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Apparatus and Method for Improving the Coexistence of ADSL and HPNA

IP.com Disclosure Number: IPCOM000125319D
Published in the IP.com Journal: Volume 5 Issue 6A (2005-06-20)
Included in the Prior Art Database: 2005-Jun-20
Document File: 2 page(s) / 434K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

The following idea is about co-existence Filters for ADSL (Asymmetric Digital Subscriber Line) and HPNA (home networking standard developed by the Home Phoneline Networking Alliance) in home networks. An in-line multiplexer (essentially a low pass filter and high pass filter in parallel) filter is placed between each HPNA interface (on a PC card, USB adapter, and ADSL modem) and the POTS (Plane Old Telephone Service) wall jack. The existing POTS in-line low pass filters are not necessary (but can be used on lines with only a POTS phone and no HPNA). This essentially means that the in-line low-pass micro-filters are replaced with in-line multiplexer micro-filters and are simply moved from the phone to the HPNA function.

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Apparatus and Method for Improving the Coexistence of ADSL and HPNA

Idea: Wayne Thomas Daniel, US-Dallas, Texas

The following idea is about co-existence Filters for ADSL (Asymmetric Digital Subscriber Line) and HPNA (home networking standard developed by the Home Phoneline Networking Alliance) in home networks.

An in-line multiplexer (essentially a low pass filter and high pass filter in parallel) filter is placed between each HPNA interface (on a PC card, USB adapter, and ADSL modem) and the POTS (Plane Old Telephone Service) wall jack. The existing POTS in-line low pass filters are not necessary (but can be used on lines with only a POTS phone and no HPNA). This essentially means that the in-line low-pass micro-filters are replaced with in-line multiplexer micro-filters and are simply moved from the phone to the HPNA function.

Old assembly (Fig. 1): POTS Wiring HPNA NIC Card (Network Interface Card) --- In-line low-pass filter --- POTS Phone

New assembly (Fig. 2): POTS Wiring --- In-line multiplexer filter --- HPNA NIC Card --- POTS Phone

Also, place a high pass filter between the POTS connector and HPNA interface of the ADSL-HPNA modem. The low pass filter is not necessary because POTS frequencies are not needed to be passed to the ADSL modems HPNA function.

Fig. 1:

© SIEMENS AG 2005 file: 2005J06967.doc page: 1

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Fig. 2:

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