WO2002015428A3 - Spread spectrum transmission for expanding information capacity in existing communication transmission systems - Google Patents
Spread spectrum transmission for expanding information capacity in existing communication transmission systems Download PDFInfo
- Publication number
- WO2002015428A3 WO2002015428A3 PCT/US2001/041734 US0141734W WO0215428A3 WO 2002015428 A3 WO2002015428 A3 WO 2002015428A3 US 0141734 W US0141734 W US 0141734W WO 0215428 A3 WO0215428 A3 WO 0215428A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spread spectrum
- systems
- processes
- programming
- transmissions
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/081—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the additional information signals being transmitted by means of a subcarrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/025—Systems for the transmission of digital non-picture data, e.g. of text during the active part of a television frame
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/083—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical and the horizontal blanking interval, e.g. MAC data signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70715—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with application-specific features
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001287182A AU2001287182A1 (en) | 2000-08-15 | 2001-08-15 | Communications system improvement for expanded information capacity for existingcommunication transmission systems using spread spectrum techniques |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US22548300P | 2000-08-15 | 2000-08-15 | |
US60/225,483 | 2000-08-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002015428A2 WO2002015428A2 (en) | 2002-02-21 |
WO2002015428A3 true WO2002015428A3 (en) | 2002-06-13 |
Family
ID=22845053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/041734 WO2002015428A2 (en) | 2000-08-15 | 2001-08-15 | Spread spectrum transmission for expanding information capacity in existing communication transmission systems |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2001287182A1 (en) |
UY (1) | UY26890A1 (en) |
WO (1) | WO2002015428A2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3838444A (en) * | 1972-10-30 | 1974-09-24 | Hazeltine Research Inc | System for transmitting auxiliary information in low energy density portion of color tv spectrum |
US4821120A (en) * | 1985-06-13 | 1989-04-11 | Devon County Council | Television sub-carrier transmission |
US5812184A (en) * | 1986-05-14 | 1998-09-22 | Radio Telecom & Technology, Inc. | Transmission of frame-to-frame reversed polarity signals in a two-way cable TV conversion system |
-
2001
- 2001-08-15 UY UY26890A patent/UY26890A1/en not_active Application Discontinuation
- 2001-08-15 AU AU2001287182A patent/AU2001287182A1/en not_active Abandoned
- 2001-08-15 WO PCT/US2001/041734 patent/WO2002015428A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3838444A (en) * | 1972-10-30 | 1974-09-24 | Hazeltine Research Inc | System for transmitting auxiliary information in low energy density portion of color tv spectrum |
US4821120A (en) * | 1985-06-13 | 1989-04-11 | Devon County Council | Television sub-carrier transmission |
US5812184A (en) * | 1986-05-14 | 1998-09-22 | Radio Telecom & Technology, Inc. | Transmission of frame-to-frame reversed polarity signals in a two-way cable TV conversion system |
Also Published As
Publication number | Publication date |
---|---|
AU2001287182A1 (en) | 2002-02-25 |
UY26890A1 (en) | 2002-02-28 |
WO2002015428A2 (en) | 2002-02-21 |
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