GB2284729B - Transmission techniques - Google Patents

Transmission techniques

Info

Publication number
GB2284729B
GB2284729B GB9502543A GB9502543A GB2284729B GB 2284729 B GB2284729 B GB 2284729B GB 9502543 A GB9502543 A GB 9502543A GB 9502543 A GB9502543 A GB 9502543A GB 2284729 B GB2284729 B GB 2284729B
Authority
GB
United Kingdom
Prior art keywords
transmission techniques
techniques
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
GB9502543A
Other versions
GB2284729A (en
GB9502543D0 (en
Inventor
David John Sumner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Telecommunications PLC
Original Assignee
British Telecommunications PLC
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 Telecommunications PLC filed Critical British Telecommunications PLC
Publication of GB9502543D0 publication Critical patent/GB9502543D0/en
Publication of GB2284729A publication Critical patent/GB2284729A/en
Application granted granted Critical
Publication of GB2284729B publication Critical patent/GB2284729B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Transceivers (AREA)
  • Radio Relay Systems (AREA)
GB9502543A 1992-09-03 1993-09-02 Transmission techniques Expired - Fee Related GB2284729B (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 (3)

Publication Number Publication Date
GB9502543D0 GB9502543D0 (en) 1995-03-29
GB2284729A GB2284729A (en) 1995-06-14
GB2284729B true GB2284729B (en) 1996-08-07

Family

ID=8211476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9502543A Expired - Fee Related GB2284729B (en) 1992-09-03 1993-09-02 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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607393A (en) * 1983-09-28 1986-08-19 U.S. Philips Corporation Receiver circuit comprising two phase control loops
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607393A (en) * 1983-09-28 1986-08-19 U.S. Philips Corporation Receiver circuit comprising two phase control loops
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

Also Published As

Publication number Publication date
GB2284729A (en) 1995-06-14
EP0671072A1 (en) 1995-09-13
SG48873A1 (en) 1998-05-18
WO1994006205A1 (en) 1994-03-17
HK1000409A1 (en) 1998-03-20
GB9502543D0 (en) 1995-03-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970902