EP 0155126 A2 19850918 - Self tuning coin recognition system.
Title (en)
Self tuning coin recognition system.
Title (de)
Selbstabstimmendes Münzerkennungssystem.
Title (fr)
Système à auto-accordement pour la reconnaissance de pièces de monnaie.
Publication
Application
Priority
US 58525384 A 19840301
Abstract (en)
A self-tuning coin testing apparatus having a coin sensor circuit which produces an output signal indicative of a parameter characteristic of the coins which are tested by the coin sensor and a programmed microprocessor which stores an initial acceptance limit, determines whether the output signal from the coin sensor is indicative of a valid coin, stores a signal based on the output signal for each valid coin, calculates a statistical function based on the stored signal, and finally computes and stores a new acceptance limit based on the stored signals for a predetermined number of previously accepted coins. The statistical function, is preferably weighted so that it is based upon values for only a predetermined number of the most recently accepted coins so that a recent average is maintained.
IPC 1-7
IPC 8 full level
G07D 5/00 (2006.01); G07D 5/08 (2006.01); G07F 5/26 (2006.01); G07F 7/10 (2006.01); G07F 9/04 (2006.01)
IPC 8 main group level
CPC (source: EP)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0155126 A2 19850918; EP 0155126 A3 19870107; EP 0155126 B1 19910227; EP 0155126 B2 20010711; AT E61136 T1 19910315; AU 4110285 A 19850924; AU 584330 B2 19890525; BR 8505538 A 19860218; CA 1228921 A 19871103; DE 3581817 D1 19910404; DK 502785 A 19860102; DK 502785 D0 19851031; ES 540860 A0 19861116; ES 8700886 A1 19861116; GR 850518 B 19850701; HK 36396 A 19960308; IE 56794 B1 19911218; IE 850477 L 19850901; JP H04211888 A 19920803; JP H0727585 B2 19950329; JP H0785277 B2 19950913; JP S61501349 A 19860703; KR 850700280 A 19851226; KR 930007271 B1 19930804; MX 160403 A 19900216; WO 8504037 A1 19850912; ZA 851248 B 19851127
DOCDB simple family (application)
EP 85301409 A 19850301; AT 85301409 T 19850301; AU 4110285 A 19850301; BR 8505538 A 19850301; CA 475454 A 19850228; DE 3581817 T 19850301; DK 502785 A 19851031; ES 540860 A 19850301; GR 850100518 A 19850228; HK 36396 A 19960229; IE 47785 A 19850226; JP 2705391 A 19910221; JP 50132885 A 19850301; KR 850700280 A 19851101; MX 20447085 A 19850228; US 8500369 W 19850301; ZA 851248 A 19850219