Quotables
"The idea that cavalry will be replaced by these iron coaches is absurd. It is little short of treasonous."
Aide-de-camp to Field Marshal Haig ; At a tank demonstration, 1916
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4580243 | Circuit for duplex synchronization of asynchronous signals The present invention provides for synchronizing signals transmitted to two duplex copies of hardware from a common source. Signals sent from the source to the duplex copies of hardware may arrive asynchronously at the two copies and require synchronizati... | 04/01/1986 |
| 4569047 | Signal transmission system A signal transmission system for interconnecting a plural number of input/output devices comprises a pair of signal lines for transmitting signals between the input/output devices and a reference signal generator connected to the signal lines for generati... | 02/04/1986 |
| 4472711 | Method and apparatus for synchronizing a station connected in a data line A method and apparatus for synchronizing a station connected in a data ring to the date rate in the ring in which the state of the data is detected as being in a first or second state and masking or unmasking first and second logic elements responsive to ... | 09/18/1984 |
| 4459588 | Timed token protocol for local area networks Disclosed is a timed token protocol which may be implemented on a physical or logical ring, the ring interconnecting a plurality of stations to form a local area network. Each station on the ring may be assigned one or more of three priority levels, the p... | 07/10/1984 |
| 4454508 | Timed token ring Disclosed is a timed token protocol which may be implemented either on a physical loop or a logical loop superimposed on a physical bus, the loop interconnecting a plurality of stations to form a network. Each station on the network may be of the same pri... | 06/12/1984 |
| 4435705 | Data transmission systems A communicating network in which encoder/decoders are joined in a ring by transmission links. Data passes over the links as a carrier having two cycles per bit period. The amplitude of the carrier in any bit period is non-zero and represents the value of ... | 03/06/1984 |
| 4417242 | Method for connecting or disconnecting selected stations in a ring communication system, and ring communication system including selectively connectable stations In a ring communication system comprising selectively connectable data stations, each station has connecting circuitry including a phase-locked loop arrangement (111) which is frozen at its current frequency and phase in response to a signal interruption ... | 11/22/1983 |
| 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 |
| 4396915 | Automatic meter reading and control system A remote automatic utility reading system includes a reading control center for transmitting commands to and receiving measurement data from remote terminal units via a command responsive control unit. The control unit is characterized by a computer havin... | 08/02/1983 |
| 4392125 | Multiplex communication system using remote microprocessors A multiplex security system provides two-way data communications between a local panel and multiple microprocessor-based remote panels interconnected over a common data transmission line. A second line provides two-way voice communications between the loc... | 07/05/1983 |
| 4392132 | Wireless signaling system A wireless signaling between one or more remote locations and a central location includes a transmitter at each remote location and switches for providing signals indicating status information on each remote location. A logic circuit coupled to the switch... | 07/05/1983 |
| 4380761 | Digital phase decoder with collision detection A data communication system includes a communicating medium and a plurality of transceivers connected to the medium, each including a transmitter for transmitting phase-encoded data onto the medium and a receiver for receiving phase-encoded data communica... | 04/19/1983 |
| 4375691 | Method and device for frequency translation A digital communications system includes a plurality of master stations communicating with a plurality of terminals over a single communication line which carries a plurality of duplex communication channels, each corresponding to a particular master stat... | 03/01/1983 |
| 4370648 | Synchronizing circuit for use with a telecommunication system A synchronizing circuit for use with a digital communication system is disclosed. A serial data stream is arranged in frames composed of at least two data words containing a synchronization signalling code and binary coded information, respectively. For d... | 01/25/1983 |
| 4361836 | Safety device at remote control of hydraulic or pneumatic machine tools A safety device at remote control of hydraulic or pneumatic machine tools where electric signals are used for controlling hydraulic or pneumatic valves, for example machines comprising a selector valve for different hydraulic functions, which is controlle... | 11/30/1982 |
| 4360807 | Device for remote control of hydraulic or pneumatic machine tools A device for remote control of hydraulic or pneumatic machine tools, comprising a selector valve for different hydraulic functions provided with a number of spring-centered slides and two electrohydraulic or -pneumatic converters connected to each slide, ... | 11/23/1982 |
| 4357605 | Cash flow monitoring system A computerized monitoring system which incorporates the power lines that provide electrical power to the remote devices as the physical communications medium of a serial data bus for the computer system. The system comprises a central computer and a plura... | 11/02/1982 |
| 4337463 | Time synchronization master station and remote station system A time synchronization system involves a master station sending time information to a remote station and in which a portion of the time message is used as a trigger to start a counter or interval clock in the remote station. When the time message is concl... | 06/29/1982 |
| 4330855 | Apparatus for multiplexing digital signals The invention is an apparatus and method for multiplexing digital informan acquired from a multiplicity of data terminals distributed along a conductor of given length. A cyclic synchronization signal consisting of a stream of coding periods is transmitt... | 05/18/1982 |
| 4315251 | Automatic meter reading and control system An automatic meter reading and control system for communicating with remote terminal points includes a reading control center which selectively communicates with a meter terminal unit at each terminal point by way of a section control unit, each section c... | 02/09/1982 |
| 4310790 | Device for position control A device for position control including a first generator for delivering first and second identical signals dephased to each other by 90°. A position pickup having two inputs connected to the first and second signals and an output for delivering a measur... | 01/12/1982 |
| 4295039 | Method and apparatus for achieving secure password verification A method and apparatus for identifying an individual holder (person) of an unalterable charge card-like device (CARD) at a utilization terminal (U/I Terminal) wherein a unique user entered key (asserted key KA) is handled in a highly secure man... | 10/13/1981 |
| 4289976 | Circuit arrangement for the transmission of digital data A circuit arrangement is described for the transmission of a digital data signal. The circuit arrangement is inserted as an asynchronous interface into the transmission path between digital data handling systems with differing clock frequencies f1 | 09/15/1981 |
| 4287508 | Information transmitting and receiving apparatus Disclosed is an information transmitting and receiving apparatus comprising a transmitting means for sequentially transmitting a plurality of information signals each including a synchronizing signal, an address signal and a data. The information transmit... | 09/01/1981 |
| 4155074 | Data collection system A data collection system wherein the data in remotely located terminal equipment are read out through three transmission lines by a data collection station. The data collection station selects a terminal equipment and supplies power and clock pulses to th... | 05/15/1979 |
| 4064486 | Data communications loop synchronizer A loop controller for a data communication network system formed by interconnecting a group of heterogeneous computers, batch terminals and conversational terminals in a ring or loop configuration. Each computer or terminal is connected to the communicati... | 12/20/1977 |
| 4041248 | Tone detection synchronizer A synchronizer circuit for use with tone receivers employed in the reception of asynchronous tones. A plurality of latch stages controlled by an external clock pulse source and internal timing circuitry provides synchronized outputs of a series of signals... | 08/09/1977 |
| 4031512 | Communications network for general purpose data communications in a heterogeneous environment A data communication network system for interconnecting a group of heterogeneous computers, batch terminals and conversational terminals employing serial transmission techniques in a ring or loop configuration. Each computer or terminal is connected to th... | 06/21/1977 |
| 4020477 | Radio central station alarm system A radio central station alarm system including a central station and a plurality of remote stations for transmitting alarm signals to the central station by means of radio signals. Alarm signals are transmitted repeatedly in a sequence which reduces the p... | 04/26/1977 |
