WO2001028215A1 - Prise de telephone multilignes numerique - Google Patents

Prise de telephone multilignes numerique Download PDF

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Publication number
WO2001028215A1
WO2001028215A1 PCT/US2000/028401 US0028401W WO0128215A1 WO 2001028215 A1 WO2001028215 A1 WO 2001028215A1 US 0028401 W US0028401 W US 0028401W WO 0128215 A1 WO0128215 A1 WO 0128215A1
Authority
WO
WIPO (PCT)
Prior art keywords
wireless communication
recited
telephone lines
communication link
lines simultaneously
Prior art date
Application number
PCT/US2000/028401
Other languages
English (en)
Inventor
Scott R. Bullock
Ryan Hoobler
Original Assignee
Phonex Broadband Corporation
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 Phonex Broadband Corporation filed Critical Phonex Broadband Corporation
Priority to AU14325/01A priority Critical patent/AU1432501A/en
Publication of WO2001028215A1 publication Critical patent/WO2001028215A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5437—Wired telephone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5429—Applications for powerline communications
    • H04B2203/5441—Wireless systems or telephone

Definitions

  • This invention relates to the telephone communication devices which make use of the power line communication channel. More specifically, this invention relates to multi-line communications over the AC power line. Description of Related Art. A variety of AC power line communications system has been proposed and are becoming more widely used. Also, telephone equipment adapted for use with multi-line telephone circuits are well known. However, typically AC power line communication systems are capable of communicating only one channel of information at a time. Because of the increasing use of such telephone devices as telephones, modems, fax machines, set top boxes, Web TV and alarm systems, the ability to distribute additional lines in a building pre-wired for two-lines at the most, is critical. For general background material, the reader is directed to the following United
  • U.S. Patent No. 4,788,710 describes a method and apparatus for selecting a single telephone line from among multiple line pairs at a location remote from the central office and isolating that line form the respective subscriber line to allow the performance of line tests on same.
  • U.S. Patent No. 4,817,132 describes a multiline access module for connection of a number of telephone lines to a station set.
  • U.S. Patent No. 4,945,473 describes a communications controller interface for emulating the previous system employing a plurality of line units in which data is transmitted and received.
  • U.S. Patent No. 4,998,275 describes a multi-line telephone communications system where the need for the hundreds of conductors that are necessary to connect each station to the control and switching equipment is eliminated.
  • U.S. Patent No. 5,090,052 describes an improved telephone system in which a plurality of telephone units connected to a common telephone line is directly connected to an outside telephone line.
  • U.S. Patent No. 5,119,366 describes a call processing method for distributing switching which substantially increases the percentage of call that are intra-module calls by distributing the members of trunk groups among a plurality of switching modules and biasing the processing of a call originating on one switching module such that an available trunk group member on that same switching module is assigned to the call if possible.
  • U.S. Patent No. 5,159,626 describes an answering machine that is coupled to a multi-line switching system which in turn is coupled to a plurality of incoming telephone lines in parallel with the telephone equipment or the like which is also connected to the incoming telephone lines.
  • U.S. Patent No. 5,200,996 describes a station controller for use with a centrix exchange in which the controller provides sampling signal control for the lamps of telephone stations forming multi-station pick-up groups and wherein the controller further provides cable pair information for use in establishing and updating an equipment port/cable pair/telephone station correlation table in the centrex exchange.
  • U.S. Patent No. 5,214,691 describes a virtual private line key telephone system, that includes a console having a plurality of line keys each associated with a party that can be reached via a switched trunk line.
  • U.S. Patent No. 5,255,264 describes a communication switching system with distributed control processing, that includes a digital switching network having a modular array of intelligent digital switching elements.
  • U.S. Patent No. 5,384,773 describes a multi-media switching apparatus for performing digital, analog, and/or optical communications amongst multiple nodes over switching networks.
  • U.S. Patent No. 5,550,905 describes a method and apparatus for delivering calls and caller identification information to multi-line users.
  • U.S. Patent No. 5,555,258 describes a wireless telephone subsystem for coupling line type telephone equipment to the public switched telephone network.
  • U.S. Patent No. 5,592.538 describes a telecommunication device that permits mixed voice communication and data communication during a single telephone call.
  • U.S. Patent No. 5,692,031 describes a method for configuring a telephone base station having base station channels that are coupled to a public switched telephone network via subscriber channels.
  • U.S. Patent No. 5,721,762 describes a system and method for using the brief time intervals between cellular telephone calls on a primary cellular network to transmit and receive data over a second data-only network.
  • U.S. Patent No. 5,727,055 describes a system for distributing electronic information signals throughout a structure, particularly a residential dwelling, which adapts a plurality of electronic information signals into a signal, which can be received by one or more information utilizing devices located throughout a structure.
  • U.S. Patent No. 5,761 ,294 describes a method and system of enabling incoming and outgoing call capability for a digital telephone that is limited to analog transmissions that includes providing a converter that locally support the protocol of the digital telephone.
  • U.S. Patent No. 5,805,582 describes a wireless telephone subsystem for coupling line type telephony equipment to the public switched telephone network.
  • U.S. Patent No. 5,809,431 describes a local multi-point distribution system having a head end coupled to a plurality of base stations with each base station constituting a cell.
  • U.S. Patent No. 5,841 ,854 describes a system and method for automatic call distribution targeting users in workgroups wherein the users utilize either wired or wireless communications tools.
  • U.S. Patent No. 5,848,053 describes a method or apparatus for offering multiple switch access to selected lines and trunks of a multiple telecommunications switch complex.
  • U.S. Patent No. 5,859,596 describes a communications system having a plurality of monitoring devices connected to respective pieces of switchyard equipment and associated with a common communication network.
  • U.S. Patent Nos. 5,883,944 and 5,887,054 describe a distributed processing telephone system for providing "plug-and-play" capability.
  • U.S. Patent No. 5,901,205 describes an adaptive voice and data bandwidth management system that is implemented in a subscriber loop to permit higher data rates and adaptive allocation of this increased capacity between multiple applications.
  • U.S. Patent No. 5,911,123 describes a system and method for supporting digital communications for a single-premises wireline digital telephone that includes converting between a first signaling format that is compatible with conventional bidirectional wireline telecommunications and a second signaling format that is compatible with bidirectional wireless telecommunications.
  • U.S. Patent No. 5,925,101 describes a telecommunications system that provides telephone functions to be accessed through a client computer system.
  • U.S. Patent No. 5,930,258 describes an electric data system that allows unified access to many currently available information provider services, and that gives the information provider services a way to access potential users without the requirement that they have their own infrastructure.
  • U.S. Patent No. 5,930,727 describes a method and apparatus that allows a multi-line telephone user in a cellular network to notify a fixed cellular terminal supporting both analog and digital voice channels and/or its controller to request an analog channel for an incoming or outgoing modem, prior to the call.
  • this invention provides a means of providing telephone access for communication devices, such as telephones, modem, fax machines, set-top boxes, and the like, for multiple lines in buildings or other structures where wired telephone lines are either limited or unavailable. Therefore, it is the general object of this invention to provide a digital multiline telephone jack which is able to transfer multiple telephone lines simultaneously using the AC power line as a communication channel.
  • a further object of this invention is to provide a digital multi-line telephone jack that is adapted to work with standard telephone, modem, fax machines, set-top boxes and the like.
  • Another object of this invention is to provide a digital multi-line telephone jack that uses a base unit to sample analog signals coming from the central office or other source, to receive, modify or reformat received digital data and to transmit the received analog or digital data to an extension unit, where the signals are detected, demodulated, and separated into the different multiple lines for reception by multiple extension units.
  • a still further object of this invention is to provide a digital multi-line telephone jack that has the ability to transfer and distribute multiple telephony signals to telephone connection devices from a wide variety of sources, including: a central office, fixed wireless source, cable, fiber optics, satellite antennas, or like devices.
  • Figure 1 is a top-level block diagram of the digital multi-line telephony jack of this invention.
  • FIG. 2 is a detailed block diagram of the preferred base unit of this invention.
  • Figure 3 is a detailed block diagram of the preferred extension unit of this invention.
  • Figure 4a is a detailed block diagram of the single channel base unit of this invention.
  • FIG. 4b is a detailed block diagram of the single channel extension unit of this invention. Detailed Description of the Invention
  • This invention is a digital multi-line telephone jack adapted specifically to be able to transfer multiple phone lines over the AC power line carrier, or alternatively over an over-the-air RF channel, simultaneously.
  • this invention uses a base unit to sample analog signals originating from a central office, cable, fixed wireless, satellite, fiber optic, or other telephony source to a residence or other building having a limited amount of direct wired telephone lines, thereby digitizing the received signals. If the signal received by the base unit is already digital, the base unit receives, modifies, and/or reformats the received digital signal as necessary to be compatible with the digital data link.
  • the digital and digitized signals are formatted and arranged in a time division multiple access (TDMA), frequency division multiple access (FDMA), or code division orthogonal frequency division multiplexing (OFDM), modulation scheme to allow the multiple lines to be sent to the extension unit and the end user.
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDM orthogonal frequency division multiplexing
  • the modulated digital data link transfers, via a power line carrier interface and AC power lines, the digital data to the extension unit, where it is detected, demodulated, and separated into each of the different multiple lines for use with and by the multiple customer premise equipment (CPE).
  • CPE customer premise equipment
  • a return path is provided, whereby the extension unit samples signals received from the multiple CPE, reformats and combines them, using time division multiple access (TDMA), frequency division multiple access (FDMA), or code division multiple access (CDMA), or a combination or derivative or this modulation techniques, such as orthogonal frequency division multiplexing (OFDM), to permit the multiple communication lines to be sent back to the base unit, across the AC power line carrier channel.
  • the base unit detects and separates the signals received from the extension unit into multiple lines.
  • the base unit then sends the detected received signals to the external signal source or destination.
  • This external signal source or destination may be selected from a wide variety of sources, including but not limited to a central office (CO), cable, fixed wireless, satellite, fiber optics, or any other means to send telephony type signals.
  • CO central office
  • the selected RF carrier signal can be any radio signal, available for this purpose with the preferred system using the 2 to 10 MHz band of power line carriers, the 900 MHz ISM band or the 2.4 GHz ISM band for use in the United States. In other areas, alternative frequency bands may be substituted, as necessary for International regulations, without departing from the concept of this invention.
  • FIG. 1 shows the top-level block diagram of the preferred digital multi-line telephony jack of this invention.
  • External signal sources 101 including but not limited to a central office (CO), cable, fixed wireless, satellite, fiber optics and/or like methods of sending telephony type signals, are connected to the base unit 102.
  • the base unit 102 interfaces with the multiple lines from the external devices 101 and provides the required circuitry to communicate with the external devices 101 , as well as modulating and demodulating data, and multiplexing and demultiplexing the multiple signal lines so that only one signal is passed between the power line carrier (PLC) interface or RF conversion circuit 103 and the base unit 102.
  • PLC interface or RF conversion circuit 103 provides the required up/down frequency conversions as well as the interface to the AC power line for the PLC data link
  • the extension unit 107 is connected to a PLC interface / RF converter 106 to provide the up/down frequency conversions as well as the interfaces to the AC power line connections 105b, for a PLC data link 113, or the antenna 1 11 for an RF data link 1 12.
  • the RF data link 1 12 makes use of the 900 MHz carrier frequency. Alternative RF frequencies can be substituted without departing from the concept of this invention.
  • the extension unit 107 of this invention interfaces with the multiple lines received from the multiple telephone lines, originating from one or more telephones 108, 109 and/or other telephone equipment devices 1 10.
  • Such other telephone equipment devices include but are not limited to computer modems, fax machines, and the like.
  • the telephones 108, 109 and other telephone equipment devices are customer premise equipment (CPE).
  • the extension unit 107 also provides modulation/demodulation and multiplexing/demultiplexing circuitry for selecting among the multiple lines so that only one signal is passed between the PLC interface 105a,b and 113, or the RF communication channel 104, 111 , 112, thereby providing the necessary channel between the extension unit 107 and the base unit 102.
  • FIG. 2 shows a detailed block diagram of the preferred base unit 102 of the digital multi-line telephony jack of this invention.
  • the external signal sources 101 including signals from a central office, cable, fiber optics, fixed wireless, satellite, and the like, are connected to dedicated central office line interface circuits (COLIC) 202a-n.
  • COLIC circuits 202a-n provide the necessary electrical interface to the external signals 101.
  • the multiple lines from the COLIC circuits 202a-n are connected to multiple line interface circuits 203a-n where the signals are formatted and processed.
  • FIG. 3 shows the detailed block diagram of the preferred extension unit 107 of this invention. Signals are received from the base unit 102 either from the PLC channel 1 13, via the outlet 105b, or the RF channel 112, via the extension antenna 1 1 1.
  • the PLC interface or RF Converter 106 down converts the signal and sends it to the multiple access modulator/demodulator 304, where the signal is demodulated and separated into multiple lines. Each multiple line is sent to a line interface circuit
  • serial line interface circuit SLIC
  • the SLIC's 306a-n interface each individual signal with a CPE 108, 109, 110.
  • the signal path from the CPE 108, 109, 110 through the extension unit 107 to the base unit 102 to the external signals 101 goes through the above components in a like manner, only in the reverse order.
  • Figure 4a provides the details of a single channel of the base unit 102 of the digital multi-line telephony jack of this invention.
  • the central office line interface circuit (COLIC) 401 provides the appropriate signal to the central office, or other external signal source 101.
  • the COLIC 401 also sends and receives data from the A/D and D/A converters 402. If the data is already digital, then the A/D and D/A converters 402 are not required and the data is transferred to or received directly from the processor 403.
  • the processor 403 is preferably a digital device, and may be selected from, but not limited to, a Complex Programmable Logic Device (CPLD); a Field Programmable Gate Array (FPGA); a Digital Signal Processor (DSP); and/or a micro-controller, as well as other standard digital devices.
  • An RF modulator may also be incorporated into the processor 403.
  • a sampling / bit synchronizer 404 receives the digital data from and is preferably controlled by the processor 403. Alternatively, the sampling / bit synchronizer 404 may be incorporated into the design of the processor 403. This sampling / bit synchronizer 404 serves to detect the beginning of the data packet and synchronizes the sample clock in the middle of the data bits of the packet.
  • the up/down converter 405 up converts the transmitted signal to the RF carrier frequency while down converting the received RF carrier to a frequency that the processor 403 can manage. If the processor 403 does not generate the RF modulation then the up/down converter 405 receives a bit stream from the processor 403 and modulates the carrier frequency while down converting the received signal to the base-band for the sampling / bit synchronizer 404.
  • the RF modulation can be selected from any appropriate modulation scheme, including but not limited to FSK, BPSK, QPSK, DSK and the like.
  • Figure 4b provides the details of a single channel of the extension unit 107 of the digital multi-line telephony jack of this invention.
  • the subscriber line interface circuit (SLIC) 406 provides the appropriate signal to the CPE 108, 109, 110.
  • the SLIC 406 also sends and receives data from the A/D and D/A converters 407. If the data is already digital, then the A/D and D/A converters 407 are not required and the data is transferred to or received directly from the processor 408.
  • the processor 408 is preferably a digital device, and may be selected from, but not limited to, a Complex Programmable Logic Device (CPLD); a Field Programmable Gate Array (FPGA); a Digital Signal Processor (DSP); and/or a micro-controller, as well as other standard digital devices.
  • An RF modulator may also be incorporated into the processor 408.
  • a sampling / bit synchronizer 409 receives the digital data from and is preferably controlled by the processor 408. Alternatively, the sampling / bit synchronizer 409 may be incorporated into the design of the processor 408. This sampling / bit synchronizer 408 serves to detect the beginning of the data packet and synchronizes the sample clock in the middle of the data bits of the packet. If RF modulation is done in the processor 408, the up/down converter 410 up converts the transmitted signal to the RF carrier frequency while down converting the received RF carrier to a frequency that the processor 408 can manage.
  • the up/down converter 410 receives a bit stream from the processor 408 and modulates the carrier frequency while down converting the received signal to the base-band for the sampling / bit synchronizer 409.
  • the RF modulation can be selected from any appropriate modulation scheme, including but not limited to FSK, BPSK, QPSK, DSK and the like.
  • the preferred manner of handling multiple telephone lines, both in the base unit 102 and the extension unit 107, is TDMA.
  • a start bit synchronizes the sampling clock. Data for each of the multiple telephone lines follows the start bit. Off-hook signaling may be interleaved in the bit stream. In this manner the command executed as shown below, is commandl concatenated with command2, up to command#n.
  • Preferred packet structure is commandl concatenated with command2, up to command#n.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Cette invention a trait à un système ainsi qu'à un dispositif permettant de fournir simultanément un accès téléphonique multilignes dans une résidence ou un bâtiment dont les lignes téléphoniques spécialisées sont inadaptées. On utilise, dans le cadre de cette invention, une ligne de transport de puissance et/ou un canal de communication RF entre une unité de base (102) en connexion électrique avec une source/destination de signal externe (101) et une unité additionnelle (107) en connexion électrique avec un ou plusieurs postes téléphoniques (108, 109, 110). Cette invention est notamment en relation avec la croissance des besoins en matière de lignes téléphoniques supplémentaires dans des bâtiments déjà existant où les lignes téléphoniques spécialisées sont limitées. Il est possible, grâce à cette invention, de distribuer plusieurs lignes sur un seul canal de communication, par échantillonnage numérisation et modulation de chaque signal sur une seule porteuse de fréquence, convenant à une transmission sur un canal de ligne de transport de puissance c.a. (113) ou sur un canal RF par la voie des ondes (112). Cette invention innove également en ce sens qu'elle offre un procédé économique permettant d'obtenir un rapport signal sur bruit amélioré et qu'elle assure la compatibilité entre des lignes de transport de puissance classiques déjà établies et des fréquences RF.
PCT/US2000/028401 1999-10-13 2000-10-13 Prise de telephone multilignes numerique WO2001028215A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14325/01A AU1432501A (en) 1999-10-13 2000-10-13 Digital multi-line telephone jack

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41671499A 1999-10-13 1999-10-13
US09/416,714 1999-10-13

Publications (1)

Publication Number Publication Date
WO2001028215A1 true WO2001028215A1 (fr) 2001-04-19

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PCT/US2000/028401 WO2001028215A1 (fr) 1999-10-13 2000-10-13 Prise de telephone multilignes numerique

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WO (1) WO2001028215A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003005691A1 (fr) * 2001-07-05 2003-01-16 Serconet Ltd. Prise de telephone a adaptateur de telephonie numerique, et reseau utilisant cette prise
US7656904B2 (en) 2003-03-13 2010-02-02 Mosaid Technologies Incorporated Telephone system having multiple distinct sources and accessories therefor
US8559422B2 (en) 2000-04-18 2013-10-15 Mosaid Technologies Incorporated Telephone communication system over a single telephone line
US8855277B2 (en) 2000-03-20 2014-10-07 Conversant Intellectual Property Managment Incorporated Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets
US8867523B2 (en) 1998-07-28 2014-10-21 Conversant Intellectual Property Management Incorporated Local area network of serial intelligent cells
US9001921B1 (en) 2004-02-18 2015-04-07 Marvell International Ltd. Circuits, architectures, methods, algorithms, software, and systems for improving the reliability of data communications having time-dependent fluctuations
US10986164B2 (en) 2004-01-13 2021-04-20 May Patents Ltd. Information device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210788A (en) * 1986-10-22 1993-05-11 Nilssen Ole K Telephone instrument and distribution system
US5533101A (en) * 1993-07-28 1996-07-02 Rohm Co. Ltd. Extension phone type cordless telephone set
US6055435A (en) * 1997-10-16 2000-04-25 Phonex Corporation Wireless telephone connection surge suppressor
US6107912A (en) * 1997-12-08 2000-08-22 Phonex Corporation Wireless modem jack
US6128510A (en) * 1996-01-23 2000-10-03 International Business Machines Corporation Cordless connection for a data/fax modem

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210788A (en) * 1986-10-22 1993-05-11 Nilssen Ole K Telephone instrument and distribution system
US5533101A (en) * 1993-07-28 1996-07-02 Rohm Co. Ltd. Extension phone type cordless telephone set
US6128510A (en) * 1996-01-23 2000-10-03 International Business Machines Corporation Cordless connection for a data/fax modem
US6055435A (en) * 1997-10-16 2000-04-25 Phonex Corporation Wireless telephone connection surge suppressor
US6107912A (en) * 1997-12-08 2000-08-22 Phonex Corporation Wireless modem jack

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8908673B2 (en) 1998-07-28 2014-12-09 Conversant Intellectual Property Management Incorporated Local area network of serial intelligent cells
US8885660B2 (en) 1998-07-28 2014-11-11 Conversant Intellectual Property Management Incorporated Local area network of serial intelligent cells
US8885659B2 (en) 1998-07-28 2014-11-11 Conversant Intellectual Property Management Incorporated Local area network of serial intelligent cells
US8867523B2 (en) 1998-07-28 2014-10-21 Conversant Intellectual Property Management Incorporated Local area network of serial intelligent cells
US8855277B2 (en) 2000-03-20 2014-10-07 Conversant Intellectual Property Managment Incorporated Telephone outlet for implementing a local area network over telephone lines and a local area network using such outlets
US8559422B2 (en) 2000-04-18 2013-10-15 Mosaid Technologies Incorporated Telephone communication system over a single telephone line
US8472593B2 (en) 2001-07-05 2013-06-25 Mosaid Technologies Incorporated Telephone outlet with packet telephony adaptor, and a network using same
KR100913851B1 (ko) * 2001-07-05 2009-08-26 모사이드 테크놀로지스 인코퍼레이티드 패킷 전화 통신 어댑터를 갖는 전화 인출구 및 이를 이용한네트워크
US7769030B2 (en) 2001-07-05 2010-08-03 Mosaid Technologies Incorporated Telephone outlet with packet telephony adapter, and a network using same
CN100518227C (zh) * 2001-07-05 2009-07-22 塞尔科尼特有限公司 带有分组电话适配器的电话出口和使用这种分组电话适配器的网络
WO2003005691A1 (fr) * 2001-07-05 2003-01-16 Serconet Ltd. Prise de telephone a adaptateur de telephonie numerique, et reseau utilisant cette prise
KR100968012B1 (ko) 2001-07-05 2010-07-07 모사이드 테크놀로지스 인코퍼레이티드 패킷 전화 통신 어댑터를 갖는 전화 인출구 및 이를 이용한 네트워크
US8761186B2 (en) 2001-07-05 2014-06-24 Conversant Intellectual Property Management Incorporated Telephone outlet with packet telephony adapter, and a network using same
US7680255B2 (en) 2001-07-05 2010-03-16 Mosaid Technologies Incorporated Telephone outlet with packet telephony adaptor, and a network using same
US7738453B2 (en) 2003-03-13 2010-06-15 Mosaid Technologies Incorporated Telephone system having multiple sources and accessories therefor
US7656904B2 (en) 2003-03-13 2010-02-02 Mosaid Technologies Incorporated Telephone system having multiple distinct sources and accessories therefor
US7746905B2 (en) 2003-03-13 2010-06-29 Mosaid Technologies Incorporated Private telephone network connected to more than one public network
US8238328B2 (en) 2003-03-13 2012-08-07 Mosaid Technologies Incorporated Telephone system having multiple distinct sources and accessories therefor
US10986164B2 (en) 2004-01-13 2021-04-20 May Patents Ltd. Information device
US11095708B2 (en) 2004-01-13 2021-08-17 May Patents Ltd. Information device
US9001921B1 (en) 2004-02-18 2015-04-07 Marvell International Ltd. Circuits, architectures, methods, algorithms, software, and systems for improving the reliability of data communications having time-dependent fluctuations

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