公开(公告)号：US06516441B1

公开(公告)日：2003-02-04

申请号：US09388240

申请日：1999-09-01

Applicant: Jae-Yoel Kim ,  Chang-Soo Park

Inventor： Jae-Yoel Kim ,  Chang-Soo Park

IPC: H03M1300

CPC classification number: H04L1/0083 ,  H03M13/09 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/35 ,  H03M13/353 ,  H03M13/356 ,  H03M13/6306 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/1867

Abstract: A subframe data transmission device for a mobile communication system. A bit generator generates specific bits having a predetermined value. A bit inserter segments a received data bit stream into at least two subframes, and inserts the generated specific bits at locations where an error probability is higher in the respective subframes. A turbo coder codes the subframe data comprised of the data bit stream and the specific bits. The subframe is equal in size to an ARQ (Automatic Repeat Request) block, and the specific bits are inserted at a rear portion of the subframe. The bit inserter includes a delay for delaying the received data bit stream by the number of the specific bits to be inserted; and a selector for connecting, upon completion of receiving data bits for the subframe, the received data bits to the delay and applying an output of the bit generator to the turbo coder; and applying, when the specific bits are inserted, an output of the delay to the turbo coder.

Abstract translation: 一种用于移动通信系统的子帧数据传输装置。 位产生器产生具有预定值的特定位。 一个插入器将接收的数据比特流分段成至少两个子帧，并且在各子帧中错误概率较高的位置处插入所生成的特定比特。 turbo编码器对由数据比特流和特定比特组成的子帧数据进行编码。 子帧的大小与ARQ（自动重传请求）块大小相等，特定比特插入子帧的后部。 位插入器包括用于将接收到的数据位流延迟待插入的特定位的数量的延迟; 以及选择器，用于在接收到所述子帧的数据位完成后将所接收的数据比特连接到所述延迟并将所述比特生成器的输出应用于所述turbo编码器; 并且当特定比特被插入时，向turbo编码器输出延迟的输出。

公开(公告)号：US20030005385A1

公开(公告)日：2003-01-02

申请号：US09894189

申请日：2001-06-27

Inventor： Ronald D. Stieger

IPC: G06F011/00 ,  H03M013/00 ,  H04B010/08

CPC classification number: H04B10/1121 ,  H03M13/35 ,  H04B10/1127

Abstract: A free space optical communication system with variable error correction includes an optical transmitter having a variable error correction encoder and an optical receiver having variable error correction decoder. The optical transmitter can encode the data to be transmitted with an error correction code having a data rate that varies depending on to the error rate or predicted error rate of the optical signal to optimize throughput of the data while maintaining accuracy.

Abstract translation: 具有可变误差校正的自由空间光通信系统包括具有可变纠错编码器的光发射机和具有可变纠错解码器的光接收机。 光发射机可以利用具有根据光信号的误码率或预测误码率而变化的数据速率的纠错码来编码要发送的数据，以优化数据的吞吐量同时保持精度。

公开(公告)号：US20020174376A1

公开(公告)日：2002-11-21

申请号：US09818428

申请日：2001-03-27

Inventor： Brian K. Classon ,  Joseph M. Nowack ,  John C. Johnson

IPC: G06F011/00

CPC classification number: H04L1/0055 ,  H03M13/35 ,  H03M13/3738 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/0046 ,  H04L1/0057 ,  H04L1/007

Abstract: A weighting device utilizes soft reliability values and class weighting factors to detect errors in digitized information. The soft reliability values can be provided by a decoder that processes the information according to a predetermined coding scheme. Bits representing the encoded information are classified accorded to classes defined by a bit sensitivity analysis. The bit sensitivity analysis can be based on subjective and/or objective criteria. As incoming bits are received by the weighting device, they are classified and class reliability values are computed for each class based on the soft reliability values. The class reliability values are then weighted to produce weighted class reliability values. Error concealment algorithms, coding rate determination, and coding rate requests can be activated based on the weighted class reliability values.

Abstract translation: 加权设备利用软可靠性值和类加权因子来检测数字化信息中的错误。 软可靠性值可以由根据预定编码方案处理信息的解码器提供。 表示编码信息的比特符合由比特灵敏度分析定义的类别。 位敏感性分析可以基于主观和/或客观标准。 当加权装置接收到进入的比特时，它们被分类，并且基于软可靠性值为每个类计算类可靠性值。 然后对等级可靠性值进行加权，以产生加权类可靠性值。 错误隐藏算法，编码率确定和编码率请求可以基于加权类可靠性值来激活。

公开(公告)号：US20020152445A1

公开(公告)日：2002-10-17

申请号：US10072579

申请日：2002-02-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Min-Goo Kim ,  Sang-Hyuck Ha ,  Jae-Sung Jang

IPC: H03M013/03

CPC classification number: H04L1/1845 ,  H03M13/2957 ,  H03M13/35 ,  H03M13/6306 ,  H03M13/6387 ,  H04L1/0066 ,  H04L1/0068 ,  H04L1/0069 ,  H04L1/08 ,  H04L1/1819 ,  H04L1/1887

Abstract: There is provided an apparatus and method of generating two-dimensional QCTCs. The sub-code sets of QCTCs with given code rates are generated and the sub-codes are rearranged in a sub-code set with a different code rate, for use in the next transmission to a sub-code with a predetermined code rate.

Abstract translation: 提供了生成二维QCTC的装置和方法。 产生具有给定码率的QCTC的子码集，并且将子码重新排列成具有不同码率的子码组，以用于以预定码率进行下一次发送到子码。

公开(公告)号：US20020146074A1

公开(公告)日：2002-10-10

申请号：US09785191

申请日：2001-02-20

Applicant: Cute Ltd.

Inventor： Meir Ariel ,  Jacob Goldberger ,  Ofer Amrani

IPC: H04N007/12

CPC classification number: H04L1/0068 ,  H03M13/27 ,  H03M13/29 ,  H03M13/35 ,  H03M13/4169 ,  H04L1/0013 ,  H04L1/007 ,  H04L1/0071 ,  H04L1/1621

Abstract: A system for streaming data and corresponding protective parity bits in packets over a channel, the system comprising a recursive systematic convolutional encoder at a sending end for producing said corresponding protective parity bits and a recursive systematic convolutional decoder at a receiving end for reconstructing data lost in the channel, and a data interleaver at a sending end for interleaving data for said recursive systematic convolutional encoder according to a uniformity criterion to form parity bits therefrom, and a parity bit distributor operable to distribute said parity bits over said packets differentially from corresponding data. The system is useful in enabling real time multimedia data distribution over cellular networks.

Abstract translation: 一种用于通过信道在数据包中流式传输数据和对应的保护性奇偶校验位的系统，该系统包括在发送端用于产生所述相应保护奇偶校验位的递归系统卷积编码器，以及在接收端处的递归系统卷积解码器，用于重建丢失的数据 信道和数据交织器，用于根据均匀性标准对所述递归系统卷积编码器的数据进行交织以从其形成奇偶校验位;以及奇偶校验位分配器，用于将所述奇偶校验位与对应数据差分地分布在所述分组上。 该系统在通过蜂窝网络实现实时多媒体数据分发方面非常有用。

公开(公告)号：US20020140991A1

公开(公告)日：2002-10-03

申请号：US10046639

申请日：2001-10-26

Applicant: Catena Networks, Inc.

Inventor： Bin Li ,  Alberto Ginesi ,  Song Zhang

IPC: H04N001/41

CPC classification number: H04L1/0057 ,  H03M13/03 ,  H03M13/35 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/006

Abstract: Apparatus and method for generating parameters used in coding data in a data transmission system. The method determines a number of possible coding parameters to satisfy a target coding gain and selects the best set of parameters that balance the code word length and the error rate. In this manner, a minimum coding gain may be used, which minimizes cross-talk on a transmission link.

Abstract translation: 用于产生用于数据传输系统中的数据编码的参数的装置和方法。 该方法确定多个可能的编码参数以满足目标编码增益并选择平衡码字长度和错误率的最佳参数集合。 以这种方式，可以使用最小的编码增益，其最小化传输链路上的串扰。

公开(公告)号：US06356545B1

公开(公告)日：2002-03-12

申请号：US08989361

申请日：1997-12-12

Applicant: Mike Vargo ,  Jerry Chang

Inventor： Mike Vargo ,  Jerry Chang

IPC: H04J322

CPC classification number: H04L1/0009 ,  G10L19/167 ,  H03M13/03 ,  H03M13/35 ,  H04L1/0006 ,  H04L1/0014 ,  H04L65/103 ,  H04L65/605 ,  H04L65/80 ,  H04M3/12 ,  H04M7/1275

Abstract: The invention is concerned with improvements in full duplex Internet telephone systems with a system architecture having low latency and permitting voice communication with telephone to telephone or PC to telephone connections. The architecture permits dynamic packet-to-packet change in codec to adjust for Internet conditions. The voice port creates self-describing packet conditions so that the higher level software of the system is independent of codec selection. In addition to adjusting the codec, the voice port has the capability of dynamically and concurrently selecting other factors such as the level of error correction redundancy, the packet size and packet bundling on a packet-to-packet basis. The invention further includes a technique to eliminate dead air spaces in the voice data transmission stream by speeding up or slowing down the data rate in the buffer while maintaining a constant pitch of speech.

Abstract translation: 本发明涉及全双工互联网电话系统的改进，具有低延迟的系统架构，并允许与电话到电话或PC到电话连接的语音通信。 该架构允许编解码器中的动态数据包到数据包更改以适应Internet条件。 语音端口创建自描述分组条件，使得系统的较高级别的软件与编解码器选择无关。 除了调整编解码器之外，语音端口还具有动态并同时选择其他因素的能力，如纠错冗余级别，数据包大小和数据包到包的分组捆绑。 本发明还包括一种通过加速或减慢缓冲器中的数据速率来消除话音数据传输流中的死空间的技术，同时保持语音的恒定音调。

公开(公告)号：US20010041055A1

公开(公告)日：2001-11-15

申请号：US09541304

申请日：2000-04-03

Inventor： Makoto Kawamura ,  Yasushi Fujinami

IPC: H04N005/76 ,  H04N005/781

CPC classification number: H04N9/8042 ,  G11B20/00007 ,  G11B20/00086 ,  G11B20/00731 ,  G11B20/10 ,  G11B20/10009 ,  G11B20/1217 ,  G11B20/1254 ,  G11B20/1833 ,  G11B27/034 ,  G11B27/105 ,  G11B27/3063 ,  G11B27/329 ,  G11B2020/1222 ,  G11B2020/1232 ,  G11B2020/1271 ,  G11B2220/211 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/2562 ,  H03M13/35 ,  H04N5/85 ,  H04N5/913 ,  H04N9/8066 ,  H04N9/8205 ,  H04N9/8233 ,  H04N2005/91321

Abstract: The present invention provides remarkably improved availability in a data recording method and apparatus, a data recording medium, and a data reproducing method and apparatus. By recording additional information for data reproduction in each sector on a data reproducing medium as a subcode separately from data when the data is recorded in the unit of sector, reproduction of data can be controlled using the subcode, thus making it possible to remarkably improve the availability of the data recording medium.

Abstract translation: 本发明在数据记录方法和装置，数据记录介质和数据再现方法和装置中提供了显着改进的可用性。 通过在数据以扇区为单位记录的情况下，在数据再现介质上的每个扇区中的数据再现的附加信息作为与数据分离的子代码，可以使用子代码来控制数据的再现，从而可以显着地改善 数据记录介质的可用性。

公开(公告)号：US06314535B1

公开(公告)日：2001-11-06

申请号：US09314578

申请日：1999-05-18

Applicant: Russell A. Morris ,  Darrell W. Barabash

Inventor： Russell A. Morris ,  Darrell W. Barabash

IPC: H04J316

CPC classification number: H04L1/0009 ,  H03M13/03 ,  H03M13/35 ,  H04L1/0015 ,  H04L1/20

Abstract: A forward error correction (FEC) method is provided including an FEC dynamic central station and a plurality of FEC dynamic remote stations that transmit bearer data and corresponding error correction data therebetween during a plurality of time frames. The error rate of the communication channel is measured and the amount of error correction data transmitted is accordingly and dynamically adjusted, so that the minimum amount of overhead required to effectively transmit the error correction data is used.

Abstract translation: 提供了前向纠错（FEC）方法，其包括FEC动态中心站和多个FEC动态远程站，其在多个时间帧期间在其间传送承载数据和相应的纠错数据。 测量通信信道的误码率，并相应地动态地调整发送的纠错数据量，从而使用有效发送纠错数据所需的最小开销量。

公开(公告)号：US06311305B1

公开(公告)日：2001-10-30

申请号：US09032905

申请日：1998-03-02

Applicant: Baruch Sollish ,  Dennis Howe

Inventor： Baruch Sollish ,  Dennis Howe

IPC: H03M1300

CPC classification number: G11B20/00579 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/00927 ,  G11B20/1426 ,  G11B20/18 ,  H03M13/00 ,  H03M13/1515 ,  H03M13/29 ,  H03M13/2909 ,  H03M13/2924 ,  H03M13/293 ,  H03M13/35

Abstract: A method and system for overriding error correction capabilities of digital optical media is provided. The overriding of the error correction codes (ECC) is accomplished by causing a non-correctable pattern of erroneous symbols to occur in the ECC codeword. Specific redundancy symbols are replaced with invalid symbols. The non-correctable error pattern is recognized by the ECC decoder as being non-correctable and the ECC decoder does not attempt to change the values of any symbols of an ECC codeword that is contaminated by the detectable non-correctable error pattern.

Abstract translation: 提供了一种用于覆盖数字光学介质的纠错能力的方法和系统。 错误校正码（ECC）的覆盖是通过使ECC码字中出现错误符号的不可校正模式来实现的。 特定冗余符号被替换为无效符号。 不可修正的错误模式由ECC解码器识别为不可校正，并且ECC解码器不尝试改变被可检测的不可校正错误模式污染的ECC码字的任何符号的值。