公开(公告)号：EP1735933B8

公开(公告)日：2015-01-28

申请号：EP05734177.8

申请日：2005-04-13

Applicant: Intellectual Ventures I LLC

Inventor： WEBSTER, Mark, A. ,  SEALS, Michael, J.

IPC: H04J9/00 ,  H04L1/04 ,  H04L1/06

CPC classification number: H04L1/06 ,  H04B7/04 ,  H04B7/0404 ,  H04B7/0697 ,  H04J9/00 ,  H04L1/04 ,  H04L27/2601

公开(公告)号：EP2323293A1

公开(公告)日：2011-05-18

申请号：EP09175909.2

申请日：2009-11-13

Applicant: Alcatel-Lucent Deutschland AG

Inventor： Jentsch, Lothar ,  Pfeiffer, Thomas ,  Poehlmann, Wolfgang ,  Schmuck, Harald

IPC: H04J3/12 ,  H04J3/16 ,  H04J9/00

CPC classification number: H04J3/12 ,  H04J3/1694 ,  H04J9/00

Abstract: The invention relates to a method for transferring control data (CD) in a transmission system for transferring payload data (UD), where the transmission rate of the control data (CD) is small compared to the transmission rate of the payload data (UD), in which the payload data (UD) or their clock signal (CL) is used as carrier for the control data (CD), to a transmission system, a transmitter ( Fig, 2 ), and a Receiver.

Abstract translation: 本发明涉及一种用于在用于传送有效载荷数据（UD）的传输系统中传送控制数据（CD）的方法，其中控制数据（CD）的传输速率与有效载荷数据（UD）的传输速率相比较小， ，其中有效载荷数据（UD）或其时钟信号（CL）用作控制数据（CD）的载体，传输到发射机（图2）和接收机。

公开(公告)号：EP0989706B1

公开(公告)日：2008-04-23

申请号：EP98924555.0

申请日：1998-06-10

Applicant: Kabushiki Kaisha Kenwood

Inventor： TADA, Shunichi ,  SHIRAISHI, Kenichi

IPC: H04L27/22 ,  H04J9/00 ,  H03J7/06

CPC classification number: H04L7/06 ,  H03L7/1806 ,  H04J9/00 ,  H04L27/066

Abstract: A clock regeneration circuit for regenerating a clock signal for demodulating data from an AM data multiplex modulated signal where digitally modulated signals are multiplexed in the same frequency band as those of an amplitude-modulated signal at the same time. The carrier for an amplitude-modulated signal is extracted from an AM data multiplex modulated signal where digitally modulated signals are multiplexed in the same frequency band as those of the amplitude-modulated signal at the same time through a band-pass filter (1), and the oscillation frequency of a voltage-controlled oscillator (5) is controlled by the output of a phase comparator (3) through a loop filter (4). The oscillation output of the voltage-controlled oscillator (5) is supplied to a direct digital synthesizer (6) and the phase of the carrier extracted through the band-pass filter (1) is compared with the phase of the output of the direct digital synthesizer (6) by means of the phase comparator (3). The oscillation output of the voltage-controlled oscillator (5) is then synchronized with the carrier for the amplitude-modulated signal to produce a clock signal for demodulating data.

公开(公告)号：EP1800402A2

公开(公告)日：2007-06-27

申请号：EP05802917.4

申请日：2005-09-29

Applicant: Texas Instruments Incorporated

Inventor： YASUDA, Akira ,  KIMURA, Takashi

IPC: H03K7/08 ,  H03K9/08 ,  H04J9/00 ,  H04L5/04 ,  H03K5/22 ,  G01R29/02

Abstract: The objective of this invention is to provide a circuit that generates a spread frequency spectrum waveform with shaped frequency spectrum distribution. The waveform generator has a spread spectrum waveform generating circuit that generates a waveform with a spread spectrum and frequency spectrum distribution shaping circuit that shapes the frequency spectrum distribution of the spread spectrum waveform. In one embodiment, distribution shaping circuit can perform shaping such that the spread spectrum waveform has a frequency spectrum distribution having a spectrum reducing part in at least one band. Also, in one embodiment, the frequency of the spread spectrum waveform can vary periodically or nonperiodically.

Abstract translation: 用于产生具有整形频谱分布的扩频频谱波形的电路。 波形发生器具有产生具有扩频的波形的扩频频谱波形产生电路（1）和对扩频频谱的频谱分布进行整形的频谱分布整形电路（2）。 在一个实施例中，分布整形电路（2）对扩展频谱波形进行整形以给出在至少一个频带中具有减少的频谱部分的频谱分布。 而且，在一个实施例中，扩频波形的频率可以周期性地或非周期性地变化。

公开(公告)号：EP1602187A2

公开(公告)日：2005-12-07

申请号：EP04719866.8

申请日：2004-03-11

Applicant: QUALCOMM INCORPORATED

Inventor： ATTAR, Rashid Ahmed ,  BHUSHAN, Naga ,  AGRAWAL, Avneesh

IPC: H04J13/02 ,  H04J9/00 ,  H04B7/26 ,  H04B7/005

CPC classification number: H04L5/023

Abstract: An apparatus and a method enabling increased data throughput on the reverse link are disclosed.

公开(公告)号：EP0862289A3

公开(公告)日：2004-01-28

申请号：EP98440037.4

申请日：1998-02-25

Applicant: ALCATEL

Inventor： Wolf, Michael, Dr.

IPC: H04J3/06 ,  H04J9/00 ,  H04J3/14

CPC classification number: H04J3/0647 ,  H04J7/00 ,  H04J9/00 ,  H04J2203/006 ,  H04J2203/0062 ,  H04L1/242 ,  H04L7/0008 ,  H04L27/2035 ,  H04L27/2334

Abstract: Das angegebene Prüfverfahren ermöglicht die Prüfung von Taktpfaden über die in einem synchronen digitalen Nachrichtenübertragungssystem ein Referenztakt zur Synchronisierung an Netzelemente übertragen wird. Dazu wird der Referenztakt am Anfang des zu prüfenden Taktpfades markiert, indem ihm eine Information aufmoduliert wird. Am Ende des zu prüfenden Taktpfades wird beobachtet, ob der Referenztakt die eingangs aufmodulierte Information enthält. Die Information ist so gestaltet, daß der Betrieb des synchronen digitalen Nachrichtenübertragungssystems nicht beeinträchtigt ist. Weiter wird ein Netzelement angegeben, welches in der Lage ist, die für eine Prüfung notwendige Phasenmodulation mit seinem Taktgenerator selbst zu erzeugen.

公开(公告)号：EP1035679A2

公开(公告)日：2000-09-13

申请号：EP00300949.5

申请日：2000-02-07

Applicant: MARCONI COMMUNICATIONS LIMITED

Inventor： Driscoll, Johh Patrick

IPC: H04J14/02 ,  H04J7/00 ,  H04J9/00

CPC classification number: H04J14/0298 ,  H04B10/0773 ,  H04B10/0775 ,  H04B2210/074 ,  H04J7/00 ,  H04J9/00 ,  H04J14/02

Abstract: A signal transmission system uses an optical signal for carrying traffic information by modulating the brightness of the optical signal at a high frequency. A lower frequency optical overhead signal also modulates the optical signal, and a detector having a fall time characteristic of substantially longer duration than its rise time characteristic and which is of substantially longer duration than the longest bit period of the traffic is used to recover the overhead signal. The optical overhead signal modulates the maximum brightness of the signal, but not its minimum brightness so that the signal can be recarried even if the system is AC coupled.

Abstract translation: 信号传输系统通过以高频率调制光信号的亮度来使用光信号来传送交通信息。 较低频率的光开销信号也调制光信号，并且检测器具有比其上升时间特性持续时间明显更长的下降时间特性，并且其具有比业务的最长比特时间段明显更长的持续时间来恢复开销 信号。 光学开销信号调制信号的最大亮度，但不调制其最小亮度，因此即使系统交流耦合，信号也可以重新建立。

公开(公告)号：EP0457602B1

公开(公告)日：1997-07-30

申请号：EP91304443.4

申请日：1991-05-17

Applicant: FUJITSU LIMITED

Inventor： Hinokimoto, Shinichi

IPC: H04L5/06 ,  H04J9/00

CPC classification number: H04L9/00 ,  H04L1/0003 ,  H04L27/2608 ,  H04N1/4486

公开(公告)号：EP0664623A2

公开(公告)日：1995-07-26

申请号：EP95300382.9

申请日：1995-01-23

Applicant: Quantum Optics Corporation

Inventor： Cairns, John P.

IPC: H04J9/00 ,  H03C5/00 ,  H03D5/00

CPC classification number: H04J9/00 ,  H04L27/00

Abstract: A novel communication apparatus comprising a transmitter capable of geometrically modulating an existing modulated electromagnetic signal, a method for geometrically modulating a frequency modulated signal, and a receiver for decoding the modulated signal waveform without damaging the underlying harmonic content of the carrier wave and decoding the underlying modulated electromagnetic signal.

Abstract translation: 一种新颖的通信装置，包括能够几何调制现有的调制电磁信号，用于几何调制的频率调制信号的方法，以及用于不损坏载波的基本谐波含量以及解码所述基础的调制信号波形进行解码的接收器 调制电磁信号。

公开(公告)号：EP0457602A2

公开(公告)日：1991-11-21

申请号：EP91304443.4

申请日：1991-05-17

Applicant: FUJITSU LIMITED

Inventor： Hinokimoto, Shinichi

IPC: H04L5/06 ,  H04J9/00

CPC classification number: H04L9/00 ,  H04L1/0003 ,  H04L27/2608 ,  H04N1/4486

Abstract: A secure muli-carrier system wherein the number of bits to be transmitted in each signalling interval is determined during a start-up procedure. The transmitter sends a training signal to the receiver, which evaluates the transmission quality and calculates the bit rate to be used. This information is sent back in ciphered form to the transmitter. The transmitted data are not enciphered, security being provided by the fact that the bit rate is unknown.

Abstract translation: 一种多载波通信系统，其中发送机侧设备和接收机侧设备（10,11）通过传输线路（12）连接。 发送机侧装置包含用于调制数据的多载波调制器（14,14分钟），其中在每个周期中预先设定的数据位数由多个载波分别调制。 发送机侧装置将由多个载波调制单元（14,14分钟）调制的训练信号发送到接收机侧设备，其中数字被设置为等于数字的预定最大值。 接收机侧设备评估训练信号的组件的质量，其中各个载波调制分量，以确定要预设的上述数字，密码信息，并将密码信息发送给发送机侧设备。 发送机侧设备对信息进行解密以获得所确定的号码，并将其设置在其中提供的多载波解调器（16,16分钟）中。