Multiple pass location processor
First Claim
1. A multiple pass location processing method for use in a wireless location system (WLS) capable of locating a wireless transmitter based on a transmission received from the wireless transmitter, comprising the steps of:
- (a) producing a first location, lower quality location estimate and providing said first location estimate to a first location application; and
(b) subsequently producing a second location, higher quality location estimate for delivery to a second location application, wherein the second location application may be the same as the first location application or different from the first location application.
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Accused Products
Abstract
A multiple pass location processing method, for use in a wireless location system (WLS), comprises identifying a received transmission as requiring multiple pass location processing whereby the WLS produces a first, lower quality location estimate and then subsequently produces a second, higher quality location estimate. The WLS then produces the first location estimate and provides it to a first location application, and then produces the second location estimate. The second location estimate may be a more accurate estimate than the first location estimate and/or of a higher confidence than the first location estimate. This method is suitable, but not limited, for use in connection with locating a wireless transmitter involved in an emergency services call and routing the call to a call center.
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Citations
92 Claims
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1. A multiple pass location processing method for use in a wireless location system (WLS) capable of locating a wireless transmitter based on a transmission received from the wireless transmitter, comprising the steps of:
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(a) producing a first location, lower quality location estimate and providing said first location estimate to a first location application; and
(b) subsequently producing a second location, higher quality location estimate for delivery to a second location application, wherein the second location application may be the same as the first location application or different from the first location application. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A multiple pass location processing method for use in a wireless location system (WLS) capable of locating a wireless transmitter involved in an emergency services call, based on a transmission received from the wireless transmitter, and routing the call to a call center, comprising the steps of:
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(a) producing a first location, lower quality location estimate and providing said first location estimate to a first location application; and
(b) producing a second location, higher quality location estimate;
wherein the first location estimate is less accurate than the second location estimate but is sufficient for call routing purposes.
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31. A wireless location system (WLS), comprising:
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(a) a plurality of geographically separated receiver systems for receiving a transmission from a wireless transmitter;
(b) means for producing a first, lower quality location estimate;
(c) means for providing said first location estimate to a first location application;
(d) means for producing a second, higher quality location estimate; and
(e) means for providing said second location estimate to the first or a second location application. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. A multiple pass location processing means for use in a wireless location system (WLS) capable of locating a wireless transmitter involved in an emergency services call, based on a transmission received from the wireless transmitter, and routing the call to a call center, comprising:
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(a) means for producing a first location, lower quality location estimate and providing said first location estimate to a first location application; and
(b) means for producing a second location, higher quality location estimate;
wherein the first location estimate is less accurate than the second location estimate but is sufficient for call routing purposes. - View Dependent Claims (63, 64)
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65. A wireless location system (WLS), comprising:
- (a) a plurality of geographically separated receiver systems for receiving a transmission from a wireless transmitter; and
(b) a processor and executable instructions for producing a first, lower quality location estimate, and for subsequently producing a second, higher quality location estimate, wherein said first location estimate may be communicated to a first location application for call routing purposes.
- (a) a plurality of geographically separated receiver systems for receiving a transmission from a wireless transmitter; and
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66-86. -86. (Canceled).
- 87. A method for use in a Wireless Location System in locating a mobile transmitter involved in an emergency services call and routing the call to the correct call center using a first location attempt bounded by the time to produce a first timely but lower accuracy location estimate for routing and a second location estimate bounded by the accuracy required for the purposes of caller location.
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92-99. -99. (Canceled).
Specification