Cumulative operational timers and methods for cellular telephone

Details Cumulative operational timers and methods for cellular telephone Cumulative operational timers and methods for cellular telephone

1991-09-26

1992-11-17

Miska, Vit W.

Horology: time measuring systems or devices

Controlled by a disparate device

Telephone

368 10, 368113, 379 59, G04B 4700, H04M 1100

Patent

active

051649233

ABSTRACT:
Cumulative timers are used in a cellular telephone to record total mobile "ON" time and total transmitter "ON" time. These "ON" times are periodically stored in long term nonvolatile memory. The period is chosen such that a time-limited number of write cycles of the nonvolatile memory are not exceeded over the life of the dual mode subscriber unit. As a consequence of utilizing periodic updates, rather than power-up event driven updates, solves this problem of the limited lifetimes of the nonvolatile memory device is solved. The use of the cumulative timers and its related computational method in a mobile telephone permits factory personnel to calculate actual mean time between failure data based upon customer returns. Timer information provided by the cumulative timers and computational method may also be used to indicate warranty fraud.

REFERENCES:
patent: 4903327 (1990-02-01), Raghuram
patent: 5036532 (1991-07-01), Metroka et al.
patent: 5046082 (1991-09-01), Zicker et al.

Affiliated with

Also associated with

Rating

Cumulative operational timers and methods for cellular telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cumulative operational timers and methods for cellular telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cumulative operational timers and methods for cellular telephone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1177179