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1. 发明授权

EP1378079B1 COMMUNICATION SYSTEM FOR UNDERWATER USE 有权转让
标题翻译：水下通信系统
公开(公告)号：EP1378079B1
公开(公告)日：2011-01-05
申请号：EP02720146.6
申请日：2002-03-28
申请人： Atlas Elektronik UK Limited
发明人： DAVIES, Jonathan James, QinetiQ Ltd. , DUNN, Shaun Michael, QinetiQ Ltd. , POINTER, Stephen Arthur, QinetiQ Ltd. , DOWNER, Samuel William, QinetiQ Ltd.
IPC分类号： H04B13/02
CPC分类号： H04B11/00 , H04B13/02 , H04J13/0029 , H04J13/12 , H04L1/0057 , H04L27/103
摘要： For digital underwater transmission an information sequence (17) of digital bits is partitioned into a succession of symbols each comprising n bits where n is equal to or greater than one (2n potential symbols), each symbol (19) is replaced (20) with a corresponding base code sequence of length m bits and the result (21) is passed to an acoustic transducer after bi-phase modulation (22) on a carrier. The code has good correlation properties, e.g. a pseudo-random maixmal length sequence, a Gold code or a Kasami code, and the value of m/n is at least (32). Preferably the base sequence is cyclically extended at one or both ends prior to modulation, and Solomon Reed redundancy coding (18) is initially applied to the information sequence. The output (23) of modulator (22) may be prefaced (26) by a pair of chirp waveforms (24). Provision is made for Doppler and multi-path correction.

2. 发明公开

EP0944180A3 Radio information communication system using multi-carrier spread spectrum transmission system and error correction method 失效
标题翻译：利用用于纠错的多载波Spreizspektrumübertragungssystems和方法的无线通信系统
公开(公告)号：EP0944180A3
公开(公告)日：2000-06-28
申请号：EP99112275.5
申请日：1992-08-24
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Kobayashi, Hiroshi , Haruyama, Hideaki , Yano, Motomitsu , Kamura, Kouichiro , Ozawa, Kazuyoshi
IPC分类号： H04B1/713 , H04L1/00
CPC分类号： H04W88/08 , H04B1/69 , H04B1/713 , H04B1/7156 , H04B2001/6912 , H04L5/026 , H04L12/2801 , H04L27/103 , H04L27/2601 , H04L27/2602
摘要： The invention , a radio information communication system, is made to create a new bit string containing an error correction signal based on at least one bit string among a plurality of divided bit strings in the radio station on the transmission side, respectively attach error detection signals to the plurality of divided bit strings and the new bit string containing the error correction signal, and transmit them. Further, in the radio station on the reception side, a bit error is detected based on an error detection signal contained in a received bit string for each of a plurality of received bit strings subjected to the primary demodulation and an error of the bit string in which a bit error is detected is corrected based on that bit string among the plurality of received bit strings which contains the error correction signal. Further, in the radio station on the transmission side, a new bit string containing a first error correction signal is created based on at least one bit string among a plurality of divided bit strings and second error detection signals are respectively attached to the plurality of divided bit strings and the new bit string containing the first error correction signal and transmitted. Further, in the radio station on the reception side, a bit error is corrected based on the second error correction signal contained in the received bit string for each of a plurality of received bit strings subjected to the primary demodulation, and if an error remains in the result of error correction, an error of the bit string in which the error remains is corrected based on that received bit string among the plurality of received bit strings which contains the second error correction signal.

3. 发明公开

EP0665663A4 METHOD FOR SELECTIVELY RECEIVING SPREAD SPECTRUM SIGNAL ON CHIP BASIS. 失效
标题翻译：方法选择接收基于芯片的扩频信号。
公开(公告)号：EP0665663A4
公开(公告)日：1998-12-09
申请号：EP94917144
申请日：1994-06-02
申请人： TOYO COMMUNICATION EQUIP , KUROYANAGI NORIYOSHI
发明人： KUROYANAGI NORIYOSHI , SUEHIRO NAOKI , NAITOH TOSHIKATSU
IPC分类号： H04B1/69 , H04B1/707 , H04J13/00 , H04J13/16
CPC分类号： H04J13/0025 , H04B1/69 , H04B1/71 , H04B2001/6912 , H04B2201/709709 , H04J13/16 , H04L27/103
摘要： A method of receiving signals in spread spectrum communication. The S/N characteristics are improved by reducing the influence of the colored noises of a comparatively narrow band which are mixed in the process of transmission. Spread spectrum demodulation is performed by receiving the signal subjected to spread spectrum modulation by multiplying the data to be transmitted by a given series of spread codes, and by multiplying the received signal by a series of attenuation spread codes prepared by appropriately attenuating or amplifying each chip of the series of the spread codes used for the modulation.

4. 发明公开

EP0779726A3 Digital Communication Apparatus 失效
标题翻译：数字Kommunications设施
公开(公告)号：EP0779726A3
公开(公告)日：1997-12-10
申请号：EP96120002.9
申请日：1996-12-12
申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
发明人： Koga, Shoichi , Igata, Yuji , Hasako, Satoshi , Maki, Masahiro , Kishimoto, Michinori
IPC分类号： H04L27/00 , H04L27/26 , H04B1/713 , H04L27/10
CPC分类号： H04L1/0068 , H04B1/713 , H04B2001/71563 , H04L1/0041 , H04L1/0054 , H04L1/0071 , H04L1/20 , H04L5/0046 , H04L5/006 , H04L27/0012 , H04L27/103 , H04L27/2608
摘要： A highly reliable and high-speed data transmission is made by using an FH or MFSK mode as suitably selected according to the usage of channels. When a reception signal is entered into a receiver through a transmission line, (i) a signal processing unit supplies the spectrum intensity values of carrier frequencies, (ii) a channel detection unit controls the phase of a time slot based on the spectrum intensity values, selects the MFSK or FH modulation mode, and supplies reception code data corresponding to detected carrier frequencies, and (iii) a decoder supplies reception information data based on the reception code data. When transmission information data are entered into a transmitter, (i) a coding unit supplies, according to the selected modulation mode, transmission code data based on the transmission information data, (ii) a channel generation unit supplies, based on the transmission code data, carrier frequencies to be used and (iii) a waveform generation unit supplies a transmission signal to a transmission line.

5. 发明公开

EP0667695A1 RADIO INFORMATION AND COMMUNICATION SYSTEM USING MULTICARRIER SPREAD-SPECTRUM TRANSMISSION SYSTEM 失效
标题翻译：使用多载波扩频 - 发射系统的无线电信息和通信系统
公开(公告)号：EP0667695A1
公开(公告)日：1995-08-16
申请号：EP92918033.9
申请日：1992-08-24
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： KOBAYASHI, Hiroshi , HARUYAMA, Hideaki , YANO, Motomitsu , KAMURA, Kouichiro , OZAWA, Kazuyoshi
IPC分类号： H04L12/28 , H04J13/00 , H04B1/713 , H04L5/06 , H04B1/66
CPC分类号： H04W88/08 , H04B1/69 , H04B1/713 , H04B1/7156 , H04B2001/6912 , H04L5/026 , H04L12/2801 , H04L27/103 , H04L27/2601 , H04L27/2602
摘要： When from a radio station of a transmission side, data are sent by a radio transmission, first at least a part of a transmission data string is divided into a plurality of bit strings, and a plurality of carriers whose frequencies are different from each other are modulated primarily by these bit strings. Then, each of the carriers modulated primarily is modulated secondarily by a spread-spectrum system such as a frequency hopping system or a chirp system, and the modulated wave obtained by the secondary modulations is transmitted.
摘要翻译：当从发送方的无线电站通过无线电传输发送数据时，首先将发送数据串的至少一部分划分为多个比特串，并且频率彼此不同的多个载波是主要由这些比特串调制。然后，主要被调制的每个载波被扩频系统（例如跳频系统或啁啾系统）二次调制，并且通过二次调制获得的调制波被发送。

6. 发明公开

EP0667695A4 RADIO INFORMATION AND COMMUNICATION SYSTEM USING MULTICARRIER SPREAD-SPECTRUM TRANSMISSION SYSTEM. 失效
标题翻译： FUNKINFORMATIONS-和通信系统中的多载波扩频传输系统。
公开(公告)号：EP0667695A4
公开(公告)日：1995-05-29
申请号：EP92918033
申请日：1992-08-24
申请人： TOSHIBA KK
发明人： KOBAYASHI HIROSHI , HARUYAMA HIDEAKI , YANO MOTOMITSU , KAMURA KOUICHIRO , OZAWA KAZUYOSHI
IPC分类号： H04B1/69 , H04B1/713 , H04L5/02 , H04L12/28 , H04L27/26 , H04W88/08 , H04B1/66 , H04J13/00 , H04L5/06
CPC分类号： H04W88/08 , H04B1/69 , H04B1/713 , H04B1/7156 , H04B2001/6912 , H04L5/026 , H04L12/2801 , H04L27/103 , H04L27/2601 , H04L27/2602
摘要： When from a radio station of a transmission side, data are sent by a radio transmission, first at least a part of a transmission data string is divided into a plurality of bit strings, and a plurality of carriers whose frequencies are different from each other are modulated primarily by these bit strings. Then, each of the carriers modulated primarily is modulated secondarily by a spread-spectrum system such as a frequency hopping system or a chirp system, and the modulated wave obtained by the secondary modulations is transmitted.

7. 发明公开

EP0348167A3 Digital communicating method and apparatus 失效
标题翻译：数字通信方法与装置
公开(公告)号：EP0348167A3
公开(公告)日：1990-06-13
申请号：EP89306252.1
申请日：1989-06-20
申请人： CANON KABUSHIKI KAISHA
发明人： Degura, Yasusaburo Canon Azaminoryo , Sakanaka, Tetsuo , Imano, Haruo
IPC分类号： H04B10/00 , H04L27/10
CPC分类号： H04B10/1121 , H04B2001/6912 , H04L27/10 , H04L27/103
摘要： There are provided digital communicating method and apparatus for modulating digital signals into chirp signals and performing the communication. In this method, pulses indicative of digital signals of codes "1" and "0" are modulated, the modulated pulse signals are converted into chirp signals, the chirp signals are converted into the optical signals and output as transmission signals, and the digital signals are input and the pulses based thereon are generated. A wave of a predetermined frequency is multiplied to the pulses indicative of "1" and "0" of the digital signals and the modulation is executed. The communication signals can be converted into the chirp signals by the chirp conversion elements using the surface acoustic wave-dispersive delay lines having different converting characteristics by the simple construction. On the reception side, the modulated signals are demodulated by the chirp conversion elements having characteristics opposite to those of the chirp conversion elements on the transmission side. Thus, the code signals of "1" and "0" can be accurately discriminated and the error rate can be reduced. The communication reliability is improved.

8. 发明公开

EP0074848A2 Method and apparatus for data transmission using chirped frequency-shift-keying modulation 失效
标题翻译：借助锯齿状FSK调制方法和用于数据传输装置。
公开(公告)号：EP0074848A2
公开(公告)日：1983-03-23
申请号：EP82304840.0
申请日：1982-09-14
申请人： GENERAL ELECTRIC COMPANY
发明人： Baker, Lewin Thompson , Bose, Sanjay Kumar , Ellis, George Winston , Puckette, Charles McDonald
IPC分类号： H04L27/10 , H04B3/54
CPC分类号： H04L27/10 , H04L27/103
摘要： A method for transmission of digital data utilizes a carrier frequency offset in a first frequency direction for a first binary condition, and offset in a second frequency direction for the remaining binary condition, at the start of a bit time interval. The carrier frequency is swept in a preselected frequency direction during each bit time interval, to produce a chirped frequency-shift-keyed waveform in the frequency domain, for transmission of each bit of binary data. Frequency-shift-keyed demodulation is utilized at a receiving end, with the receiver synchronized to the transmitter bit time interval, to recover the transmitted digital data. Apparatus for data transmission using this chirped frequency-shift-keyed modulation waveform is disclosed.

9. 发明公开

EP2945289A1 A PULSE COMPRESSION METHOD FOR CHIRP SIGNAL AND WIRELESS TRANSCEIVER THEREOF 审中-公开
标题翻译：暴力犯罪嫌疑人犯罪嫌疑人
公开(公告)号：EP2945289A1
公开(公告)日：2015-11-18
申请号：EP15167113.8
申请日：2015-05-11
申请人： Great Union Technology Limited
发明人： Yan, Lixin
IPC分类号： H03M5/22 , H04L27/10 , H04B1/69
CPC分类号： H04B1/69 , H03F3/24 , H04B1/40 , H04B2001/0408 , H04B2001/0416 , H04B2001/6912 , H04L27/103
摘要： A pulse compression method for CHIRP signal and a wireless transceiver thereof; pulse compression processing of a cycle C k has the following steps: analytically obtaining all instantaneous frequency components of instantaneous signals and then isolating out a corresponding amplitude; using storage spaces M n to store the amplitude and phase of each of the instantaneous frequency components; setting T n as a length of time from t n to an end time of the corresponding cycle; calculating T n according to formula T n =T-t n ; using another set of storage spaces M T to rearrange amplitudes of the different instantaneous frequency components; storing the amplitude of each of the instantaneous frequency components in a set of T n value corresponding storage spaces of M T space; and accumulating overlapping amplitudes of instantaneous frequency components into another space in the storage spaces M T .
摘要翻译：一种用于CHIRP信号的脉冲压缩方法及其无线收发器; 循环C k的脉冲压缩处理具有以下步骤：分析获得瞬时信号的所有瞬时频率分量，然后分离相应的幅度; 使用存储空间M n来存储每个瞬时频率分量的振幅和相位; 将T n设置为从t n到相应周期的结束时间的时间长度; 根据公式T n = T-t n计算T n; 使用另一组存储空间M T来重新排列不同瞬时频率分量的振幅; 将每个瞬时频率分量的幅度存储在M T空间的对应的存储空间的一组T n值中; 并将瞬时频率分量的重叠幅度累积到存储空间M T中的另一个空间中。

10. 发明公开

EP1659702A1 Chirp slope multiple access 有权
标题翻译：啁啾斜坡多路访问
公开(公告)号：EP1659702A1
公开(公告)日：2006-05-24
申请号：EP06003240.6
申请日：2001-03-15
申请人： HARRIS CORPORATION
发明人： Waschka, Alton , Boyd, Robert
IPC分类号： H04B1/69 , H04L27/10 , H04L5/06 , H04L25/49
CPC分类号： H04L5/06 , H04B1/69 , H04B2001/6912 , H04L5/12 , H04L27/103
摘要： A chirp radio communication system for increasing the number of transmitters, or users, that can be simultaneously accommodated in the communication system and the data capacity of the system without increasing frequency bandwidth. A system may include plural transmitters, receivers, and a central station for establishing chirp radio communications. Each receiver may discriminate between chirp radio transmitter types based on the differing chirp signal characteristics.
摘要翻译：一种啁啾无线电通信系统，用于在不增加频率带宽的情况下增加通信系统中可同时容纳的发射机或用户的数量以及系统的数据容量。系统可以包括多个发射机，接收机和用于建立啁啾无线电通信的中心站。每个接收器可以基于不同的啁啾信号特征来区分啁啾无线电发射器类型。

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