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31. 发明申请

US20050216472A1 Efficient multicast/broadcast distribution of formatted data 审中-公开
标题翻译：高效的组播/广播分发格式化数据
公开(公告)号：US20050216472A1
公开(公告)日：2005-09-29
申请号：US10813643
申请日：2004-03-29
申请人： David Leon , Igor Danilo Curcio , Emre Aksu
发明人： David Leon , Igor Danilo Curcio , Emre Aksu
IPC分类号： G06F17/30 , H04L1/18
CPC分类号： H04L12/1863 , G06F16/40
摘要： A method, system, device and software code product are disclosed which provide efficient multicast/broadcast distribution of formatted data. Formatted data can comprise metadata and content (media data) and several embodiment of the inventions disclose retransmitting the metadata in order to increase the reliability of the file distribution by increasing the chances that the metadata is received without error. In addition, embodiments of the invention disclose scheduling transmission of data packets of formatted data so that the metadata packets are transmitted at an earlier time location than they occur in the original formatted data file to decrease latency in file playback.
摘要翻译：公开了提供格式化数据的有效多播/广播分发的方法，系统，设备和软件代码产品。格式化的数据可以包括元数据和内容（媒体数据），并且本发明的几个实施例公开了重传元数据，以便通过增加元数据在没有错误的情况下被接收的机会来增加文件分发的可靠性。此外，本发明的实施例公开了调度格式化数据的数据分组的传输，使得元数据分组在比原始格式化的数据文件中发生的更早的时间位置被传送，以减少文件重放的延迟。

32. 发明授权

US07606928B2 Method and device for controlling receiver buffer fullness level in multimedia streaming 有权
标题翻译：控制多媒体流中接收缓冲区饱和度的方法和装置
公开(公告)号：US07606928B2
公开(公告)日：2009-10-20
申请号：US10395015
申请日：2003-03-21
申请人： Ru-Shang Wang , Viktor Varsa , David Leon , Emre Baris Aksu , Igor Danilo Diego Curcio
发明人： Ru-Shang Wang , Viktor Varsa , David Leon , Emre Baris Aksu , Igor Danilo Diego Curcio
IPC分类号： G06F15/16 , G06F13/00
CPC分类号： H04L65/608 , H04L29/06027 , H04L65/80
摘要： A method to provide to a sender of RTP packets the actual receiver buffer fullness level in a receiver of the RTP packets at a certain time instant represented as remaining playout duration in time. The receiver sends in an RTCP report the sequence number of a selected RTP packet in the receiver buffer and the time difference between the scheduled playout time of this packet and the current time. Based on this timing information, the sender calculates the amount of time it would take for the receiver buffer to empty if the receiver continues to playout at normal speed and no further RTP packets arrive to the receiver buffer. This receiver buffer fullness level information can be used at the sender to adjust the transmission rate and/or nominal playout rate of the RTP packets in order to maintain a targeted receiver buffer fullness level.
摘要翻译：向RTP分组的发送者提供RTP分组的接收机中的实时接收机缓冲器满量级的方法，该接收器在特定时刻即时表示为剩余播出持续时间。接收器在RTCP报告中发送接收缓冲器中选定的RTP分组的序列号以及该分组的预定播放时间与当前时间之间的时间差。基于该定时信息，如果接收机以正常速度继续播放并且没有其他RTP分组到达接收机缓冲器，则发送器计算接收器缓冲器将要花费的时间量。可以在发送器处使用该接收器缓冲器充满度级别信息来调整RTP分组的传输速率和/或标称播放速率，以便维持目标接收机缓冲器充满水平。

33. 发明授权

US07542435B2 Buffer level signaling for rate adaptation in multimedia streaming 有权
标题翻译：缓冲区信令用于多媒体流中的速率适配
公开(公告)号：US07542435B2
公开(公告)日：2009-06-02
申请号：US10844062
申请日：2004-05-12
申请人： David Leon , Miska Hannuksela , Emre Baris Aksu
发明人： David Leon , Miska Hannuksela , Emre Baris Aksu
IPC分类号： H04L12/56 , H04J1/16
CPC分类号： H04L47/30 , H04L29/06027 , H04L47/263 , H04L47/34 , H04L65/4069 , H04L65/607 , H04L65/608 , H04L65/80
摘要： In a multimedia streaming network where a client has a receiver buffer to store a plurality of packets received from a server so as to compensate for the difference between data transmission amount by the server and data usage amount by the client, the server should be able to adapt the data transmission rate based on the status of the receiver buffer. For rate adaptation purposes, server reconstructs a list of packets in the receiver buffer based on information provided by the client. The information signaled to the server is indicative of the next packet to be decoded in the client. The information can be the sequence number of the next packet to be decoded, the DON number of the next NAL unit to be decoded, or the sequence number of the packet carrying the next NAL unit to be decoded and the DON indicative of the decoding order of that next NAL unit.
摘要翻译：在多媒体流网络中，客户端具有存储从服务器接收的多个分组的接收缓冲器，以补偿服务器的数据传输量与客户端的数据使用量之间的差异，服务器应能够根据接收缓冲区的状态调整数据传输速率。为了速率调整的目的，服务器根据客户端提供的信息重构接收缓冲区中的数据包列表。信号通知服务器的信息表示客户端要解码的下一个数据包。该信息可以是要解码的下一个分组的序列号，要解码的下一个NAL单元的DON号码，或者是携带下一个要解码的NAL单元的分组的序列号，以及指示解码顺序的DON 那个下一个NAL单位。

34. 发明授权

US07536622B2 Data repair enhancements for multicast/broadcast data distribution 有权
标题翻译：多播/广播数据分发的数据修复增强功能
公开(公告)号：US07536622B2
公开(公告)日：2009-05-19
申请号：US10813343
申请日：2004-03-29
申请人： David Leon , Igor Danilo Diego Curcio
发明人： David Leon , Igor Danilo Diego Curcio
IPC分类号： H04L1/18
CPC分类号： H04L45/28 , H04L1/1887 , H04L12/1868 , H04L45/16 , H04L69/329 , H04L2001/0093
摘要： A method, system, device, and computer code product is disclosed in which a sender transmits data to a plurality of receivers via a point-to-multipoint session. The receiver sends data repair requests to the sender requesting data expected but not received and the sender retransmits the expected but not received data via the point-to-multipoint session. The sender can also schedule point-to-point data repair sessions with individual receivers if the retransmission via the point-to-multipoint session does not correct all errors. The sender can be configured to delay point-to-point repair sessions using a randomization mechanism based on the number of receivers using the point-to-multipoint session.
摘要翻译：公开了一种方法，系统，设备和计算机代码产品，其中发送者经由点到多点会话向多个接收者发送数据。接收机向发送方发送数据修复请求，请求数据预期但未被接收，并且发送方经由点对多点会话重新发送预期但未接收的数据。如果通过点对多点会话的重传不能纠正所有错误，发送方也可以安排与各个接收机的点对点数据修复会话。发送方可以配置为使用基于使用点对多点会话的接收器数量的随机化机制来延迟点对点修复会话。

35. 发明授权

US07346007B2 Bandwidth adaptation 有权
标题翻译：带宽适配
公开(公告)号：US07346007B2
公开(公告)日：2008-03-18
申请号：US10369098
申请日：2003-02-18
申请人： Igor Danilo Diego Curcio , Miikka Lundan , Emre Baris Aksu , Ru-Shang Wang , Viktor Varsa , David Leon
发明人： Igor Danilo Diego Curcio , Miikka Lundan , Emre Baris Aksu , Ru-Shang Wang , Viktor Varsa , David Leon
IPC分类号： H04L12/64
CPC分类号： H04L65/80 , H04L29/06027 , H04L47/10 , H04L47/14 , H04L47/15 , H04L47/263 , H04L47/70 , H04L47/765 , H04L47/767 , H04L47/801 , H04L47/808 , H04L47/824 , H04L65/1083 , H04L65/4038 , H04L65/608 , H04L69/24 , Y02D50/10
摘要： The invention relates to a method for packet switched streaming of media, such as video and/or audio, from a streaming server (111) to a mobile client device (101) over an air-interface. The method comprises noticing a change in a downlink air-interface bandwidth, sending from the mobile client device (101) to the streaming server (111) a request for adapting streaming server transmission bit rate, receiving the request at the streaming server (111) and adapting the streaming server transmission bit rate in accordance with the request. According to the method, the request indicates to the streaming server (111) a current downlink air-interface bandwidth and that said adapting of the streaming server transmission bit rate is performed in accordance with said current downlink air-interface bandwidth.
摘要翻译：本发明涉及一种用于通过空中接口从流服务器（111）到移动客户端设备（101）的媒体（例如视频和/或音频）的分组交换流传输的方法。该方法包括：注意下行链路空中接口带宽的变化，从移动客户端设备（101）向流式传输服务器（111）发送适应流服务器传输比特率的请求，在流服务器（111）处接收请求，以及根据请求调整流服务器传输比特率。根据该方法，该请求向流服务器（111）指示当前下行链路空中接口带宽，并且根据所述当前下行链路空中接口带宽执行所述流服务器传输比特率的所述适配。

36. 发明授权

US07050465B2 Response time measurement for adaptive playout algorithms 有权
标题翻译：自适应播出算法的响应时间测量
公开(公告)号：US07050465B2
公开(公告)日：2006-05-23
申请号：US09903901
申请日：2001-07-12
申请人： David Leon
发明人： David Leon
IPC分类号： H04J3/07 , H04J3/06 , H04L12/56
CPC分类号： H04J3/0632 , H04L43/00 , H04L43/0829 , H04L43/0864 , H04L43/087 , H04N21/6332 , H04N21/6377 , H04N21/654 , H04N21/658
摘要： The present invention discloses a system which comprises two endpoints (1, 2) communicating with each other by means of a packet-switched network. The endpoints (1, 2) use adaptation algorithms for estimating jitter from packet arrival times and for modifying silence period lengths according to the latest estimate. According to the present invention, the endpoints (1, 2) are able to measure a response time (ρ) at a certain point of time and use it as a parameter in the adaptation algorithms.
摘要翻译：本发明公开了一种包括通过分组交换网络彼此通信的两个端点（1,2）的系统。端点（1,2）使用自适应算法来估计来自分组到达时间的抖动并根据最新估计来修改静默周期长度。根据本发明，端点（1,2）能够在某个时间点测量响应时间（rho），并将其用作自适应算法中的参数。

37. 发明授权

US06782047B1 Variable length encoding of compressed data 有权
标题翻译：压缩数据的可变长度编码
公开(公告)号：US06782047B1
公开(公告)日：2004-08-24
申请号：US09536638
申请日：2000-03-28
申请人： Khiem Le , Zhigang Liu , David Leon
发明人： Khiem Le , Zhigang Liu , David Leon
IPC分类号： H04B166
CPC分类号： H03M7/40 , H03M7/30
摘要： The invention is a method and system for compressing a current value into a minimum number of bits for transmission from a compressor to a decompressor. A method in accordance with the invention includes maintaining a series of at least one previous value at the compressor, each previous value having different k least significant bits and which have been transmitted to the decompressor; determining a value of k representing a smallest number of bits which allows successful decompression of the current value at the decompressor using as a reference value any value in the series of at least one previous value; and transmitting the current value from the compressor to the decompressor in compressed form with the k least significant bits of the current value.
摘要翻译：本发明是用于将当前值压缩为从压缩器到解压缩器传输的最小位数的方法和系统。根据本发明的方法包括在压缩器处保持一系列至少一个先前值，每个先前值具有不同的k个最低有效位，并且已经被传送到解压缩器; 确定表示最小比特数的k的值，其允许使用所述至少一个先前值的系列中的任何值作为参考值成功地解压缩解压缩器处的当前值; 以及当前值的k个最低有效位以压缩形式将当前值从压缩器传送到解压缩器。

38. 发明授权

US07237039B2 Method and apparatus for compressing a stream 有权
标题翻译：用于压缩流的方法和装置
公开(公告)号：US07237039B2
公开(公告)日：2007-06-26
申请号：US09966462
申请日：2001-09-28
申请人： David Leon , Khiem Le
发明人： David Leon , Khiem Le
IPC分类号： G06F13/00
CPC分类号： H04N21/6437 , H03M7/30 , H04L69/04 , H04N21/2381
摘要： An apparatus and method, in a data network to compress headers of packets that carry media information having an RTP TS which cannot be linearly extrapolated from the RTP SN.
摘要翻译：一种数据网络中的装置和方法，用于压缩携带具有不能从RTP SN线性外推的RTP TS的媒体信息的分组的报头。

39. 发明授权

US5839662A Water distribution system with variable water-saving diffusers 失效
标题翻译：具有可变节水扩散器的配水系统
公开(公告)号：US5839662A
公开(公告)日：1998-11-24
申请号：US819743
申请日：1997-03-18
申请人： Stephen Leon , Eric Leon , David Leon
发明人： Stephen Leon , Eric Leon , David Leon
IPC分类号： B05B1/18 , E03C1/08 , B05B3/00
CPC分类号： E03C1/08 , B05B1/18 , E03C2001/082 , Y10T137/6969 , Y10T137/9464
摘要： A water-saving diffuser for which a user perceives a relatively higher flow rate than the actual flow rate includes a lower chamber portion housing a distributor disk therein, and an accelerator portion attached to the lower chamber portion, the accelerator portion having a plurality of apertures for producing a multiple-stream output from the water-saving diffuser. A central aperture of the distributor disk can be custom-tailored to produce a specific flow rate for a given water supply pressure. The water-saving diffuser may be used in a water distribution system to provide a predetermined uniform flow rate to all regions of a single- or multi-story building.
摘要翻译：用户感觉到比实际流速相对较高的流量的节水扩散器包括容纳其中的分配盘的下室部分和附接到下室部分的加速器部分，加速器部分具有多个孔用于从节水扩散器产生多流输出。可以定制分配盘的中心孔径，以为给定的供水压力产生特定的流量。节水扩散器可以用在配水系统中以向单层或多层建筑的所有区域提供预定的均匀流量。

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