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7386002 Redundant radio frequency network having a roaming terminal communication protocol  
Disclosed herein is a redundant network and communication protocol at least including host computers, RF base stations, and roaming terminals. The network may utilize a polling communication...
7369036 Method and system of information exchange between an interrogator device and transponder devices that takes into account the level of ambient noise  
A method and apparatus of information exchange between an interrogator device and a plurality of transponder devices are disclosed. Each of the transponder devices is equipped with a different...
7274285 System and method for improved object identification  
A method for identifying objects within a set of objects includes the steps of transmitting a signal toward a region of interest, receiving energy reflected from the region of interest,...
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...
7158046 System and method for radio frequency tag group select  
A master entity is capable of broadcasting commands to slaves which move to another state when they satisfy a primitive condition specified in the command. By moving slaves among three sets, a...
7151436 Receiving/backscattering arrangement and method with two modulation modes for wireless data transmission as well as modulation arrangement therefor  
For transmitting data, a receiving/backscattering arrangement receives, modulates and reflects or backscatters electromagnetic waves emitted by a base station. The modulation corresponds to the...
7124184 Home networking system having alive and connection termination messages and method for operating same  
A home network system for controlling one or more home appliances connected to a network and a method for operating the same. If an alive message or a connection termination message is normally...
7102505 Wireless sensor system  
A low cost, robust, wireless sensor system that provides an extended period of operability without maintenance is described. The system includes one or more intelligent sensor units and a base unit...
7102504 Wireless sensor monitoring unit  
A low cost, robust, wireless sensor system that provides an extended period of operability without maintenance is described. The system includes one or more intelligent sensor units and a base unit...
7076210 Communication method, communication system, and communication device  
In the case where close range wireless communication is performed among a plurality of communication devices, when a predetermined connection operation is performed in a first communication device ...
7068633 Enhanced channel access mechanisms for QoS-driven wireless lans  
A method and a system is disclosed for providing quality of service (QoS)-driven channel access within a basic service set (BSS) in a wireless network. A contention control (CC) frame is sent from...
7039032 Multipoll for QoS-Driven wireless LANs  
A method and a system are disclosed for providing quality of service (QoS)-driven channel access within a basic service set (BSS) in a wireless network. A point coordinator (PC) station determines...
7012928 Data transmission method by polling and terminal apparatus for use in the method  
A data transmission method in which a transmission request is forwarded from a host apparatus to a terminal apparatus. When receiving the transmission request, the terminal apparatus forwards as...
6992561 System for the control and monitoring of sanitary appliances  
A system for the control and monitoring of electronic sanitary appliances with a command level, an automation level and a field level. The automation level includes automation stations ( 1 ) which...
6980079 Control network system of household electric appliance  
In a control network system of household electric appliances, particularly, an each introduction of a household electric appliance thereto does not cause a change in the means of acquiring...
6812852 System and method for selecting a subset of autonomous and independent slave entities  
A master entity is capable of broadcasting commands to a plurality of three-state-selection machine slaves. Transitions from one state to another are effected on instruction from commands in a...
6744348 Security system utilizing group supervision polling  
In a security system that has a large number of individually-addressable modules interconnected on a data bus to a control panel, a method of concurrently supervising the modules by first...
6728618 Method for activating a system for controlling and/or regulating operational sequences in a motor vehicle having several equal-access control units  
A system for controlling and/or regulating operational sequences in a motor vehicle having several equal-access control units for controlling and/or regulating certain functions in the motor...
6720876 Untethered position tracking system  
The invention can enable the position (i.e., location and/or orientation) of one or more untethered objects to be tracked. One or more transmitters, each of which has a fixed and known positional...
6714559 Redundant radio frequency network having a roaming terminal communication protocol  
Disclosed herein is a redundant network and communication protocol at least including host computers, RF base stations, and roaming terminals. The network may utilize a polling communication...
6665720 Adapter for a home power line network  
An element for an in home power line network is housed within the power supply of laptop computer. The element communicates with the power line and carries out network operations over that line....
6650228 Method an system for reading a dynamic set of tags bearing distinct ID codes  
The invention relates to a method and system for reading a dynamic set of tags present in the electromagnetic field of a polling device, consisting in updating cyclically a list of tags present in...
6624738 Electronic control unit for a motor vehicle with data networks and immobilizer  
The invention relates to an electronic control unit for a motor vehicle with a plurality of data networks and an electronic immobilizer. The control unit according to the invention is configured...
6583628 Process and device to determine malfunctioning detectors acting as current sinks in a danger signaling system  
A process to determine malfunctioning detectors in a danger signaling system having a control center and at least two-wire signaling line joined to multiplicity of detectors. Control center emits...
6553013 Detection system for determining positional information about objects  
A system which enables the position of each plurality of mobile labelled objects in a specified environment to be determined from the transit times to fixed receivers of ultrasound energy...
6529119 Establishment of communications with a selected device in a multi-device environment  
A method and apparatus are described that allows a wireless device to detect and initiate communications with a selected second wireless device in a multi-device environment. Initiation of...
6494831 Medical diagnostic system service connectivity method and apparatus  
A technique is provided for verifying network connectivity between a medical diagnostic system and a remote service facility. The remote service facility is contactable at will by the subscribing...
6470002 Detection system for determining positional information about objects  
A system which enables the position of each of a plurality of movable labelled objects to be determined in an environment having two or more isolated zones, wherein the objects carry transponders...
6424248 Furniture unit having a modular communication network  
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...
RE37613 System for specifying addresses by creating a multi-bit ranked ordered anchor pattern and creating next address by shifting in the direction of the superior position  
An automatic addressing technique for flexibility specifying the individual physical addresses of a plurality of devices coupled to an information bus. An anchor pattern is applied to an address...
6348856 Detection system for determining positional and other information about objects  
A system for determining the position of a labelled object within an environment containing a plurality of detectors sensitive to energy of a first type and located at known positions therearound,...
6317234 Communications network  
A communications network includes an optical waveguide to which is connected a head-end station and at lest one optical network unit (ONU). An ONU provides an interface to the communications system...
6301514 Method and apparatus for configuring and synchronizing a wireless machine monitoring and communication system  
A method of configuring and synchronizing a wireless machine monitoring system that has at least one chain, that includes at least one machine monitor and at least one repeater is disclosed. The...
6297737 Object locating system  
A locating unit includes a wireless communications interface for transmitting signals to one or more locating tags. A user physically associates each tag with an item of interest, such as a...
6297724 Lighting control subsystem for use in system architecture for automated building  
An electrical power control system is adapted for controlling power and lighting in a building. Switch controls have either relays or triacs, controlled by microprocessors, to switch power on...
6292828 Trans-modal animated information processing with selective engagement  
Broadcast and/or dedicated signals are generated and transmitted to one or more wired or wireless receiving stations. Signal receptions are qualified according to embedded code or compared to other...
6289222 Free-forming one-way network  
A one-way or single-channel communication network utilizing electromagnetic radiation signals of a fixed single or narrow-band frequency in free air space consists of a plurality of transmitters...
6288637 Fire protection system  
A fire protection system for determining the existence of hazardous conditions within a building. The system includes a central monitor node for monitoring and displaying system status information....
6236332 Control and monitoring system  
A two-way wireless communications system for permitting the control, monitoring and collection of data from electrical apparatus includes a host computer, control and monitoring units remotely...
6229452 ECP train line communications for railway freight car brakes  
A low power ECP trainline communication method is provided wherein power consumption by each freight car's on-board ECP transceiver is minimized such that it can be powered indefinitely by a...
6147592 Bed status information system for hospital beds  
A bed status information system for indicating to attending personnel the status of a patient bed includes bed condition input signal generators carried by the bed and coupled to operational...
6134692 Information identification system for identifying response units by a control unit, and the control unit and the response units for the information identification system  
A control unit transmits address area designation information designating an arbitrary bit position in ID data. At least a response unit transmits a response signal with an error detection code...
6114968 Hybrid contention/polling access method  
A system, device, and method for improving access in a hybrid contention/polling protocol maintains a list of active users, a list of recently active users, and a list of inactive users. An active...
6111887 Method and apparatus for power tuning a terminal of a bi-directional communications system  
A method and apparatus for power tuning a terminal of a bi-directional communications system, such as a cable television plant. An iterative or cycle method is used to achieve a proper terminal...
6091741 Radio packet communication system capable of avoiding transmission collision  
In a radio packet communication system between a master station and a plurality of slave stations, a contention mode is switched to a polling mode or vice versa in accordance with the amount of...
6091328 Fire alarming system  
A fire alarming system includes a plurality of terminal devices including fire sensors, transmitters, manual boxs, and/or other devices to be controlled; and a receiving device to which the...
6081192 Fire alarm system  
An object of the present invention is to provide a fire alarm system which is adaptable to form a large-size fire alarm system and is capable of causing a receiving portion to quickly detect fire...
6014084 Electronic self-locating system and method  
A method and an apparatus for automatically locating detectors in an ambient condition monitoring system incorporate a normally closed contact for open circuiting the associated communication link....
5973610 System for automated selection of a communications unit for refrigerating containers  
Refrigerating containers (reefers) disposed in a seaboard terminal or onboard a ship and with a power supply via cables is monitored by means of built-in equipment and communicates via the power...
5973609 Communication system with adaptive media access control  
A communication system includes data terminals and controllers. The controllers have distinct areas of responsibility in which they communicate with particular data terminals. The controllers map...
Matches 1 - 50 out of 230 1 2 3 4 5 >