Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 12 - Data switching networks
Patents for H04L 12 - Data switching networks (448,999)
04/1999
04/29/1999CA2306704A1 An apparatus and method for controlling access to a service over a communications system
04/29/1999CA2305173A1 Mobile communications system and a transcoder unit
04/28/1999EP0912070A1 Network system for routing calls
04/28/1999EP0912065A2 Method and apparatus for re-timing a digital signal
04/28/1999EP0912056A2 Synchronization in multimedia collaboration system
04/28/1999EP0912055A2 Multimedia collaboration system
04/28/1999EP0912051A2 Method for using audio and video devices and audio and video device system
04/28/1999EP0912036A2 Data Communication apparatus and method
04/28/1999EP0912028A2 Mechanism for dispatching packets via a telecommunications network
04/28/1999EP0912027A2 Inter-working function selection system in a network
04/28/1999EP0912026A2 Registration scheme for network
04/28/1999EP0912018A1 Method of flow control inside an ATM switch having a distributed architecture
04/28/1999EP0912017A2 In sequence delivery of messages
04/28/1999EP0912016A2 Method for access control in a multiple access system for communications networks
04/28/1999EP0912015A2 Method for overload control in a multiple access system for communications networks
04/28/1999EP0912014A2 A method, apparatus and program product for accessing a management information service provided by a server
04/28/1999EP0912013A1 Method for providing secure access to an application of a networked system
04/28/1999EP0912012A2 Accounting system in a network
04/28/1999EP0912004A2 Communication method between devices having different sampling rates and communication system employing the same
04/28/1999EP0911808A1 Speech interface in a home network environment
04/28/1999EP0911740A2 Bus station and bus system
04/28/1999EP0910926A1 Method and device for the approximative computation of the exponential mean of a sequence of coded numbers in floating point format
04/28/1999EP0910912A1 Method for detecting upstream congestion in an atm commutator with a switching system architecture and input memorisation
04/28/1999EP0910911A1 Method and device for measuring the proportion of an atm cell stream satisfying a determined criterion
04/28/1999EP0910910A1 Method for redirecting traffic on a communications network for conservation of network resources
04/28/1999EP0910909A2 Network architecture for broadband data communication over a shared medium
04/28/1999EP0910908A1 Method and system for characterizing terminations in a local area network
04/28/1999EP0886936A4 Internet telecommunications system
04/28/1999CN1215539A Method and apparatus for routing internet calls
04/28/1999CN1215524A Device for transmitting and processing group communications in the E-mail system
04/28/1999CN1215521A Systems and method for interfacing multiple electronic devices
04/28/1999CN1215519A Medium access control (MAC) protocol for wireless ATM
04/28/1999CN1215518A Remote proxy system and method
04/28/1999CN1215279A Method for transmitting data by using telephone switching network
04/28/1999CN1215276A Device and method for control work quality in data network
04/28/1999CN1215275A E-mail sending/receiving system and method and record medium recording said method
04/28/1999CN1215274A Route exchanger for transmission equipment
04/28/1999CN1215273A Transmission device in loop network
04/28/1999CN1215270A Image grouping communication system
04/28/1999CA2250580A1 Digital telecommunications system with a dect interface for fax and data applications
04/27/1999US5898931 Base station for a telecommunications system
04/27/1999US5898925 Method and arrangement for effecting transmission power control and/or handover of a mobile station assigned two or more time slots per frame in a TDMA telecommunications system
04/27/1999US5898904 Two-way wireless data network having a transmitter having a range greater than portions of the service areas
04/27/1999US5898901 Carrier-frequency transmission of digital return signals in burst mode
04/27/1999US5898876 Efficient arbitration within point-to-point ringlet-based computer systems
04/27/1999US5898839 System using signaling channel to transmit internet connection request to internet service provider server for initiating and internet session
04/27/1999US5898837 Method and apparatus for monitoring a dedicated communications medium in a switched data network
04/27/1999US5898827 Routing methods for a multinode SCI computer system
04/27/1999US5898826 Method and apparatus for deadlock-free routing around an unusable routing component in an N-dimensional network
04/27/1999US5898761 Communication server apparatus using digital signal switching and method
04/27/1999US5898733 Packet hopping system with sliding frequency, and transciever for the system
04/27/1999US5898692 Scalable bandwidth digital data switch
04/27/1999US5898690 Wireless communication equipment and communication system having automatic switching capability between relayed transmission/direct transmission
04/27/1999US5898689 Packet network interface
04/27/1999US5898688 ATM switch with integrated system bus
04/27/1999US5898687 Arbitration mechanism for a multicast logic engine of a switching fabric circuit
04/27/1999US5898686 Network bridge with multicast forwarding table
04/27/1999US5898679 Wireless relay with selective message repeat and method of operation thereof
04/27/1999US5898678 Method and apparatus for using synthetic preamable signals to awaken repeater
04/27/1999US5898676 Method, communication system and conference unit for carrying out conferences
04/27/1999US5898674 System and method for performing non-disruptive diagnostics through a frame relay circuit
04/27/1999US5898673 System and method for prevention of cell loss due to quality of service contracts in an ATM network
04/27/1999US5898671 Transmitter controlled flow control for buffer allocation in wide area ATM networks
04/27/1999US5898670 Bursty traffic multiplexing arrangement and method for shaping and multiplexing bursty input flows
04/27/1999US5898669 ATM traffic management device
04/27/1999US5898668 Method and system for increasing quality of service at or below a threshold cost
04/27/1999US5898162 Hand-held data capture system with interchangeable modules
04/27/1999US5897615 Speech packet transmission system
04/27/1999US5897613 Efficient transmission of voice silence intervals
04/27/1999US5897609 Multiple port protocol test apparatus and method thereof
04/24/1999CA2251484A1 Method, apparatus & program product for accessing alarm conditions from a server
04/22/1999WO1999020076A1 Method for safe transmission of a telecommunication system cells
04/22/1999WO1999020071A1 Data transfer between gran interworking units
04/22/1999WO1999020034A2 Network monitoring method for telecommunications network
04/22/1999WO1999020025A2 Method and apparatus for structured communication
04/22/1999WO1999020022A1 Virtual gateway system and method
04/22/1999WO1999020021A2 Speech transmission between terminals in different networks
04/22/1999WO1999020014A2 A system for transfer of data
04/22/1999WO1999019988A2 Method and system for network access over a low bandwidth link
04/22/1999WO1999019803A1 Integrated customer interface for web based communications network management
04/22/1999WO1999006916A3 Data bus device having means for the allocation of information after a bus reset
04/22/1999WO1999005814A3 E-mail firewall with stored key encryption/decryption
04/22/1999WO1999005794A3 Method for displaying fault information relating to peripheral elements
04/22/1999WO1999004347A3 Electronic message management system
04/22/1999WO1999000929A3 Method and computer system for coding a message
04/22/1999DE19818268A1 Data communication system
04/22/1999DE19748700A1 ATM cell processing module
04/22/1999DE19742681A1 GPRS-Teilnehmerauswahl von mehreren Internet-Dienstanbietern GPRS subscriber selection of multiple Internet service providers
04/22/1999DE19741770C1 Communication system for communication between accessory unit and appropriate terminal equipment, comprises switching center which has echo control unit and accessory unit having mechanisms for producing echo messages
04/22/1999CA2306411A1 Method and system for network access over a low bandwidth link
04/22/1999CA2306281A1 Method for safe transmission of a telecommunication system cells
04/22/1999CA2305154A1 Network monitoring method for telecommunications network
04/22/1999CA2304543A1 Integrated customer interface for web based communications network management
04/22/1999CA2221026A1 System and method for providing internet-based groupware application functionality
04/21/1999EP0910224A1 Apparatus and method for connection switching and control
04/21/1999EP0910217A1 Process for controlling access to a domestic network and device implementing the process
04/21/1999EP0910200A1 A device and method for controlling the quality of service in data networks
04/21/1999EP0910198A2 Mobility management system
04/21/1999EP0910196A1 Electronic mail transmission between a server and a modem
04/21/1999EP0910195A2 A network communication device including bonded ports for increased bandwidth
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