WO1994006205A1 - Transmission via a common communication link of both a downconverted modulated radio frequency signal and a pilot signal used for conversion - Google Patents
Transmission via a common communication link of both a downconverted modulated radio frequency signal and a pilot signal used for conversion Download PDFInfo
- Publication number
- WO1994006205A1 WO1994006205A1 PCT/GB1993/001855 GB9301855W WO9406205A1 WO 1994006205 A1 WO1994006205 A1 WO 1994006205A1 GB 9301855 W GB9301855 W GB 9301855W WO 9406205 A1 WO9406205 A1 WO 9406205A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- site
- modulated
- conversion
- frequency
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2609—Arrangements for range control, e.g. by using remote antennas
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
- H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
- H03D3/241—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop
- H03D3/242—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits the oscillator being part of a phase locked loop combined with means for controlling the frequency of a further oscillator, e.g. for negative frequency feedback or AFC
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9502543A GB2284729B (en) | 1992-09-03 | 1993-09-02 | Transmission techniques |
EP93919491A EP0671072A1 (en) | 1992-09-03 | 1993-09-02 | Transmission via a common communication link of both a downconverted modulated radio frequency signal and a pilot signal used for conversion |
HK97101921A HK1000409A1 (en) | 1992-09-03 | 1997-10-14 | Transmission techniques |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92307996.6 | 1992-09-03 | ||
EP92307996 | 1992-09-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994006205A1 true WO1994006205A1 (en) | 1994-03-17 |
Family
ID=8211476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB1993/001855 WO1994006205A1 (en) | 1992-09-03 | 1993-09-02 | Transmission via a common communication link of both a downconverted modulated radio frequency signal and a pilot signal used for conversion |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0671072A1 (en) |
GB (1) | GB2284729B (en) |
HK (1) | HK1000409A1 (en) |
SG (1) | SG48873A1 (en) |
WO (1) | WO1994006205A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001033743A1 (en) * | 1999-11-01 | 2001-05-10 | Qualcomm Incorporated | Split repeater |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5001757A (en) * | 1989-12-22 | 1991-03-19 | Sprague Electric Company | FM stereo tone detector |
EP0468688A2 (en) * | 1990-07-25 | 1992-01-29 | AT&T Corp. | Method and apparatus for providing wireless communications between remote locations |
EP0471487A1 (en) * | 1990-08-16 | 1992-02-19 | Hughes Aircraft Company | Frequency synthesizer |
US5109532A (en) * | 1990-01-30 | 1992-04-28 | General Instrument Corporation | Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3335024A1 (en) * | 1983-09-28 | 1985-04-11 | Philips Patentverwaltung Gmbh, 2000 Hamburg | CIRCUIT ARRANGEMENT FOR A RECEIVER WITH TWO PHASE CONTROL CIRCUITS |
-
1993
- 1993-09-02 WO PCT/GB1993/001855 patent/WO1994006205A1/en not_active Application Discontinuation
- 1993-09-02 SG SG1996003236A patent/SG48873A1/en unknown
- 1993-09-02 EP EP93919491A patent/EP0671072A1/en not_active Ceased
- 1993-09-02 GB GB9502543A patent/GB2284729B/en not_active Expired - Fee Related
-
1997
- 1997-10-14 HK HK97101921A patent/HK1000409A1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5001757A (en) * | 1989-12-22 | 1991-03-19 | Sprague Electric Company | FM stereo tone detector |
US5109532A (en) * | 1990-01-30 | 1992-04-28 | General Instrument Corporation | Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system |
EP0468688A2 (en) * | 1990-07-25 | 1992-01-29 | AT&T Corp. | Method and apparatus for providing wireless communications between remote locations |
EP0471487A1 (en) * | 1990-08-16 | 1992-02-19 | Hughes Aircraft Company | Frequency synthesizer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001033743A1 (en) * | 1999-11-01 | 2001-05-10 | Qualcomm Incorporated | Split repeater |
Also Published As
Publication number | Publication date |
---|---|
SG48873A1 (en) | 1998-05-18 |
EP0671072A1 (en) | 1995-09-13 |
GB9502543D0 (en) | 1995-03-29 |
HK1000409A1 (en) | 1998-03-20 |
GB2284729A (en) | 1995-06-14 |
GB2284729B (en) | 1996-08-07 |
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