WO2006006932A1 - Appareil pour connexion de donnees haute vitesse - Google Patents

Appareil pour connexion de donnees haute vitesse Download PDF

Info

Publication number
WO2006006932A1
WO2006006932A1 PCT/SE2005/001145 SE2005001145W WO2006006932A1 WO 2006006932 A1 WO2006006932 A1 WO 2006006932A1 SE 2005001145 W SE2005001145 W SE 2005001145W WO 2006006932 A1 WO2006006932 A1 WO 2006006932A1
Authority
WO
WIPO (PCT)
Prior art keywords
telephone
outlet
terminal
pass filter
input
Prior art date
Application number
PCT/SE2005/001145
Other languages
English (en)
Inventor
Dan Sahlin
Original Assignee
Sahlin Innovation Ab
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 Sahlin Innovation Ab filed Critical Sahlin Innovation Ab
Publication of WO2006006932A1 publication Critical patent/WO2006006932A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/24—Arrangements for testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
    • H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
    • H04Q11/0435—Details
    • H04Q11/0471—Terminal access circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13039—Asymmetrical two-way transmission, e.g. ADSL, HDSL
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1309—Apparatus individually associated with a subscriber line, line circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1319—Amplifier, attenuation circuit, echo suppressor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13199—Modem, modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13202—Network termination [NT]

Definitions

  • the present invention relates to an adapting device as defined in the preamble of claim 1 and to a telephone and a telephone outlet as defined in the preamble of claim 4 and 5, respectively, and to a telephone connection as defined in the pream ⁇ ble of claim 6.
  • the ring signal is approxi ⁇ mately 20Hz and in addition a DC current is provided.
  • the Digital Subscriber Line (DSL) technology works by modulating the data signals to higher frequencies 3400 Hz.
  • DSL also works together with Integrated Services Digital Network (ISDN), where the speech signal is digitized occupying frequencies up to about 100 kHz.
  • ISDN Integrated Services Digital Network
  • the speech and data signals are separated by means of a diplex filter, that is, a combined high-pass filter, which lets the data through and a low-pass filter letting speech and lower frequency signals through.
  • WO 01/06751 discloses an internal computer network for use within a flat or a building, where the telephone lines within the flat are used for transmitting data and telephone signals.
  • the telephone outlets included in the internal network are con ⁇ nected in parallel.
  • a junction box is used to separate the internal network from the PSTN network.
  • WO 01/805434 discloses a similar internal network as the one disclosed in WO 01/06751, wherein a combination of wireless and wired communication can be used.
  • WO 02/056575 discloses a telephone outlet enabling telephone and data equipment to be connected to a telephone line via a common connector.
  • the outlet comprises a built-in low-pass filter. If an unfiltered signal is desired at a particular outlet, the low-pass filter can be bypassed by using two other pins in the connector, not nor ⁇ mally used for the telephone connection. In all the embodiments discussed in this document the outlets are connected in parallel.
  • an adapting device arranged to be connected between a telephone and a telephone outlet, said device comprising:
  • This adapting device separates the high-frequency data signal from the low- frequency telephone signal and forwards only the telephone signal to a telephone.
  • the data signal bypasses the telephone connection and is combined again with the telephone signal after the telephone connection.
  • the cut-off frequencies of the filters should be selected to match the appropriate cut-off frequencies, which will depend on the types of connections, that is, the type of telephone connection, such as Public Switched Telephone Network (PSTN) or an ISDN connection and the type of DSL connection, for example, Asymmetric DSL (ADSL), High bit-rate DSL (HDSL), or Very high bit-rate DSL (VDSL).
  • PSTN Public Switched Telephone Network
  • ISDN ISDN connection
  • DSL connection for example, Asymmetric DSL (ADSL), High bit-rate DSL (HDSL), or Very high bit-rate DSL (VDSL).
  • ADSL Asymmetric DSL
  • HDSL High bit-rate DSL
  • VDSL Very high bit-rate DSL
  • the adapting device may comprise a switch arranged to connect the high-pass filter either to the fourth input/output terminal or to a fifth input/output terminal, which is connectable to a DSL modem.
  • the adapting device can be used in all outlets, including the one to which the computer is connected. Even though adapters are only needed in the out ⁇ lets before the one where the computer is connected, they may be provided in all outlets, for flexibility. Such an adapting device will also work if the telephone out ⁇ lets are connected in parallel, provided adapting devices are arranged in all outlets.
  • the inventive adapting device may be comprised in a telephone, or in a telephone outlet, or it may be a separate unit connectable between the telephone outlet and the telephone.
  • a telephone connection comprising at least two serially connected outlets is characterized in that at least the outlet closest to the telephone network comprises an inventive adapting device.
  • Figure 1 shows a prior art setup for connecting a user site to a telephone station us ⁇ ing DSL technology.
  • Figures 2a, 2b and 2c show a standard serial telephone outlet according to the prior art, with no telephone connected, with a telephone connected and on-hook, and with a telephone connected and off-hook, respectively.
  • Figure 3 shows a general embodiment of a user's site according to the invention.
  • Figure 4 shows an adapter according to a basic embodiment of the invention.
  • FIGS. 5 a and 5b illustrate a more flexible embodiment of the invention.
  • FIG. 1 shows a prior art setup for connecting a user site 1 to a phone station 3 us ⁇ ing DSL technology.
  • Each connection shown as a line in the Figure consists of a pair of wires.
  • a telephone exchange 5 is used for handling the telephone signals, in a conventional way.
  • a Digital Subscriber Line Access Multi ⁇ plexer (DSLAM) 7 terminates a DSL line in the telephone station and is typically connected to the Internet.
  • the telephone exchange 5 and the DSLAM 7 are both connected to a first diplex filter 9 communicating with a second diplex filter 11 at the user's site 1.
  • Each of the diplex filters 9, 11 has three input/output terminals:
  • the second diplex filter is connected to a first telephone 13 and, through a DSL mo ⁇ dem 15, to a computer 17.
  • One or more additional telephones 19 may be connected in series with the first telephone 13.
  • the computer has to be connected at the first telephone outlet, as shown in Figure 1.
  • FIGS 2a, 2b and 2c show a standard serial telephone outlet 21 comprising a first and a second outlet terminal 23, 25, respectively according to the prior art. Each line in the drawing corresponds to two electrical wires. The person skilled in the art is familiar with the details of such connections. Normally other outlets of the same kind will be serially connected with this outlet 21.
  • the outlet 21 contains a switch 27, which is shown as closed in Figure 2a. Since no telephone is connected, any telephone signal is transmitted directly through the outlet to the following outlet.
  • a telephone 29 on-hook is connected to the outlet 21.
  • a first telephone terminal 31 is connected to the first outlet terminal 23 and a second telephone ter- minal 33 is connected to the second outlet terminal 25.
  • the switch 27 is then open.
  • the signal passes through the switch in the telephone 29 instead of directly through the outlet.
  • the telephone 29 comprises a similar switch 35 as the one in the outlet, which is closed while the receiver is on-hook, as shown in Figure 2b.
  • the telephone receiver is off-hook. Therefore, the switch 35 in the telephone is open. Any telephone outlet connected after this telephone is cut off from the connection while the receiver is off-hook.
  • FIG. 3 shows a general embodiment of a user's site 41 according to the invention.
  • a computer 17 is placed at the last outlet in the series, but this is not necessarily so.
  • a telephone 19 is connected to the last outlet and there is one tele- phone outlet to which a telephone 13 is connected, before the last outlet.
  • the computer may also be connected at the first outlet.
  • a bypass unit 43 com ⁇ prising a first and a second diplex filter 45, 47 are provided.
  • the first diplex filter 45 communicates with the diplex filter at the phone station (see Figure 1). It is also ar ⁇ ranged for low-speed communication with the telephone 13.
  • the data signals, which have a higher frequency are transmitted directly to the second diplex filter 47, which also receives the telephone signal from the first telephone 13.
  • the third diplex filter 49 communicates with a telephone 19 and a DSL modem 15, which in turn communicates with the computer 17.
  • each of the telephones be- fore the DSL modem must be provided with a bypass unit 43 comprising a configu ⁇ ration of two diplex filters as the ones 45, 47 shown for the first telephone 13.
  • Figure 4 shows a simple adapter 51 according to a basic embodiment of the inven ⁇ tion.
  • the adapter is connected between the outlet 21 and the telephone 29.
  • each line indicating a connection in Figure 4 really comprises a pair of wires. Each wire may be connected to a single connector, so that each terminal discussed in connection with Figures 2a, 2b, 2c and 4 is implemented as two con ⁇ nectors.
  • the adapter 51 comprises a first input/output terminal 53 for connection to the first outlet terminal, a second input/output terminal 55 for connection to the first tele ⁇ phone terminal, a third input/output terminal 57 for connection to the second tele ⁇ phone terminal and a fourth input/output terminal 59 for connection to the second outlet terminal.
  • a first low-pass filter 61 is connected between the first 53 and the second 55 termi ⁇ nal.
  • a second low-pass filter 63 is connected between the third 57 and the fourth 59 terminal. Between the first and the fourth terminal 53, 59 a high-pass filter 65 is connected.
  • the cut-off frequencies of the filters 61, 63, 65 are selected in such a way that the telephone signals will reach the telephone 29 whereas the data signals, which have a higher frequency, will be transmitted directly through the adapter. In this way, even if the telephone goes off-hook, the data signal will still pass through the outlet to the next serially connected outlet.
  • the properties of the filters can be selected substan ⁇ tially like the ones currently used for DSL modems.
  • a diplex filter 49 is used to separate the telephone and data signals.
  • an adapter like the one 51 shown in Figure 4 should be connected. Outlets after this outlet may, but need not have an adapter connected.
  • the adapter 71 like the one shown in Figure 4, comprises a first in ⁇ put/output terminal 73 for connection to the first outlet terminal, a second in ⁇ put/output terminal 75 for connection to the first telephone terminal, a third in ⁇ put/output terminal 77 for connection to the second telephone terminal and a fourth input/output terminal 79 for connection to the second outlet terminal.
  • a first low-pass filter 81 is connected between the first 73 and the second 75 termi ⁇ nal.
  • a second low-pass filter 83 is connected between the third 77 and the fourth 79 terminal.
  • On the first terminal 73 one end of a high-pass filter 85 is connected.
  • the other end of the high-pass filter 85 is connectable, by means of a switch 87, either to the fourth terminal 79 or to a fifth terminal 89 to which a DSL modem 91 is con ⁇ nectable.
  • Figure 5a shows the situation where a DSL modem is not connected.
  • the switch 87 is set to connect the high-pass filter to the fourth terminal.
  • the adapter then functions in the same way as the one shown in Figure 4.
  • a DSL modem is connected.
  • the switch connects the high-pass filter to the DSL modem, which may in turn be connected to a computer.
  • the com ⁇ puter will receive the data signals through the DSL modem.
  • the telephone signal will pass through the low-pass filter from the telephone 29 to the outlet 21, as long as the telephone 29 is on-hook.
  • the switch is controlled mechanically.
  • the switch automatically connects to the fifth terminal 89.
  • the switch 87 may be implemented by means of a RJ45 or RJl 1 connector with built-in switch functions. Such connectors are commercially available.
  • the switch may be controlled manually.
  • the adapter 71 of Figures 5a and 5b is placed in all outlets, it will be possible to connect the DSL modem to any outlet.
  • the DSL modem may be con ⁇ nected through a diplex filter, as is done when using the adapter of Figure 4.
  • the adapter 71 will also work when the outlets are connected in parallel, provided that adapters are placed in all outlets. Moreover, the adapter 71 will also handle a mixed parallel/serial configuration of the telephone outlets. In the opposite direction, the signals will take the same path, i.e. the telephone sig ⁇ nals will pass through the telephone (as long as the receiver is on-hook) and the data signals will pass through the high-pass filter thereby bypassing the telephone.
  • the physical design of the adapter according to the invention may have to vary from country to country, depending on the layout of the connecting means in each coun ⁇ try.
  • the adapter can consist of a separate box, connected to the outlet and the telephone through wires, in which case the box may remain the same.
  • the adapter according to the invention can be implemented as a separate unit to be plugged in between the telephone outlet and the telephone. It can also be incorpo ⁇ rated in the telephone.
  • the telephone will comprise both the telephone itself 29 as shown in Figures 4, 5 a and 5b, and the adapter unit 51, 71.
  • Such a tele ⁇ phone can be connected to an ordinary outlet in the normal way and be used accord ⁇ ing to the invention.
  • the adapter can be incorporated into the outlet.
  • the outlet will then comprise both the outlet itself 21 as shown in Figures 4, 5 a and 5b, and the adapter unit 51, 71. If the outlet is modified in this way, an ordinary telephone can be con ⁇ nected to the outlet in the normal way and be used according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Habituellement, un modem DSL doit être inséré dans la première sortie téléphonique. Le dispositif d'adaptation de l'invention permet la connexion du modem DSL dans n'importe quelle sortie, notamment pour les installations où les sorties téléphoniques sont connectées en série, mais également pour les sorties parallèles ou dans une topologie mixte. Ce dispositif d'adaptation est conçu pour être connecté entre un téléphone (29) et une sortie téléphonique (21) et comprend un premier et un second filtre passe-bas (61), chaque filtre passe-bas étant connecté entre un terminal au niveau de la sortie téléphonique et un terminal téléphonique, et un filtre passe-haut connecté entre un premier et un second terminal de la sortie téléphonique. L'ordinateur peut être connecté dans n'importe quelle sortie téléphonique si ce dispositif d'adaptation est inséré dans les autres sorties. Un commutateur peut être utilisé sur le filtre passe-haut, ce qui permet une sélection automatique entre une connexion informatique et une connexion téléphonique dans la même sortie.
PCT/SE2005/001145 2004-07-12 2005-07-12 Appareil pour connexion de donnees haute vitesse WO2006006932A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0401843A SE527929C2 (sv) 2004-07-12 2004-07-12 Apparat för höghastighets dataförbindelse
SE0401843-8 2004-07-12

Publications (1)

Publication Number Publication Date
WO2006006932A1 true WO2006006932A1 (fr) 2006-01-19

Family

ID=32867228

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2005/001145 WO2006006932A1 (fr) 2004-07-12 2005-07-12 Appareil pour connexion de donnees haute vitesse

Country Status (2)

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SE (1) SE527929C2 (fr)
WO (1) WO2006006932A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984056A1 (fr) * 2011-12-13 2013-06-14 France Telecom Dispositif d'adaptation d'impedance pour une installation terminale cuivre raccordee a un reseau haut-debit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841841A (en) * 1995-03-16 1998-11-24 Telecommunications Research Laboratories Networking computers via shared use of voice telephone lines
EP0967736A1 (fr) * 1998-06-26 1999-12-29 Alcatel Dispositif de filtrage
WO2001080595A1 (fr) * 2000-04-18 2001-10-25 Serconet Ltd. Systeme de communication telephonique passant par une seule ligne telephonique
US6560319B1 (en) * 2001-01-16 2003-05-06 Serconet Ltd. Method and telephone outlet for allowing telephone and data equipment to be connected to a telephone line via a common connector
US6690677B1 (en) * 1999-07-20 2004-02-10 Serconet Ltd. Network for telephony and data communication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841841A (en) * 1995-03-16 1998-11-24 Telecommunications Research Laboratories Networking computers via shared use of voice telephone lines
EP0967736A1 (fr) * 1998-06-26 1999-12-29 Alcatel Dispositif de filtrage
US6690677B1 (en) * 1999-07-20 2004-02-10 Serconet Ltd. Network for telephony and data communication
WO2001080595A1 (fr) * 2000-04-18 2001-10-25 Serconet Ltd. Systeme de communication telephonique passant par une seule ligne telephonique
US6560319B1 (en) * 2001-01-16 2003-05-06 Serconet Ltd. Method and telephone outlet for allowing telephone and data equipment to be connected to a telephone line via a common connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2984056A1 (fr) * 2011-12-13 2013-06-14 France Telecom Dispositif d'adaptation d'impedance pour une installation terminale cuivre raccordee a un reseau haut-debit

Also Published As

Publication number Publication date
SE527929C2 (sv) 2006-07-11
SE0401843D0 (sv) 2004-07-12
SE0401843L (sv) 2006-01-13

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