← Back to Patent Explorer
US5517554A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus and method for locking a mobile communication unit

Assignee: Motorola Solutions Inc
•
Filing: 1994-07-08
•
Granted: 1996-05-14
•
Expires: 2014-07-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract The present invention provides an apparatus and method for locking the mobile identification number (MIN) of a mobile communication unit (22,24) at the mobile switching center (MSC) (18). Once a MIN is locked at the MSC, the cellular communication system (10) will block any mobile communication unit (22,24) attempting to originate a call with the locked MIN, even if it is the mobile communication unit (22) assigned the locked MIN which is attempting to place the call. The user may lock and unlock the mobile communication unit MIN from any public switch telephone (26), from selected public switch telephones, from the mobile communication unit (22) itself, from other mobile communication units (24). The mobile communication unit MIN may also be locked by default.

Inventors

  • 👤 John J. Mitchell
  • 👤 Hope Braun
  • 👤 Harold Patrick
  • 👤 Mark Acheson
  • 👤 Joseph J. Coffey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 03:49
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/18; H04W12/00; H04W12/12; H04W12/126; H04W4/00; H04W4/24; H04M; H04M2215/00; H04M2215/20; H04M2215/2026; H04M2215/32

Claims Analysis

Total Claims: 22
Claim 1
Independent Claim 117 words
An apparatus for allowing a user to lock a mobile communication unit in a cellular communication system to prevent access by an unauthorized user, the mobile communication unit being identified within the cellular communication system by a mobile identification number, the apparatus comprising: a mobile switching center; means for remotely accessing; without operator assistance,, the mobile switching center; means for allowing the user to communicate the mobile identification number of the mobile communication unit to be locked to the mobile switching center; and means for allowing the user to instruct the mobile switching center to inhibit operation of any mobile communication unit once identified by the mobile switching center as having the same communicated mobile identification number.
Claim 2
Independent Claim 117 words
An apparatus for allowing a user to lock a mobile communication unit in a cellular communication system to prevent access by an unauthorized user, the mobile communication unit being identified within the cellular communication system by a mobile identification number, the apparatus comprising: a mobile switching center; means for remotely accessing; without operator assistance,, the mobile switching center; means for allowing the user to communicate the mobile identification number of the mobile communication unit to be locked to the mobile switching center; and means for allowing the user to instruct the mobile switching center to inhibit operation of any mobile communication unit once identified by the mobile switching center as having the same communicated mobile identification number.
Claim 3
Dependent Claim 19 words
The apparatus of claim 1 wherein the means for accessing a mobile switching center comprises a land line telephone.
Claim 4
Dependent Claim 19 words
The apparatus of claim 1 wherein the means for accessing a mobile switching center comprises a mobile communication unit.
Claim 5
Dependent Claim 17 words
The apparatus of claim 1 wherein the mobile identification number is associated with a personal identification number.
Claim 6
Dependent Claim 19 words
The apparatus of claim 4 further comprising means for verifying the mobile identification number and the personal identification number.
Claim 7
Dependent Claim 30 words
The apparatus of claim 1 wherein the means for allowing a user to instruct the mobile switching center includes means for communicating an activation code to the mobile switching center.
Claim 8
Dependent Claim 15 words
The apparatus of claim 1 further comprising means for unlocking a locked mobile communication unit.
Claim 9
Dependent Claim 23 words
The apparatus of claim 1 further comprising means for confirming inhibit operation of mobile communication units identified by the communicated mobile identification number.
Claim 10
Dependent Claim 32 words
The apparatus of claim 2 wherein the means for accessing the mobile switching center is further operable for restricting access to the mobile switching center to particular user identified land line telephones.
Claim 11
Dependent Claim 98 words
The apparatus of claim 1 wherein the means for remotely accessing the mobile switching center comprises means for registering the mobile communication unit with the mobile switching center, and the means for allowing a user to instruct the mobile switching center comprises means for determining the time period since the mobile communication unit last registered with the mobile switching center and for instructing the mobile switching center to inhibit operation of any mobile communication unit once identified by the mobile switching center as having the same communicated mobile identification number if the time period exceeds a threshold value.
Claim 12
Independent Claim 109 words
A method of allowing a user to lock a mobile communication unit in a cellular communication system, the cellular communication system including a mobile switching center and the mobile communication unit being identified to the mobile switching center by a mobile identification number, the method comprising: the user remotely and without operator assistance accessing the mobile switching center; receiving the mobile identification number from the user of the mobile communication to be locked at the mobile switching center; and the user instructing the mobile switching center to inhibit operation of any mobile communication unit once identified by the mobile switching center as having the same received mobile identification number.
Claim 13
Independent Claim 109 words
A method of allowing a user to lock a mobile communication unit in a cellular communication system, the cellular communication system including a mobile switching center and the mobile communication unit being identified to the mobile switching center by a mobile identification number, the method comprising: the user remotely and without operator assistance accessing the mobile switching center; receiving the mobile identification number from the user of the mobile communication to be locked at the mobile switching center; and the user instructing the mobile switching center to inhibit operation of any mobile communication unit once identified by the mobile switching center as having the same received mobile identification number.
Claim 14
Dependent Claim 27 words
The method of claim 11 wherein the step of receiving the mobile identification number further comprises the step of receiving a personal identification code from the user.
Claim 15
Dependent Claim 20 words
The method of claim 11 wherein the step of accessing comprises the step of accessing via a land line telephone.
Claim 16
Dependent Claim 23 words
The method of claim 11 wherein the step of accessing comprising the step of accessing via a particular user identified land line telephone.
Claim 17
Dependent Claim 20 words
The method of claim 11 wherein the step of accessing comprises the step of accessing via a mobile communication unit.
Claim 18
Dependent Claim 25 words
The method of claim 11 further comprising the step of confirming inhibited operation of the mobile communication unit identified by the communicated mobile identification number.
Claim 19
Dependent Claim 27 words
The method of claim 11 wherein the step of instructing further comprises the step of receiving an activation code at the mobile switching center from the user.
Claim 20
Dependent Claim 77 words
The method of claim 11 wherein the step of accessing comprises the step of registering the mobile communication unit with the mobile switching center and the step of instructing comprises determining the time period since the mobile communication unit last registered with the mobile switching center and inhibiting operation of any mobile communication unit once identified by the mobile switching center as having the same received mobile identification number if the time period exceeds a threshold value.
Claim 21
Independent Claim 189 words
An apparatus for locking a mobile communication unit in a cellular communication system, the mobile communication unit being identified within the cellular communication system by a mobile identification number, the apparatus comprising: a mobile switching center for processing communications within the cellular communication system; means for remotely accessing the mobile switching center, said means for remotely accessing the mobile switching center comprising means for registering the mobile communication unit with the mobile switching center; means for communicating the mobile identification number of the mobile communication unit to be locked to the mobile switching center; and means for instructing the mobile switching center to inhibit operation of any mobile communication unit once identified by the mobile switching center as having the same communicated mobile identification number, said means for instructing the mobile switching center comprising means for determining the time period since the mobile communication unit last registered with the mobile switching center and for instructing the mobile switching center to inhibit operation of any mobile communication unit identified by the mobile switching center as having the same communicated mobile identification number if the time period exceeds a threshold value.
Claim 22
Independent Claim 189 words
An apparatus for locking a mobile communication unit in a cellular communication system, the mobile communication unit being identified within the cellular communication system by a mobile identification number, the apparatus comprising: a mobile switching center for processing communications within the cellular communication system; means for remotely accessing the mobile switching center, said means for remotely accessing the mobile switching center comprising means for registering the mobile communication unit with the mobile switching center; means for communicating the mobile identification number of the mobile communication unit to be locked to the mobile switching center; and means for instructing the mobile switching center to inhibit operation of any mobile communication unit once identified by the mobile switching center as having the same communicated mobile identification number, said means for instructing the mobile switching center comprising means for determining the time period since the mobile communication unit last registered with the mobile switching center and for instructing the mobile switching center to inhibit operation of any mobile communication unit identified by the mobile switching center as having the same communicated mobile identification number if the time period exceeds a threshold value.

References Cited (Backward Citations)

US4958368A Cited
US5031204A Cited
US5046082A Cited
US5303285A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-05-14 1999-11-13 2000-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-05-14 2003-11-13 2004-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-05-14 2007-11-13 2008-05-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag