公开(公告)号：EP0380172A3

公开(公告)日：1991-11-13

申请号：EP90200148.6

申请日：1990-01-22

申请人： Philips Electronics N.V. ,  HITACHI, LTD.

发明人： Bergmans, Johannes Wilhelmus Maria ,  Mita, Seiichi ,  Izumita, Morishi ,  Doi, Nobukazu

IPC分类号： H04L25/03 ,  H04L25/497 ,  G11B20/14

CPC分类号： H04L25/497 ,  H04L25/03019

摘要： In a system for transmitting a binary source signal from a data transmitter to a data receiver through a noisy dispersive channel, the data transmitter comprises a sliding block encoder which converts the binary source signal at a given symbol rate 1/T into an encoded binary data signal at a symbol rate P/TN, where P and N are positive integers such that N/P ≦ ²log(3)/2 + 0.79248. Since the channel introduces intersymbol interference and noise into the encoded data signal, the data receiver comprises the cascade of a equalizer, a sampler and a reconstruction circuit which serves to reconstruct the binary source signal at the symbol rate 1/T. The improved reconstruction circuit consists of a detector in a cascade with a decoder with a decoder with memory, while the equalizer, sampler and detector are arranged for the detection of a ternary data signal at the symbol rate P/(2NT).

公开(公告)号：EP0277393B1

公开(公告)日：1991-11-06

申请号：EP87202647.1

申请日：1987-12-30

申请人： Philips Electronics N.V.

发明人： Bergmans, Johannes W. M. ,  Wong, Yau Cheung

IPC分类号： H04L25/03

CPC分类号： H04L25/03057

公开(公告)号：EP0449371A1

公开(公告)日：1991-10-02

申请号：EP91200667.3

申请日：1991-03-25

申请人： MAGNAVOX ELECTRONIC SYSTEMS COMPANY

发明人： Dewitt, Paul, c/o INTERNATIONAL OCTROOIBUREAU B.V. ,  Majewski, James, c/o INTERNAT. OCTROOIBUREAU B.V. ,  Richter, Thomas, c/o INTERNAT. OCTROOIBUREAU B.V.

IPC分类号： B63B22/22 ,  B63B22/00

CPC分类号： B63B22/003 ,  B29C49/00 ,  B29L2031/3431

摘要： A surface unit for a sonobuoy or similar device is disclosed includes a variable volume sealed chamber (23) and an arrangement including a pressurized carbon dioxide cartridge (19) within the sealed chamber which, when energized, releases the carbon dioxide and increases the chamber volume from a collapsed volume to an expanded significantly greater volume. Electronic circuitry including radio transmitter circuitry is included within the sealed chamber along with a radio transmitter antenna which is within the sealed chamber and coupled to the radio transmitter circuitry. Expansion of the float sealed chamber functions to erect the antenna preparatory to transmission. The variable volume sealed chamber is formed of a semi-rigid plastic cup (32) having a generally cylindrical corrugated sidewall portion (31), a closed end describing one of the chamber ends and a rigid base member (25) sealed to the cup sidewall portion remote from the closed end and describing the other of the chamber ends. As it expands, cylinder length is directly proportional to cylinder volume.

摘要翻译： 公开了一种用于声波器或类似装置的表面单元，其包括可变容积密封室（23）和包括密封室内的加压二氧化碳筒（19）的装置，当被通电时，其释放二氧化碳并增加室容积 从收缩的体积到扩大的显着更大的体积。 包括无线电发射机电路的电子电路包括在密封室内，以及位于密封室内并耦合到无线电发射机电路的无线电发射机天线。 浮子密封室的扩展功能可以使天线准备传输。 可变体积密封室由具有大致圆柱形的波纹侧壁部分（31）的半刚性塑料杯（32）形成，描述腔室端部之一的封闭端和密封到杯侧壁的刚性基座构件（25） 远离封闭端的部分，并描述了腔室中的另一端。 随着其膨胀，气缸长度与气缸体积成正比。

公开(公告)号：EP0179512B1

公开(公告)日：1991-09-11

申请号：EP85201560.1

申请日：1985-09-27

申请人： Philips Electronics N.V.

发明人： van der Heijden, Bernardus F.

IPC分类号： H05B6/78

CPC分类号： H05B6/788

公开(公告)号：EP0241977B1

公开(公告)日：1991-07-10

申请号：EP87200619.2

申请日：1987-04-03

申请人： Philips Electronics N.V.

发明人： Veldhuis, Raymond Nicolaas Johan

IPC分类号： G11B20/18 ,  G11B20/02

CPC分类号： G11B20/1806 ,  G11B20/1876

公开(公告)号：EP0213651B1

公开(公告)日：1991-04-24

申请号：EP86201201.0

申请日：1986-07-08

申请人： Philips Electronics N.V.

发明人： Verbeek, Robert Jacques Marie ,  van Bokhorst, Rudolf ,  Dekker, Hendrikus Jacobus ,  Velthof, Johannes Hendrikus Maria

IPC分类号： H04Q1/46

CPC分类号： H04Q1/46

公开(公告)号：EP0392582A1

公开(公告)日：1990-10-17

申请号：EP90200734.3

申请日：1990-03-28

申请人： Philips Electronics N.V.

发明人： Rhebergen, Gertjan

IPC分类号： G01R23/15

CPC分类号： G01R23/02 ,  G01R23/15

摘要： A method of discriminating among frequencies of an a.c. voltage by means of a processor linked to the a.c. voltage, wherein, after detection of a first zero-crossing of the a.c. voltage, a looped program is initiated, the loop comprising a counter counting the number of loop cycles until a second zero-crossing is detected. Then it is determined in which preset interval the count is situated, each interval corresponding with a possibly occurring 10 frequency.

摘要翻译： 一种鉴别a.c.的频率的方法。 通过与a.c.相连的处理器来实现电压。 电压，其中，在检测到所述a.c.的第一过零点之后。 电压，启动循环程序，该循环包括计数循环次数的计数器，直到检测到第二个过零点。 然后确定计数所在的预设间隔，每个间隔对应于可能出现的10个频率。

公开(公告)号：EP0380172A2

公开(公告)日：1990-08-01

申请号：EP90200148.6

申请日：1990-01-22

申请人： Philips Electronics N.V. ,  HITACHI, LTD.

发明人： Bergmans, Johannes Wilhelmus Maria ,  Mita, Seiichi ,  Izumita, Morishi ,  Doi, Nobukazu

IPC分类号： H04L25/03 ,  H04L25/497 ,  G11B20/14

CPC分类号： H04L25/497 ,  H04L25/03019

摘要： In a system for transmitting a binary source signal from a data transmitter to a data receiver through a noisy dispersive channel, the data transmitter comprises a sliding block encoder which converts the binary source signal at a given symbol rate 1/T into an encoded binary data signal at a symbol rate P/TN, where P and N are positive integers such that N/P ≦ ²log(3)/2 + 0.79248. Since the channel introduces intersymbol interference and noise into the encoded data signal, the data receiver comprises the cascade of a equalizer, a sampler and a reconstruction circuit which serves to reconstruct the binary source signal at the symbol rate 1/T. The improved reconstruction circuit consists of a detector in a cascade with a decoder with a decoder with memory, while the equalizer, sampler and detector are arranged for the detection of a ternary data signal at the symbol rate P/(2NT).

摘要翻译： 在用于通过噪声色散信道从数据发射机向数据接收机发送二进制源信号的系统中，数据发射机包括一个滑块编码器，它将给定符号速率1 / T的二进制源信号转换成编码的二进制数据 信号以符号率P / TN，其中P和N是正整数，使得N / P log（3）/ 2 + 0.79248。 由于信道将符号间干扰和噪声引入编码数据信号中，数据接收机包括均衡器，采样器和重建电路的级联，其用于以符号率1 / T重构二进制源信号。 改进的重建电路由具有解码器级联的检测器与具有存储器的解码器组成，而均衡器，采样器和检测器被布置用于以符号率P /（2NT）检测三元数据信号。

公开(公告)号：EP0209193B1

公开(公告)日：1990-06-13

申请号：EP86201218.4

申请日：1986-07-14

申请人： Philips Electronics N.V.

发明人： Kessels, Jozef L.W. INT. OCTROOIBUREAU B.V. ,  Bruekers, Alphons A.M.L. INT. OCTROOIBUREAU B.V.

IPC分类号： H04Q11/04 ,  G11C19/00

CPC分类号： G06F7/78 ,  H04Q11/08

公开(公告)号：EP0357121A1

公开(公告)日：1990-03-07

申请号：EP89202087.6

申请日：1989-08-15

申请人： Philips Electronics N.V.

发明人： Patron, Christian Stephane Albert Ely

IPC分类号： H03B5/10 ,  H05B6/04

CPC分类号： H05B6/04 ,  H03B5/10

摘要： A high-frequency power oscillator comprises a multi-­grid electron tube (5), a current source (3) and a voltage-limiting circuit (4).
The current source (3) is connected to the screen grid of an electron tube (5) arranged as a tetrode. This limits the screen grid current when the voltage on the anode of the tetrode (5) is momentary lower than the screen grid voltage.
Between the screen grid and the cathode of the tetrode a voltage-limiting circuit (4) is inserted which starts being conductive above a predetermined threshold value. This forms a limit to the screen grid voltage so that it is possible to operate the tetrode (5) in a pulsating manner. A suitable embodiment of the voltage-limiting circuit (4) comprises a triode (4). The voltage between the grid and the cathode of the triode (4) is set to a constant value by means of a voltage source (2).

摘要翻译： 高频功率振荡器包括多栅极电子管（5），电流源（3）和限压电路（4）。 电流源（3）连接到布置为四极管的电子管（5）的屏栅上。 当四极（5）的阳极上的电压瞬时低于屏幕电网电压时，这会限制屏幕电流。 在屏栅和四极的阴极之间，插入限制电路（4），其开始导通超过预定阈值。 这对屏幕电网电压形成限制，使得可以以脉动的方式操作四极（5）。 限流电路（4）的合适实施例包括三极管（4）。 通过电压源（2）将三极管（4）的栅极和阴极之间的电压设定为恒定值。