Disposable wireless communication device adapted to prevent fraud

• US 5,815,807 A
• Filed: 01/31/1996
• Issued: 09/29/1998
• Est. Priority Date: 01/31/1996
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Osmani, Rashid Masood, Metroka, Michael P.
• Primary Examiner(s): Cumming, William
• Assistant Examiner(s): GELIN, JEAN ALLAND
• Application Number:
  US08/594,978
• Time in Patent Office: 972 Days
• Field of Search: 455/410, 455/405, 455/406, 455/407, 455/409, 455/550, 455/565, 455/572, 455/573, 379/144, 379/114, 379/145, 379/91
• US Class Current: 455/410
• CPC Class Codes: H04L 63/1408 by monitoring network traffic monitoring network traffic per se H04L43/00
• CPC Class Codes: H04M 15/00 Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
• CPC Class Codes: H04M 17/00 Prepayment of wireline communication systems, wireless communication systems or telephone systems using a coded card to authorise calls from a telephone set H04M1/675
• CPC Class Codes: H04M 17/005 Disposable prepaid communication devices
• CPC Class Codes: H04W 12/125 Protection against power exhaustion attacks
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A disposable portable radiotelephone subscriber unit (101) comprises a power supply (255), a transceiver (205, 207) and a controller (215). The power supply (255) has stored therein a predetermined measure of power capacity (281). The transceiver (205, 207) is permitted to operate for a predetermined period of time (405) responsive to the predetermined measure of the power capacity (281). The controller (215) monitors a rate of depletion of the predetermined measure of the power capacity (281). The controller (215) permits operation of the transceiver (205, 207) when the power capacity (281) is being depleted at a desirable rate, thereby decreasing the predetermined period of time (405) that the transceiver (205, 207) is permitted to operate. The controller (215) prevents operation of the transceiver (205, 207) when the power capacity (281) is being depleted at an undesirable rate, thereby prolonging the predetermined period of time (405) that the transceiver (205, 207) is permitted to operate. Alternatively, the power supply (255) may be a memory unit (259) and the power capacity (281) may be calling time (279) or a future electronic date (275).

Claims

1. A disposable wireless communication device comprising:

a storage unit having stored therein a predetermined measure of a communication resource;

communication circuitry operatively coupled to the storage unit and permitted to operate for a predetermined period of time responsive to the predetermined measure of the communication resource; and

a controller operatively coupled to the storage unit and the communication circuitry and adapted for;

monitoring a rate of depletion of the communication resource over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of the communication circuitry when the communication resource is being depleted at the desirable rate, thereby decreasing the predetermined period of time that the communication circuitry is permitted to operate; and

preventing operation of the communication circuitry when the communication resource is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the communication circuitry is permitted to operate.

2. A disposable wireless communication device according to claim 1 wherein the communication resource is being depleted at the undesirable rate when the communication resource is restored, thereby increasing the predetermined period of time that the communication circuitry is permitted to operate.

3. A disposable wireless communication device according to claim 1 wherein the communication resource is being depleted at the undesirable rate when the communication resource is maintained, thereby maintaining the predetermined period of time that the communication circuitry is permitted to operate.

4. A disposable wireless communication device according to claim 1 wherein the communication resource is being depleted at the undesirable rate when the communication resource is being depleted at a rate slower than a predetermined rate of depletion, thereby prolonging the predetermined period of time that the communication circuitry is permitted to operate.

5. A disposable wireless communication device according to claim 1 wherein the communication resource is being depleted at the undesirable rate when the storage unit is operatively decoupled from the communication circuitry.

6. A disposable wireless communication device according to claim 1 wherein the controller is further adapted for:

counting a number of times the disposable wireless communication device is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the communication circuitry when the accumulated count exceeds the predetermined count.

7. A disposable wireless communication device according to claim 1 wherein the controller is further adapted for:

preventing operation of the communication circuitry when the communication resource is substantially depleted, thereby ending the predetermined period of time that the communication circuitry is permitted to operate.

8. A disposable wireless communication device according to claim 1 wherein the storage unit is a power supply and the communication resource is power capacity.

9. A disposable wireless communication device according to claim 1 wherein the storage unit is a memory unit and the communication resource is time.

10. A disposable wireless communication device according to claim 9 wherein the time is a future date in time.

11. A disposable wireless communication device according to claim 9 wherein the time is communication time.

12. A disposable wireless communication device according to claim 1 wherein the communication circuitry comprises pager circuitry.

13. A disposable wireless communication device according to claim 1 wherein the communication circuitry comprises radiotelephone circuitry.

14. A disposable portable radiotelephone subscriber unit comprising:

a power supply having stored therein a predetermined measure of power capacity;

a transceiver operatively coupled to the power supply and permitted to operate for a predetermined period of time responsive to the predetermined measure of the power capacity; and

a controller operatively coupled to the power supply and the transceiver and adapted for;

monitoring a rate of depletion of the predetermined measure of the power capacity over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of the transceiver when the power capacity is being depleted at the desirable rate, thereby decreasing the predetermined period of time that the transceiver is permitted to operate; and

preventing operation of the transceiver when the power capacity is being depleted the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

15. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the power capacity is being depleted at the undesirable rate when the power capacity is restored, thereby increasing the predetermined period of time that the transceiver is permitted to operate.

16. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the power capacity is being depleted at the undesirable rate when the power capacity is maintained, thereby maintaining the predetermined period of time that the transceiver is permitted to operate.

17. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the power capacity is being depleted at the undesirable rate when the power capacity is being depleted at a rate slower than a predetermined rate of depletion, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

18. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the power capacity is being depleted at the undesirable rate when the power supply is operatively decoupled from at least one of the transceiver and the controller.

19. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the controller is further adapted for:

counting a number of times the disposable portable radiotelephone subscriber unit is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the transceiver when the accumulated count exceeds the predetermined count.

20. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the controller is further adapted for:

preventing operation of the transceiver when the power capacity is substantially depleted, thereby ending the predetermined period of time that the transceiver is permitted to operate.

21. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the power supply is a battery.

22. A disposable portable radiotelephone subscriber unit according to claim 14 wherein the predetermined measure of the power capacity comprises a predetermined measure of voltage.

23. A disposable portable radiotelephone subscriber unit according to claim 14 further comprising:

a switch operatively coupled to the transceiver, the controller and the power supply, and adapted to selectively couple the power supply to the transceiver and the controller.

24. A disposable portable radiotelephone subscriber unit comprising:

a memory unit having stored therein a predetermined measure of calling time;

a transceiver operatively coupled to the memory unit and permitted to operate for a predetermined period of time responsive to the predetermined measure of the calling time; and

a controller operatively coupled to the memory unit and the transceiver and adapted for;

monitoring a rate of depletion of the calling time over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of the transceiver when the calling time is being depleted at the desirable rate, thereby decreasing the predetermined period of time that the transceiver is permitted to operate; and

preventing operation of the transceiver when the calling time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

25. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the calling time is being depleted at the undesirable rate when the calling time is restored, thereby increasing the predetermined period of time that the transceiver is permitted to operate.

26. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the calling time is being depleted at the undesirable rate when the calling time is maintained, thereby maintaining the predetermined period of time that the transceiver is permitted to operate.

27. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the calling time is being depleted at the undesirable rate when the calling time is being depleted at a rate slower than a predetermined rate of depletion, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

28. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the calling time is being depleted at the undesirable rate when the memory unit is operatively decoupled from at least one of the transceiver and the controller.

29. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the controller is further adapted for:

counting a number of times the disposable portable radiotelephone subscriber unit is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the transceiver when the accumulated count exceeds the predetermined count.

30. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the controller is further adapted for:

preventing operation of the transceiver when the calling time is substantially depleted, thereby ending the predetermined period of time that the transceiver is permitted to operate.

31. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the controller further comprises:

a timer operatively coupled to the transceiver and adapted to determine the calling time for the transceiver.

32. A disposable portable radiotelephone subscriber unit according to claim 24 wherein the transceiver receives a communication signal from a base station indicative of the calling time for the transceiver.

33. A disposable portable radiotelephone subscriber unit comprising:

a memory unit having stored therein a predetermined measure of a future electronic date in time;

a transceiver operatively coupled to the memory unit and permitted to operate for a predetermined period of time responsive to the predetermined measure of the future electronic date in time; and

a controller operatively coupled to the memory unit and the transceiver and adapted for;

monitoring a rate of depletion of the future electronic date in time over time wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of the transceiver when the future electronic date in time is being depleted at the desirable rate, thereby decreasing the predetermined period of time that the transceiver is permitted to operate; and

preventing operation of the transceiver when the future electronic date in time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

34. A disposable portable radiotelephone subscriber unit according to claim 33 wherein the future electronic date in time is being depleted at the undesirable rate when the memory unit is operatively decoupled from at least one of the transceiver and the controller.

35. A disposable portable radiotelephone subscriber unit according to claim 33 wherein the controller is further adapted for:

counting a number of times the disposable portable radiotelephone subscriber unit is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the transceiver when the accumulated count exceeds the predetermined count.

36. A disposable portable radiotelephone subscriber unit according to claim 33 wherein the future electronic date in time is responsive to a date when the disposable portable radiotelephone subscriber unit is manufactured.

37. A disposable portable radiotelephone subscriber unit according to claim 33 wherein the future electronic date in time is responsive to a date when the disposable portable radiotelephone subscriber unit is first activated.

38. A disposable portable radiotelephone subscriber unit according to claim 37 wherein the disposable portable radiotelephone subscriber unit is first activated by a provider of a communication system in which the disposable portable radiotelephone subscriber unit operates.

39. A disposable portable radiotelephone subscriber unit according to claim 37 wherein the disposable portable radiotelephone subscriber unit is first activated by a user of the disposable portable radiotelephone subscriber unit.

40. A disposable portable radiotelephone subscriber unit according to claim 33 wherein the memory unit further comprises:

an identification sequence the disposable portable radiotelephone subscriber unit, wherein the future electronic date in time is associated within the identification sequence.

41. A disposable portable radiotelephone subscriber unit according to claim 40 wherein the identification sequence is a phone number.

42. A disposable portable radiotelephone subscriber unit according to claim 40 wherein the identification sequence is an electronic serial number.

43. A disposable portable radiotelephone subscriber unit according to claim 33 wherein the controller is further adapted for:

preventing operation of the transceiver when the future electronic date has expired.

44. A disposable portable radiotelephone subscriber unit comprising:

a power supply having stored therein a predetermined measure of power capacity;

a memory unit having stored therein a predetermined measure of a future electronic date in time;

a transceiver operatively coupled to the power supply and the memory unit and permitted to operate for a predetermined period of time responsive to the predetermined measure of the power capacity and the predetermined measure of the future electronic date in time; and

a controller operatively coupled to the power supply and the transceiver and adapted for;

monitoring a rate of depletion of the predetermined measure of the power capacity over time and the predetermined measure of the future electronic date in time over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of the transceiver when the power capacity and the future electronic date in time are being depleted at the desirable rate, thereby decreasing the predetermined period of time that the transceiver is permitted to operate; and

preventing operation of the transceiver when at least one of the power capacity and the future electronic date in time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

45. A disposable portable radiotelephone subscriber unit comprising:

a memory unit having stored therein a predetermined measure of calling time over time and a predetermined measure of a future electronic date in time over time, wherein the rate is represented by a desireable rate or an undesireable rate;

a transceiver operatively coupled to the memory unit and permitted to operate for a predetermined period of time responsive to the calling time and the future electronic date in time; and

a controller operatively coupled to the memory unit and the transceiver and adapted for;

monitoring a rate of depletion of the calling time and the future electronic date in time;

permitting operation of the transceiver when the calling time and the future electronic date in time are being depleted at the desirable rate, thereby decreasing the predetermined period of time that the transceiver is permitted to operate; and

preventing operation of the transceiver when at least one of the calling time and the future electronic date in time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

46. A method for operating a disposable wireless communication device comprising the steps of:

monitoring a rate of depletion of a communication resource stored in a storage unit over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of communication circuitry when the communication resource is being depleted at the desirable rate, thereby decreasing a predetermined period of time that the communication circuitry is permitted to operate; and

preventing operation of the communication circuitry when the communication resource is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the communication circuitry is permitted to operate.

47. A method according to claim 46 wherein the communication resource is being depleted at the undesirable rate when the communication resource is restored, thereby increasing the predetermined period of time that the communication circuitry is permitted to operate.

48. A method according to claim 46 wherein the communication resource is being depleted at the undesirable rate when the communication resource is maintained, thereby maintaining the predetermined period of time that the communication circuitry is permitted to operate.

49. A method according to claim 46 wherein the communication resource is being depleted at the undesirable rate when the communication resource is being depleted at a rate slower than a predetermined rate of depletion, thereby prolonging the predetermined period of time that the communication circuitry is permitted to operate.

50. A method according to claim 46 wherein the communication resource is being depleted at the undesirable rate when the storage unit is operatively decoupled from the communication circuitry.

51. A method according to claim 46 further comprising the steps of:

counting a number of times the disposable wireless communication device is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the communication circuitry when the accumulated count exceeds the predetermined count.

52. A method according to claim 46 further comprising the step of:

preventing operation of the communication circuitry when the communication resource is substantially depleted, thereby ending the predetermined period of time that the communication circuitry is permitted to operate.

53. A method according to claim 46 wherein the storage unit is a power supply and the communication resource is power capacity.

54. A method according to claim 46 wherein the storage unit is a memory unit and the communication resource is time.

55. A method according to claim 54 wherein the time is a future date in time.

56. A method according to claim 54 wherein the time is communication time.

57. A method according to claim 46 wherein the communication circuitry comprises pager circuitry.

58. A method according to claim 46 wherein the communication circuitry comprises radiotelephone circuitry.

60. A method according to claim 57 wherein the power capacity is being depleted at the undesirable rate when the power capacity is restored, thereby increasing the predetermined period of time that the transceiver is permitted to operate.

61. A method according to claim 57 wherein the power capacity is being depleted at the undesirable rate when the power capacity is maintained, thereby maintaining the predetermined period of time that the transceiver is permitted to operate.

62. A method according to claim 57 wherein the power capacity is being depleted at the undesirable rate when the power capacity is being depleted at a rate slower than a predetermined rate of depletion, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

63. A method according to claim 57 wherein the power capacity is being depleted at the undesirable rate when the power supply is operatively decoupled from at least one of the transceiver and the controller.

65. A method according to claim 57 further comprising the step of:

preventing operation of the transceiver when the power capacity is substantially depleted, thereby ending the predetermined period of time that the transceiver is permitted to operate.

66. A method according to claim 57 further comprising the step of:

selectively coupling the power supply to the transceiver.

68. A method according to claim 65 wherein the calling time is being depleted at the undesirable rate when the calling time is restored, thereby increasing the predetermined period of time that the transceiver is permitted to operate.

69. A method according to claim 65 wherein the calling time is being depleted at the undesirable rate when the calling time is maintained, thereby maintaining the predetermined period of time that the transceiver is permitted to operate.

70. A method according to claim 65 wherein the calling time is being depleted at the undesirable rate when the calling time is being depleted at a rate slower than a predetermined rate of depletion, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

71. A method according to claim 65 wherein the calling time is being depleted at the undesirable rate when the memory unit is operatively decoupled from at least one of the transceiver and the controller.

73. A method according to claim 65 further comprising the step of:

preventing operation of the transceiver when the calling time is substantially depleted, thereby ending the predetermined period of time that the transceiver is permitted to operate.

74. A method according to claim 65 further comprising the step of:

determining the accumulated calling time for the transceiver.

75. A method according to claim 65 further comprising the step of:

receiving a communication signal from a base station indicative of the calling time for the transceiver.

77. A method according to claim 74 wherein the future electronic date in time is being depleted at the undesirable rate when the memory unit is operatively decoupled from at least one of the transceiver and the controller.

79. A method according to claim 74 wherein the future electronic date in time is responsive to a date when the disposable portable radiotelephone subscriber unit is manufactured.

80. A method according to claim 74 wherein the future electronic date in time is responsive to a date when the disposable portable radiotelephone subscriber unit is first activated.

83. A method according to claim 74 further comprising the step of:

preventing operation of the transceiver when the future electronic date has expired.

59. A method for operating a disposable portable radiotelephone subscriber unit comprising the steps of:

monitoring, by a controller, a rate of depletion of a predetermined measure of a power capacity stored in a power supply over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting, by the controller, operation of a transceiver when the power capacity is being depleted at the desirable rate, thereby decreasing a predetermined period of time that the transceiver is permitted to operate; and

preventing, by the controller, operation of the transceiver when the power capacity is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

64. A method according to claim 59 further comprising the steps of:

counting a number of times the disposable portable radiotelephone subscriber unit is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the transceiver when the accumulated count exceeds the predetermined count.

67. A method of operating a disposable portable radiotelephone subscriber unit comprising the steps of:

monitoring, by a controller, a rate of depletion of a calling time stored in a memory unit over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting, by the controller, operation of a transceiver when the calling time is being depleted at the desirable rate, thereby decreasing a predetermined period of time that the transceiver is permitted to operate; and

preventing, by the controller, operation of the transceiver when the calling time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

72. A method according to claim 67 further comprising the steps of:

counting a number of times the disposable portable radiotelephone subscriber unit is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the transceiver when the accumulated count exceeds the predetermined count.

76. A method for operating a disposable portable radiotelephone subscriber unit comprising the steps of:

monitoring, by a controller, a rate of depletion of a future electronic date in time stored in a memory unit over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting, by the controller, operation of a transceiver when the future electronic date in time is being depleted at the desirable rate, thereby decreasing a predetermined period of time that the transceiver is permitted to operate; and

preventing, by the controller, operation of the transceiver when the future electronic date in time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

78. A method according to claim 76 further comprising the steps of:

counting a number of times the disposable portable radiotelephone subscriber unit is activated to produce an accumulated count;

comparing the accumulated count to a predetermined count; and

preventing operation of the transceiver when the accumulated count exceeds the predetermined count.

81. A method according to claim 78 wherein the disposable portable radiotelephone subscriber unit is first activated by a provider of a communication system in which the disposable portable radiotelephone subscriber unit operates.

82. A method according to claim 78 wherein the disposable portable radiotelephone subscriber unit is first activated by a user of the disposable portable radiotelephone subscriber unit.

84. A method for operating a disposable portable radiotelephone subscriber unit comprising the steps of:

monitoring a rate of depletion of a predetermined measure of a power capacity stored in a power supply over time and a predetermined measure of a future electronic date in time stored in a memory unit over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of a transceiver when the power capacity and the future electronic date in time are being depleted at the desirable rate, thereby decreasing the predetermined period of time that the transceiver is permitted to operate; and

preventing operation of the transceiver when at least one of the power capacity and the future electronic date in time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.

85. A method for operating a disposable portable radiotelephone subscriber unit comprising the steps of:

monitoring a rate of depletion of a calling time stored in a memory unit over time and a future electronic date in time stored in the memory unit over time, wherein the rate is represented by a desireable rate or an undesireable rate;

permitting operation of a transceiver when the calling time and the future electronic date in time are being depleted at the desirable rate, thereby decreasing a predetermined period of time that the transceiver is permitted to operate; and

preventing operation of the transceiver when at least one of the calling time and the future electronic date in time is being depleted at the undesirable rate, thereby prolonging the predetermined period of time that the transceiver is permitted to operate.