Passive distributed filter system and method

Details Passive distributed filter system and method Passive distributed filter system and method

1997-02-26

1998-12-08

Zele, Krista

Telephonic communications

Subscriber line or transmission line interface

379 9309, H04M 100, H04M 1100

Patent

active

058481508

ABSTRACT:
A plurality of passive distributed POTS filters (DPF) are associated with a respective plurality of POTS communications devices and decouple a POTS channel from a telephone connection, while permitting and not interfering with a second communications channel (e.g., DSL, ADSL, SDSL, RADSL, VADSL, etc.) on the telephone connection that is utilized by a modem. In architecture, the DPF system includes a plurality of POTS communications devices, such as telephones, and a plurality of the DPFs corresponding respectively with and connecting each of the POTS communications devices to the telephone connection. Each of the DPFs comprise an automatic control mechanism and a POTS filter. The automatic control mechanism is configured to isolate the POTS filter when a respective POTS communications device is on-hook. Each DPF is configured to permit POTS communications over a POTS channel on the telephone connection with the respective POTS communications device when the POTS communications device is off-hook. Furthermore, a second communications device, such as a DSL (e.g., ADSL, SDSL, RADSL, VADSL, etc.) communications device, is connected to the telephone connection and communicates signals over a second channel. The POTS and second channel are communicated over the telephone connection concurrently without appreciable interference.

REFERENCES:
patent: 3810033 (1974-05-01), Grace
patent: 4302629 (1981-11-01), Foulkes et al.
patent: 4330687 (1982-05-01), Foulkes et al.
patent: 4593389 (1986-06-01), Wurzburg et al.
patent: 4660218 (1987-04-01), Hashimoto
patent: 4825465 (1989-04-01), Ryan
patent: 4853949 (1989-08-01), Schorr et al.
patent: 4987586 (1991-01-01), Gross et al.
patent: 5151972 (1992-09-01), Lorenz et al.
patent: 5191305 (1993-03-01), Frost et al.
patent: 5237591 (1993-08-01), Javitt et al.
patent: 5263081 (1993-11-01), Nightingale et al.
patent: 5289538 (1994-02-01), Lauer et al.
patent: 5347566 (1994-09-01), Law et al.
patent: 5440335 (1995-08-01), Beveridge
patent: 5448635 (1995-09-01), Beihl et al.
patent: 5497417 (1996-03-01), Brahms et al.
patent: 5502760 (1996-03-01), Gilbert et al.
patent: 5566239 (1996-10-01), Garcia et al.
patent: 5623543 (1997-04-01), Cook
patent: 5625677 (1997-04-01), Feiertag et al.
patent: 5627081 (1997-05-01), Biran et al.
patent: 5627885 (1997-05-01), Paneth et al.
patent: 5757803 (1998-05-01), Russell et al.
ADSL and VADSL Splitter Design and Telephony Performance, Cook, et al., IEEE Jorunal on Selected Areas in Communication, vol. 13, No. 3, Dec. 1995 .

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