Patent GB-1285443-A (GB)
Title: Improvements in or relating to access-control equipment and item-dispensing systems including such equipment
Inventor: RANDALL WILLIAM EDWARD
IPC: G07F7/10
Filed: 1968-08-30
Abstract: 1285443 Credit card systems; checking credit cards SMITHS INDUSTRIES Ltd and CHUBB & SON'S LOCK & SAFE CO Ltd 29 Aug 1969 [30 Aug 1968] 41423/68 Headings G4M G4T G4V and G4X To control access to a facility, e.g. entry to a restricted area, use of a service or the dispensing of items, equipment is provided which derives a read-out of information borne by a presented token, detects whether the token complies with a predetermined criterion for access, enables access in dependence upon the read-out and on'y if the criterion is detected, returns the token only if the criterion is detected, and retains the token only if the criterion is not detected. The cash-dispensing equipment shown is for use with tokens each in the form of a card, Fig. 1 (not shown), having a number of pulses magnetically recorded on a high-coercivity coating and a second magnetic recording on a low-coercivity coating to provide "noise" masking the pulse recording. The expiry date of the card, the account number and the account holder's name are embossed on the card. Either the finding of the correct number of pulses or the establishing from the expiry date of the card that the card is still in force may be the criterion for access. In operation, a card presented at 11 is scanned by a photo -electric device 18, 19 and if it is found to have two darkened areas (4, Fig. 1) in a predetermined position, a signal passes to gate 20 which opens a shutter 15 through switch 22 and solenoid 14 to admit the card and which energizes a motor 26 through switch 23 to drive cardmoving rollers 27-29. The "noise" is erased at 30 and the number of pulses remaining in the high-coercivity coating are counted at 31, 33. If the number is correct an output signal is fed to line 34. A roll 28<SP>1</SP> bearing an inked ribbon 35 is then lowered so that the embossed information born by the card is printed on a tape 37 and then read by a photo-electric device 42 and passed to a store 43. The card subsequently actuates a switch 44 to close shutter 15 and stop motor 26. The customer enters his personal identification number on buttons 45 and this number together with the information in store 43, the information on lead 34 and the number of the terminal illustrated is then fed to a central computer. If the computer finds that the card isin force and is not one that has been reported lost or stolen and that the state of the account is satisfactory and that the personal identification number entered corresponds to the one associated with the account number, then the computer sends a signal to unit 55 to operate the dispenser 21 via gate 56, only if the signal on line 34, which is applied to gate 56, is satisfactory. The dispense signal from the computer is coded and is checked at the terminal before operating dispenser 21, as described in Specification 1,285,445 A timer 57 then operates to open shutter 15 and operate motor 26 to return the card. Security and alarms.-If the computer finds that the personal identification number entered does not correspond with the account number or that the status of the account is not satisfactory, then no dispensing is effected, the card is returned and a hammer 58 prints on tape 37 to signify "no withdrawal". If the card is found to be not in force or is found to be one of those reported lost or stolen or if the check by the means 30-33 of the pulse recordings reveals an unsatisfactory card, then no dispensing is effected, the hammer 58 is operated and the card is moved into a bin 61 and not returned. If the dispenser does not operate after an approval signal has been sent to the terminal or if the dispenser is interfered with, then a warning device at the computer centre is energized. If repeated attempts to withdraw cash are made with the same card using trial personal identification numbers, then motor 26 is energized to move the card to bin 61. If dispenser 21 becomes empty, an "EMPTY" sign is illuminated and unit 20 is disabled. Various other signs are illuminated at various times under the control of various timers so as to instruct the customer how to operate the equipment, or to inform him that no debit has been made or that his card has been retained.