Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 5652751 | Architecture for mobile radio networks with dynamically changing topology using virtual subnets An architecture for a radio network having nodes that are subject to dynamically changing topology such as, e.g., a mobile radio network. The network is partitioned into a number of physical subnets wherein each physical subnet includes a certain number o... | 07/29/1997 |
| 5621722 | Method and circuit arrangement for disturbance-free redirection of a message cell stream onto an alternate route Within a cell-oriented communication network (ATMN), a message cell stream supplied to a switching equipment (CCa) located at the start of a path pair is duplicated by the switching equipment in response to a request. The two message cell streams resultin... | 04/15/1997 |
| 5343464 | Switching system between working transmission lines and protection transmission line A switching system includes a protection switch that operates to switch a working transmission line to a protection transmission line or switch an optional transmission line to the protection transmission line. The protection switch consists of a first sp... | 08/30/1994 |
| 5323144 | Duplexed bus type network with failure changeover A duplexed bus type network in which a main transmission line and a stand-by transmission line are interconnected by a repeater (30), a changeover switch (40) or a two-way amplifier, a modem at each station is duplexed and connected to the main transmissi... | 06/21/1994 |
| 5241533 | Packet switching network with alternate trunking function In a packet switching network, in order to transmit a packet effectively, after transmission of a first packet from a source node to a destination node, a data for inhibiting a packet from being repeating to a specific trunk line from a node is set in a r... | 08/31/1993 |
| 5189662 | Transmission network having electronically switchable nodes for switching signal paths and a method of controlling said network In a transmission network having electronically-controlled switchable nodes, with network path information stored therein, a method is provided to control and monitor established signal paths and to switch the signal paths even in those cases where a cent... | 02/23/1993 |
| 5034945 | Packet switching network with alternate trunking function to repeat avoiding looped trunk A switching network having a plurality of repeater nodes, wherein each repeater node checks the number of times data packet has been received. If in excess of predetermined number, the repeater node transmits a looped trunk detection packet, the looped tr... | 07/23/1991 |
| 4961180 | Arrangements for producing and recognizing information identifying non-occupied transmission paths in a digital transmission system It is known in the art to characterize, by means of special bits in the time-division multiplex signal frame, transmission paths in a PCM transmission system which do not convey a useful signal, or to refrain from transmitting a signal through a non-occup... | 10/02/1990 |
| 4937569 | Data communication system The signalling network has a main control unit which can communicate with any of a number of home units each associated with a separate household. Some home units have signal-repeater facilities. Each of the control units and the home units has an address... | 06/26/1990 |
| 4930118 | Frame-interval fault detection in a demand assignment TDMA communication system In a demand assignment TDMA communication system, a central station transmits a frame sync and a polling signal at periodic intervals to terminal stations to elicit a response therefrom. Each terminal station transmits a test signal in response to recepti... | 05/29/1990 |
| 4878228 | Microwave relay station having a common standby channel for signals of different types of modulation A multichannel microwave relay station has first and second channels for respectively transmitting signals of different types of modulation, such as QAM and FM modulated signals. These different types of signal rely on a common standby transmission channe... | 10/31/1989 |
| 4799215 | High-speed packet-switched communications system with end-to-end flow control and retransmission In a packet switched communications system having a plurality of switching nodes, each user terminal transmits a packet of data-link layer control protocol including a network-layer control protocol to an adjacent switching node to cause it to be routed t... | 01/17/1989 |
| 4704714 | Method of detecting recovery from fault in a data transmission system which effects loopback control A looped data transmission system has a pair of looped transmission lines forming two transmission systems having different transmission directions, and a plurality of stations including at least one control station connected to said transmission lines of... | 11/03/1987 |
| 4506357 | Method and apparatus for switching loop type transmission lines A method of switching transmission lines for a transmission control system in which a plurality of stations are linked with loop type transmission lines having a stand-by transmission line characterized in that each of the stations is operable to switch t... | 03/19/1985 |
| 4242756 | Multiline switching protection apparatus A concept is illustrated for protecting active components in a multiline repeater station switching system to a state of "fail operability". This is accomplished by dividing the signal received on the single spare IF transmission line into IF and baseband... | 12/30/1980 |
| 3991278 | Line protection switching system Protection for service lines linking offices in a communications system is realized by linking the offices in a sequence with a serial connection of protection lines. Protection for service lines which bypass one or more of the offices in the serial seque... | 11/09/1976 |
