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1. 发明专利

DE69915844T2 未知
公开(公告)号：DE69915844T2
公开(公告)日：2005-04-21
申请号：DE69915844
申请日：1999-08-24
申请人： INFINEON TECHNOLOGIES AG , ADTRAN INC
发明人： BLON THOMAS , GROEPL MARTIN , MOYAL MICHAEL , JOFFE M
IPC分类号： H04B3/20 , H04B3/23 , H04Q1/56

2. 发明专利

AU2017260108B2 Systems and methods for performing optical line terminal (OLT) failover switches in optical networks 未知
公开(公告)号：AU2017260108B2
公开(公告)日：2021-08-26
申请号：AU2017260108
申请日：2017-05-04
申请人： ADTRAN INC
发明人： CRESS JARED D , POLK CHARLES E , PADUR NAGARAJ
IPC分类号： H04B10/032 , H04J3/06 , H04J14/00 , H04Q11/00
摘要： A system for performing failover switches in an optical network, such as a time and wavelength division passive optical networks (TWDM PON) like NG-PON2, includes a backup optical line terminal (OLT) for backing up communications of a primary OLT. The backup OLT is configured to allocate small upstream time slots, referred to herein as "de minimis" time slots, to at least one optical network terminal (ONT) communicating with the primary OLT during normal operation. When a failure occurs that prevents communication between the ONT and the primary OLT, the ONT autonomously tunes to the upstream and downstream wavelength pairs of the backup OLT and begins to transmit data to the backup OLT in the de minimis time slot allocated to it. The presence of data in the de minimis time slot indicates the occurrence of a failover switch to the backup OLT, and the backup OLT then begins to allocate time slots to this ONT.

3. 发明专利

AU2018232981A1 Time-Division Duplexing Systems and Methods for Reducing Crosstalk Associated with Signals Communicated by Coordinated Dynamic Time Assignment Transceivers 未知
公开(公告)号：AU2018232981A1
公开(公告)日：2019-04-11
申请号：AU2018232981
申请日：2018-09-20
申请人： ADTRAN INC
发明人： KUIPERS MARTIN
IPC分类号： H04J3/00 , H04W74/00
摘要： A time-division duplexing (TDD) system reduces crosstalk associated with signals communicated by coordinated dynamic time assignment (cDTA) transceivers. In some embodiments, the TDD system has both cDTA transceivers and legacy transceivers. Based on the dynamic allocation of downstream and upstream timeslots for the cDTA transceivers, timeslots for the legacy transceivers are selectively muted in an effort to limit the amount of near-end crosstalk (NEXT) that occurs in the TDD system. Thus, subscriber lines coupled to both cDTA transceivers and legacy transceivers may be bound within the same binder without significantly increasing crosstalk to unacceptable levels. uJ uJ u U) CO)

4. 发明专利

AU2005209644C1 System and method for enabling two-pair E1 delivery with spectrally compatible signals 未知
公开(公告)号：AU2005209644C1
公开(公告)日：2006-03-30
申请号：AU2005209644
申请日：2005-09-09
申请人： ADTRAN INC
发明人： BARRETT ROBERT , KIMPE MARC
IPC分类号： H04L5/02 , H04B1/10

5. 发明专利

DE69915844D1 未知
公开(公告)号：DE69915844D1
公开(公告)日：2004-04-29
申请号：DE69915844
申请日：1999-08-24
申请人： INFINEON TECHNOLOGIES AG , ADTRAN INC
发明人： BLON THOMAS , GROEPL MARTIN , MOYAL MICHAEL , JOFFE M
IPC分类号： H04B3/20 , H04B3/23 , H04Q1/56

6. 发明专利

AU2017290904B2 Broadband access devices having a radio link 未知
公开(公告)号：AU2017290904B2
公开(公告)日：2021-10-07
申请号：AU2017290904
申请日：2017-07-03
申请人： ADTRAN INC
发明人： CRESS JARED , KELLY RONAN A , SCHNEIDER KEVIN W
IPC分类号： H04L12/24 , H04J14/02 , H04W4/00
摘要： A telecommunications device (102) includes a first transceiver, a second transceiver, and a state monitor (124). The first transceiver communicates over a broadband link. The second transceiver communicates over a radio link (126). The radio link (126) is a Low-Power Wide-Area Network (LPWAN) link. The state monitor includes one or more processes that monitor a state of the telecommunications device, and in response to the state of the telecommunications device being one of a plurality of pre-specified states, transmit, using the second transceiver, data specifying the state of the telecommunications device over the radio link. An exemplary environment (100) includes a Fiber to the Distribution Point (FttDP) unit (102) that connects users to a network (120) through a field equipment (116) over a broadband link. The environment (100) also includes a network operations center (NOC) (118) that monitors, controls, and/or manages the FttDP unit (102) via the network (120) and/or the LPWAN (122). The FttDP (102) data path uplink to the field equipment (116) may comprise an active Ethernet link, a PON link, or some other link. The FttDP unit (102) can communicate with the NOC (118) via network (120) through the field equipment (116). In addition, the FttDP unit (102) includes a LPWAN component that can communicate with the NOC (118) via the LPWAN (122). In some implementations, the FttDP unit (102) is a reverse powered device that obtains power from a customer premises (e.g., power feed unit 108). The FttDP unit (102) includes a state monitor (124) that monitors the reverse power supplied from the customer premises. In its normal operations, the FttDP unit (102) communicates with the NOC (118) or other endpoints over the broadband link when reverse power is supplied from the customer premises. When reverse power is unavailable, the state monitor (124) transmits status information of the FttDP unit (102) over the LPWAN connection to the NOC (118). In an embodiment, the telecommunications device (102) is an Optical Network Unit (ONU) on a Passive Optical Network (PON), and the ONU communicates with an Optical Line Termination (OLT) on the PON over the broadband link.

7. 发明专利

AU2018350919A1 Enhanced passive optical network 未知
公开(公告)号：AU2018350919A1
公开(公告)日：2020-04-02
申请号：AU2018350919
申请日：2018-10-16
申请人： ADTRAN INC
发明人： CRESS JARED
IPC分类号： H04J14/08 , H04B10/2507 , H04J3/00
摘要： Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for reducing jitter and latency in a PON. In one aspect, an optical network unit includes a downstream optical receiver configured to receive downstream traffic over a first wavelength; a first upstream optical transmitter having a first data rate; a second upstream optical transmitter having a second data rate that is higher than the first data rate; and a controller configured to direct upstream traffic to one of the first upstream optical transmitter or the second upstream optical transmitter depending on a traffic type of the traffic. Traffic having a control plane traffic type is directed to the first upstream optical transmitter and traffic having a data plane traffic type is directed to the second upstream optical transmitter.

8. 发明专利

AU2005209644A1 System and method for enabling two-pair E1 delivery with spectrally compatible signals 未知
公开(公告)号：AU2005209644A1
公开(公告)日：2006-03-30
申请号：AU2005209644
申请日：2005-09-09
申请人： ADTRAN INC
发明人： BARRETT ROBERT , KIMPE MARC
IPC分类号： H04L5/02 , H04B1/10

9. 发明专利

CA2229051A1 METHOD OF ENCODING AND SIGNAL PROCESSING TO EXTEND RANGE OF TRANSMISSION OVER REPEATERLESS TWO-WIRE TELEPHONE LINE 未知
公开(公告)号：CA2229051A1
公开(公告)日：1997-02-27
申请号：CA2229051
申请日：1996-08-16
申请人： ADTRAN INC
发明人： BURCH RICHARD A , SCHNEIDER KEVIN W , TURNER MICHAEL D , GOODSON RICHARD L
IPC分类号： H04L25/03 , H04L25/49 , H04L25/497 , H04Q11/04 , H04B1/66 , H04L12/52
摘要： The range of digital data communication services, such as a basic rate 2B1Q ISDN channel, to customer premises located beyond the industry standard achievable range of a two-wire loop can be extended by increasing the capacity of the ISDN line code from two information bits per symbol to three information bits per symbol, so as to reduce the effective symbol rate, which is error correction encoded to an effective 4B1H line code for defining a sixteen level PAM signal waveform, and employing enhanced low signal-to-noise ratio signal processing techniques in both the transmitter and receiver to accommodate the increased insertion loss of the two-wire line resulting from its extended length. Such enhanced low signal-to-noise ratio signal processing techniques include a Tomlinson precoder (25) in the transmitter, and an adaptive linear equalizer (53) and a module unit (55) in the receiver.

10. 发明专利

DE60141987D1 未知
公开(公告)号：DE60141987D1
公开(公告)日：2010-06-10
申请号：DE60141987
申请日：2001-03-02
申请人： ADTRAN INC
发明人： FAN JASON C , BANNAI VINAY K , JOGALEKAR PRASAD P
IPC分类号： H04L12/56 , H04L29/12 , H04L12/24 , H04L12/46 , H04L29/06
摘要： A dual addressing mode is described in which reduced-length addresses (referred to as short addresses) are substituted for standard addresses (referred to as long addresses) for traffic whose source or destination is internal to a given virtual network topology. The required length of short addresses used for a given virtual topology is dependent on the number of devices reachable within the topology. For a virtual topology with less than 256 addressable devices, for example, 8-bit short addresses can be used. When a node within the virtual network sees a packet with a short destination address in the header, the node understands the address to be within the virtual network and routes the packet accordingly. If a source address is a short address, the virtual network can identify the source within the virtual network. For packets originating in the virtual network whose destination is also in the virtual network, both the source and destination addresses can be short addresses. Thus, devices within a virtual network topology are addressable in a dual manner on the data link layer and/or network layer by traffic flowing internal to, or private to, the virtual network. Also described is a technique for automatically assigning source addresses to devices within the virtual network.

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