专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07474691B2 Sub-symbol parallel interference cancellation 有权
标题翻译：子符号并行干扰消除
公开(公告)号：US07474691B2
公开(公告)日：2009-01-06
申请号：US11362111
申请日：2006-02-27
申请人： James P. Dunyak , John D. Fite , Jerome M. Shapiro
发明人： James P. Dunyak , John D. Fite , Jerome M. Shapiro
IPC分类号： H04B1/00
CPC分类号： H04B1/71075
摘要： Reduction of multiple access interference, in one example for asynchronous CDMA systems using long codes. In one aspect, parallel interference cancellation (PIC) implements a decoupled estimate, preferably non-linear and applied at chip intervals. According to another aspect, interference is cancelled using a technique that estimates bits for a symbol by interpolating signature waveforms for users to a common sampling lattice of the received data. According to another aspect, multi-stage, hybrid multi-stage, and reconfigurable recursive multi-stage multi-user detection architectures and corresponding processes are provided.
摘要翻译：在使用长码的异步CDMA系统的一个示例中减少多址接入干扰。在一个方面，并行干扰消除（PIC）实现去耦估计，优选非线性并且以码片间隔应用。根据另一方面，使用通过将用户的签名波形内插到接收数据的公共采样点的技术来估计干扰被消除。根据另一方面，提供了多级，混合多级和可重配置的递归多级多用户检测架构和相应的过程。

2. 发明授权

US07099378B2 Sub-symbol parallel interference cancellation 有权
公开(公告)号：US07099378B2
公开(公告)日：2006-08-29
申请号：US10765202
申请日：2004-01-28
申请人： James P. Dunyak , John D. Fite , Jerome M. Shapiro
发明人： James P. Dunyak , John D. Fite , Jerome M. Shapiro
IPC分类号： H04B1/69 , H04B1/707 , H04B1/713
CPC分类号： H04B1/71075
摘要： Reduction of multiple access interference, in one example for asynchronous CDMA systems using long codes. In one aspect, parallel interference cancellation (PIC) implements a decoupled estimate, preferably non-linear and applied at chip intervals. According to another aspect, interference is cancelled using a technique that estimates bits for a symbol by interpolating signature waveforms for users to a common sampling lattice of the received data. According to another aspect, multi-stage, hybrid multi-stage, and reconfigurable recursive multi-stage multi-user detection architectures and corresponding processes are provided.

3. 发明授权

US5412741A Apparatus and method for compressing information 失效
标题翻译：用于压缩信息的装置和方法
公开(公告)号：US5412741A
公开(公告)日：1995-05-02
申请号：US7694
申请日：1993-01-22
申请人： Jerome M. Shapiro
发明人： Jerome M. Shapiro
IPC分类号： G06T9/00 , G10L19/00 , H03M7/30 , H03M7/40 , H04N7/26 , G06K9/36 , H04N7/12
CPC分类号： H04N19/64 , H03M7/30 , H04N19/647
摘要： An apparatus and method for signal, image, or video compression that achieves high compression efficiency in a computationally efficient manner and corresponding decoder apparatus and methods are disclosed. This technique uses zerotree coding of wavelet coefficients in a much more efficient manner than previous techniques. The key is the dynamic generation of the list of coefficient indices to be scanned, whereby the dynamically generated list only contains coefficient indices for which a symbol must be encoded. This is a dramatic improvement over the prior art in which a static list of coefficient indices is used and each coefficient must be individually checked to see whether a) a symbol must be encoded, or b) it is completely predictable. Additionally, using dynamic list generation, the greater the compression of the signal, the less time it takes to perform the compression. Thus, using dynamic list generation, the computational burden is proportional to the size of the output compressed bit stream instead of being proportional to the size of the input signal or image.
摘要翻译：公开了一种以计算有效的方式实现高压缩效率的信号，图像或视频压缩的装置和方法，以及对应的解码器装置和方法。这种技术以比以前的技术更有效的方式使用小波系数的零树编码。关键是要扫描的系数索引列表的动态生成，由此动态生成的列表仅包含必须对其编码符号的系数索引。这是相对于使用系数索引的静态列表并且必须单独检查每个系数以查看是否必须对符号进行编码的现有技术的显着改进，或者b）它是完全可预测的。另外，使用动态列表生成，信号的压缩越大，执行压缩所需的时间越短。因此，使用动态列表生成，计算负担与输出压缩比特流的大小成比例，而不是与输入信号或图像的大小成比例。

4. 发明授权

US5321776A Data compression system including successive approximation quantizer 失效
标题翻译：数据压缩系统包括逐次逼近量化器
公开(公告)号：US5321776A
公开(公告)日：1994-06-14
申请号：US842042
申请日：1992-02-26
申请人： Jerome M. Shapiro
发明人： Jerome M. Shapiro
IPC分类号： G06T9/00 , H04N7/26 , G06K9/36 , G06K9/68 , H04N7/12
CPC分类号： H04N19/63 , H04N19/647 , H04N19/96 , H04N19/115 , H04N19/146
摘要： A data processing system augments compression of non-zero values of significant coefficients by coding entries of a significance map independently of coding the values of significant non-zero coefficients. A dedicated symbol represents a zerotree structure encompassing a related association of insignificant coefficients within the tree structure. The zerotree symbol represents that a coefficient is a root of a zerotree if, at a threshold T, the coefficient and all of its descendants that have been found to be insignificant at larger thresholds have magnitudes less than threshold T. The zerotree structure is disclosed in the context of a pyramid-type image subband processor together with successive refinement quantization and entropy coding to facilitate data compression.
摘要翻译：数据处理系统通过对重要映射的条目进行编码来增强对有效系数的非零值的压缩，而与编码重要非零系数的值无关。专用符号表示包含树结构内无关系数的相关关联的零树结构。零树符号表示系数是零树的根，如果在阈值T处，在较大阈值处已经被发现不重要的系数及其所有后代具有小于阈值T的量值。零树结构公开在金字塔型图像子带处理器的上下文以及连续的细化量化和熵编码以便于数据压缩。

5. 发明授权

US08218604B2 Interference canceling CDMA mobile station receiver 有权
标题翻译：干扰消除CDMA移动台接收机
公开(公告)号：US08218604B2
公开(公告)日：2012-07-10
申请号：US12588670
申请日：2009-10-23
申请人： Jerome M. Shapiro , James P. Dunyak
发明人： Jerome M. Shapiro , James P. Dunyak
IPC分类号： H04B1/00
CPC分类号： H04B1/71075
摘要： A receiver that provides interference cancellation in conjunction with RAKE processing. Signal parameters corresponding to each of a plurality of fingers corresponding to RAKE processing are maintained. Synthesized pilot signals are estimated using the signal parameters by interpolating waveforms for respective ones of the plurality of synthesized pilot signals to a common sampling lattice of the received set of data, and are then cancelled out. According to another aspect, a receiver ensures completion of a time-critical process such as signal demodulation and adaptively applies a non-time-critical process such as interference cancellation to the extent that computational resources become available subject to ensuring the completion of the time-critical process.
摘要翻译：与RAKE处理结合提供干扰消除的接收机。维持与RAKE处理对应的多个手指中的每一个对应的信号参数。使用信号参数通过将多个合成导频信号中的各个合成导频信号的波形内插到所接收的数据集合的公共采样点，来估计合成的导频信号，然后被抵消。根据另一方面，一种接收器确保完成诸如信号解调的时间关键过程，并且自适应地应用诸如干扰消除之类的非时间关键过程，以至于在确保完成时间 - 关键过程。

6. 发明授权

US07801225B2 Bit allocation among carriers in multicarrier communications 有权
标题翻译：多载波通信中运营商之间的比特分配
公开(公告)号：US07801225B2
公开(公告)日：2010-09-21
申请号：US10957612
申请日：2004-10-05
申请人： Jerome M. Shapiro , Stuart D. Sandberg , Marcos C. Tzannes
发明人： Jerome M. Shapiro , Stuart D. Sandberg , Marcos C. Tzannes
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L27/2608 , H04L1/004
摘要： A technique is provided that may be employed in multicarrier communications to improve the efficiency of error correction using symbol-oriented error correction methodologies, by reducing the number of error correction code symbols (102, 104 . . . ) that are received in error that result from a single channel error. More specifically, in this technique, bits from the symbols are allocated among the channels in such a way as to minimize the number of respective channels that are allocated bits belonging to more that one respective symbol during a respective transmission period.
摘要翻译：提供了可以在多载波通信中使用的技术，通过减少错误接收到的错误校正码符号（102,104 ...）的数量来提高使用符号的纠错方法的纠错效率，结果从单通道错误。更具体地说，在这种技术中，在各个信道之间分配来自这些符号的比特，以便在相应的传输周期期间最小化属于更多一个相应符号的分配比特的各个信道的数量。

7. 发明申请

US20100040035A1 Interference canceling CDMA mobile station receiver 有权
标题翻译：干扰消除CDMA移动台接收机
公开(公告)号：US20100040035A1
公开(公告)日：2010-02-18
申请号：US12588670
申请日：2009-10-23
申请人： Jerome M. Shapiro , James P. Dunyak
发明人： Jerome M. Shapiro , James P. Dunyak
IPC分类号： H03D1/04 , H04B7/216
CPC分类号： H04B1/71075
摘要： A receiver that provides interference cancellation in conjunction with RAKE processing. Signal parameters corresponding to each of a plurality of fingers corresponding to RAKE processing are maintained. Synthesized pilot signals are estimated using the signal parameters by interpolating waveforms for respective ones of the plurality of synthesized pilot signals to a common sampling lattice of the received set of data, and are then cancelled out. According to another aspect, a receiver ensures completion of a time-critical process such as signal demodulation and adaptively applies a non-time-critical process such as interference cancellation to the extent that computational resources become available subject to ensuring the completion of the time-critical process.
摘要翻译：与RAKE处理结合提供干扰消除的接收机。维持与RAKE处理对应的多个手指中的每一个对应的信号参数。使用信号参数通过将多个合成导频信号中的各个合成导频信号的波形内插到所接收的数据集合的公共采样点，来估计合成的导频信号，然后被抵消。根据另一方面，一种接收器确保完成诸如信号解调的时间关键过程，并且自适应地应用诸如干扰消除之类的非时间关键过程，以至于在确保完成时间 - 关键过程。

8. 发明授权

US07627021B2 Interference canceling CDMA mobile station receiver 有权
标题翻译：干扰消除CDMA移动台接收机
公开(公告)号：US07627021B2
公开(公告)日：2009-12-01
申请号：US11011757
申请日：2004-12-15
申请人： Jerome M. Shapiro , James P. Dunyak
发明人： Jerome M. Shapiro , James P. Dunyak
IPC分类号： H04B1/00
CPC分类号： H04B1/71075
摘要： A receiver that provides interference cancellation in conjunction with RAKE processing. Signal parameters corresponding to each of a plurality of fingers corresponding to RAKE processing are maintained. Synthesized pilot signals are estimated using the signal parameters by interpolating waveforms for respective ones of the plurality of synthesized pilot signals to a common sampling lattice of the received set of data, and are then cancelled out. According to another aspect, a receiver ensures completion of a time-critical process such as signal demodulation and adaptively applies a non-time-critical process such as interference cancellation to the extent that computational resources become available subject to ensuring the completion of the time-critical process.
摘要翻译：与RAKE处理结合提供干扰消除的接收机。维持与RAKE处理对应的多个手指中的每一个对应的信号参数。使用信号参数通过将多个合成导频信号中的各个合成导频信号的波形内插到所接收的数据集合的公共采样点，来估计合成的导频信号，然后被抵消。根据另一方面，一种接收器确保完成诸如信号解调的时间关键过程，并且自适应地应用诸如干扰消除之类的非时间关键过程，以至于在确保完成时间 - 关键过程。

9. 发明授权

US07505510B2 System and method for interference cancellation with multi-stage multi-user detection 有权
标题翻译：用于多级多用户检测的干扰消除系统和方法
公开(公告)号：US07505510B2
公开(公告)日：2009-03-17
申请号：US11362109
申请日：2006-02-27
申请人： James P. Dunyak , John D. Fite , Jerome M. Shapiro
发明人： James P. Dunyak , John D. Fite , Jerome M. Shapiro
IPC分类号： H04B1/00
CPC分类号： H04B1/71075
摘要： Reduction of multiple access interference, in one example for asynchronous CDMA systems using long codes. In one aspect, parallel interference cancellation (PIC) implements a decoupled estimate, preferably non-linear and applied at chip intervals. According to another aspect, interference is cancelled using a technique that estimates bits for a symbol by interpolating signature waveforms for users to a common sampling lattice of the received data. According to another aspect, multi-stage, hybrid multi-stage, and reconfigurable recursive multi-stage multi-user detection architectures and corresponding processes are provided.
摘要翻译：在使用长码的异步CDMA系统的一个示例中减少多址接入干扰。在一个方面，并行干扰消除（PIC）实现去耦估计，优选非线性并且以码片间隔应用。根据另一方面，使用通过将用户的签名波形内插到接收数据的公共采样点的技术来估计干扰被消除。根据另一方面，提供了多级，混合多级和可重配置的递归多级多用户检测架构和相应的过程。

10. 发明授权

US08218664B2 Bit allocation among carriers in multicarrier communications 有权
标题翻译：多载波通信中运营商之间的比特分配
公开(公告)号：US08218664B2
公开(公告)日：2012-07-10
申请号：US12760766
申请日：2010-04-15
申请人： Jerome M. Shapiro , Stuart D. Sandberg , Marcos C. Tzannes
发明人： Jerome M. Shapiro , Stuart D. Sandberg , Marcos C. Tzannes
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L27/2608 , H04L1/004
摘要： A technique is provided that may be employed in multicarrier communications to improve the efficiency of error correction using symbol-oriented error correction methodologies, by reducing the number of error correction code symbols (102, 104 . . . ) that are received in error that result from a single channel error. More specifically, in this technique, bits from the symbols are allocated among the channels in such a way as to minimize the number of respective channels that are allocated bits belonging to more that one respective symbol during a respective transmission period.
摘要翻译：提供了可以在多载波通信中使用的技术，通过减少错误接收到的错误校正码符号（102,104 ...）的数量来提高使用符号的纠错方法的纠错效率，结果从单通道错误。更具体地说，在这种技术中，在各个信道之间分配来自这些符号的比特，以便在相应的传输周期期间最小化属于更多一个相应符号的分配比特的各个信道的数量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式