N19/37 , H04N19/39 , H04N19/67 , H04N19/89 , H04N21/234327 , H04N21/2365 , H04N21/2383 , H04N21/4347 , H04N21/4382 , H04N21/4392 , H04N21/44004 , H04N21/44209
摘要： In a digital broadcast communications system, a higher priority component (11) and a lower priority component (10) are broadcast from a transmitter to a receiver. Each of these components generates a main (13, 30) and a supplemental (12, 20) signal, and each supplemental signal (12, 20) is advanced in time with respect to the corresponding main signal (13, 30). The main and supplemental signals for both the higher (11) and lower (10) priority components are combined (40) into a single signal, which is broadcast to a receiver. In the receiver, the time advanced supplemental signals are stored in a buffer (136, 150) to time align them with their corresponding main signals. Both main signals (133, 132) are processed in the normal manner in the receiver, and are also monitored (121) to detect a fading event. When a fading event is detected, the corresponding buffered supplemental signals are substituted for the faded main signals and normal processing continues.
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