GB2001230A - Simulcast transmission system - Google Patents

Simulcast transmission system

Info

Publication number
GB2001230A
GB2001230A GB7828500A GB7828500A GB2001230A GB 2001230 A GB2001230 A GB 2001230A GB 7828500 A GB7828500 A GB 7828500A GB 7828500 A GB7828500 A GB 7828500A GB 2001230 A GB2001230 A GB 2001230A
Authority
GB
United Kingdom
Prior art keywords
time delay
transmissions
transmitter sites
link
transmission system
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.)
Granted
Application number
GB7828500A
Other versions
GB2001230B (en
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of GB2001230A publication Critical patent/GB2001230A/en
Application granted granted Critical
Publication of GB2001230B publication Critical patent/GB2001230B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Relay Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

A system of the type wherein transmissions of the same information are simultaneously broadcast by spatially removed transmitter sites. A control centre (20) establishes transmission links to the transmitter sites (1,2,3,4). The centre (20) includes electronic storage (26) for determining the required time delay for each signal applied over a predetermined line (e.g. paths 1,2,3) to assure information phase coherency of overlapping transmissions. Upon the establishment of a new link the appropriate time delay is recalled from memory and used to program a bucket brigade (28) to thereby provide the required delay to signals carried over the link. <IMAGE>
GB7828500A 1977-07-15 1978-06-30 Simulcast transmission system Expired GB2001230B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81588577A 1977-07-15 1977-07-15

Publications (2)

Publication Number Publication Date
GB2001230A true GB2001230A (en) 1979-01-24
GB2001230B GB2001230B (en) 1982-01-27

Family

ID=25219104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828500A Expired GB2001230B (en) 1977-07-15 1978-06-30 Simulcast transmission system

Country Status (4)

Country Link
JP (1) JPS5847107B2 (en)
CA (1) CA1109524A (en)
DE (1) DE2831056C2 (en)
GB (1) GB2001230B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040731A1 (en) * 1980-05-28 1981-12-02 Licentia Patent-Verwaltungs-GmbH Method and arrangement for the simultaneous transmission of information by several common-wave transmitters
EP0072984A1 (en) * 1981-08-21 1983-03-02 Licentia Patent-Verwaltungs-GmbH Method of automatically determining a time delay compensation in a common-wave radio network
GB2183969A (en) * 1985-11-28 1987-06-10 Stc Plc Network equalisation
EP0328385A2 (en) * 1988-02-10 1989-08-16 Nec Corporation A phase adjusting system for a radio communication system
EP0445027A1 (en) * 1990-03-02 1991-09-04 Etablissement Public Télédiffusion de France Method for synchronizing of transmitters in a radio broadcast network
GB2299488A (en) * 1995-03-16 1996-10-02 Motorola Ltd Radio antenna arrangement
GB2325069A (en) * 1997-05-10 1998-11-11 Samsung Electronics Co Ltd Providing simultaneous transmission of paging data
GB2389488A (en) * 2002-04-27 2003-12-10 Samsung Electronics Co Ltd Soft handover in CDMA broadcast/multicast system.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4343765C2 (en) * 1993-12-21 2003-11-13 Detecon Gmbh Control system for radio coverage in a cellular, digital mobile communication system
JP2006005615A (en) * 2004-06-17 2006-01-05 Eiden Kk Single-frequency network digital terrestrial broadcasting system, synchronization system for single-frequency network, and transmitting device

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040731A1 (en) * 1980-05-28 1981-12-02 Licentia Patent-Verwaltungs-GmbH Method and arrangement for the simultaneous transmission of information by several common-wave transmitters
EP0072984A1 (en) * 1981-08-21 1983-03-02 Licentia Patent-Verwaltungs-GmbH Method of automatically determining a time delay compensation in a common-wave radio network
DE3133120A1 (en) * 1981-08-21 1983-03-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD FOR AUTOMATICALLY DETERMINING RUNNING COMPENSATION IN A SAME-WAVE NETWORK
GB2183969B (en) * 1985-11-28 1989-10-04 Stc Plc Network equalisation
GB2183969A (en) * 1985-11-28 1987-06-10 Stc Plc Network equalisation
EP0328385A3 (en) * 1988-02-10 1991-10-30 Nec Corporation A phase adjusting system for a radio communication system
EP0328385A2 (en) * 1988-02-10 1989-08-16 Nec Corporation A phase adjusting system for a radio communication system
EP0445027A1 (en) * 1990-03-02 1991-09-04 Etablissement Public Télédiffusion de France Method for synchronizing of transmitters in a radio broadcast network
FR2659181A1 (en) * 1990-03-02 1991-09-06 Telediffusion Fse METHOD FOR SYNCHRONIZING TRANSMITTERS IN A RADIOPHONE DIFFUSION NETWORK
US5216717A (en) * 1990-03-02 1993-06-01 Telediffusion De France Frequency modulation broadcast transmitter synchronization method
GB2299488A (en) * 1995-03-16 1996-10-02 Motorola Ltd Radio antenna arrangement
GB2325069A (en) * 1997-05-10 1998-11-11 Samsung Electronics Co Ltd Providing simultaneous transmission of paging data
GB2325069B (en) * 1997-05-10 1999-11-10 Samsung Electronics Co Ltd A transmitter controller with a delayed reference clock signal
GB2389488A (en) * 2002-04-27 2003-12-10 Samsung Electronics Co Ltd Soft handover in CDMA broadcast/multicast system.
GB2389488B (en) * 2002-04-27 2004-09-01 Samsung Electronics Co Ltd Soft handover method for multimedia broadcast/multicast service in a CDMA mobile communication system
AU2003203878B2 (en) * 2002-04-27 2004-09-23 Samsung Electronics Co., Ltd. Soft handover method for multimedia broadcast/multicast service in a CDMA mobile communication system
US7307971B2 (en) 2002-04-27 2007-12-11 Samsung Electronics Co., Ltd. Soft handover method for multimedia broadcast/multicast service in a CDMA mobile communication system

Also Published As

Publication number Publication date
JPS5421103A (en) 1979-02-17
JPS5847107B2 (en) 1983-10-20
GB2001230B (en) 1982-01-27
DE2831056C2 (en) 1983-03-31
DE2831056A1 (en) 1979-02-01
CA1109524A (en) 1981-09-22

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Legal Events

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

Effective date: 19970630