An electronic device may include a transmission circuit and an inductive element. The inductive element may be configured to generate a wireless communication signal based on a current. The transmission circuit may be configured to output the current based on a supply voltage; to increase an intensity of the current, from zero to an increased intensity that is less than or equal to a target value, by alternately repeating a first increase and a first decrease of the intensity of the current, in a first time interval; to decrease the intensity of the current, from the increased intensity to zero, by alternately repeating a second increase and a second decrease of the intensity of the current, in a second time interval.

A transaction card construction and a method for making transaction cards provides increased security for transaction card magnetic strips. The transaction card construction includes a card inlay and a clear card body. The card inlay is formed via a lamination press process with the magnetic strip attached to a back surface of the card inlay. The card body may have a window through which a data storage element may be exposed for accessing, such as by a magnetic stripe reader or EMV chip reader. The card body may be formed by adhering the card inlay to the clear card body.

A smart card has a light-emitting element, a fingerprint sensor and a microcontroller. An operation of the smart card has a plurality of indication periods to indicate operation statuses of the smart card by the light-emitting element. The control method of the smart card includes generating a light source control signal, controlling a current supplied to the light-emitting element by the microcontroller according to the light source control signal, and decreasing the current supplied to the light-emitting element or stop the current supplied to the light-emitting element during at least one power-saying period in a first indication period of the plurality of indication periods.

A smart card has a light-emitting element, a fingerprint sensor and a microcontroller. An operation of the smart card has a plurality of indication periods to indicate operation statuses of the smart card by the light-emitting element. The control method of the smart card includes generating a light source control signal, controlling a current supplied to the light-emitting element by the microcontroller according to the light source control signal, and decreasing the current supplied to the light-emitting element or stop the current supplied to the light-emitting element during at least one power-saying period in a first indication period of the plurality of indication periods.

A computerized transaction card is provided and includes a plastic form factor resembling a credit card, the form factor including all or a combination of a magnetic stripe, a euro-pay master card and visa (EMV) chip, and or a near field communication (NFC) chip, a micro-controller powered by a rechargeable battery, at least one wireless chip set for sending and receiving data over a local wireless network; and, an interactive display screen for displaying information to a card operator.

An electrode formed by molding a semiconductor device with resin. The electrode comprises: a first resin mold portion formed on a front surface of the semiconductor device and having a first thickness (t1); a second resin mold portion formed on a back surface of the semiconductor device and having a second thickness (t2) greater than the first thickness; and an exposed portion formed in a part of the first resin mold portion corresponding to an end of the semiconductor device.

Provided are approaches for removing an identification chip of a transaction card using a tear element. In some approaches, the transaction card may include a body, the identification chip coupled to the body, and the tear element disposed between the identification chip and the body. The tear element is operable to decouple the identification chip from the body when the tear element is pulled or otherwise moved away from the body.

The present disclosure relates to a coin resistant gate (114) for a payment interface (102). The coin resistant gate comprises a body (502) moveably connected within the payment interface (102), a front surface (804) connected to the body (502), the front surface (804) operable to prevent objects from entering the payment interface (102), and, two or more protruding members (302) connected to the front surface (804), the two or more protruding members (302) for interacting with a payment card (402), wherein, upon an interaction between the two or more protruding members (302) and the payment card (402), the body (502) moves to allow the payment card (402) to pass the front surface (804) of the body (502) of the coin resistant gate (114).

An electronic device may include a transmission circuit and an inductive element. The inductive element may be configured to generate a wireless communication signal based on a current. The transmission circuit may be configured to output the current based on a supply voltage; to increase an intensity of the current, from zero to an increased intensity that is less than or equal to a target value, by alternately repeating a first increase and a first decrease of the intensity of the current, in a first time interval; to decrease the intensity of the current, from the increased intensity to zero, by alternately repeating a second increase and a second decrease of the intensity of the current, in a second time interval.

A computerized transaction card is provided and includes a plastic form factor resembling a credit card, the form factor including all or a combination of a magnetic stripe, a euro-pay master card and visa (EMV) chip, and or a near field communication (NFC) chip, a micro-controller powered by a rechargeable battery, at least one wireless chip set for sending and receiving data over a local wireless network; and, an interactive display screen for displaying information to a card operator.