Automated warranty registration

• US 6,163,693 A
• Filed: 12/16/1997
• Issued: 12/19/2000
• Est. Priority Date: 12/16/1997
• Status: Expired due to Term

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Rydbeck, Nils R. C.
• Primary Examiner(s): Tsang, Fan
• Assistant Examiner(s): Ferguson, Keith
• Application Number:
  US08/991,907
• Time in Patent Office: 1,099 Days
• Field of Search: 455/466, 455/418, 455/420, 455/411, 455/435, 455/432, 455/422, 455/575, 455/90, 455/550, 455/566, 455/409, 455/412, 455/414, 455/403, 455/419, 364/479.06, 364/479.07
• US Class Current: 455/418
• CPC Class Codes: H04M 15/47 Fraud detection or prevention means
• CPC Class Codes: H04M 2215/0148 Fraud detection or prevention means
• CPC Class Codes: H04M 2215/2026 Wireless network, e.g. GSM, PCS, TACS
• CPC Class Codes: H04M 2215/32 Involving wireless systems
• CPC Class Codes: H04W 4/24 Accounting or billing
• CPC Class Codes: H04W 8/265 for initial activation of new user

Abstract

A method for determining when a wireless communications device'"'"'s warranty period begins uses the wireless communications device'"'"'s first use date as a proxy for the start of the warranty period. After being powered-on, the wireless communications device checks a non-volatile warranty registration status-flag. If that flag indicates that the wireless communications device has not previously registered, the wireless communications device sends a unique identifier, such as a serial number, to a warranty registration center. The warranty registration center stores the identifier with an associated registration date stamp. The wireless communications device then changes the warranty registration status flag to indicate that the device has been registered for warranty purposes. Once this automated warranty registration is complete, the wireless communications device proceeds with normal operation. The recorded first use date may be used as the start of the warranty period.

Claims

1. A method for automatic warranty registration of a wireless communications device, comprising:

a) setting a warranty registration status flag in said wireless communications device to a first value indicating that said wireless communications device has not been previously registered;

b) checking said warranty registration status flag in response to the wireless communications device being powered up;

c) sending a unique identifier from said wireless communications device to a warranty registration center if said warranty registration status flag is said first value;

d) storing said identifier with an associated registration date at said warranty registration center; and

e) changing said warranty registration status flag to a second value indicating that said wireless communications device has been registered.

2. The method of claim 1 further including receiving a registration acknowledgment from said warranty registration center at said wireless communications device before changing said warranty registration status flag to said second value.

3. The method of claim 1 further comprising measuring a warranty period for said wireless communications device from said registration date.

4. The method of claim 1 further comprising:

a) setting an activation status flag in said wireless communications device to a first value indicating that said wireless communications device has not been previously activated;

b) activating said wireless communications device; and

c) thereafter changing said activation status flag to a second value indicating that said wireless communications device has been activated.

5. The method of claim 1 further including:

a) storing routing information in said wireless communications device;

b) recalling said routing information; and

c) establishing a connection between said wireless communications device and said warranty registration center based on said routing information.

6. The method of claim 1 wherein said identifier is an electronic serial number of a cellular telephone.

7. The method of claim 1 wherein the wireless communications device manufacturer performs said setting of said warranty registration status flag to said first value.

8. The method of claim 1 wherein said warranty registration center includes a plurality of computers at dispersed locations.

9. The method of claim 1 wherein said warranty registration center includes a voice response unit and wherein said user responds to said voice response unit.

10. The method of claim 1 wherein said sending of said identifier is via a dual-tone multi-frequency generator.

11. The method of claim 1 wherein said wireless communications device includes a dual-tone multi-frequency detector and said wireless communications device responds to commands from said warranty registration center via said dual-tone multi-frequency detector.

12. The method of claim 1 further including operating said wireless communications device in a wireless communications system and wherein said sending of said identifier is via said wireless communications system.

13. The method of claim 12 wherein said wireless communications system is one of a DAMPS, PCS, GSM, CDMA, or digital type system.

14. The method of claim 12 wherein said wireless communications system is an analog system.

15. A method for automatic warranty registration of a wireless communications device, comprising:

a) setting a warranty registration status flag in said wireless communications device to a first value indicating that said wireless communications device has not been previously registered;

b) storing warranty registration information in said wireless communications device, said warranty registration information including a unique identifier for said wireless communications device and routing information;

c) thereafter checking said warranty registration status flag in response to the wireless communications device being powered up;

d) recalling said routing information;

e) thereafter sending, based on said routing information, said identifier from said wireless communications device to said warranty registration center if said warranty registration status flag is said first value;

f) receiving said identifier at said warranty registration center;

g) storing said identifier with an associated registration date at said warranty registration center;

h) thereafter changing said warranty registration status flag to a second value indicating that said wireless communications device has been registered.

16. The method of claim 15 further comprising:

a) setting an activation status flag in said wireless communications device to a first value indicating that said wireless communications device has not been previously activated by a service provider;

b) activating said wireless communications device; and

c) thereafter changing said activation status flag to a second value indicating that said wireless communications device has been activated.

17. The method of claim 15 further comprising measuring a warranty period for said wireless communications device from said registration date.

18. The method of claim 15 wherein said routing information is a toll-free phone number.

19. The method of claim 15 wherein said identifier is a serial number.

20. The method of claim 15 wherein said wireless communications system is one of a DAMPS, PCS, GSM, CDMA, or digital type system.

21. The method of claim 15 wherein said warranty registration center includes a voice response unit and wherein said user responds to said voice response unit.

22. The method of claim 15 wherein said sending of said identifier is via a dual-tone multi-frequency generator.

23. The method of claim 15 wherein said wireless communications device includes a dual-tone multi-frequency detector and said wireless communications device automatically responds to commands from said warranty registration center via said dual-tone multi-frequency detector.