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1. 发明授权

US6038257A Motion and still video picture transmission and display 失效
标题翻译：运动和静态图像传输和显示
公开(公告)号：US6038257A
公开(公告)日：2000-03-14
申请号：US815805
申请日：1997-03-12
申请人： Harald Brusewitz , Bo Burman , Goran Roth
发明人： Harald Brusewitz , Bo Burman , Goran Roth
IPC分类号： H04N5/232 , H04N7/14 , H04N7/18 , H04N7/24
CPC分类号： H04N5/23293 , H04N7/147 , H04N7/18
摘要： An imaging system and method for alleviating perceptional problems of a viewer during the transmission and display of high resolution still images on a video system is disclosed. Through modifications to an encoder and decoder within the imaging system, the viewer may select a still image or portion thereof from a video image sequence for viewing. The imaging system and method ameliorate perceptional delays in displaying the lengthy high resolution still image by immediately displaying a lower-resolution, shorter-length video image frame corresponding to the still image. The lower resolution video image being displayed is then updated and refined with the image data from the high resolution still image as it is received.
摘要翻译：公开了一种用于在视频系统上传输和显示高分辨率静止图像期间减轻观看者的感知问题的成像系统和方法。通过对成像系统内的编码器和解码器的修改，观看者可以从视频图像序列中选择静止图像或其部分以进行观看。成像系统和方法通过立即显示与静止图像相对应的较低分辨率的较短长度的视频图像帧来改善显示长时间的高分辨率静止图像的感知延迟。然后，当接收到来自高分辨率静止图像的图像数据时，正在显示的低分辨率视频图像被更新和细化。

2. 发明申请

US20100169504A1 Service Layer Assisted Change of Multimedia Stream Access Delivery 有权
标题翻译：服务层协助改变多媒体流访问交付
公开(公告)号：US20100169504A1
公开(公告)日：2010-07-01
申请号：US12346314
申请日：2008-12-30
申请人： Frederic Gabin , Goran Roth
发明人： Frederic Gabin , Goran Roth
IPC分类号： G06F15/16
CPC分类号： H04L65/4076 , H04L65/1083 , H04L65/80 , H04W72/005
摘要： A streaming server sends a multimedia stream for delivery by a hybrid unicast-broadcast delivery network to a mobile terminal. To assist that mobile terminal change access delivery from unicast to broadcast, the streaming server sends multimedia content timing information that indicates one or more interstices in the content of the multimedia stream. The mobile terminal receives such multimedia content timing information upon receiving the multimedia stream by unicast. Although the mobile terminal determines the same multimedia stream is also available by broadcast, the mobile terminal initiates a change from unicast to broadcast during an interstice. Because the mobile terminal delays the access change until an interstice, any data loss resulting from the access change has a minimal effect on a subscriber's experience of the multimedia content. Moreover, regular occurrence of interstices ensures that such change will not be significantly delayed, and thus, neither will use of broadcast.
摘要翻译：流服务器发送多媒体流以供混合的单播广播传送网络传输到移动终端。为了帮助该移动终端改变从单播到广播的接入传送，流服务器发送指示多媒体流的内容中的一个或多个间隔的多媒体内容定时信息。移动终端通过单播接收多媒体流时接收这种多媒体内容定时信息。虽然移动终端确定相同的多媒体流也可以通过广播获得，但是移动终端在空格期间发起从单播到广播的改变。由于移动终端将访问改变延迟直到空格，所以由访问变化导致的任何数据丢失对用户对多媒体内容的体验影响最小。此外，间歇性发生的间隙确保这种改变不会被大大延迟，因此也不会使用广播。

3. 发明申请

US20050138529A1 Method of and system for video fast update 有权
标题翻译：视频快速更新的方法和系统
公开(公告)号：US20050138529A1
公开(公告)日：2005-06-23
申请号：US10841020
申请日：2004-05-07
申请人： Per Thorell , Jan-Ove Johansson , Goran Roth
发明人： Per Thorell , Jan-Ove Johansson , Goran Roth
IPC分类号： H04N19/89 , H04L12/28 , H03M13/00 , H04L12/56
CPC分类号： H04N19/89
摘要： A method of determining whether to generate a video refresh request includes receiving a packet and performing at least one of determining whether the received packet contains an error and determining whether a packet prior to the received packet was lost. Responsive to a determination that the received packet contains an error, an error index is increased. Responsive to a determination that a packet prior to the received packet has been lost, the error index is increased. Responsive to a determination that the received packet does not contain an error and that a packet prior to the received packet has not been lost, the error index is decreased. This Abstract is provided to comply with rules requiring an Abstract that allows a searcher or other reader to quickly ascertain subject matter of the technical disclosure. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
摘要翻译：确定是否生成视频刷新请求的方法包括：接收分组，并且执行确定所接收的分组是否包含错误并确定所接收的分组之前的分组是否丢失中的至少一个。响应于接收到的分组包含错误的确定，错误指数增加。响应于在接收到的分组之前的分组已经丢失的确定，错误指数增加。响应于接收到的分组不包含错误并且接收到的分组之前的分组没有丢失的确定，错误指数减小。提供本摘要以符合要求摘要的规则，允许搜索者或其他读者快速确定技术公开内容的主题。提交本摘要的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）。

4. 发明授权

US5243650A Method and apparatus for encryption/decryption of digital multisound in television 失效
标题翻译：电视数字多媒体加密/解码方法与装置
公开(公告)号：US5243650A
公开(公告)日：1993-09-07
申请号：US673408
申请日：1991-03-22
申请人： Goran Roth , Rolf Hulthen , Bo Sjoberg
发明人： Goran Roth , Rolf Hulthen , Bo Sjoberg
IPC分类号： H04L9/20 , G06F7/58 , H04K1/02 , H04N5/60 , H04N7/167
CPC分类号： G06F7/584 , H04K1/02 , H04N21/233 , H04N21/439 , H04N5/605 , H04N7/167 , H04N7/1675 , G06F2207/581 , G06F2207/583
摘要： The present invention relates to methods and apparatus for encryption and decryption, respectively, of digital sound in television. The decryption takes place in two steps. The first step, encryption with running key, is achieved by adding modulo 2 a pseudo random sequence to the digital signal containing a sound information. The pseudo random sequence is preferably generated by a non-linear feedback register initialized by the control word. The second step involves encryption of the control word, thereby being transmitted to the receiver in ciphered form. The encryption is preferably achieved by a microprocessor also performing coding of the control word for forward error correction. The control word in turn is generated by a true random sequence generator. The invention enables an encryption that is secure against breaking without deteriorating the sound quality and also enables efficient handling of the key of the encryption.

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