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1. 发明授权

US5329536A Method and apparatus for sequentially decoding a digital stream encoded by a convolution type error-correcting code 失效
标题翻译：用于顺序解码由卷积型纠错码编码的数字流的方法和装置
公开(公告)号：US5329536A
公开(公告)日：1994-07-12
申请号：US676489
申请日：1991-03-28
申请人： Marc Darmon , Andre Bazet , Pascal Brelivet
发明人： Marc Darmon , Andre Bazet , Pascal Brelivet
IPC分类号： H03M13/23 , H03M13/39 , H04L1/00 , G06F11/10 , H03M13/12
CPC分类号： H03M13/39 , H04L1/0054
摘要： A method and apparatus for sequential decoding using the stack algorithm. A stack is used which is small in size and which has a leaky bottom. A counter stores the total count of nodes observed so as to abandon decoding if this count exceeds a fixed value. A comparator continuously compares the metric at the top of the stack with the largest metric lost from the bottom of the stack as stored in a memory. A small memory stores the path scanned through the logic tree, thereby directly providing the decoded block.
摘要翻译：一种使用堆栈算法进行顺序解码的方法和装置。使用尺寸小且底部有泄漏的堆叠。计数器存储观察到的节点的总计数，以便如果该计数超过固定值则放弃解码。比较器将堆栈顶部的度量与存储在存储器中的从堆栈底部丢失的最大度量进行比较。小存储器存储通过逻辑树扫描的路径，从而直接提供解码块。

2. 发明授权

US5483545A Method of automatically requesting retransmission in a duplex digital transmission system having at least one noisy return channel, and an installation for implementing the method 失效
标题翻译：在具有至少一个噪声返回信道的双工数字传输系统中自动请求重传的方法，以及用于实现该方法的装置
公开(公告)号：US5483545A
公开(公告)日：1996-01-09
申请号：US946795
申请日：1992-09-18
申请人： Marc Darmon , Marc Pontif , Philippe Sadot
发明人： Marc Darmon , Marc Pontif , Philippe Sadot
IPC分类号： H04L1/18 , H04L1/16
CPC分类号： H04L1/1806 , H04L1/1812
摘要： A go-back-N automatic repeat request method for use on a duplex installation having noisy return channels. When an acknowledge signal (ACK) is not correctly received, it is assumed to be positive until the Nth successive incorrectly received acknowledgement, which is treated as a negative acknowledgement, thereby ensuring that blocks are repeated even if acknowledgements are degraded by jamming.
摘要翻译：一种用于具有噪声返回信道的双工设备的回溯N自动重传请求方法。当确认信号（ACK）未被正确接收时，假设为正，直到第N个连续不正确接收到的确认被视为否定确认，从而确保即使确认由于卡住而导致确认，也将重复该块。

3. 发明授权

US5313473A Method and apparatus for digital data transmission with automatic repeat request 失效
标题翻译：具有自动重复请求的数字数据传输方法和装置
公开(公告)号：US5313473A
公开(公告)日：1994-05-17
申请号：US942109
申请日：1992-09-08
申请人： Marc Darmon , Marc Pontif , Philippe Sadot
发明人： Marc Darmon , Marc Pontif , Philippe Sadot
IPC分类号： H04L1/18 , H04L1/16
CPC分类号： H04L1/1806 , H04L1/1812
摘要： Enough room is provided in a transmitted frame to receive a plurality (n) of useful information blocks, thereby making it possible to catch up any excessive lateness (r) which may arise due to successive repeats. The decoder (2) provides a confidence flag (3) to the controlling microprocessor (5). The command block (COM) from the decoder includes an indication of the number of useful blocks that are transmitted in the frame. This block is advantageously applied to an HDLC component (8).
摘要翻译：在发送帧中提供足够的空间以接收多个（n）个有用信息块，从而可以赶上由于连续重复而可能产生的任何过度延迟（r）。解码器（2）向控制微处理器（5）提供置信标志（3）。来自解码器的命令块（COM）包括在帧中发送的有用块的数量的指示。该块有利地应用于HDLC组件（8）。

4. 发明授权

US5313497A Method of detecting a disturbing signal for a digital data demodulator, and apparatus implementing such a method 失效
标题翻译：检测数字数据解调器的干扰信号的方法，以及实现这种方法的装置
公开(公告)号：US5313497A
公开(公告)日：1994-05-17
申请号：US828176
申请日：1992-01-30
申请人： Philippe Sadot , Bertrand Thebault , Marc Darmon , Jacques Eudes
发明人： Philippe Sadot , Bertrand Thebault , Marc Darmon , Jacques Eudes
IPC分类号： H04B1/10 , H04L1/24 , H04L27/00
CPC分类号： H04B1/1027 , H04L1/241 , H04L1/242
摘要： A method of detecting a disturbing signal for demodulating digital data, wherein, on the modulated signal transposed into baseband, the disturbing signal is detected by periodically inserting known signals by means of a fixed guard time delay ((R+I)T.sub.s) applied to the received signal prior to demodulation, and wherein said method includes: a step of estimating the square of the modulus of the cross-correlation of the received referenced signal and of the expected signal at a determined instant when the reference signal is assumed to be present; a step of estimating the square of the correlation of the received signal at the same instant, of multiplying by a coefficient which represents the square of the threshold for the estimated correlation coefficient, and of multiplying by the number of reference symbols used in a reference burst; and a step of comparing with each other the two quantities obtained simultaneously during the preceding two steps. The invention also relates to apparatus for implementing the method. The invention is particularly applicable to digital radio beams.
摘要翻译：一种检测用于解调数字数据的干扰信号的方法，其中，在转置到基带中的调制信号上，通过周期性地插入已知信号来检测干扰信号，该固定保护时间延迟（（R + I）Ts）被施加到在解调之前的接收信号，并且其中所述方法包括：当假定存在参考信号时，在确定的时刻估计接收到的参考信号和期望信号的互相关的模数的平方的步骤 ; 估计相同时刻的接收信号的相关的平方的乘法运算，乘以表示估计的相关系数的阈值的平方的系数，以及乘以参考脉冲串中使用的参考符号的数量的步骤 ; 以及在前述两个步骤中同时获得的两个量的相互比较的步骤。本发明还涉及实现该方法的装置。本发明特别适用于数字无线电波束。

5. 发明授权

US5173902A Method of establishing an inverse pilot-sequence for deinterleaving as used in digital transmission 失效
标题翻译：在数字传输中使用的用于去交织的逆导频序列建立方法
公开(公告)号：US5173902A
公开(公告)日：1992-12-22
申请号：US874221
申请日：1992-04-27
申请人： Marc Darmon , Philippe Sadot
发明人： Marc Darmon , Philippe Sadot
IPC分类号： H03M13/27
CPC分类号： H03M13/27
摘要： A method of establishing an inverse pilot sequence for deinterleaving as used in digital transmission, with the interleaving being performed by means of a transmit register and a pilot sequence. Each portion (2 5 1 4 3 6) of the inverse pilot sequence is obtained from the preceding portion (3 1 6 5 4 2) of the inverse pilot sequence and from the two corresponding portions (2 6 1 5 4 3, 4 1 3 6 5 2) of the pilot sequence, with the k-th element of the N-th portion of the inverse pilot sequence being determined by observing the rank of the k-th element in the (N-1)-th portion of the pilot sequence in the N-th portion of the pilot sequence, and then in selecting the element to be found at this rank in the (N-1)-th portion of the inverse pilot sequence.
摘要翻译：一种用于在数字传输中使用的用于去交织的逆导频序列的方法，其中交织通过发送寄存器和导频序列来执行。逆导频序列的每个部分（2 5 1 4 3 6）从反向导频序列的前一部分（3 1 6 5 4 2）和两个对应部分（26 6 54 3，4 1 3 6 5 2），通过观察第（N-1）部分中第k个元素的秩，确定逆导频序列的第N个部分的第k个元素导频序列的第N个部分中的导频序列，然后在逆导频序列的第（N-1）部分中选择要在该等级找到的元素。

6. 发明授权

US5337331A Method of coherent demodulation for phase shift keying and a device for implementing the method 失效
标题翻译：相移键控的相干解调方法和实现该方法的装置
公开(公告)号：US5337331A
公开(公告)日：1994-08-09
申请号：US927399
申请日：1992-09-25
申请人： Philippe Sadot , Bertrand Thebault , Marc Darmon , Jacques Eudes
发明人： Philippe Sadot , Bertrand Thebault , Marc Darmon , Jacques Eudes
IPC分类号： H04L27/227 , H04L27/00 , H04L27/233 , H03D3/22 , H04L27/22
CPC分类号： H04L27/2332 , H04L2027/0032 , H04L2027/0057
摘要： A method and apparatus for coherent demodulation for phase shift keyed signals including:a phase estimation stage based on a sequence of reference symbols transmitted at the start of each block of data anda second order phase-locked loop stage.
摘要翻译： PCT No.PCT / FR92 / 00090 Sec。 371日期：1992年9月25日 102（e）日期1992年9月25日PCT提交1992年1月31日PCT公布。出版物WO92 / 14326 日期：1992年8月20日。一种用于相移键控信号的相干解调的方法和装置，包括：基于在每个数据块开始处发送的参考符号序列的相位估计级和二阶锁相环路。

7. 发明授权

US5056105A Interleaving method for a digital transmission system 失效
标题翻译：数字传输系统的交互方法
公开(公告)号：US5056105A
公开(公告)日：1991-10-08
申请号：US438380
申请日：1989-11-20
申请人： Marc Darmon , Philippe Sadot , Sami Harari
发明人： Marc Darmon , Philippe Sadot , Sami Harari
IPC分类号： H03M13/27
CPC分类号： H03M13/2785 , H03M13/2746
摘要： A psuedo-random interleaving method suitable for use in transmitting digital data. A pseudo-random pilot sequence is used for simultaneously reading from and writing to a vector of size Tv.gtoreq.Tc.times.Lm, the pilot sequence satisfying a minimum distance law Lm, except when blocking occurs. Deinterleaving is performed symmetrically by means of an inverse pilot sequence suitable for reconstituting successive code words.
摘要翻译：适用于传输数字数据的伪随机交错方法。伪随机导频序列用于同时读取和写入大小为Tv> / = TcxLm的矢量，导频序列满足最小距离定律Lm，除非发生阻塞。通过适用于重构连续码字的逆导频序列对称地执行去交织。

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