A coin identification device includes: a first magnetic sensor detecting an amount of magnetic variation while the coin passes in the carrying direction; a second magnetic sensor installed where the second magnetic sensor detects a passage of an arc of a small-diameter coin when the first magnetic sensor detects a passage of the small-diameter coin; and a third magnetic sensor installed where the third magnetic sensor does not detect a passage of an arc of the small-diameter coin when the first magnetic sensor and the second magnetic sensor detect a passage of the small-diameter coin and detects a passage of an arc of a large-diameter coin; and an identification control unit identifying an outer diameter of the small-diameter coin and the large-diameter coin based on the amount of magnetic variation of the first magnetic sensor.

A coin identification device includes: a first magnetic sensor detecting an amount of magnetic variation while the coin passes in the carrying direction; a second magnetic sensor installed where the second magnetic sensor detects a passage of an arc of a small-diameter coin when the first magnetic sensor detects a passage of the small-diameter coin; and a third magnetic sensor installed where the third magnetic sensor does not detect a passage of an arc of the small-diameter coin when the first magnetic sensor and the second magnetic sensor detect a passage of the small-diameter coin and detects a passage of an arc of a large-diameter coin; and an identification control unit identifying an outer diameter of the small-diameter coin and the large-diameter coin based on the amount of magnetic variation of the first magnetic sensor.

Throughout the world, there is growing trend by investors to protect wealth by holding silver and gold coins and bars. Unfortunately, there are also a growing number of counterfeit coins and bars coming into in circulation. This situation cries out for an affordable method that can be used by untrained investors to quickly and reliably discriminate authentic coins and bars from counterfeit ones without causing damage to their coins and bars. The disclosed method fills this need by the use of a combination of conventional and novel designed pieces of equipment for measuring the following three characteristics of a coin; (1) size, (2) weight, and (3) relative terminal velocity on a magnetic slide. The results of these measurements can be used to unambiguously discriminate pure silver and pure gold investment coins and bars from counterfeit ones and can also be helpful in evaluating 22-karat gold coins and pure platinum coins.

Throughout the world, there is growing trend by investors to protect wealth by holding silver and gold coins and bars. Unfortunately, there are also a growing number of counterfeit coins and bars coming into in circulation. This situation cries out for an affordable method that can be used by untrained investors to quickly and reliably discriminate authentic coins and bars from counterfeit ones without causing damage to their coins and bars. The disclosed method fills this need by the use of a combination of conventional and novel designed pieces of equipment for measuring the following three characteristics of a coin; (1) size, (2) weight, and (3) relative terminal velocity on a magnetic slide. The results of these measurements can be used to unambiguously discriminate pure silver and pure gold investment coins and bars from counterfeit ones and can also be helpful in evaluating 22-karat gold coins and pure platinum coins.

An object of the present invention is to provide a coin detection apparatus that includes a coin path and a light emitting diode (LED) sensor array positioned within the coin path and configured to transmit light beams within the coin path in order to detect characteristics of coins travelling through the coin path based on information from the LED sensor array and transmit data regarding a coin type based on the detected characteristics of the coin to an external application.

An object of the present invention is to provide a coin detection apparatus that includes a coin path and a light emitting diode (LED) sensor array positioned within the coin path and configured to transmit light beams within the coin path in order to detect characteristics of coins travelling through the coin path based on information from the LED sensor array and transmit data regarding a coin type based on the detected characteristics of the coin to an external application.

A coin validation apparatus includes: a conveyor conveying a coin; and a discriminator discriminating authenticity and denomination of the coin, the conveyor including: conveyor pulleys, conveyor belts each endlessly stretched between the conveyor pulleys, conveying members, each having left and right end portions attached to outer surfaces of the conveyor belts, conveying the coin rearwards in a manner laid flat and convey a coin, which has been discriminated by the discriminator as a counterfeit coin, frontwards in a manner laid flat; and guide members, provided on sides of the conveyor belts, preventing the conveying members from being separated from the conveyor belts.

A coin validation apparatus includes: a conveyor conveying a coin; and a discriminator discriminating authenticity and denomination of the coin, the conveyor including: conveyor pulleys, conveyor belts each endlessly stretched between the conveyor pulleys, conveying members, each having left and right end portions attached to outer surfaces of the conveyor belts, conveying the coin rearwards in a manner laid flat and convey a coin, which has been discriminated by the discriminator as a counterfeit coin, frontwards in a manner laid flat; and guide members, provided on sides of the conveyor belts, preventing the conveying members from being separated from the conveyor belts.

A coin detection antenna includes a substrate and a plurality of air core coils of track shape including a wiring pattern provided on the substrate. The plurality of air core coils is disposed along short-side directions of air cores of the plurality of air core coils such that a smallest coin of coins to be detected crosses at least one of centerlines of the air cores even when the smallest coin is located at any location in a detection range.

A coin detection antenna includes a substrate and a plurality of air core coils of track shape including a wiring pattern provided on the substrate. The plurality of air core coils is disposed along short-side directions of air cores of the plurality of air core coils such that a smallest coin of coins to be detected crosses at least one of centerlines of the air cores even when the smallest coin is located at any location in a detection range.