EP0678988B1
(de)
*
|
1994-04-11 |
1999-02-03 |
Hewlett-Packard GmbH |
Rauschpegelmessungsverfahren in Gegenwart von einem Signal
|
US5825817A
(en)
*
|
1994-07-22 |
1998-10-20 |
Anritsu Corporation |
Radio wave measuring apparatus for digital communication system
|
ES2108620B1
(es)
*
|
1994-12-19 |
1998-08-01 |
Instrumentacion Electronica Pr |
Procedimiento y aparato de medida de la relacion portadora-ruido en un canal de televison.
|
FR2731571A1
(fr)
*
|
1995-03-08 |
1996-09-13 |
Philips Electronique Lab |
Systeme de communication muni de moyens pour tester un canal de transmission et procede de test
|
GB9526250D0
(en)
*
|
1995-12-21 |
1996-02-21 |
Smith Myers Communications Ltd |
Channel operation monitoring in cellular communications networks
|
JPH10336262A
(ja)
*
|
1997-05-28 |
1998-12-18 |
Ikegami Tsushinki Co Ltd |
ディジタル信号の伝送品質測定回路
|
GB2327176B
(en)
*
|
1997-07-08 |
2002-04-24 |
Ericsson Telefon Ab L M |
Signal quality measurement
|
US5950110A
(en)
*
|
1997-08-06 |
1999-09-07 |
Interactive Techanologies, Inc. |
Jamming detection in a wireless security system
|
CA2230589C
(en)
*
|
1998-02-25 |
2004-02-10 |
Wen Tong |
Determining sir in a communications system
|
JP3560465B2
(ja)
*
|
1998-03-17 |
2004-09-02 |
富士通株式会社 |
双方向通信システム及び上り通信雑音レベル判定方法
|
WO2000019643A1
(en)
*
|
1998-09-28 |
2000-04-06 |
Motorola Inc. |
A terminal unit and a method for locating a terminal unit
|
US6397041B1
(en)
*
|
1999-12-22 |
2002-05-28 |
Radio Propagation Services, Inc. |
Broadcast monitoring and control system
|
US7778365B2
(en)
|
2001-04-27 |
2010-08-17 |
The Directv Group, Inc. |
Satellite TWTA on-line non-linearity measurement
|
US8005035B2
(en)
|
2001-04-27 |
2011-08-23 |
The Directv Group, Inc. |
Online output multiplexer filter measurement
|
US7583728B2
(en)
|
2002-10-25 |
2009-09-01 |
The Directv Group, Inc. |
Equalizers for layered modulated and other signals
|
US7173981B1
(en)
|
2001-04-27 |
2007-02-06 |
The Directv Group, Inc. |
Dual layer signal processing in a layered modulation digital signal system
|
US7822154B2
(en)
|
2001-04-27 |
2010-10-26 |
The Directv Group, Inc. |
Signal, interference and noise power measurement
|
US7471735B2
(en)
|
2001-04-27 |
2008-12-30 |
The Directv Group, Inc. |
Maximizing power and spectral efficiencies for layered and conventional modulations
|
US7184489B2
(en)
|
2001-04-27 |
2007-02-27 |
The Directv Group, Inc. |
Optimization technique for layered modulation
|
US7423987B2
(en)
|
2001-04-27 |
2008-09-09 |
The Directv Group, Inc. |
Feeder link configurations to support layered modulation for digital signals
|
US7184473B2
(en)
*
|
2001-04-27 |
2007-02-27 |
The Directv Group, Inc. |
Equalizers for layered modulated and other signals
|
US7245671B1
(en)
|
2001-04-27 |
2007-07-17 |
The Directv Group, Inc. |
Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
|
US7483505B2
(en)
|
2001-04-27 |
2009-01-27 |
The Directv Group, Inc. |
Unblind equalizer architecture for digital communication systems
|
US7151807B2
(en)
|
2001-04-27 |
2006-12-19 |
The Directv Group, Inc. |
Fast acquisition of timing and carrier frequency from received signal
|
US7502430B2
(en)
|
2001-04-27 |
2009-03-10 |
The Directv Group, Inc. |
Coherent averaging for measuring traveling wave tube amplifier nonlinearity
|
US7209524B2
(en)
|
2001-04-27 |
2007-04-24 |
The Directv Group, Inc. |
Layered modulation for digital signals
|
US7639759B2
(en)
|
2001-04-27 |
2009-12-29 |
The Directv Group, Inc. |
Carrier to noise ratio estimations from a received signal
|
JP2003070056A
(ja)
*
|
2001-08-28 |
2003-03-07 |
Ntt Docomo Inc |
通信チャネル設定方法、通信制御装置及び無線通信システム
|
AU2003280499A1
(en)
|
2002-07-01 |
2004-01-19 |
The Directv Group, Inc. |
Improving hierarchical 8psk performance
|
CA2392326A1
(en)
*
|
2002-07-03 |
2004-01-03 |
Newtrax Technologies Inc. |
Monitoring system and method
|
WO2004006455A1
(en)
|
2002-07-03 |
2004-01-15 |
The Directv Group, Inc. |
Method and apparatus for layered modulation
|
KR100877996B1
(ko)
*
|
2002-07-27 |
2009-01-12 |
엘아이지넥스원 주식회사 |
스펙트럼 분석기의 씨에이티브이 씨/엔 비율 측정방법
|
US6925301B2
(en)
*
|
2002-08-19 |
2005-08-02 |
Tektronix, Inc. |
Remote estimation of amplifier functionality
|
US7474710B2
(en)
|
2002-10-25 |
2009-01-06 |
The Directv Group, Inc. |
Amplitude and phase matching for layered modulation reception
|
US7463676B2
(en)
|
2002-10-25 |
2008-12-09 |
The Directv Group, Inc. |
On-line phase noise measurement for layered modulation
|
US7529312B2
(en)
|
2002-10-25 |
2009-05-05 |
The Directv Group, Inc. |
Layered modulation for terrestrial ATSC applications
|
CA2503530C
(en)
|
2002-10-25 |
2009-12-22 |
The Directv Group, Inc. |
Lower complexity layered modulation signal processor
|
ES2357568T3
(es)
*
|
2002-10-25 |
2011-04-27 |
The Directv Group, Inc. |
Método y aparato para adaptar los requisitos de potencia de la portadora de acuerdo con la disponibilidad en sistema de modulación en capas.
|
ATE461553T1
(de)
|
2002-10-25 |
2010-04-15 |
Directv Group Inc |
Schätzen des arbeitspunkts eines nichtlinearenausbreitungswellenrührenverstärker
|
JP2005006245A
(ja)
*
|
2003-06-16 |
2005-01-06 |
Hitachi Ltd |
ネットワーク監視システム、再生端末または監視端末
|
US7502429B2
(en)
|
2003-10-10 |
2009-03-10 |
The Directv Group, Inc. |
Equalization for traveling wave tube amplifier nonlinearity measurements
|
US7912427B2
(en)
*
|
2007-02-19 |
2011-03-22 |
The Directv Group, Inc. |
Single-wire multiswitch and channelized RF cable test meter
|