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Browse Prior Art Database

Release of Passbook After Power Failure

IP.com Disclosure Number: IPCOM000035717D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Nicklous, MS: AUTHOR

Abstract

A self-service banking machine with a passbook unit enables bank customers to perform passbook transactions. For this purpose, the passbook must be inserted into the passbook unit.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 81% of the total text.

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Release of Passbook After Power Failure

A self-service banking machine with a passbook unit enables bank customers to perform passbook transactions. For this purpose, the passbook must be inserted into the passbook unit.

If the power fails during passbook processing, the book will be trapped in the machine. This could greatly inconvenience the bank customer, since without the passbook, access to the account is generally not possible.

In addition, when the power is restored, the banking machine must decide what to do with the book that was trapped in the machine. The book can either be moved into the passbook retain bin which is emptied by bank personnel, or it can be returned to the customer if he is still waiting in front of the machine.

A banking machine, such as the IBM 4731, comprises a real-time battery- buffered clock as well as a non-volatile memory (NVM).

When the machine is running, the time of day is read from the clock and saved in NVM once every second. If the power fails, the time stored in NVM will no longer be updated, but the battery-buffered real- time clock will continue to run.

When power returns, the microcode book return routine uses the current time from the real-time clock and the last time stored in NVM to compute the length of time the power was down. This time is compared with a value that the bank can program in the banking machine.

If the power was down for less than the number of minutes the bank programmed, a screen will be displayed...