AR021773A1 - APPARATUS AND METHOD FOR COMMUNICATING DATA THROUGH A SYSTEM OF DERIVED, SUPERVISED CHANNELS - Google Patents

APPARATUS AND METHOD FOR COMMUNICATING DATA THROUGH A SYSTEM OF DERIVED, SUPERVISED CHANNELS

Info

Publication number
AR021773A1
AR021773A1 ARP990104119A AR021773A1 AR 021773 A1 AR021773 A1 AR 021773A1 AR P990104119 A ARP990104119 A AR P990104119A AR 021773 A1 AR021773 A1 AR 021773A1
Authority
AR
Argentina
Prior art keywords
data
signal
implemented
phase shift
communication signal
Prior art date
Application number
Other languages
Spanish (es)
Original Assignee
Numerex Invest Corp
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 Numerex Invest Corp filed Critical Numerex Invest Corp
Publication of AR021773A1 publication Critical patent/AR021773A1/en

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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems

Landscapes

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

Abstract

La senal de supervision de un sistema de reporte de datos de canal derivado se utiliza como una senal primaria de comunicacion de datos. La senal decomunicacion de datos se puede llevar a la práctica como un tono unico, o como tonos plural con una frecuencia (por ejemplo , de 200 Hz a 300 Hz) que puede sertransmitida por un equipo de red telefonica existente, incluyendo un equipo de transmision digital y un nivel atenuado. Como alternativa, la senal de reportede datos se puede llevar a la práctica a una frecuencia reducida (por ejemplo, a una frecuencia audible menor a 150 Hz) para que sea compatible con modemsexistentes de alta velocidad. Esta operacion puede llevarse a cabo en un modo simplex, o en un modo semiduplex o duplex, segun se prefiera. La senal dereporte de datos además se puede llevar a la práctica de modo tal que multiples aplicaciones pueden ser soportadas por una unica línea telefonica oagrupamiento de cuadro de conmutador, utilizando distintas senales a fin de evitar interferencia entre multiples unidades terminales de abonados asociados alsistema. El índice de datos que se puede alcanzar con la senal de reporte de datos se puede incrementar para transmitir mayor cantidad de datos aumentando lavelocidad de bitiosde la senal de comunicacion, utilizando preferentemente técnicas de modulacion tales como manipulacion por desplazamiento de fasecuaternaria (MPFQ) (quaternary phase shift keying) (QPSK), manipulacion por desplazamiento de 8 fases (8-phase shift keying) o modulacion discreta por tonosmultiples (discrete multi-tone (DTM)), para generar bitios multiples por baudio al tiempo que mantiene un índice de baudios de canal bajo.The supervision signal of a derived channel data reporting system is used as a primary data communication signal. The data communication signal can be implemented as a single tone, or as plural tones with a frequency (for example, from 200 Hz to 300 Hz) that can be transmitted by an existing telephone network equipment, including a transmission equipment. Digital and an attenuated level. Alternatively, the data reporting signal can be implemented at a reduced frequency (for example, at an audible frequency of less than 150 Hz) to be compatible with high-speed modems. This operation can be carried out in a simplex mode, or in a semi-duplex or duplex mode, as preferred. The data report signal can also be implemented in such a way that multiple applications can be supported by a single telephone line or switchboard grouping, using different signals in order to avoid interference between multiple subscriber terminal units associated with the system. The data rate that can be achieved with the data reporting signal can be increased to transmit more data by increasing the bit rate of the communication signal, preferably using modulation techniques such as quaternary phase shift manipulation (MPFQ). phase shift keying) (QPSK), 8-phase shift keying, or discrete multi-tone modulation (DTM), to generate multiple bits per baud while maintaining a baud rate Low channel

ARP990104119 1998-08-14 1999-08-18 APPARATUS AND METHOD FOR COMMUNICATING DATA THROUGH A SYSTEM OF DERIVED, SUPERVISED CHANNELS AR021773A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13541498A 1998-08-14 1998-08-14
US12625499P 1999-03-25 1999-03-25

Publications (1)

Publication Number Publication Date
AR021773A1 true AR021773A1 (en) 2002-08-07

Family

ID=26824444

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990104119 AR021773A1 (en) 1998-08-14 1999-08-18 APPARATUS AND METHOD FOR COMMUNICATING DATA THROUGH A SYSTEM OF DERIVED, SUPERVISED CHANNELS

Country Status (4)

Country Link
AR (1) AR021773A1 (en)
AU (1) AU5557399A (en)
TW (1) TW425807B (en)
WO (1) WO2000010317A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2817098B1 (en) * 2000-11-22 2006-08-04 France Telecom SECURE DISTANCE MONITORING SYSTEM OF A SITE
US8280046B2 (en) 2005-09-12 2012-10-02 Interdigital Technology Corporation Method and system for deriving an encryption key using joint randomness not shared by others
CN101288260A (en) 2005-01-27 2008-10-15 美商内数位科技公司 Method and system for deriving an encryption key using jointrandomness not shared by others
US7583726B2 (en) * 2005-09-20 2009-09-01 Tyco Safety Products Canada Ltd. Frequency shift keying (FSK) data communications using voice modem

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442320A (en) * 1981-12-04 1984-04-10 Base Ten Systems, Inc. Remote subscriber interaction system
US5822423A (en) * 1996-03-20 1998-10-13 Numerex Investment Corporation Apparatus and method for supervising derived channel communications

Also Published As

Publication number Publication date
WO2000010317A1 (en) 2000-02-24
WO2000010317A9 (en) 2000-05-18
AU5557399A (en) 2000-03-06
TW425807B (en) 2001-03-11

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