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| Number | Title | Issue Date |
| 7372864 | Reassembly of data fragments in fixed size buffers A reassembly and/or a segmentation function is spread across (i.e. partially performed in) each of two (or more) network processors, with use of buffers in a storage device to temporarily buffer data that is received in one or more ingress data units. In using the b... | 05/13/2008 |
| 7227462 | Extremely fast polling method for determining the presence of individual electric meters on a power line A “super-fast” polling method for electrical meters for outage detection. In response to a query, a large group of electric meters (M) all simultaneously transmit reply signals over an electrical distribution network using TWACS®. The signals are separated by a... | 06/05/2007 |
| 7202978 | Facsimile telecommunications system and method A system and method for facilitating facsimile transmissions has one or more store and forward facilities. The store and forward facilities include a computer for controlling operations and mass data storage equipment. Subscriber mailboxes are provided as part of th... | 04/10/2007 |
| 7191375 | Method and apparatus for signaling an error condition to an agent not expecting a completion A transmitting device and a receiving device are coupled via a high-speed serial interface within a computer system. The transmitting device transmits a packet for a request transaction to a receiving device. The receiving device checks for error conditions. If an e... | 03/13/2007 |
| 7176786 | Method of isolating data in a power line communications network The present invention provides isolation between a power line local area network and another network such as a power line wide area network. In one embodiment of the present invention, a filter device is installed on the power line supplying power to a structure in ... | 02/13/2007 |
| 7120240 | Method for auditory differentiation of forwarded phone calls The present invention is directed to the auditory differentiation among forwarded phone calls within a phone network, and in particular an advanced intelligent phone network. Unique distinctive forwarded ring alerts and distinctive forwarded call waiting alerts are ... | 10/10/2006 |
| 7116660 | Memory organization in a switching device A router for switching data packets from a source to a destination in a network in which the router includes a distributed memory. The distributed memory includes two or more memory banks. Each memory bank is used for storing uniform portions of a data packet receiv... | 10/03/2006 |
| 7106750 | System and method for interfacing a local communication device A system to interworking a call between a plurality of networks having different formats. The system has a GR-303 system, an integrated services digital network system, a service platform, and an asynchronous transfer mode system. The system has a signaling processo... | 09/12/2006 |
| 7072385 | Load coil and DSL repeater including same Systems and methods are disclosed for improving DSL performance, including ADSL and VDSL performance, over a local loop between a telephone company central office and a customer premises. In particular, a DSL repeater is coupled to the local loop and amplifies downs... | 07/04/2006 |
| 7058067 | Distributed interactive multimedia system architecture Various aspects of an interactive multimedia system and associated methods. In general, the multimedia system employs central and peripheral hubs that function to provide services to a plurality of clients of a call manager server, or manager subsystem. The hubs and... | 06/06/2006 |
| 7042351 | Data communication over a power line Data signals are communicated between a power line and a computer, wherein the power line provides power to the computer via a distribution transformer and the computer is in communication with a wireless communication path. A first data signal is communicated with ... | 05/09/2006 |
| 6977540 | High-speed isolated port A port isolator apparatus includes an optical isolator circuit that electrically isolates an input circuit from a high-speed output circuit. The input circuit uses a transistor to control the current flow of a data signal into the optical isolator. The optical isola... | 12/20/2005 |
| 6925514 | Multi-protocol bus system and method of operation thereof A multi-protocol bus system and a method of operating the same. In one embodiment, the multi-protocol bus system includes a plurality of protocol indicators associated with an address space, each of the plurality of protocol indicators associated with a segment of t... | 08/02/2005 |
| 6917136 | Synchronous machine design and manufacturing Synchronous motors according to the invention operate at higher efficiency, with lower cost, reduced mass and reduced cogging. Magnet dimensions are selected that reduce cogging forces to a negligible amount even though there are fewer slots than normal. Optionally,... | 07/12/2005 |
| 5257160 | Serial signal transmission device and control method for determining polarity A serial signal transmission device and a control method for determining polarity which can be used in various systems, for example, air conditioners, and a remote controller. The serial signal transmission device which carries out signal transmission bet... | 10/26/1993 |
| 4939509 | Data conferencing arrangement for stations having keyboards and displays, using a keyboard buffer and a screen buffer An arrangement for data conferencing either multiple computers (FIG. 1), or multiple terminals with a computer (FIG. 4), includes software (21;511) for communicating keystrokes from conference participants to an application program (22;550) that is the ob... | 07/03/1990 |
| 4835346 | Method and device for fast data transmission through a standard serial link A device for transmitting data between a transmitter provided with standard software adapted to a serial interface and a standard receiver provided with a serial interface is presented. The device includes a serial interface simulator which replaces the s... | 05/30/1989 |
| 4801934 | Method and apparatus for transmission of data with data reduction In a transmission network having a tree structure in which data is forwarded from the tree branches toward the trunk at periodic intervals, the data which is transmitted between the several network levels is transmitted in data blocks each having a status... | 01/31/1989 |
| 4786763 | Circuit arrangement for the transmission of data signals between subscriber terminals operating with different data transmission procedures A circuit for the transmission of data signals between subscriber terminals operating with different data transmission procedures is described. Data signals are transmitted between a subscriber terminal operating with a first transmission procedure and a ... | 11/22/1988 |
| 4760395 | Arrangement for communications between equipment belonging to different network architectures A communications network (K) provides the integration of at least two networks with different network architectures, (SNA, DCNA, DECNET). The communications network as such exhibits its own specific network architecture (ICNA) independent of the aforement... | 07/26/1988 |
| 4700020 | Method and circuit arrangement for the transmission of data signals between control devices connected to one another via a loop system A data transmission system has a number of control devices connected via a transmission loop. Each control device includes signal processing circuitry which compiles data signals to be transmitted in the form of a data signal block. The signal processing ... | 10/13/1987 |
| 4700021 | Circuit arrangement for the transmission of data signals between control devices connected to one another via a loop system A system for transmitting data signals between control devices connected to each other by a transmission loop operated directionally dependent has a number of such control devices connected to the loop, with each control device including a signal compiler... | 10/13/1987 |
| 4667320 | Space-division switching network for high data rate signals A multi-stage space-division switching network comprises groups of regenerators (RE1 to RE16) connected to input lines and to output lines of the switching network, it further includes groups of regenerators (RS1 to RS16) connected to a first end of inter... | 05/19/1987 |
| 4602252 | Method and device for data communication A method for data communication usable for a system having a common transmission line, a plurality of transceivers connected to the common transmission line, and a data processing equipment connected to each of the transceivers, the system being arranged ... | 07/22/1986 |
| 4570565 | Method and circuit arrangement for providing date and time information in a telex and data switching system Date and time information are provided in a telex and data switching system (EDS), which is connected with subscriber stations (Ttx) that are located in different time zones (ZZ1 to ZZ4). The telex and data switching system makes available a number of cur... | 02/18/1986 |
| 4528658 | Telecommunication system with a multiplicity of modular units interchanging digital messages A telecommunication system, e.g. a telephone switching exchange, comprises a multiplicity of substantially identical modular units each including a microprocessor controlling the emission of departing digital messages by a transmitting section and handlin... | 07/09/1985 |
| 4501930 | Teleprinter A teleprinter has a printer for printing received or manually entered characters in a row-by-row fashion. The characters of a row are initially stored, and only following the occurrence of a predetermined control signal, for example a "carriage return" si... | 02/26/1985 |
| 4497976 | Method for emitting additional information in conjunction with message signals to be transmitted over a data switching center Additional information is transmitted, in conjunction with message signals which are transmitted over a data switching center belonging to a public switched network. The data switching center is connected to teleprinter subscriber stations and teletex sub... | 02/05/1985 |
| 4479195 | Data conference system A communications network having a multiport data conference system is disclosed. The data conference system includes a multilevel processor arrangement with the lower level port processors communicating directly with data terminals and higher level proces... | 10/23/1984 |
| 4477695 | Microprocessor operated telecommunications interface for a terminal of an automatic teletypewriter switching service A microprocessor operated telecommunications interface for connection to a telecommunications line to provide transmission of data between a dedicated terminal of an automatic teletypewriter switching service of the type operating in one code and a data b... | 10/16/1984 |
| 4476347 | Method and circuit arrangement for transmitting communication signals between switching centers of first and second switching networks operating with different transmission procedures A method and a circuit arrangement are provided for the transmission of communication signals over switching centers of a first switching network and of a second switching network operating with different transmission procedures. The transmission is execu... | 10/09/1984 |
| 4466000 | Data communication system In a data communication system comprising a plurality of data stations which are interconnected by a common communication medium, simultaneously occurring prospective users of the communication medium undergo an arbitration to determine which one will gai... | 08/14/1984 |
| 4463351 | System for providing several data terminals with access to a digital telephone line A line loop designed for the transmission of digitized voice samples as well as data words between an exchange and several subscriber terminals, not all of them necessarily equipped for voice communication, is connected through a modem to a bus with paral... | 07/31/1984 |
| 4454383 | Asynchronous data transmission method and circuitry A method and circuitry are disclosed for asynchronously transmitting binary data over a communication pair without the use of start or stop bits. During a non-data transmitting state a quiescent differential voltage, which is intermediate to the binary da... | 06/12/1984 |
| 4451697 | Method for establishing connections between subscriber stations which operate with different transmission procedures by way of signal converters including busy-free control A method is disclosed for establishing connections from subscriber stations or transmission lines connected to a data exchange system to signal converters. The data exchange system receives information concerning the free state or busy state of the signal... | 05/29/1984 |
| 4431864 | Communications system input-output converter An input-output converter permits the integration of terminals and transmit and receive equipments that operate at given logic voltage levels and character formats into communications system that operate at different logic voltage levels and character for... | 02/14/1984 |
| 4430525 | Circuit arrangement for connecting telex subscriber stations to teletex subscriber stations which are connected to the same data exchange system A data exchange system is connected to at least one signal converter in which digital signals emitted from teletex subscriber stations are converted so that they may be processed by teletex subscriber stations, and vice-versa. In order that the load on th... | 02/07/1984 |
| 4410889 | System and method for synchronizing variable-length messages in a local area network data communication system This disclosure relates to a system and method for the synchronization of variable-length messages being transmitted between stations of a local area contention network where the messages are made up of a variable number of fixed-length packets. This syst... | 10/18/1983 |
| 4409593 | Threshold-less collision detection and bit arbitration in a CFSK data system In a chirped-frequency-shift-keyed data system, in which a plurality of stations each contain a data transmitter and a data receiver constantly monitoring a common system communications medium even while the companion transmitter is transmitting digital d... | 10/11/1983 |
| 4409592 | Multipoint packet data communication system using random access and collision detection techniques In a data communications systems having a communications channel (3) for interconnecting a plurality of transceivers (1) and (2), each of said transceivers (1) and (2) including means (80) for transmitting a signal having transitions, there is provided a ... | 10/11/1983 |
