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1. 发明授权

US5687184A Method and circuit arrangement for speech signal transmission 失效
标题翻译：用于语音信号传输的方法和电路装置
公开(公告)号：US5687184A
公开(公告)日：1997-11-11
申请号：US323205
申请日：1994-10-14
申请人： Dietmar Lorenz , Karl Hellwig
发明人： Dietmar Lorenz , Karl Hellwig
IPC分类号： G10L13/00 , H03M13/00 , H03M13/39 , H04B14/04 , H04L1/00 , G06F11/10 , H03M13/12
CPC分类号： H04L1/0057 , H03M13/00 , H03M13/39
摘要： When speech data are transmitted via radio in the European mobile radio telephone system according to the GSM standard, always 20 ms speech data are transmitted as source-coded code words between the mobile stations and the fixed stations. The fixed stations are again connected to a central station via a connection having a smaller bandwidth, in which central station the speech decoders are arranged. Since transmission errors which cannot be corrected by the channel decoder in prior-art system are masked in the channel decoder in the central station, only a very simple error masking option is provided. According to the invention, the channel decoder which is arranged in the mobile and fixed stations close to the receiver, more signals are derived which feature the reliability of the received data and, in dependence on these additional data, extensive different error masking measures are carried out on the received code words. This does not only take place in the mobile station, but also in the fixed station. This fixed station then applies only already modified error-free code words to the central station which need not be modified because of this, but in which only the available simple error masking possibilities are not utilized. This may considerably improve the speech quality in disturbed transmission, without intervening in the GSM standard especially during transmission between the base stations and the central station.
摘要翻译：当在欧洲移动无线电话系统中根据GSM标准通过无线电发送语音数据时，在移动站和固定站之间始终以20个语音数据作为源代码码字发送。固定站再次通过具有较小带宽的连接到中心站，其中中心站配置语音解码器。由于现有技术系统中的信道解码器无法校正的传输错误在中心站的信道解码器中被屏蔽，所以仅提供非常简单的错误掩蔽选项。根据本发明，布置在靠近接收机的移动站和固定站中的信道解码器导出更多的信号，其特征在于接收数据的可靠性，并且根据这些附加数据，承载了广泛的不同的误差掩蔽措施在收到的代码字上。这不仅发生在移动台，而且在固定电台。然后，该固定站仅将已经修改的无错代码字应用于中央站，由此不需要修改，但仅使用可用的简单错误掩蔽可能性。这可以显着地改善干扰的传输中的语音质量，而不需要干预GSM标准，特别是在基站和中心站之间的传输期间。

2. 发明授权

US6138136A Signal processor 有权
标题翻译：信号处理器
公开(公告)号：US6138136A
公开(公告)日：2000-10-24
申请号：US11673
申请日：1998-10-23
申请人： Harald Bauer , Dietmar Lorenz , Peter Meyer , Roberto Woudsma
发明人： Harald Bauer , Dietmar Lorenz , Peter Meyer , Roberto Woudsma
IPC分类号： G06F17/10 , G06F15/78 , G06F7/38
CPC分类号： G06F15/7857
摘要： A signal processor includes at least one data source (3), a plurality of input registers (11, 12, 13, 14, . . . ) whose inputs are coupled to the data source by data buses (9, 10), a plurality of multipliers (19, 20; 71, 72 . . . ) for multiplying data buffered in the input registers, and a processing arrangement spread over a plurality of data processor branches (4-0, 4-1, . . . , 4-N) for processing products (p0, p1, . . . ), generated by the multipliers by arithmetic and/or logic operations. For achieving enhanced flexibility of the signal processor and increasing the number of possible applications, multiplexers (15, 16, 17, 18; 70) are provided which are used for coupling the multipliers to a respective part of the input registers in dependence on control signals (I, II, III, IV). Such a signal processor is preferably used in mobile radio technology. Further fields of application are, for example, audio, video, medical and automotive technology, ISDN systems, and digital radio.
摘要翻译： PCT No.PCT / IB97 / 00760 Sec。 371 1998年10月23日第 102（e）日期1998年10月23日PCT提交1997年6月23日PCT公布。公开号WO97 / 50030 日期1997年12月31日信号处理器包括至少一个数据源（3），多个输入寄存器（11,12,13,14，...，...），其输入通过数据总线（9， 10），用于乘以在输入寄存器中缓冲的数据的多个乘法器（19,20; 71,72 ...）和分布在多个数据处理器分支（4-0，4-1，...）上的处理装置。 ...，4-N），用于通过算术和/或逻辑运算来生成由乘法器产生的乘积（p0，p1，...）。为了实现增强的信号处理器的灵活性并增加可能的应用的数量，提供多路复用器（15,16,17,18; 70），其用于根据控制信号将乘法器耦合到输入寄存器的相应部分（I，II，III，IV）。这样的信号处理器优选地用于移动无线电技术中。其他应用领域是例如音频，视频，医疗和汽车技术，ISDN系统和数字无线电。

3. 发明授权

US6049862A Signal processor executing compressed instructions that are decoded using either a programmable or hardwired decoder based on a category bit in the instruction 失效
标题翻译：信号处理器执行使用可编程或硬连线解码器基于指令中的类别位进行解码的压缩指令
公开(公告)号：US6049862A
公开(公告)日：2000-04-11
申请号：US895407
申请日：1997-07-16
申请人： Harald Bauer , Peter Kempf , Dietmar Lorenz , Peter Meyer
发明人： Harald Bauer , Peter Kempf , Dietmar Lorenz , Peter Meyer
IPC分类号： G06F9/30 , G06F9/318 , G06F9/38
CPC分类号： G06F9/3885 , G06F9/30156 , G06F9/30174 , G06F9/30178 , G06F9/30196
摘要： A signal processor is disclosed having a program memory which stores compressed program instructions and a decoder device which decodes the compressed program instructions to form decoded program instructions for controlling functions of the signal processor. The decoder device has a programmable decoder and a fixed decoding arrangement, where the fixed decoding arrangement is non-programmable and hardwired for decoding the compressed program instructions using logical operations. The programmable decoder includes a decoder memory, such as a ROM or RAM, having cells for storing the decoded program instructions in an uncompressed form. These cells are addressed for executing programmable decoding functions of the programmable decoder. The compressed program instructions include a first number of bits for determining a category of the compressed program instructions and a second number of bits for determining the address of the cells. A control unit detects the category of the compressed program instructions and outputs a control signal to a multiplexer, which selectively connects the programmable decoder or the fixed decoding arrangement to the output of the signal processor.
摘要翻译：公开了一种信号处理器，其具有存储压缩程序指令的程序存储器和对压缩程序指令进行解码以形成用于控制信号处理器的功能的解码程序指令的解码器装置。解码器装置具有可编程解码器和固定解码装置，其中固定解码装置是不可编程和硬连线的，用于使用逻辑运算对压缩的程序指令进行解码。可编程解码器包括具有用于以未压缩形式存储解码的程序指令的单元的诸如ROM或RAM的解码器存储器。这些单元被寻址用于执行可编程解码器的可编程解码功能。压缩的程序指令包括用于确定压缩程序指令的类别的第一数量位和用于确定单元的地址的第二位数。控制单元检测压缩程序指令的类别，并将控制信号输出到多路复用器，该多路复用器选择性地将可编程解码器或固定解码装置连接到信号处理器的输出端。

4. 发明授权

US5602766A Method of and device for forming the sum of a chain of products 失效
标题翻译：形成产品链总和的方法和装置
公开(公告)号：US5602766A
公开(公告)日：1997-02-11
申请号：US190068
申请日：1994-02-01
申请人： Harald Bauer , Johannes Schuck , Karl Hellwig , Dietmar Lorenz
发明人： Harald Bauer , Johannes Schuck , Karl Hellwig , Dietmar Lorenz
IPC分类号： G06F7/505 , G06F7/527 , G06F7/53 , G06F7/544 , G06F17/10 , G06F7/38 , G06F7/52
CPC分类号： G06F7/5443
摘要： Digital signal processing often requires the fast summing of a chain of products. Known signal processors often use two separate dam buses via which the values to be multiplied are supplied in parallel, it being assumed that these values originate from different sources, for example from different memories. Because a product of two binary numbers has double the number of positions, therefore, an adder having double the word width is also used. In order to reduce this substantial expenditure at the expense of only a slight reduction in speed, an adder is provided having only the single word width and to process the most-significant and least-significant bits of the product during two successive clock periods. The values to be multiplied can then be supplied successively.
摘要翻译： PCT No.PCT / NL93 / 00117 Sec。 371日期1994年2月1日 102（e）1994年2月1日PCT PCT。1993年6月4日PCT公布。公开号WO93 / 25959 日期1993年12月23日数字信号处理通常需要快速求和一系列产品。已知的信号处理器通常使用两个单独的大坝总线，通过该两个单独的大坝总线，要乘以的值被并行提供，假设这些值来自不同的源，例如来自不同的存储器。因为两个二进制数的乘积具有两倍的位数，因此，也使用具有双字宽的加法器。为了减少这种实质性的支出，仅以速度的轻微降低为代价，仅提供单字宽度的加法器，并且在两个连续的时钟周期期间处理产品的最高有效位和最低有效位。然后可以连续提供要乘以的值。

5. 发明授权

US5657421A Speech signal transmitter wherein coding is maintained during speech pauses despite substantial shut down of the transmitter 失效
标题翻译：语音信号发射机，其中在语音暂停期间维持编码，尽管发射机大量关闭
公开(公告)号：US5657421A
公开(公告)日：1997-08-12
申请号：US353044
申请日：1994-12-09
申请人： Dietmar Lorenz , Karl Hellwig
发明人： Dietmar Lorenz , Karl Hellwig
IPC分类号： G10L19/00 , G10L11/02 , G10L15/00 , G10L19/06 , G10L19/12 , G10L19/14 , G10L25/78 , H04B1/02 , H04B1/38 , H04B14/04 , G10L9/14
CPC分类号： G10L19/06 , G10L25/78
摘要： In so-called Code Excited Linear Prediction (CELP) coding methods for speech signal transmission, a codebook look-up method is used which is very processor-intensive. To conserve power, during speech pauses not only the transmitter but also the speech coder is turned off substantially completely. Consequently, when the speech signal resumes there is a transition interval before the filters of the speech coder become adjusted to full operation. For this reason, according to the invention, the filters are not turned off during speech pauses but are directly driven by codebook excitation vectors which correspond to the speech signal then being processed. As a result, there is a smoother and hardly perceptible transition between background noise and the speech signal when the latter resumes. An artificial background noise is produced in the receiver during speech pauses.
摘要翻译：在用于语音信号传输的所谓的码激励线性预测（CELP）编码方法中，使用非常处理器密集的码本查找方法。为了节省功率，在语音暂停期间，不仅基本上完全关闭发射机，而且语音编码器被关闭。因此，当语音信号恢复时，在将语音编码器的滤波器调整为完全操作之前存在转换间隔。因此，根据本发明，在语音暂停期间，滤波器不被关闭，而是由对应于随后被处理的语音信号的码本激励矢量直接驱动。结果，当后者恢复时，背景噪声和语音信号之间的平滑和难以察觉的转变。在语音暂停期间，在接收机中产生人造背景噪声。

6. 发明授权

US5912923A System for transmitting coded speech signals 失效
标题翻译：用于发送编码语音信号的系统
公开(公告)号：US5912923A
公开(公告)日：1999-06-15
申请号：US505414
申请日：1995-07-21
申请人： Karl Hellwig , Dietmar Lorenz , Rainer Dietsch
发明人： Karl Hellwig , Dietmar Lorenz , Rainer Dietsch
IPC分类号： H04B3/20 , H04B3/23 , H04M9/08
CPC分类号： H04M9/082
摘要： Complex coding of speech signals, as this is used, for example, in the GSM half rate speech coder, requires the use of a signal processor. On the other hand, a hands-free facility requires an arithmetic unit which adaptively calculates filter coefficients. This is only effected during speech pauses in which the speech coder is switched to a mode in which it generates codes for background noise with only little processing circuitry and expense. According to the invention, the signal processor for the coding device is therefore used for calculating the coefficients for the echo cancelling filter during speech pauses. This requires the use of not more than a single signal processor which can thus be used twice.
摘要翻译：语音信号的复杂编码，例如在GSM半速率语音编码器中使用，需要使用信号处理器。另一方面，免提设施需要一个自适应地计算滤波器系数的算术单元。这仅在言语停顿期间才能进行，其中语音编码器被切换到仅以很少的处理电路和费用生成用于背景噪声的代码的模式。根据本发明，因此，用于编码装置的信号处理器用于在语音暂停期间计算回波消除滤波器的系数。这需要使用不超过单个信号处理器，因此可以使用两次信号处理器。

7. 发明授权

US5799201A Signal processor 失效
标题翻译：信号处理器
公开(公告)号：US5799201A
公开(公告)日：1998-08-25
申请号：US761237
申请日：1996-12-06
申请人： Dietmar Lorenz , Harald Bauer , Rainer Dietsch , Karl Hellwig
发明人： Dietmar Lorenz , Harald Bauer , Rainer Dietsch , Karl Hellwig
IPC分类号： G06F9/38 , G06F7/544 , G06F9/28 , G06F15/78 , G06F17/10 , H04B1/40 , G06F7/00
CPC分类号： G06F17/10 , G06F15/7817 , G06F7/5443 , H04B1/40
摘要： A signal processor which includes a first data processing unit for processing data supplied thereto by a data bus system which operates in successive command cycles, and at least one further data processing unit operating in parallel with the first processing unit to process data supplied from the first processing unit during the command cycles. Since the further processing unit does not receive data from the bus system, that processor and still further processors can be added without requiring extension of the bus system. The parallel operation of a plurality of processing units achieves enhanced speed of computation, so that the signal processor is particularly adapted to computation of auto-correlation and cross-correlation functions and for FIR digital filtering.
摘要翻译：一种信号处理器，包括：第一数据处理单元，用于处理在连续的命令周期中操作的数据总线系统提供给其的数据;以及至少一个另外的数据处理单元，与第一处理单元并行操作，以处理从第一处理单元在命令循环。由于进一步的处理单元没有从总线系统接收数据，所以可以添加该处理器和另外的处理器，而不需要扩展总线系统。多个处理单元的并行操作提高了计算速度，使得信号处理器特别适用于计算自相关和互相关函数以及FIR数字滤波。

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