摘要:
Every year, professional classifiers at West Group manually classify over 350,000 headnotes, or abstracts of judicial opinions, across approximately 82,000 separate classes of the Key Number System. Although most headnotes are classified from the memory of the classifiers, a significant number are difficult and thus costly to classify manually. Accordingly, the inventors devised systems, methods, and software that facilitate manual classification of headnotes and documents generally and hard-to-classify headnotes particularly. One exemplary system provides a graphical user interface that concurrently displays an unclassified headnote, a ranked list of one or more candidate classes, a candidate class in combination with adjacent classes of the classification system, and at least one classified headnote that is associated with one of the candidate classes.
摘要:
A method of altitude correction of an inertial navigational device, the method comprising the steps of: receiving (205) a relative altitude of the inertial navigational device; obtaining (210) a rate of change of the relative altitude of a reference device; and calculating (215) an absolute altitude of the inertial navigational device based on the relative altitude of the inertial navigational device and the rate of change of the relative altitude of the reference device. The invention also provides for a device (505) such as base station, computer or a laptop to enable altitude correction of an inertial navigational device.
摘要:
Method and apparatus of increasing location accuracy of an inertial navigational device is described. The inertial navigation device generates real-time data and transmits the real-time data to a second device so that the second device may obtain a location of the inertial navigational device. The inertial navigational device receives an update message from the second device, wherein the update message is created at the second device based on a comparison of the real-time data generated by the inertial navigational device against a magnetic field database and adjusts the depicted location of the inertial navigational device based on the update message in order to increase the location accuracy of the inertial navigational device.
摘要:
A radio beacon (105(5)) is for use in location determination inside a building (103) or other enclosure. The beacon transmits a RF signal equivalent to a partially coded GPS (Global Positioning System) signal which includes an identity code identifying the beacon but null data in at least one GPS data field. A mobile station (101) includes a GPS receiver (208) for receiving GPS signals and a processor (202) for processing data extracted from signals received by the GPS receiver. The GPS receiver is operable to receive a signal from a transmitting beacon (105(5)). The processor is operable to recognise a beacon identity code from the data extracted from the received signal and thereby detect that the signal is from a radio beacon rather than a GPS satellite and thereby to apply a further procedure to calculate the location of the mobile station based upon a known location of the identified beacon.
摘要:
A system for integrating environmental sensors and asynchronous ubication repeaters forming an n-point spatially random virtual lattice network (100) includes a ubication repeater (101) for communicating both positional and environmental information to a two-way radio transceiver (102) used by police or firefighters. The ubication repeater (101) initially determines its position upon actuation from the two-way radio transceiver (102) where environmental information can be transmitted to the firefighter's two-way radio transceiver (102) or to a central location (104). The central location (102) can provide a composite overview of an environmental situation during an emergency.
摘要:
A system (400, 500) and method (800) of personal inertial navigation measurements can include measuring (802) an angle, measuring (804) an angular velocity independent of an angle measurement, measuring (806) an angular acceleration independent of the angle measurement and independent of an angular velocity measurement, and combining (808) the angle measurement, the angular velocity measurement, and an angular acceleration to provide an angled output. The angle measurement can be measured using a compass or magnetic field, the angular velocity can be measured using a gyroscope (such as a MEMS gyroscope), and the angular acceleration measurement can be measured using an angular accelerometer (such as a molecular electronic transfer device having a magneto hydrodynamic effect device). The method can further include suppressing (810) noise caused by the angle measurement by using a sample and hold circuit (504) controlled by a higher ordered component to suppress noise from a lower ordered component.
摘要:
A rotary control assembly (400) for a communication device includes a magnetic sensor (410) integrated within a housing (406) and a magnet (404) integrally coupled to a rotary control (402) for controlling the magnetic sensor. User rotation of the rotary control (402) and integral magnet (404) controls resistance of the magnetic sensor (410). The variation in resistivity of the magnetic sensor (410) corresponds to selection options associated with the rotary control. The rotary control assembly (400) provides a self-sealed environment. Either continuous variable control or defined detent control can be incorporated into a communication device using assembly (400).
摘要:
Every year, professional classifiers at West Group manually classify over 350,000 headnotes, or abstracts of judicial opinions, across approximately 82,000 separate classes of the Key Number System. Although most headnotes are classified from the memory of the classifiers, a significant number are difficult and thus costly to classify manually. Accordingly, the inventors devised systems, methods, and software that facilitate manual classification of headnotes and documents generally and hard-to-classify headnotes particularly. One exemplary system provides a graphical user interface that concurrently displays an unclassified headnote, a ranked list of one or more candidate classes, a candidate class in combination with adjacent classes of the classification system, and at least one classified headnote that is associated with one of the candidate classes.
摘要:
A system (100) and method (300) of using a context vector and database (202) for location applications can include a transceiver (104), a plurality of environmental sensors (114, 116, 118, 120, 121) including at least two location technology devices (110, 112), and a processor (102) coupled to the transceiver and the plurality of environmental sensors. The processor can be programmed to sense (302) an environmental condition for a given location, define (310) a context vector for the given location, detect (312) a context transition corresponding to a change in the environmental condition, and modify (314) an operation of the at least two location technology devices based on the context transition detected. The processor can be further programmed to form (320) a new context vector based on the context transition and attempt to match the new context vector with a pre-stored context vector.
摘要:
A radio system for locating a radio transceiver configured to exchange voice or data with a plurality of base stations on a narrowband channel is described. The system includes the radio transceiver that exchanges voice or data on the narrowband channel with a base station of the plurality of base stations and also to periodically transmit a chirp signal to the plurality of base stations. The radio system also includes the plurality of base stations each with a matched filter configured to receive the periodically transmitted chirp signal and to triangulate a location of the radio transceiver using the received chirp signal.