NO944905D0 - Senderanordning for mobilt satelittkommunikasjonsutstyr - Google Patents
Senderanordning for mobilt satelittkommunikasjonsutstyrInfo
- Publication number
- NO944905D0 NO944905D0 NO944905A NO944905A NO944905D0 NO 944905 D0 NO944905 D0 NO 944905D0 NO 944905 A NO944905 A NO 944905A NO 944905 A NO944905 A NO 944905A NO 944905 D0 NO944905 D0 NO 944905D0
- Authority
- NO
- Norway
- Prior art keywords
- transmitting device
- communication equipment
- satellite communication
- mobile satellite
- mobile
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
- H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmitters (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32206193 | 1993-12-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO944905D0 true NO944905D0 (no) | 1994-12-19 |
NO944905L NO944905L (no) | 1995-06-22 |
Family
ID=18139483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO944905A NO944905L (no) | 1993-12-21 | 1994-12-19 | Senderanordning for mobilt satelittkommunikasjonsutstyr |
Country Status (4)
Country | Link |
---|---|
US (1) | US5629961A (no) |
CN (1) | CN1071967C (no) |
DE (1) | DE4445823B4 (no) |
NO (1) | NO944905L (no) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5875396A (en) | 1995-11-13 | 1999-02-23 | Wytec, Incorporated | Multichannel radio frequency transmission system to deliver wideband digital data into independent sectorized service areas |
US5796784A (en) * | 1996-03-27 | 1998-08-18 | Motorola, Inc. | Method and apparatus for modifying amplitude of at least one symbol |
US5696794A (en) * | 1996-04-04 | 1997-12-09 | Motorola, Inc. | Method and apparatus for conditioning digitally modulated signals using channel symbol adjustment |
US5896421A (en) * | 1996-09-25 | 1999-04-20 | Hughes Electronics Corporation | Use of low pass filter and equalizer for noise reduction in direct up-conversion schemes |
FR2755335B1 (fr) * | 1996-10-24 | 1998-11-27 | Alsthom Cge Alcatel | Estimateur du defaut de balance d'un modulateur en quadrature et etage de modulation l'utilisant |
US6366619B1 (en) | 1998-08-28 | 2002-04-02 | Sicom, Inc. | Constrained-envelope transmitter and method therefor |
US6104761A (en) * | 1998-08-28 | 2000-08-15 | Sicom, Inc. | Constrained-envelope digital-communications transmission system and method therefor |
US6301310B1 (en) * | 1998-12-14 | 2001-10-09 | Hughes Electronics Corporation | Efficient implementation for systems using CEOQPSK |
US6999522B2 (en) | 2001-09-28 | 2006-02-14 | Intersil Americas, Inc. | Constrained-envelope digital communications transmitter and method therefor |
US6928121B2 (en) | 2001-09-28 | 2005-08-09 | Intersil Americas, Inc. | Digital transmitter with constrained envelope and spectral regrowth over a plurality of carriers |
AU2003225815A1 (en) * | 2002-03-19 | 2003-10-08 | Powerwave Technologies, Inc. | System and method for eliminating signal zero crossings in single and multiple channel communication systems |
US7251462B2 (en) * | 2003-07-08 | 2007-07-31 | Matsushita Electric Industrial Co., Ltd. | Modulation circuit device, modulation method and radio communication device |
AU2005244521A1 (en) * | 2004-12-20 | 2006-07-06 | Nec Australia Pty Ltd | Computing filter coefficients for an equaliser in a communication receiver |
CN101707579B (zh) * | 2009-11-12 | 2012-05-30 | 浙江大学 | 连续相位调制频域均衡调制解调方法 |
CN102355723B (zh) * | 2011-07-06 | 2013-11-06 | 成都林海电子有限责任公司 | 一种基于l波段的射频增益控制方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4706261A (en) * | 1982-08-13 | 1987-11-10 | Hazeltine Corporation | Differential phase modulation |
JPS5985166A (ja) * | 1982-10-29 | 1984-05-17 | Fujitsu Ltd | 位相変調器 |
US4613976A (en) * | 1984-05-02 | 1986-09-23 | British Columbia Telephone Company | Constant envelope offset QPSK modulator |
US4635276A (en) * | 1985-07-25 | 1987-01-06 | At&T Bell Laboratories | Asynchronous and non-data decision directed equalizer adjustment |
US4825448A (en) * | 1986-08-07 | 1989-04-25 | International Mobile Machines Corporation | Subscriber unit for wireless digital telephone system |
US4771438A (en) * | 1987-08-04 | 1988-09-13 | Hayes Microcomputer Products, Inc. | Method and apparatus for phase reference recovery in high speed fast turnaround modem |
JPH0771118B2 (ja) * | 1989-12-27 | 1995-07-31 | 三菱電機株式会社 | 変調装置 |
JP3011948B2 (ja) * | 1989-07-31 | 2000-02-21 | パイオニア株式会社 | ディジタル等化器 |
JPH03171953A (ja) * | 1989-11-30 | 1991-07-25 | Mitsubishi Electric Corp | 線形変調器 |
US5049832A (en) * | 1990-04-20 | 1991-09-17 | Simon Fraser University | Amplifier linearization by adaptive predistortion |
-
1994
- 1994-12-19 NO NO944905A patent/NO944905L/no not_active Application Discontinuation
- 1994-12-20 US US08/360,237 patent/US5629961A/en not_active Expired - Fee Related
- 1994-12-21 DE DE4445823A patent/DE4445823B4/de not_active Expired - Fee Related
- 1994-12-21 CN CN94120775A patent/CN1071967C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1113058A (zh) | 1995-12-06 |
NO944905L (no) | 1995-06-22 |
DE4445823B4 (de) | 2005-09-29 |
DE4445823A1 (de) | 1995-06-22 |
CN1071967C (zh) | 2001-09-26 |
US5629961A (en) | 1997-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69429555T2 (de) | Funkkommunikationsgerät | |
DE69327866T2 (de) | Mobile Kommunikationseinrichtung | |
FR2722626B1 (fr) | Antenne pour dispositif de communication | |
GB2279842B (en) | Mobile satellite communication system | |
FI964226A (fi) | Taloudellinen geosynkroninen liikkuva satelliittikommunikaatiojärjestelmä | |
DE69429696D1 (de) | Radiokommunikationssystem | |
IT1272814B (it) | Complesso di antenna per dispositivo di comunicazione senza filo | |
NO961384D0 (no) | Utstyr for mobilkommunikasjon | |
DE69535386T8 (de) | Mobile Satelliten Kommunikationsanordnung | |
NO944905D0 (no) | Senderanordning for mobilt satelittkommunikasjonsutstyr | |
GB2281480B (en) | Portable radio communication device | |
DE69419566D1 (de) | Tragbares Gerät für Satellitenkommunikation | |
GB2281013B (en) | Portable radio communication apparatus | |
FI956148A (fi) | Digitaalinen radioliikennelaitteisto | |
DK0806809T3 (da) | Håndholdt kommunikationsudstyr med en strålingsbeskyttende antenneindretning | |
IT1277734B1 (it) | Dispositivo di connessione di antenna di apparecchi radioportatili | |
FI960582A (fi) | Matkaviestinlaite | |
FI970024A0 (fi) | Viestintälaitteiden lähetin | |
DE69329310T2 (de) | SDH Funkkommunikationssystem und Sende-/Empfangseinrichtung hierzu | |
DE69434485D1 (de) | Vorrichtung für drahtlose mobile kommunikation | |
GB2320154B (en) | Mobile satellite communication system | |
KR940018211U (ko) | 위성통신기기의 송신장치 | |
KR960025584U (ko) | 휴대용 통신장비 등의 안테나 고정장치 | |
GB2313983B (en) | Portable radio communication device | |
GB9219143D0 (en) | Portable radio communication apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |