HK1000409A1 - Transmission techniques - Google Patents

Transmission techniques

Info

Publication number
HK1000409A1
HK1000409A1 HK97101921A HK97101921A HK1000409A1 HK 1000409 A1 HK1000409 A1 HK 1000409A1 HK 97101921 A HK97101921 A HK 97101921A HK 97101921 A HK97101921 A HK 97101921A HK 1000409 A1 HK1000409 A1 HK 1000409A1
Authority
HK
Hong Kong
Prior art keywords
transmission techniques
techniques
transmission
Prior art date
Application number
HK97101921A
Inventor
Sumner David John
Original Assignee
British Telecomm
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Telecomm filed Critical British Telecomm
Publication of HK1000409A1 publication Critical patent/HK1000409A1/en

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
HK97101921A 1992-09-03 1997-10-14 Transmission techniques HK1000409A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92307996 1992-09-03
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

Publications (1)

Publication Number Publication Date
HK1000409A1 true HK1000409A1 (en) 1998-03-20

Family

ID=8211476

Family Applications (1)

Application Number Title Priority Date Filing Date
HK97101921A HK1000409A1 (en) 1992-09-03 1997-10-14 Transmission techniques

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)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU1914501A (en) * 1999-11-01 2001-05-14 Qualcomm Incorporated Split repeater

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
US5221062A (en) * 1989-12-07 1993-06-22 Hughes Aircraft Company Frequency synthesizer
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
CA2041705A1 (en) * 1990-07-25 1992-01-26 Jesse Eugene Russell Method and apparatus for providing wireless communications between remote locations

Also Published As

Publication number Publication date
EP0671072A1 (en) 1995-09-13
GB2284729A (en) 1995-06-14
GB9502543D0 (en) 1995-03-29
WO1994006205A1 (en) 1994-03-17
GB2284729B (en) 1996-08-07
SG48873A1 (en) 1998-05-18

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)