Method and apparatus for locating a wireless communication device
First Claim
1. A method for locating a mobile communication device, comprising the steps of:
- storing one or more subscriber defined locations in a user location database, each subscriber defined location being associated with at least one subscriber and having predefined geocoordinates;
receiving sensed geocoordinates, which define the approximate location of the mobile communication device;
comparing the sensed geocoordinates with the predefined geocoordinates which define a plurality of locations at which the mobile communication device can reside; and
selecting the a subscriber defined location for use as the location of the mobile communication device when the sensed geocoordinates are within a predetermined distance of the predefined geocoordinates.
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Accused Products
Abstract
A method for locating a mobile communication device includes the steps of sensing geocoordinates that represent the telephone'"'"'s approximate location, comparing the sensed geocoordinates to predefined geocoordinates that represent a home location municipal address, selecting geocoordinates responsive to the comparison, and locating the portable telephone according to the selected geocoordinates. In another embodiment, a cellular telephone includes a positioning receiver for sensing approximate geocoordinates of the cellular telephone, memory for storing home-location geocoordinates, logic for comparing the approximate geocoordinates with the home-location geocoordinates and for selecting a preferred position responsive to the outcome of the comparison; and a radio transmitter for transmitting the preferred position to a public safety answering point.
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Citations
23 Claims
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1. A method for locating a mobile communication device, comprising the steps of:
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storing one or more subscriber defined locations in a user location database, each subscriber defined location being associated with at least one subscriber and having predefined geocoordinates; receiving sensed geocoordinates, which define the approximate location of the mobile communication device; comparing the sensed geocoordinates with the predefined geocoordinates which define a plurality of locations at which the mobile communication device can reside; and selecting the a subscriber defined location for use as the location of the mobile communication device when the sensed geocoordinates are within a predetermined distance of the predefined geocoordinates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for locating a mobile communication device, comprising the steps of:
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storing one or more subscriber defined locations in a user location database, each subscriber defined location being associated with at least one subscriber and having predefined geocoordinates; sensing, in the mobile communication device, geocoordinates that represent the approximate location of the mobile communication device; transmitting the sensed geocoordinates to a wireless base station over an RF communication path; retrieving from a memory the predefined geocoordinates; computing a distance between the sensed geocoordinates and the predefined geocoordinates; comparing the distance to a predetermined threshold value; and determining a municipal street address from the subscriber defined location when the distance is no greater than the predetermined threshold value. - View Dependent Claims (11)
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12. A method for locating a mobile communication device, comprising the steps of:
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storing one or more subscriber defined locations in a user location database, each subscriber defined location being associated with at least one subscriber and having predefined geocoordinates, at least one of said subscriber defined locations being representative of the subscriber'"'"'s home location municipal address; acquiring sensed geocoordinates based on global positioning system information that represent the mobile communication device'"'"'s approximate location; retrieving the predefined geocoordinates that represent a location at which the mobile communication device can reside from a memory disposed in the mobile communication device; computing a distance between the sensed geocoordinates and the predefined geocoordinates; comparing the distance to a predetermined threshold value; selecting the subscriber defined location to define the location of the mobile communication device when the distance is no greater than the predetermined threshold value; and transmitting location information representing the predefined geocoordinates to a wireless base station over an RF communication path.
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13. A method for locating a mobile communication device, comprising the steps of:
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storing one or more subscriber defined locations in a user location database, each subscriber defined location being associated with at least one subscriber and having predefined geocoordinates; retrieving predefined geocoordinates from user location database; computing a distance between the sensed geocoordinates and the predefined geocoordinates; comparing the distance to a predetermined threshold value; selecting the subscriber defined location to represent the location of the mobile communication device when the distance is no greater than the predetermined threshold value; and determining a municipal street address representing the subscriber defined location from the subscriber defined location when the distance is no greater than the predetermined threshold value.
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14. A communications device, comprising:
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an input circuit that receives sensed geocoordinates which represent the approximate location of a mobile terminal and predefined geocoordinates that represent one or more subscriber defined locations, each subscriber defined location being associated with at least one subscriber; and a positioning circuit that compares the sensed geocoordinates and the predefined geocoordinates and generates a location message, which is indicative of the location of the mobile terminal, in response to the comparison, said positioning circuit comprising; comparison circuitry that generates a distance signal which is indicative of the distance between the sensed geocoordinates and the predefined geocoordinates; and location generation circuitry that outputs the sensed geocoordinates as the location message when the distance, represented by the distance signal, is within a predetermined threshold value. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification