Abstract:
A power distribution and communication system includes nodes connected by power lines and communication links. The system receives power from one or more power sources. Each node contains at least one power port, data port and load port. Associated with each power port and load port is a port monitor for measuring current flowing into or out of the port and the voltage difference between the port outlet and ground, which measurements are passed to a processing element. The processing element and monitor analyze measured values to detect fault conditions. Upon fault condition detection, the port is disabled by opening a switch, disconnecting the port from the system voltage. The processing element receives power directly from the power line, thus receiving power from a live power line even if the associated power port is disabled allowing the processing element to enable a disabled node following a failure.
Abstract:
A method for controlling a plurality of fans operatively disposed in a shipping container. The fans are arranged in a plurality of banks within a closed fluid path. Each bank has a sub-set of the fans arranged in a plurality of horizontal layers. Two banks form an adjacent pair in the closed fluid path if a fluid exiting one of the two banks next enters the other of the two banks. The method includes determining a proposed fluid flow rate for each of the banks. The method also includes modifying each of the flow rates by a respective scaling factor such that the flow rates for each adjacent pair satisfy a continuity criteria. The method further includes controlling the fans based on the modified flow rates.
Abstract:
A correlation system (100) is disclosed, for use with a lighting system (102). The lighting system (102) is associated with one or more wands (104) so as to initially configure or reconfigure relationships and correlation among switches and lights of the lighting system (102). The lighting system (102) includes a plurality of lighting units (106). The lighting system (102) also includes a plurality of switch units (128). The wand (104) includes an IR emitter (160) to transmit signals to said lighting units (106) and to said switch units (128) so as to effect controlling relationships among the switch units (128) and lighting units (106).
Abstract:
A simple and efficient method for producing an obfuscated speech signal which may be used to mask a stream of speech, is disclosed. A speech signal representing the speech stream to be masked is obtained. The speech signal is then temporally partitioned into segments, preferably corresponding to phonemes within the speech stream. The segments are then stored in a memory, and some or all of the segments are subsequently selected, retrieved, and assembled into an obfuscated speech signal representing an unintelligible speech stream that, when combined with the speech signal or reproduced and combined with the speech stream, provides a masking effect. While the presently preferred embodiment finds application most readily in an open plan office, embodiments suitable for use in restaurants, classrooms, and in telecommunications systems are also disclosed.
Abstract:
A simple and efficient method for producing an obfuscated speech signal which may be used to mask a stream of speech, is disclosed. A speech signal representing the speech stream to be masked is obtained. The speech signal is then temporally partitioned into segments, preferably corresponding to phonemes within the speech stream. The segments are then stored in a memory, and some or all of the segments are subsequently selected, retrieved, and assembled into an obfuscated speech signal representing an unintelligible speech stream that, when combined with the speech signal or reproduced and combined with the speech stream, provides a masking effect. While the presently preferred embodiment finds application most readily in an open plan office, embodiments suitable for use in restaurants, classrooms, and in telecommunications systems are also disclosed.
Abstract:
The invention determines the location of multiple, simultaneous contact areas on a touch sensing region using a light source and several light detectors. The invention is robust against occlusion and many of the ambiguities that can arise with multiple, simultaneous contact areas. Generally, the light source is positioned such that light emanating the light source passes across the touch sensing region, and the light detector are positioned such that at least a portion of the light source is within the field of view of each light detector. The contact areas are determined by identifying positive fans corresponding to an angular sector of the field of view of a light detector in which the view of the light source is occluded and negative fans corresponding to an angular sector of the field of view of a light detector in which the view of the light source is not occluded. The positive fans and negative fans are then additively and subtractively combined, respectively, to determine the contact areas.
Abstract:
In a communications system, after parties form a dial up voice telephone connection, the parties respective communications devices automatically create or leverage machine readable features or content of the telephone connection to identify the parties to each other or to a rendezvous server, and thereafter the communications devices and/or the rendezvous server automatically establishes a data link between the parties.
Abstract:
A designation based system (1000) is used with a network (530) to provide for a reconfigurable working environment. The system (1000) employs at least one control wand (892) for transmitting spatial programming signals (890) to IR receivers (844) associated with switches (967) and connector modules (144). The connector modules (144) are connected to application devices, and controlled and controlling relationships can be configured and reconfigured between the switches (967) and the connector modules (144), thereby controlling interconnected application devices.
Abstract:
A split bus rail system (100) is employed within a commercial interior (102). The system (100) includes a main rail (114) with a power bus assembly (116) and a communications bus assembly (112). Application devices (512) are selectively energized through connector modules (400) coupled to the bus assemblies (116, 118).
Abstract:
A method and apparatus for providing appropriate output signals to output devices in a teleconference setting is disclosed. Input signals are obtained from input devices, and descriptive information describing the teleconference is received from several sensors. On a substantially continuous basis, using the descriptive information, a desirability is computed for each of several possible output configurations, each output configuration specifying a routing of output signals to output devices. The most desirable output configuration is then selected, and output signals are provided to output devices as specified by the selected output configuration.