Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04B—TRANSMISSION
  • H04B7/00—Radio transmission systems, i.e. using radiation field
  • H04B7/14—Relay systems
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01Q—ANTENNAS, i.e. RADIO AERIALS
  • H01Q1/00—Details of, or arrangements associated with, antennas
  • H01Q1/12—Supports; Mounting means
  • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01Q—ANTENNAS, i.e. RADIO AERIALS
  • H01Q1/00—Details of, or arrangements associated with, antennas
  • H01Q1/12—Supports; Mounting means

Definitions

• Extension set for a receiving device especially a DVB-T receiving device
• the invention relates to an expansion set for a receiving device, in particular a DVB-T receiving device according to the preamble of claim 1.
• reception may be poorer at the desired location of the receiving device than elsewhere in the room.
• an expansion set in particular for a DVB-T receiver, for terrestrial reception.
• digitized television programs to provide which consists of an antenna stand device, which is provided with an antenna connection cable.
• This expansion set can be connected to a conventional DVB-T receiving device, it being possible for an antenna plugged into the receiving device to be removed from it and connected to the expansion set. So it is not necessary to buy a new antenna.
• the present invention makes use of the knowledge that the OFDM modulation method used in the DVB-T receiving device is capable of multipath propagation.
• This allows an active or passive indoor repeater to be provided.
• This can preferably be connected to an antenna socket as a plug-on module. Only in the case of an active indoor repeater this usually still has a mains connection, which - which would be the exception - is not provided with a rechargeable electrical storage (battery).
• the indoor repeater according to the invention could, however, also be connected directly to a coaxial cable which is provided by the conventional receiving antenna for DVB-T receiving devices located at a suitable location.
• the indoor repeater could even be arranged under the plaster.
• the repeater according to the invention is independent of the terminal, since the signals are not converted. Rather, it serves as a purely passive or active (i.e. amplifying) device, which uses the antenna, i.e. the coaxial cable only emits signals again (in passive mode) or emits more signals (in active mode).
• a top view of a room 1 is shown in a building, which has an L-shaped cross section, for example.
• a top view of a DVB-T receiver 5 is set up, for example, for receiving terrestrially broadcast digital programs.
• the device is provided with its own antenna 7, which is suitable for receiving the terrestrially digitized programs.
• the reception quality at the installation site is not optimal, the reception can be improved by using a repeater 9 according to the invention.
• the repeater 9 is connected to a coaxial connection socket 11, for example. It has its own antenna 13, which may be integrated. In the exemplary embodiment shown, this repeater 9 is designed as an active repeater which is connected to an electrical mains connection socket 17 via its own mains connection cable 15.
• This repeater contains, via a coaxial cable 19 connected to the connection box 11, the digitized programs received terrestrially via an external antenna system (not shown in detail), amplifies them, and transmits them again via its own integrated antenna 13. This significantly improves the quality of reception at the installation site of the receiver.
• the repeater 19 can equally well be designed as a passive device. It can also or also be electrically connected directly to a coaxial cable (i.e. not via a junction box as an interface). In this case it can even be accommodated in a flush-mounted box or chamber.

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Radio Relay Systems (AREA)
• Details Of Television Systems (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=7956253

Family Applications (1)

Country Status (9)

Families Citing this family (2)

Family Cites Families (8)

• 2001
  • 2001-04-26 DE DE20107231U patent/DE20107231U1/de not_active Expired - Lifetime
• 2002
  • 2002-03-21 EP EP02740432A patent/EP1382137A1/de not_active Ceased
  • 2002-03-21 WO PCT/EP2002/003197 patent/WO2002089361A1/de not_active Application Discontinuation
  • 2002-03-21 MX MXPA03009705A patent/MXPA03009705A/es unknown
  • 2002-03-21 JP JP2002586530A patent/JP2004528778A/ja active Pending
  • 2002-03-21 US US10/476,003 patent/US7024159B2/en not_active Expired - Fee Related
  • 2002-03-21 CA CA002441432A patent/CA2441432A1/en not_active Abandoned
  • 2002-03-21 KR KR10-2003-7012128A patent/KR20040015068A/ko not_active Application Discontinuation
• 2003
  • 2003-09-25 ZA ZA200307431A patent/ZA200307431B/xx unknown

Non-Patent Citations (1)

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