A test system is provided. The test system includes a test board provided with a near filed communication chip and including an antenna; a tag holding apparatus including first and second tag holders accommodating first and second NFC tags, respectively, and a first controller configured to adjust a position of each of the first and second tag holders; and a second controller configured to: transmit a first test signal to the test board to perform a first communication test for the NFC chip and the first NFC tag; receive a result of the first communication test; and determine whether or not the NFC chip normally reads first data stored in the first NFC tag. The first controller is configured to place the first NFC tag and the antenna to be spaced apart from each other by a first distance based on a type of the first NFC tag and face each other, and rotate the first and second tag holders when the first communication test is completed.

A card reader includes a digital connector such as a Universal Serial Bus (USB) plug or an Apple® Lightning® plug. The digital connector includes a corresponding connector interface, which provides voltage to at least a card reader interface and an integrated circuit (IC) of the card reader. The card reader interface outputs an analog transaction information signal upon reading the card. The IC generates a digital version of the analog transaction information signal, encrypts the digital version, converts that into an analog audio signal. The audio signal can then be sent to the connector interface, which converts it into a digital signal such as a USB or Apple® Lightning® signal that is sent by the digital connector to a mobile device. Alternately, the audio signal can be sent to a microcontroller that converts the audio signal to a digital format such as USB, and then to the digital connector.

A card reader includes a digital connector such as a Universal Serial Bus (USB) plug or an Apple® Lightning® plug. The digital connector includes a corresponding connector interface, which provides voltage to at least a card reader interface and an integrated circuit (IC) of the card reader. The card reader interface outputs an analog transaction information signal upon reading the card. The IC generates a digital version of the analog transaction information signal, encrypts the digital version, converts that into an analog audio signal. The audio signal can then be sent to the connector interface, which converts it into a digital signal such as a USB or Apple® Lightning® signal that is sent by the digital connector to a mobile device. Alternately, the audio signal can be sent to a microcontroller that converts the audio signal to a digital format such as USB, and then to the digital connector.

A card reader (1) is provided with: a pre-head (50) which detects change in the magnetic field by magnetoresistive elements (21, 22); a voltage applying circuit (23) which applies a voltage to the pre-head (50); and a reference voltage circuit (30) which superimposes a reference voltage (V0) onto the voltage signal (S1) from the pre-head (50); the card reader is also provided with a signal processing circuit (24) which outputs a detection signal (S4) on the basis of the difference between the voltage signal (S1) and the reference voltage V0. Further, the card reader (1) is provided with a coupling capacitor (26) which is inserted between the pre-head (50) and the signal processing circuit (24), and a switching circuit (27) which connects the coupling capacitor (26) and the signal processing circuit (24) at the same time that voltage is applied to the pre-head (50) from the voltage applying circuit (23).

The invention relates to a device (10) for reading a magnetic stripe and/or chip card comprising a card reader (16) for reading out data from the magnetic stripe and/or chip card, said card reader having a transport path (14) along which the magnetic stripe and/or chip card is moved when it is inserted into the card reader (16) and/or when it is removed from the card reader (16) and/or is received during the readout of data. Further, the device (10) has an image capturing unit (20) for capturing images of the card reader (16), the card reader (16) being designed such that by means of images captured by the image capturing unit (16) it can be detected whether a skimming module is inserted into the transport path (14) of the card reader (16).

An information transmitter includes a transmitting coil configured to receive a coil voltage to generate a magnetic field; and a signal generator configured to receive a direct current (DC) voltage and operating switches to apply the coil voltage to the transmitting coil, for a first time constant in a first current path, wherein the coil voltage includes a first value, and for a second time constant in a second current path, wherein the coil voltage includes a second value smaller than the first value, and wherein the first time constant and second time constant are different from each other.

The invention refers to a method of using a tag in a localisation system, the method comprising at said tag operating a magnetic induction signal detection circuit to detect signals, and upon detection of a magnetic induction signal comprising a first identification code: correlating the magnetic induction signal comprising said first identification code to an ultrasound signal comprising a second identification code, received via an ultrasound signal detection circuit. If said correlation reveals an association between said first identification code and said second identification code: a radio frequency announcement signal is transmitted via a radio frequency signal transmitter circuit to signify said association. The invention also refers to a method of using a beacon in said localisation system, as well as the localisation system comprising one or more tags and one or more beacons.

A card reader includes a digital connector such as a Universal Serial Bus (USB) plug or an Apple Lightning plug. The digital connector includes a corresponding connector interface, which provides voltage to at least a card reader interface and an integrated circuit (IC) of the card reader. The card reader interface outputs an analog transaction information signal upon reading the card. The IC generates a digital version of the analog transaction information signal, encrypts the digital version, converts that into an analog audio signal. The audio signal can then be sent to the connector interface, which converts it into a digital signal such as a USB or Apple Lightning signal that is sent by the digital connector to a mobile device. Alternately, the audio signal can be sent to a microcontroller that converts the audio signal to a digital format such as USB, and then to the digital connector.

The invention refers to a method of using a tag in a localisation system, the method comprising at said tag operating a magnetic induction signal detection circuit to detect signals, and upon detection of a magnetic induction signal comprising a first identification code: correlating the magnetic induction signal comprising said first identification code to an ultrasound signal comprising a second identification code, received via an ultrasound signal detection circuit. If said correlation reveals an association between said first identification code and said second identification code: a radio frequency announcement signal is transmitted via a radio frequency signal transmitter circuit to signify said association. The invention also refers to a method of using a beacon in said localisation system, as well as the localisation system comprising one or more tags and one or more beacons.

A card reader includes a digital connector such as a Universal Serial Bus (USB) plug or an Apple Lightning plug. The digital connector includes a corresponding connector interface, which provides voltage to at least a card reader interface and an integrated circuit (IC) of the card reader. The card reader interface outputs an analog transaction information signal upon reading the card. The IC generates a digital version of the analog transaction information signal, encrypts the digital version, converts that into an analog audio signal. The audio signal can then be sent to the connector interface, which converts it into a digital signal such as a USB or Apple Lightning signal that is sent by the digital connector to a mobile device. Alternately, the audio signal can be sent to a microcontroller that converts the audio signal to a digital format such as USB, and then to the digital connector.