US5740538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for identifying the location of a wireless terminal
Assignee: Nokia of America Corp
•
Filing: 1996-01-05
•
Granted: 1998-04-14
•
Expires: 2016-01-05
Abstract
Abstract A system and method that identify the location of a wireless terminal. An illustrative embodiment of the present invention comprises a wireless communication system with a plurality of base stations. The system associates a location identification signal with each base station, such as an area code and an exchange of a telephone number in the geographic area of the base station. When a call is connected through a base station, the system modifies the caller-ID signal for the wireless terminal with the location identification signal of the base station. Thus, the system identifies the location of a wireless terminal.
Inventors
- 👤 Michael Julian Joyce
- 👤 Ping-Wen Ong
- 👤 Abbas Ourmazd
- 👤 Colin Alan Warwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
H; H04; H04W; H04W4/00; H04W4/20; H04W64/00; H04W76/00; H04W76/20; H04W8/00; H04W8/22; H04W8/24; H04W8/245; H04W92/00; H04W92/04; H04W92/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
94 words
A wireless communication system comprising: a wireless switching center coupled to a public switched telephone network; a plurality of base stations communicatively coupled to said wireless switching center; and a location circuit that determines if a called number corresponds to a location service and if said called number corresponds to the location service, said location circuit modifies the caller-identification signal for a call from a wireless terminal with a signal that identifies the location of one of said base stations such that the modified caller-identification signal identifies the proximate location of the wireless terminal.
Claim 2
Dependent Claim
94 words
A wireless communication system comprising: a wireless switching center coupled to a public switched telephone network; a plurality of base stations communicatively coupled to said wireless switching center; and a location circuit that determines if a called number corresponds to a location service and if said called number corresponds to the location service, said location circuit modifies the caller-identification signal for a call from a wireless terminal with a signal that identifies the location of one of said base stations such that the modified caller-identification signal identifies the proximate location of the wireless terminal.
Claim 3
Dependent Claim
15 words
The system of claim 1, wherein said location circuit is disposed in said base station.
Claim 4
Dependent Claim
16 words
The system of claim 1, wherein said location circuit is disposed in said wireless switching center.
Claim 5
Dependent Claim
42 words
The system of claim 1, wherein said location circuit comprises a circuit that replaces at least a portion of the caller-identification signal with a three digit area code and a three digit exchange number corresponding to the location of the base station.
Claim 6
Dependent Claim
21 words
The system of claim 1, wherein said location circuit comprises a circuit that appends a location signal to said caller-identification signal.
Claim 7
Independent Claim
94 words
A method for identifying the location of a wireless terminal, the method comprising: receiving a dialed telephone number from a wireless terminal at a base station; determining if a called number corresponds to a location service and if said called number corresponds to the location service, said location circuit modifying the caller-identification signal for a call from a wireless terminal with a signal that identifies the geographic location of the base station such that the modified caller-identification signal identifies the proximate location of the wireless terminal; continuing the call with the modified caller-identification signal.
Claim 8
Independent Claim
94 words
A method for identifying the location of a wireless terminal, the method comprising: receiving a dialed telephone number from a wireless terminal at a base station; determining if a called number corresponds to a location service and if said called number corresponds to the location service, said location circuit modifying the caller-identification signal for a call from a wireless terminal with a signal that identifies the geographic location of the base station such that the modified caller-identification signal identifies the proximate location of the wireless terminal; continuing the call with the modified caller-identification signal.
Claim 9
Dependent Claim
26 words
The method of claim 6, wherein said step of modifying the caller-identification signal comprises the step of appending a location signal to the caller identification signal.
Claim 10
Dependent Claim
27 words
The method of claim 6, wherein said step of modifying the caller-identification signal comprises the step of replacing the caller identification signal with a location identification signal.
Claim 11
Dependent Claim
45 words
The method of claim 6, wherein said step of modifying the caller-identification signal comprises the step of replacing at least a portion of the caller-identification signal with a three digit area code and a three digit exchange corresponding to the location of the base station.
References Cited (Backward Citations)
US4748655A
Cited
US5544225A
Cited
US5548583A
Cited
US5388147A
Cited
US5371781A
Cited
US5561704A
Cited
US5519760A
Cited
US5596625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-13 | 2001-10-13 | 2002-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-13 | 2005-10-13 | 2006-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-13 | 2009-10-13 | 2010-04-14 | $7700.00 | Window Closed / Lapsed |