| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 用于相位和增益检测器的数据调制的导频 | CN201380067200.2 | 2013-12-20 | CN104871467A | 2015-08-26 | M·戈特曼; R·格林伯格; Z·阿林娜 |
| 本发明描述了用于对无线通信信号的编码速率的不希望的增加进行减轻的方法、系统和设备。接收包括发送的码字的多个符号。所述多个符号包括利用第一调制和编码方式的第一组的数据符号，以及利用第二调制和编码方式的第二组的数据调制的导频符号。针对所述多个符号中的每一组符号，自适应地切换适用的解调方式。代替导频符号，使用第二组的数据调制的导频符号。与第一调制和编码方式相比，第二调制和编码方式是更可靠的调制和编码方式。 | ||||||
| 2 | Procédé et dispositif de reconnaissance de modulations | EP91402993.9 | 1991-11-07 | EP0487376A1 | 1992-05-27 | Lobert, Bruno; Sourdillat, Bruno |
Le procédé consiste à calculer (3) les paramètres suivants pour chaque raie de spectre d'émission relevé dans la bande de fréquence déterminée, une amplitude moyenne de toutes les raies k des spectres contenus dans la bande de fréquence déterminée, d'un rapport signal à bruit RSBk, un écart type ETk en amplitude de chaque raie du spectre et un coefficient de corrélation COR(k, k′) d'amplitude de chaque raie k avec les raies homologues des spectres des émissions contenues dans la bande de fréquence déterminée. Il consiste également à comparer au travers d'un réseau de neurones les paramètres de chaque spectre d'émission à des paramètres d'émission attendue, et à déclarer qu'une émission correspond à une émission attendue lorsque l'écart détecté par la comparaison entre les paramètres de l'émission et ceux attendus est minimum. Application : reconnaissance modulation. |
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| 3 | Transmission device | JP851381 | 1981-01-21 | JPS57121331A | 1982-07-28 | AZEGAMI TADASHI |
| PURPOSE:To permit the receiving part to have a narrow dynamic range, by detecting the magnitude of a supplied voltage, which is received from a power supply line, by a signal transmitting part and by controlling the intensity of a carrier signal to be transmitted in accordance with the magnitude of this detection voltage. CONSTITUTION:Each signal transmitting part of a transmission device where plural signal transmitting parts are connected to a common power supply line and a power source device is connected near a common receiving part of the power supply line takes in the signal from an oscillator from a terminal 21 of a process information taking-in part 15 and converts this signal to pulses of a narrow width by a monostable multivibrator 23. The supplied power from the power supply line is supplied to a receiving part 18 through terminals 24 and 25 are passes through a constant voltage element 27 to become an operating power for taking-in part 15 and a modulating part 17. The voltage from the part 17 and the voltage from the terminal 24 are supplied to an inversion amplifier 33, and the output of the amplifier 33 is used as an operating power for a carrier generator 16. The output of the generator 16 is modulated by the modulating part 17 and is transmitted to the power supply line. | ||||||
| 4 | Electromagnetic wave communication transmitting system | JP314480 | 1980-01-17 | JPS5596732A | 1980-07-23 | KURAUSU FUOOGERU |
| 5 | Procédé et dispositif de reconnaissance de modulations | EP91402993.9 | 1991-11-07 | EP0487376B1 | 1995-05-17 | Lobert, Bruno; Sourdillat, Bruno |
| 6 | 位相および利得検出器のためのデータ変調パイロット | JP2015549816 | 2013-12-20 | JP2016506164A | 2016-02-25 | ゴットマン、マキシム; グリーンバーガー、ロネン; アリナ、ジブ |
| ワイヤレス通信信号の符号化率の望ましくない増加を緩和するための方法、システム、およびデバイスが説明される。送信符号語を含む複数のシンボルが受信される。第1の変調および符号化方式によるデータシンボルからなる第1のグループと、第2の変調および符号化方式によるデータ変調されたパイロットシンボルからなる第2のグループと、を含む複数のシンボル。適用可能な復調方式は、複数のシンボルからなる各グループに対して適応的に切り換えられる。データ変調されたパイロットシンボルからなる第2のグループは、パイロットシンボルの代わりに使用される。第2の変調および符号化方式は、第1の変調および符号化方式よりも信頼性の高い変調および符号化方式である。 | ||||||
| 7 | JPH0222578B2 - | JP1376380 | 1980-02-08 | JPH0222578B2 | 1990-05-21 | OORE SHUNEETOKERUTO |
| 8 | Wireless information transmitter | JP18191284 | 1984-08-31 | JPS6160031A | 1986-03-27 | SHIMIZU SHINKICHI; WAKATSUKI NOBORU |
| PURPOSE:To improve the transmission and operability by incorporating converters for information form being voice signals, DC signals and digital signals in one package and operating the switching of the converters internally and externally. CONSTITUTION:Outputs and inputs of AC amplifiers 11a, 11b, VF and FV converters 12a, 12b and VF, FV converters 13a, 13b are selected by selectors 14a, 14b. The switching is executed by a method by synchronization by two selectors. Since a receiver 16 is provided with automatic gain control and auto matic frequency control and the DC level is not transmitted as it is but transmit ted after being converted into AC signals at the sender. Further, a selector switch (SW) 22 is provided additionally and similar modulators and receivers are added. In using these sets, the switching of the selectors 14a, 14b is attained; a switch 1 or 2 is selected at one side, a switch 1 or 2 is selected at the other side. | ||||||
| 9 | JPS6220742B2 - | JP851381 | 1981-01-21 | JPS6220742B2 | 1987-05-08 | AZEGAMI TADASHI |
| 10 | Light transmission system | JP15285282 | 1982-09-03 | JPS5882396A | 1983-05-17 | RICHIYAADO EDOWAADO EPUWAASU |
| 11 | Method and circuit device for transmitting signal using amplitude modulation radio broadcasting device | JP1376380 | 1980-02-08 | JPS55136738A | 1980-10-24 | OORE SHIYUNEETOKERUTO |
| 12 | Optical signal transmission system | JP5795378 | 1978-05-15 | JPS54149408A | 1979-11-22 | NAGANO MUNEHIKO |
| PURPOSE:To obtain a large current gain stably by performing double modulation in the transmission side according to turning-on and off of DC signals and performing double detection in the receiving side and hold a turning-off state at an operation anomaly time. CONSTITUTION:When relay 12 is operated by signals of relay circuit 1, oscillators 10 and 11 are driven, and driving circuit 12 subjects signals of f1 to amplitude modulation by signals of f2, and LED 4 is driven to emit light. Optical signals are transmitted to photo diode 6 through optical fiber 5 and are converted to AC electric signals. Then, after these signals are detected by the first detector circuit 14 and are converted to signals of frequency f2, they are detected by the second detector circuit 16 to operate relay 8 and operate relay circuit 9. | ||||||
| 13 | Method of transmitting information | JP12557576 | 1976-10-21 | JPS5253611A | 1977-04-30 | RICHIYAADO BARII SUEEDOROU |
| 14 | PROBABILISTIC SIGNAL SHAPING AND CODES THEREFOR | US15374397 | 2016-12-09 | US20180083716A1 | 2018-03-22 | Joon Ho Cho; Ronen Dar; Peter J. Winzer |
| We disclose a shaping encoder configured to use a variable-length shaping code to implement fixed-input fixed-output (FIFO) probabilistic signal shaping. In various embodiments, the variable-length shaping code can be a variable-input fixed-output code, a fixed-input variable-output code, or a variable-input variable-output code. The FIFO functionality of the shaping encoder is enabled by a control circuit that operates to: (i) check an output-overflow condition for each bit-word to be encoded using the variable-length shaping code and (ii) switch the shaping encoder from using the variable-length shaping code to using a suitable FIFO code if the output-overflow condition is satisfied. Some embodiments of the shaping encoder can incorporate a conventional FEC encoder in a manner that substantially preserves the shaping gain realized by the shaping encoder. | ||||||
| 15 | Data-modulated pilots for phase and gain detectors | US14132648 | 2013-12-18 | US09313059B2 | 2016-04-12 | Maxim Gotman; Ronen Greenberger; Ziv Alina |
| Methods, systems, and devices are described for mitigating an unwanted increase in a coding rate of a wireless communication signal. A plurality of symbols including a transmitted codeword is received. The plurality of symbols including a first group of data symbols with a first modulation and coding scheme and a second group of data modulated pilot symbols with a second modulation and coding scheme. Applicable demodulation schemes are adaptively switched for each group of the plurality of symbols. The second group of data modulated pilot symbols are used in lieu of pilot symbols. The second modulation and coding scheme is a more reliable modulation and coding scheme than the first modulation and coding scheme. | ||||||
| 16 | Silent subliminal presentation system | US458339 | 1989-12-28 | US5159703A | 1992-10-27 | Oliver M. Lowery |
| A silent communications system in which nonaural carriers, in the very low or very high audio frequency range or in the adjacent ultrasonic frequency spectrum, are amplitude or frequency modulated with the desired intelligence and propagated acoustically or vibrationally, for inducement into the brain, typically through the use of loudspeakers, earphones or piezoelectric transducers. The modulated carriers may be transmitted directly in real time or may be conveniently recorded and stored on mechanical, magnetic or optical media for delayed or repeated transmission to the listener. | ||||||
| 17 | Radio frequency transmission system | US108460 | 1979-12-31 | US4312072A | 1982-01-19 | Klaus Vogel |
| Radio transmission system in which the carrier frequency oscillator at the transmitter is wobbulated by varying its frequency in a periodic manner and modulated and transmitted to a receiving site where the detected signal is passed through two separate paths, one being supplied to a converter and the other is supplied to the converter through a delay line. The output of the converter comprises an intermediate frequency which contains the modulation which is then demodulated and detected. Modification of the invention provides for transmitting two or more separate intelligences on the carrier and detecting the two intelligences at the receiver. | ||||||
| 18 | Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems | US625491 | 1975-10-24 | US4019140A | 1977-04-19 | Richard Barry Swerdlow |
| Intelligible crosstalk in microwave radio systems employing single-sideband modulation is substantially eliminated by phase-modulating the AM carrier-wave prior to its modulation by the baseband signal. The phase-modulation may comprise a periodic signal, such as a single sinusoidal tone or pseudo-random noise, or it may comprise an aperiodic signal such as a truly random noise. In this latter event, the coding signal is transmitted to the receiving location to ensure proper demodulation of the encoded signal. | ||||||
| 19 | System for automatic transmission and reception of repetitive programs | US3534266D | 1967-09-28 | US3534266A | 1970-10-13 | HALSTEAD WILLIAM S |
| 20 | Time division multiplex system with prearranged carrier frequency shifts | US3471646D | 1965-02-08 | US3471646A | 1969-10-07 | MAGNUSKY HENRY; STEEL FRANCIS R JR |
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