TW200631361A - Systems and methods for high-efficiency transmission of information through narrowband channels - Google Patents
Systems and methods for high-efficiency transmission of information through narrowband channelsInfo
- Publication number
- TW200631361A TW200631361A TW094138988A TW94138988A TW200631361A TW 200631361 A TW200631361 A TW 200631361A TW 094138988 A TW094138988 A TW 094138988A TW 94138988 A TW94138988 A TW 94138988A TW 200631361 A TW200631361 A TW 200631361A
- Authority
- TW
- Taiwan
- Prior art keywords
- systems
- methods
- information
- digital filter
- data rates
- Prior art date
Links
Classifications
-
- 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
- H04L27/2085—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 with more than one phase shift per symbol period
-
- 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
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
-
- 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
- H04L27/2078—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 phase change per symbol period is constrained
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Transmitters (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62621204P | 2004-11-08 | 2004-11-08 | |
US11/171,177 US7336723B2 (en) | 2004-11-08 | 2005-06-29 | Systems and methods for high-efficiency transmission of information through narrowband channels |
US11/171,592 US7269230B2 (en) | 2004-11-08 | 2005-06-29 | Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200631361A true TW200631361A (en) | 2006-09-01 |
Family
ID=36337157
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094138988A TW200631361A (en) | 2004-11-08 | 2005-11-07 | Systems and methods for high-efficiency transmission of information through narrowband channels |
TW094138989A TW200631362A (en) | 2004-11-08 | 2005-11-07 | Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094138989A TW200631362A (en) | 2004-11-08 | 2005-11-07 | Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency |
Country Status (5)
Country | Link |
---|---|
US (1) | US7359452B2 (zh) |
EP (2) | EP1813072A2 (zh) |
JP (1) | JP2008519539A (zh) |
TW (2) | TW200631361A (zh) |
WO (2) | WO2006053002A2 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10542305B2 (en) * | 2012-12-03 | 2020-01-21 | Nbcuniversal Media, Llc | Flexible broadcast system and method |
NZ771980A (en) * | 2018-06-18 | 2022-07-01 | Rakesh Aggarwal | High spectral efficiency “zero bandwidth modulation process” without side bands |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4747160A (en) * | 1987-03-13 | 1988-05-24 | Suite 12 Group | Low power multi-function cellular television system |
US4870489A (en) * | 1987-07-23 | 1989-09-26 | Ducret Robert P | NTSC compatible HDTV transmission system |
US5930303A (en) * | 1996-11-04 | 1999-07-27 | Walker; Harold | Digital modulation employing single sideband with suppressed carrier |
JP4016230B2 (ja) * | 1998-09-10 | 2007-12-05 | ソニー株式会社 | パネル型表示装置 |
US6748022B1 (en) * | 1999-07-06 | 2004-06-08 | Harold R. Walker | Single sideband suppressed carrier digital communications method and system |
JP3612563B2 (ja) * | 2001-09-07 | 2005-01-19 | 独立行政法人情報通信研究機構 | マルチモードブロック符号化変調復調方法 |
US6606010B1 (en) * | 2002-01-30 | 2003-08-12 | The Aerospace Corporation | Quadrature vestigial sideband digital communications method |
-
2005
- 2005-11-07 EP EP05825901A patent/EP1813072A2/en not_active Withdrawn
- 2005-11-07 TW TW094138988A patent/TW200631361A/zh unknown
- 2005-11-07 TW TW094138989A patent/TW200631362A/zh unknown
- 2005-11-07 JP JP2007540185A patent/JP2008519539A/ja active Pending
- 2005-11-07 WO PCT/US2005/040496 patent/WO2006053002A2/en active Application Filing
- 2005-11-08 EP EP05851424A patent/EP1815656A2/en not_active Withdrawn
- 2005-11-08 WO PCT/US2005/040405 patent/WO2006055337A2/en active Application Filing
-
2007
- 2007-09-10 US US11/900,249 patent/US7359452B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1815656A2 (en) | 2007-08-08 |
US7359452B2 (en) | 2008-04-15 |
EP1813072A2 (en) | 2007-08-01 |
TW200631362A (en) | 2006-09-01 |
WO2006055337A3 (en) | 2007-03-01 |
WO2006053002A9 (en) | 2006-08-24 |
WO2006053002A2 (en) | 2006-05-18 |
WO2006055337A2 (en) | 2006-05-26 |
WO2006055337A9 (en) | 2006-08-17 |
JP2008519539A (ja) | 2008-06-05 |
WO2006053002A3 (en) | 2007-03-01 |
US20080002784A1 (en) | 2008-01-03 |
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