公开(公告)号：US20120133531A1

公开(公告)日：2012-05-31

申请号：US13387972

申请日：2010-07-26

Applicant: Sébastien Cliquennois

Inventor： Sébastien Cliquennois

IPC: H03M7/00

CPC classification number: H03M7/3002

Abstract: The invention relates to the digital signal requantization, at a given quantization step size, of a first word received in a first period of time and encoded in a first number of bits, into a second word, with a quantization error equal to a third number. A sequence of third words is outputted, equal to the second word, with the sequence subdivided into a first group comprising a number of third words that is equal to the third number and a second group of third words. Before outputting them, the correction means adds a least significant bit to the third words of the first group and adds or subtracts least significant bits to or from the third words of the second group, such that the sum of the least significant bits added to and subtracted from the second group is zero.

Abstract translation: 本发明涉及以给定的量化步长的数字信号重新量化在第一时间段内被接收并以第一数量的比特编码的第一个字数字化为第二个字，其量化误差等于第三个数字 。 输出等于第二字的第三字序列，其中序列被细分成包括等于第三数目的第三个字的数量的第一组和第二组的第三个字。 在输出它们之前，校正装置将最低有效位添加到第一组的第三个字，并将最低有效位加到或从第二组的第三个字中减去最小有效位，使得加到最小有效位和 从第二组中减去零。

公开(公告)号：US20110116515A1

公开(公告)日：2011-05-19

申请号：US12619661

申请日：2009-11-16

Applicant: Wim J. VAN HOUTUM ,  Frans M.J. WILLEMS

Inventor： Wim J. VAN HOUTUM ,  Frans M.J. WILLEMS

IPC: H04J13/00 ,  H04L27/28

CPC classification number: H04L27/2649 ,  H03M7/3002 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/31 ,  H03M13/3994 ,  H03M13/6325 ,  H04L1/0047 ,  H04L1/005 ,  H04L1/0054 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/03203 ,  H04L2001/0093 ,  H04L2025/03414

Abstract: A system and method for demodulating and decoding a differentially encoded modulation code from a coded orthogonal frequency division multiplexing (COFDM) transmitter involves partitioning the differentially encoded modulation code into two-dimensional code blocks and demodulating and decoding the two-dimensional code blocks to produce demodulated and decoded information.

Abstract translation: 用于从编码的正交频分复用（COFDM）发射机解调和解码差分编码的调制码的系统和方法包括将差分编码的调制码划分成二维码块，并解调和解码二维码块以产生解调的 和解码信息。

公开(公告)号：US20060098731A1

公开(公告)日：2006-05-11

申请号：US11265922

申请日：2005-11-03

Applicant: Cheon-ho Bae

Inventor： Cheon-ho Bae

IPC: H03M7/00 ,  H04B1/66

CPC classification number: H03M7/3002 ,  H03M5/04

Abstract: Provided are a digital video data transmission system and digital video data transmission method. The digital video data transmission system includes a transmitting unit transmitting valid first data in input digital video data having spatial locality to a bus as output encoding information without bit-inversion coding the first data, bit-inversion coding previous data of output encoding data corresponding to the input digital video data based on differential values of adjacent digital video data, and transmitting the bit-inversion coded value to the bus as the output encoding information; and a receiving unit not decoding output encoding information transmitted in parallel through the bus, i.e., the first data, but decoding output encoding information transmitted in parallel through the bus based on the differential values. The output encoding information includes the output encoding data and coding enable information that indicates whether to bit-inversion encode previous data of the output encoding data. The digital video data transmission system and digital video data transmission method can reduce the number of transitions of bits included in the digital video data transmitted through the bus, thereby reducing power consumption and electromagnetic interference.

Abstract translation: 提供了一种数字视频数据传输系统和数字视频数据传输方法。 数字视频数据传输系统包括发送单元，其将具有空间位置的输入数字视频数据中的有效第一数据发送到总线作为输出编码信息，而不对第一数据进行位反转编码，对与之对应的输出编码数据的先前数据进行位反转编码 基于相邻数字视频数据的差分值的输入数字视频数据，并将比特反转编码值发送到总线作为输出编码信息; 以及接收单元，其不解码通过总线并行发送的输出编码信息，即第一数据，但是解码通过总线并行发送的输出编码信息，基于差分值。 输出编码信息包括指示是否对输出编码数据的先前数据进行位反转编码的输出编码数据和编码使能信息。 数字视频数据传输系统和数字视频数据传输方法可以减少通过总线传输的数字视频数据中包含的比特的转换次数，从而降低功耗和电磁干扰。

公开(公告)号：US20030074193A1

公开(公告)日：2003-04-17

申请号：US10304122

申请日：2002-11-25

Applicant: Koninklijke Philips Electronics N.V.

Inventor： Renatus J. Van Der Vleuten ,  Alphons A.M.L. Bruekers ,  Arnoldus W.J. Oomen

IPC: G10L019/10

CPC classification number: G11B20/10 ,  G11B20/00007 ,  G11B20/10037 ,  G11B20/10527 ,  G11B2020/00065 ,  H03M7/3002 ,  H05K1/0266 ,  H05K3/381 ,  H05K2201/09936 ,  H05K2203/161

Abstract: A data processing apparatus is disclosed for data processing an audio signal. The data processing apparatus comprises an input terminal (1) for receiving the audio signal, a 1-bit A/D converter (4) for A/D converting the audio signal so as to obtain a bitstream signal, a prediction unit (10) for carrying out a prediction step on the bitstream signal so as to obtain a predicted bitstream signal, a signal combination unit (42) for combining the bitstream signal and the predicted bitstream signal so as to obtain a residue bitstream signal, and an output terminal (14) for supplying the residual bitstream signal (FIG. 1). Further, a recording apparatus (FIG. 4) and a transmitter apparatus (FIG. 5) comprising the data processing apparatus are disclosed. Other data processing apparatuses can be found in the FIGS. 18, 19 and 20. In addition, another data processing apparatus (FIG. 7) for converting the residue bitstream signal into an audio signal is disclosed, as well as a reproducing apparatus (FIG. 9) and a receiver apparatus (FIG. 10) comprising the other data processing apparatus.

Abstract translation: 公开了一种用于数据处理音频信号的数据处理装置。 数据处理装置包括用于接收音频信号的输入端（1），用于对音频信号进行A / D转换以获得位流信号的1位A / D转换器（4），预测单元（10） 对所述比特流信号进行预测步骤以获得预测比特流信号;组合所述比特流信号和所述预测比特流信号以获得残留比特流信号的信号组合单元（42），以及输出终端（ 14），用于提供残留比特流信号（图1）。 此外，公开了包括数据处理装置的记录装置（图4）和发送装置（图5）。 其他数据处理装置可以在图1和图2中找到。 此外，公开了用于将残留比特流信号转换成音频信号的另一数据处理装置（图7），以及再现装置（图9）和接收装置（图10 ）包括其他数据处理装置。

公开(公告)号：US20010033621A1

公开(公告)日：2001-10-25

申请号：US09778589

申请日：2001-02-07

Inventor： Ali S. Khayrallah

IPC: H03M003/00 ,  H04B014/06 ,  H03D003/22 ,  H04L027/22

CPC classification number: H03M7/3002 ,  H03M13/35 ,  H04B14/066 ,  H04L27/22 ,  H04L2001/0098

Abstract: A method of coding information for transmission over a communication channel involves differentially coding selected bits of an input sequence with respect to bits of a previous input symbol to generate a transmit sequence comprising a plurality of transmit symbols. The differential coding method can be used in combination with unequal error protection and interleaving to protect bits during transmission.

Abstract translation: 编码用于通过通信信道进行传输的信息的方法包括相对于先前输入符号的比特对输入序列的选定比特进行差分编码，以生成包括多个发送符号的发送序列。 差分编码方法可以与不相等的误差保护和交织结合使用以在传输期间保护位。

公开(公告)号：US07986250B2

公开(公告)日：2011-07-26

申请号：US12579899

申请日：2009-10-15

Applicant: Ian Galton ,  Ashok Swaminathan

Inventor： Ian Galton ,  Ashok Swaminathan

IPC: H03M7/00 ,  H03M3/00

CPC classification number: H03M7/3002

Abstract: A successive requantizer, which serves as a replacement for a ΔΣ modulator in a fractional-N PLL or a DAC, and avoids spurious tone problems, thereby circumventing the tradeoffs that result from reliance on the common approach of making highly linear analog circuitry to avoid spurious tones. A successive requantizer fractional-N PLL of the invention has the potential to reduce power consumption and the cost of commercial communication devices. The successive requantizer performs digital quantization one bit at a time in such a way that the quantization noise can he engineered to have desirable properties such as non-linearity robustness. The successive requantizer is applicable to most high-performance digital communication systems, such as cellular telephone handsets and wireless local and metropolitan area network transceivers.

Abstract translation: 一个连续的重组者，用来替代＆Dgr＆ 调制器在分数N PLL或DAC中，并避免伪噪声问题，从而避免了依赖于制作高度线性模拟电路以避免伪噪声的常见方法而产生的折衷。 本发明的连续再量化器分数N PLL具有降低功耗和商业通信设备的成本的潜力。 连续重新量化器一次执行一位数字量化，使得量化噪声可以被设计成具有期望的性质，例如非线性鲁棒性。 连续的重新量化器适用于大多数高性能数字通信系统，如蜂窝电话手机和无线本地和城域网收发器。

公开(公告)号：US07324598B2

公开(公告)日：2008-01-29

申请号：US10195783

申请日：2002-07-15

Applicant: Yoni Perets ,  Kobby Pick

Inventor： Yoni Perets ,  Kobby Pick

IPC: H04B14/04

CPC classification number: H03M7/3002

Abstract: An apparatus includes a quantizer to generate a quantized signal from an input signal and a function unit may be included to generate an output signal by applying a predetermined function to the quantized signal. The apparatus further may include a correction unit to compensate for distortion in the output signal.

Abstract translation: 一种装置包括用于从输入信号生成量化信号的量化器，并且可以包括功能单元以通过对量化信号应用预定函数来产生输出信号。 该装置还可以包括校正单元，以补偿输出信号中的失真。

公开(公告)号：US20030189505A1

公开(公告)日：2003-10-09

申请号：US10341428

申请日：2003-01-14

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Kouji Okamoto

IPC: H03M001/66

CPC classification number: H03M7/3002 ,  G11B20/10037 ,  H03L7/087 ,  H03L7/093 ,  H03M1/68 ,  H03M3/50

Abstract: A D/A converter in an analog-digital mixed loop is realized with a reduced circuit area without sacrificing the resolution. A bit modulation section modulates an m-bit digital control signal, which is output from a digital section, into an n-bit (n

Abstract translation: 模数/数字混合回路中的D / A转换器实现了电路面积的减小而不牺牲分辨率。 位调制部分将从数字部分输出的m位数字控制信号调制成其时间平均精度基本上为m位的n位（n

公开(公告)号：US06535845B2

公开(公告)日：2003-03-18

申请号：US09726764

申请日：2000-11-30

Applicant: Renatus J. Van Der Vleuten ,  Alphons A. M. L. Bruekers ,  Arnoldus W. J. Oomen

Inventor： Renatus J. Van Der Vleuten ,  Alphons A. M. L. Bruekers ,  Arnoldus W. J. Oomen

IPC: G10L2104

CPC classification number: G11B20/10 ,  G11B20/00007 ,  G11B20/10037 ,  G11B20/10527 ,  G11B2020/00065 ,  H03M7/3002 ,  H05K1/0266 ,  H05K3/381 ,  H05K2201/09936 ,  H05K2203/161

Abstract: A data processing apparatus includes an input terminal for receiving an audio signal, a 1-bit A/D converter for A/D converting the audio signal into a 1-bit bitstream signal, and a prediction unit for carrying out a prediction step on the bitstream signal so as to obtain a predicted bitstream signal. The data processing apparatus further includes a signal combination unit for combining the bitstream signal and the predicted bitstream signal so as to obtain a residue bitstream signal. A recording apparatus or a transmitter apparatus can use the data processing apparatus. The residue bitstream signal is data compressed by lossless encoding and then error encoded and channel encoded prior to transmission through a media.

Abstract translation: 数据处理装置包括用于接收音频信号的输入端子，用于将音频信号A / D转换为1比特位置信号的1比特A / D转换器，以及用于执行预测步骤的预测单元 以获得预测比特流信号。 数据处理装置还包括用于组合比特流信号和预测比特流信号的信号组合单元，以获得残留比特流信号。 记录装置或发送装置可以使用数据处理装置。 残留比特流信号是通过无损编码压缩的数据，然后在通过媒体传输之前进行错误编码和信道编码。

公开(公告)号：US06513055B1

公开(公告)日：2003-01-28

申请号：US09430762

申请日：1999-10-29

Applicant: Canice Patrick Boran

Inventor： Canice Patrick Boran

IPC: G06F750

CPC classification number: H03M7/3002

Abstract: Reduction of data width in transmitted multi-bit data words in an automotive system is accomplished by truncating the data at its least significant bits and accumulating the truncated bits until, over successive truncated digital words, the sum of the accumulated bits exceeds a threshold equal to the least significant bit of the truncated word. At this time, the truncated word is incremented by one least significant bit and the accumulated value of truncated bits is decremented by an equal amount. In this way, the error does not accumulate in applications which integrate the resulting truncated words.

Abstract translation: 在汽车系统中传输的多位数据字中的数据宽度的减少是通过以其最低有效位截断数据并累加截断比特来实现的，直到在连续的截断的数字字上累积比特的和超过等于 截断词的最低有效位。 此时，截断的字被递增一个最低有效位，并且截断位的累加值递减等量。 以这种方式，错误不会积累在集成所生成的截断字的应用程序中。