The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 1985
Filed:
Dec. 23, 1981
Michele Bovio, Brosso, IT;
Walter Gillone, Ivrea, IT;
Ing. C. Olivetti & C., S.p.A., Ivrea, IT;
Abstract
A cash register with a keyboard (31), journal printer (47) and a check slip printer (32) is controlled by a microprocessor system with a CPU (102), a program ROM (105) and a RAM (106) including various registers for storing running totals of various types. The printer (32) prints till receipts and end-of-day check slips authenticating non-rigged operation of the cash register. Thus, each time such a check slip is printed a fresh bit of an EPROM memory (106) is set from 1 to 0 under control of a register (181) and a pulser circuit (191), the EPROM being fixed non-removably to the machine and shielded aginst UV erasure. The printed check slip includes the serial number thereof as represented by the EPROM contents, a special symbol identifying a non-manipulatable machine and the machine number recorded in a section (161) of the EPROM. In a modified embodiment the EPROM is replaced by a counter, e.g. a mechanical counter, which can only be incremented (and cannot be decremented or zeroized). The counter is incremented each time a check slip is printed and the number in the counter is included in the printout. Check slips with unbroken series of check slip numbers provide evidence of non-rigged operation.