子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Delta modulation low-power ehf communication link | JP2014513697 | 2012-05-31 | JP2014519761A | 2014-08-14 | ゲイリー・ディー・マコーマック; イアン・エー・カイルズ |
| 変調EHF信号を通信するためのシステムは、バイレベル送信情報信号に応答して、送信出力信号を生成する変調回路を含むことが可能である。 送信出力信号は、この送信情報信号が第1の情報状態にあるとき、EHF周波数を有することが可能であり、この送信情報信号が第2の情報状態にあるとき、抑圧可能である。 変調回路に動作可能に結合された送信トランスデューサは、送信出力信号に応答して、送信出力信号を電磁信号に変換することが可能である。 | ||||||
| 42 | Sensor synchronization method | JP2013514698 | 2011-06-15 | JP2013529042A | 2013-07-11 | イェッケル・ヴォルフガング; ジーモン・オトマー |
| 第一の線（３）と第二の線（４）を介して互いに接続された、少なくとも一つの電子制御ユニット（１）と少なくとも一つのセンサー（２）を備えたセンサー装置でのセンサーの同期方法である。 センサー（２）が、第一と第二の線を介して電気エネルギーを供給され、更に、少なくとも一つのデータ信号（ａ）が、第一と第二の線を介してセンサー（２）から電子制御ユニット（１）に伝送され、電子制御ユニット（１）が、極性が交番する所定の供給電圧信号を同期信号（ｂ，ｃ）としてセンサー（２）に伝送し、それに対して、センサーが、これらの同期信号の極性の交番後に、少なくとも一つのデータ信号（ａ）を電子制御ユニットに伝送する。 | ||||||
| 43 | 無線情報通信装置及び方法 | JP2003567055 | 2003-02-04 | JPWO2003067840A1 | 2005-06-02 | 松本 俊一; 俊一 松本 |
| 本発明に係る無線情報通信装置は、アナログ情報信号を所定のアナログパルス変調方式に従った変調処理により標本化してアナログパルスデータ信号を出力するアナログパルス変調器(14、26)と、前記アナログパルスデータ信号から送信すべき情報信号を生成する情報信号生成ユニット(16、17、20、21、22)とを有し、前記情報信号を無線送信するように構成される。 | ||||||
| 44 | JPS6259498B2 - | JP16250181 | 1981-10-12 | JPS6259498B2 | 1987-12-11 | UCHIKOSHI KOJI; KOBAYASHI KOZO |
| 45 | Optical heterodyne detection pulse receiving method | JP1420183 | 1983-01-31 | JPS59140736A | 1984-08-13 | MINEMURA KOUICHI; SHIKADA MINORU; EMURA KATSUMI |
| PURPOSE: To set an intermediate frequency to a frequency which is ≤1/3 as high as usual without causing pulse waveform distortion by synchronizing the intermediate frequency with an integral multiple of the repetitive frequency of a demodulated pulse signal. CONSTITUTION: The output signal of an intermediate frequency amplifier 7 is divided into two; one is inputted to an envelope detector 8 and the other is inputted to an intermediate frequency extractor 13 to extract the intermediate frequency. The output of the extractor 13 is frequency-divided by four through a frequency divider 14 and supplied as an input signal to a synchronism controller 15. The output of a timing extractor 10 is also supplied as an input signal 17 to a controller 15, which compares the input signals 16 and 17 with each other to control the driving current of a semiconductor laser 5 so that both of them are synchronized with each other. Consequently, the intermediate frequency is synchronized to a frequency four times as high as the repetitive frequency of the pulse signal. COPYRIGHT: (C)1984,JPO&Japio | ||||||
| 46 | Reducing method for quantized noise | JP16250181 | 1981-10-12 | JPS5863245A | 1983-04-15 | UCHIKOSHI KOUJI; KOBAYASHI KOUZOU |
| PURPOSE:To reduce effectively the quantized noise to the frequency of a low level and to simplify the increase of the number of changing bits, by compensating the analog voltage produced centering on a changing point based on the shorter one of the 1st and 2nd times of the sampling period of information. CONSTITUTION:The supplied digital signal Dn is compared with the signal Dn-1 obtained from a shift register 1 before sampling through a comparator 4. Then the signal, which does not change during the 1st time which is equal to an integer-fold value of the sampling period and then changed into the information which is different at the changing point, is detected by a detecting circuit 5 with the outputs Qa and Qb. This information is fed to a read-only memory ROM. Then the analog voltage of the shorter one of the 1st and 2nd times and produced centering on the changing point is compensated based on the shorter time and by an ROM9, a latching circuit 11, an ROM12, a compensated voltage generating circuit 14, etc. in case the different information has no change during the 2nd time which is equivalent to an integer-fold value of the sampling period. The output of a D/A converter 3 is compensated by a mixer circuit 15. | ||||||
| 47 | D-a conversion method | JP5943679 | 1979-05-14 | JPS55150629A | 1980-11-22 | SONEHARA NOBORU |
| PURPOSE:To make it possible to convert digital data including a time element to analogue data, by subtracting time data from the first register and by continuing to output an analogue signal in this subtraction time when an identification code is stored in the second register. CONSTITUTION:Identification code S to notify time data tm and tn beforehand is placed before time data tm and tn; and when identification code S is stored in the second register 2, identification code S is discriminated, and time data tm and tn of the first register 1 are subtracted successively according to sampling clocks by down counter 5, and in this subtraction time, the same analogue data, namely, analogue values of data D1 and D8 are continued to be output by D/A converter 3, and thus, a format of digital data including numeric data D1-D8 and time data tm and tn can be converted to analogue data easily. | ||||||
| 48 | Transmission system | JP3151379 | 1979-03-16 | JPS55124345A | 1980-09-25 | OKAMURA SHIROU |
| PURPOSE:To reduce the quantizing distortion by giving the quantization to the information signals by dividing them into several units of level quantum groups featuring the quantization level shift. CONSTITUTION:Waveforms 3 and 4 of signals 1 and 2 are led into quantizers 5 and 5' and then quantized at quantization levels 15 and 16 to be led to coders 6 and 7. In this case, levels 15 and 16 shift by about 1/2 quantum to each other. The signals encoded through encoders 5 and 6 are led to decoders 9 and 10 via track 8 of the memory unit or the transmission line. Decoders 9 and 10 restore the shift of the quanta of the encoded signals for demodulation. The demodulated signal is then regenerated to the original information signal or its related signal through compounder 11. Thus the quantization levels are shifted when the information signal is quantized, and as a result the quantizing distortion of nearly one bit can be reduced. | ||||||
| 49 | General repeating system | JP4250475 | 1975-04-07 | JPS51117513A | 1976-10-15 | MIKI TETSUYA; OKANO KAIEI |
| PURPOSE:To transmit any of analogue signals and digital signals by modulating the pulse position of an analogue signal, by using a repeating transmission line common to a digital signal, and by demodulating the modulated analogue signal to an original signal in the reception side. | ||||||
| 50 | Jibunkatsuparusutajukachiitsuchingusoshiki | JP5751775 | 1975-05-16 | JPS51820A | 1976-01-07 | DEIRU II FUISUKU; MAARU II HOOMAN |
| 51 | JPS4938049B1 - | JP624869 | 1969-01-29 | JPS4938049B1 | 1974-10-15 | |
| 52 | JPS4948214A - | JP2472173 | 1973-03-01 | JPS4948214A | 1974-05-10 | |
| 53 | MULTIPLEXED PULSE MODULATION USING SUPERPOSITION | PCT/US2012020698 | 2012-01-10 | WO2012118567A3 | 2012-11-01 | DUTTA PARTHA S; MURALIDHARAN SRUTHI |
| The present invention relates to an optical transmitter for transmitting data and optical receiver for receiving the data. The optical transmitter includes a pulse generator for generating N data streams overlapping in time from a de-multiplexed or inverse multiplexed data source. Each respective data stream has pulses with shapes unique to that respective data stream. The transmitter also includes an optical source optically transmitting an output pulse that is generated by summing the uniquely shaped pulses from each respective data stream that are overlapping in time. Each output pulse represents N bits of the data source, where N> 1. The optical receiver decodes the transmitted pulse into the N original data streams. | ||||||
| 54 | SIGNAL AND DEVICES FOR WIRED NETWORKS | PCT/GB2009000385 | 2009-02-11 | WO2009101404A3 | 2009-10-15 | BURNS DANNY; FARMER STEVE |
| A signal for use on a wired network interconnecting electronic devices, comprising: a base voltage for conveying power to the electronic devices; a pulsed voltage signal bearing coded information for transfer between the electronic devices; and a digital signal superimposed onto selected portions of the pulsed voltage signal, wherein the digital signal comprises a carrier signal modulated by a data signal for transfer between the electronic devices. This is used in fire alarm networks, for example, to convey multimedia or other data such as control signals, whilst maintaining compatibility with existing protocols using the pulsed voltage signal. | ||||||
| 55 | Adaptive Symbol Mapping | US15670142 | 2017-08-07 | US20170338898A1 | 2017-11-23 | Nadav Fine; Ran Soffer |
| The continuous demand for capacity and the limited available spectrum in wireless and wired communication has led to reliance on advanced modulation techniques to dramatically increase the number of bits per hertz per second. This demand in capacity and using the higher order constellations shorten the link range, and as a result, system gain becomes an important characteristic. The modulation techniques described here improve the system gain by, e.g., as much as 2.5 dB in high order modulations such as 4096-QAM. The modulation techniques include reducing the peak to average ratio and adding shaping gain. These techniques dramatically improve the system capacity, system gain, power consumption and system cost. | ||||||
| 56 | Adaptive Symbol Mapping Modulation | US15670137 | 2017-08-07 | US20170338897A1 | 2017-11-23 | Nadav Fine; Ran Soffer |
| The continuous demand for capacity and the limited available spectrum in wireless and wired communication has led to reliance on advanced modulation techniques to dramatically increase the number of bits per hertz per second. This demand in capacity and using the higher order constellations shorten the link range, and as a result, system gain becomes an important characteristic. The modulation techniques described here improve the system gain by, e.g., as much as 2.5 dB in high order modulations such as 4096-QAM. The modulation techniques include reducing the peak to average ratio and adding shaping gain. These techniques dramatically improve the system capacity, system gain, power consumption and system cost. | ||||||
| 57 | NODE DEVICE, REPEATER AND METHODS FOR USE THEREWITH | US15655122 | 2017-07-20 | US20170317755A1 | 2017-11-02 | Paul Shala Henry; IRWIN GERSZBERG; ROBERT BENNETT; FARHAD BARZEGAR; DONALD J. BARNICKEL; THOMAS M. WILLIS, III |
| Aspects of the subject disclosure may include, for example, a node device includes an interface configured to receive first signals. A plurality of coupling devices are configured to launch the first signals on a transmission medium as a plurality of first guided electromagnetic waves at corresponding plurality of non-optical carrier frequencies, wherein the plurality of first guided electromagnetic waves are bound to a physical structure of the transmission medium. Other embodiments are disclosed. | ||||||
| 58 | Method for synchronizing sensors | US13703979 | 2011-06-15 | US09780811B2 | 2017-10-03 | Wolfgang Jöckel; Otmar Simon |
| The invention relates to a method for synchronizing sensors in a sensor array, including at least one electronic control unit and at least one sensor, which are connected to each other by a first and a second line, wherein the sensor is supplied with electric power by the first and second lines, and additionally at least one data signal (a) is transmitted by the first and second lines from the sensor to the electronic control unit, wherein the electronic control unit transmits a defined supply voltage signal having varying polarity as a synchronization signal (b, c) to the sensor, whereupon the sensor transmits at least one data signal (a) to the electronic control unit, after the polarity of the synchronization signal has been reversed. | ||||||
| 59 | Transmitting and/or receiving data in a side channel | US13582734 | 2011-03-30 | US09231709B2 | 2016-01-05 | Kaishun Wu; Qian Zhang; Lionel Ming Shuan Ni |
| Systems, methods, and apparatus are described that employ specially designed interference patterns to build an in-band side channel without degrading the effective throughput of the main channel. A first device (100) includes a control component (130) that generates control information and an interference component (140) that transmits the control information (450) through emission of patterned interference data concurrently while other users are transmitting other data (420). A second device (300) receives the patterned interference data and the other data via a single antenna (350) and decodes the patterned interference data to extract the control data (450). The first device (100) transmits the other data (420) on a side channel (440) that resides in the same spectrum as the main channel (410) in which the other data (420) is emitted. The first device (100) encodes the interference patterns such that the control data (450) can be safely transmitted and extracted without effecting other data transmission. In one aspect, devices (100, 200, 300) can employ a dynamic cooperation multi-access channel (DC-MAC) protocol (1510) to schedule transmission of the other data (420) on the main channel (410), and to employ the side channel (440) for control and coordination. | ||||||
| 60 | SIGNALLING SYSTEM | US14749394 | 2015-06-24 | US20150317886A1 | 2015-11-05 | Alexander Kidger |
| A signalling system comprises a first data signal source (10, 14), a first data signal receiver (12, 16) and a cable 18 comprising two or more wire pairs ({1,2}, {3,6}, {4,5}, {7,8}) coupling the first data signal source to the first data signal receiver. A portion of each wire pair is wound around a magnetic core (28). A further winding (30) is wound around the core (28). A further signal source (24) is coupled to the further winding (30) and a further receiver (36, 26) is coupled to the wires to receive the further signal. The windings around the core apply the further signal to the wire pairs as a common-mode signal. This allows the further signal to be transmitted to the further receiver without affecting the signal transmitted between the source (10, 14) and the receiver (12, 16) and with only minor modification of the cable (18). | ||||||
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