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7310316 Testing device  
A test device ( 21 ) sits between two or more nodes ( 20, 22 ). The nodes ( 20, 22 ) communicate in conversations, according to some predetermined protocol. The test device ( 21 ), under user...
7307542 System and method for commissioning addressable lighting systems  
A system for commissioning ballasts comprising a wireless device that can be easily transported to any location served by an addressable lighting system. The wireless device allows a user to cycle...
7106174 Anti-collision tag apparatus and system  
This invention relates to radio frequency identification (RFID) apparatus comprising a reader/writer and transponders (tags) such that 2 or more transponders are capable of operating simultaneously...
7075452 Process for reading electronic labels by identifications of their code by block of bits  
The invention concerns a method for reading a set of electronic labels, each comprising a distinct identification code of N bits and situated in the electromagnetic field of an interrogator device,...
7006454 Method used to create multihop RF network based on low performance 8 bit microcontrollers  
This invention comprises a method to manage the efficient routing of messages in a multi-hop network. This method can be implemented using a low cost, low processing power hardware platform,...
6954151 Selector switch for supervisory remote control system  
A selector switch for a supervisory remote control system is provided. This control system comprises operation terminals such as switches and control terminals such as relays, and a signal line for...
6826181 Packet transmitter  
There is disclosed a packet transmission apparatus for transmitting in a packet form a transmission unit including a data string arranged so as to divide predetermined data into a plurality of...
6492909 Audio signal processing apparatus  
An audio signal processing apparatus including a plurality of jack units each of which has at least an audio signal contact piece and a control signal contact piece. A control circuit judges a kind...
6466126 Portable data device efficiently utilizing its available power and method thereof  
A portable data device ( 400 ) having a power controller ( 430 ), a clock generator ( 428 ) and a digital circuit ( 432 ). The power controller ( 430 ) has an output signal. The output signal is...
6275166 RF remote appliance control/monitoring system  
A system for managing a distributed array of appliances includes a headend computer having a low power main transceiver and a distributed array of relay units. Each relay unit includes a low power...
6230224 Fan-out expansion circuit for RS-485 multidrop connection  
A fan-out expansion circuit for an RS-485 multidrop connection includes: a master node, a plurality of line control units, and a plurality of slave nodes. The master node communicates with the...
6054929 Device for giving warning of conditions of danger for scuba diving  
A device worn by a first diver provides a warning of conditions of danger and/or emergency to a second diver positioned at a distance from the first diver. The device includes a device for...
6028532 Automatic product conveying system  
Along an annular conveyance path there are provided plural work stations 4a, 4b, 4c and a warehouse 6 for temporary storage of products. Between the work stations 4a, 4b, 4c and the conveyance path...
5926101 Method and apparatus for routing messages in a network of nodes with minimal resources  
A system that includes a multihop broadcast network of nodes that have a minimum of hardware resources, such as memory and processing power. The network is configured by gathering information...
5838685 Method and apparatus for the transmission of data files  
A method and apparatus for the transmission of data files over a network has particular application in connection with store-and-forward systems. A message transmission is composed using a chosen...
5719562 Paging system using compact hierarchical addressing  
An hierarchical addressing mechanism for use in a paging system is disclosed. The paging system assigns a compressed organization identifier to each of the organization identifiers for the...
5712630 High power moving object identification system  
A moving object identification system with a novel coding scheme achieves 75% transmission efficiency. With this system, a transmittable range is expanded. Logical value assignment for residual...
5684469 Method of configuring a furniture utility distribution system  
A utility distribution system is provided for modular furniture of the type comprising individual furniture units which are juxtaposed to form one or more workstations. A signal conductor is...
5663716 Method of avoiding signal interference among a plurality of remote control signals  
A transmitting and receiving system includes two or more remote controls and a single receiver, which a machine or apparatus to be controlled is equipped with. Each remote control has a proper...
5661469 Coupling device, system, and method for coupling a terminal to a generating device  
A coupling device for coupling a videotelephone with a video generation device. The coupling device includes (i) a first device, for detecting at least one code word contained in a signal...
5655079 Data processing system and data transmission and processing method  
A data transmission method is provided for a multi-computer system which has a plurality of computers mutually connected via a transmission line. The plurality of computers are divided into groups,...
5652574 Dynamically addressable communications system and method  
A dynamically-addressable communications system provides either a list or set of dynamic addresses to selected receivers for broadcasting information packets from a transmission source to the...
5574860 Method of neighbor discovery over a multiaccess nonbroadcast medium  
A technique for generating, distributing and maintaining a list of operational nodes in a network using a nonbroadcast communication medium, wherein the nodes first collectively agree on the...
5550835 Supervisory image communication system through an integrated service digital network  
A supervisory image communication system by an ISDN includes a parent station and a plurality of child stations connected to the parent station by way of an ISDN basic interface and an ISDN...
5502818 Procedure for the determination of message identification in the data transmission network of an elevator system  
A procedure is disclosed for determining the message identifiers in a control area network CAN data transmission network of an elevator system where message identifiers are used in the transmission...
5502438 Address management for remote terminals in digital loop transmission systems  
Disclosed is a method and apparatus for identifying remote terminals which are networked in a digital loop transmission system. A Site Interface Unit (SIU) at one of the remote terminals acts as a...
5493564 Method and apparatus for global routing of electronic messages  
A method and apparatus for global routing of electronic messages includes maintaining external and internal address information for each user of a messaging system, along with means for associating...
5459717 Method and apparatus for routing messagers in an electronic messaging system  
A method and apparatus for routing a message embodied in a signal received by an electronic messaging system includes formatting a search key using address codes parsed from a user address...
5408228 Apparatus for expanding the functionality of a serial data bus  
An electronic milbus repeater circuit for expanding the capacity of a two-wire bus used for the transmission of data. By means of logic circuitry of the Milbus repeater according to the invention,...
5396493 Local area network bridge apparatus with dedicated packet filtering mechanism  
A local area network (LAN) bridge apparatus capable of carrying out the address learning and the packet filtering at a high speed, without requiring the program execution on the micro-processor for...
5382951 Initialization method and a system for transmitting messages between a control terminal and controlled terminals  
The invention relates to a method and a system for transmitting messages between a control terminal and controlled terminals for use especially in home automation installations. The controlled...
5331450 Infrared transmitter and receiver and method  
An infrared remote-control system and method for the simultaneous transmission of data from two or more separate hand transmitters to a single remote-control receiver is disclosed. Interference...
5124697 Acknowledge-back pager  
An acknowledge-back pager receives an address signal positioned within a group of address signals. Following reception of the address signal, first and second acknowledge signals are transmitted as...
5093659 Paging method and pager  
A paging system comprises a base station and a number of pagers. The base station transmits calling-number data and message data in the form of radio signals. The message data contains...
5030948 Multiple characteristic sensitive addressing schema for a multiple receiver data processing network  
A data transmission network enables address encoded messages to be transmitted via a radio wave type communications medium to multiple receivers, each of which is assigned a multiple byte address...
4963862 Terminal equipment identifier control circuit  
This invention relates to a terminal identifier control circuit which provides automatic start of the check procedure to examine the unassigned/assigned distinction of a limited number of terminal...
4920339 Switchable bus termination and address selector  
A switchable termination module for use with addressable devices on a communication bus has a terminator for each signal transmission path, a signal source, for example a switch for signalling...
4885578 In band connection establishment for a multiple multi-drop network  
A system for establishing connections between processors in a distributed system of processors connected by a multiple multi-drop network. No wires are needed in addition to those already present...
4638313 Addressing for a multipoint communication system for patient monitoring  
A method for dynamically assigning addresses to new modules as they are coupled to a communication system with a synchronous data link control (SDLC) bus is described. These modules communicate...
4634812 Method of transferring information between microcomputers in a decentralized process control system, particularly for telephone systems  
The invention relates to a method of transferring information between microcomputers in a decentralized process control system, particularly for telephone systems. To prevent contention for...
4571587 Digital interface selector  
An interface selector connecting a plurality of field digital devices to a single digital receiving device is disclosed. The interface selector provides a means for the digital receiving device to...
4464651 Home security and garage door operator system  
A home security and garage door operator system includes a gas sensor for detecting the level of toxic gas in the garage. When the gas level exceeds a predetermined threshold the garage door is...
4438432 Information display apparatus  
A plug-in "universal" information display module for use in an information display system, e.g. a train describer system, of the kind in which all information to be displayed is multiplexed onto a...
4431992 Circuit for addressing a set of registers in a switching exchange  
An addressing circuit has a register search counter (20) connected to a first multiplexer (24) and to a second multiplexer (25), a memory (33) connected to the output of the first multiplexer for...
4360801 Home security and garage door operator system  
A home security and garage door operator system includes a gas sensor for detecting the level of toxic gas in the garage. When the gas level exceeds a predetermined threshold the garage door is...
4355309 Radio frequency controlled light system  
A light control system includes a transmitting unit (10) having a receiver unit address (22) and an output address switch (24) for pulse modulating a digitally encoded transmission signal broadcast...
4347603 System for exchanging encoded messages between stations  
The present invention consists in a system for exchanging encoded messages between stations, in which each station comprises a connection module (2) connected to a signal bus (LMS) and to a data...
4284979 Coding system for simultaneously signaling selected ones of a plurality of devices  
A method of coding to provide command signals simultaneously to selected devices is disclosed. Each device is assigned a different power of the same integer. Commands are then signaled to the...
4284976 Interface between communication channel segments  
A plurality of transceivers frequently share a common communication medium or radio frequency channel. A broadcast channel can support only a limited number of transceivers. At some point, the...
4245212 Serial digital data decoder  
A serial data decoder which is party-line compatible having a word verifiion circuit to enable the decoder when a word addressed to the decoder is received. A data word is received and shifted into...
Matches 1 - 50 out of 130 1 2 3 >