An internal voltage generator of a smart card and a smart card including the same. The internal voltage generator may include: a mode detector that generates a mode signal indicating a contact mode or a contactless mode; a low-drop out (LDO) regulator including an error amplifier, where the LDO regulator is responsive to the mode signal to: in the contact mode, drive the error amplifier with a second driving voltage to generate an error voltage, and regulate the second driving voltage based on the error voltage to generate a first output voltage, and in the contactless mode, drive the error amplifier with the first driving voltage to generate the error voltage, and regulate the second driving voltage based on the error voltage to generate the first output voltage.

A dual interface transaction card for contact and contactless transactions including an anodized top metal layer. The arrangement of layers allowing for high conductivity metals such as aluminum to be used without compromising the contactless function of the card.

A mobile device includes a smartcard controller that does not rely on power received from an interrogating RF field. The mobile device also includes a small inductive device capable of inductive coupling with an RFID reader. The smartcard controller includes circuitry to modulate an impedance of a port coupled to the inductive element when in the presence of an interrogating RF field at substantially 13.56 MHz.

A transaction card can be manufactured from rigid materials, such as glass, stone, or ceramics. The transaction card can have a first rigid layer having a first external surface and a first internal surface, with a pocket within the first external surface of the first rigid layer. The transaction card can have a second rigid layer having a second external surface and a second internal surface. A binding layer can be located between the first rigid layer and the second rigid layer can affix the first rigid layer to the second internal layer. An integrated circuit chip can be affixed within the pocket of the first rigid layer. A rim can extend from the first external surface of first rigid layer around a first edge of the first rigid layer and a second edge of the second rigid layer and onto the second external surface of the second rigid layer.

Metal containing transaction cards or smartcards (SC) having a slit (S) formed in a metal layer (ML) or metal card body (MCB) which extends from a perimeter edge of the card body to a transponder chip module (TCM), wherein the path of the slit (S) extends to an area underneath a module antenna (MA) of the TCM. The slit (S) does not reach a module opening (MO) for the transponder chip module (TCM). The slit enters the area of the module antenna (MA) overlapping its windings or tracks and follows the form and path of the module antenna (MA). In some embodiments, the module opening (MO) may be omitted. The shape of the module opening (MO) may be other than rectangular, and it may have at least two parallel sides.

A light emitting electronic card includes a card body, an electronic control module, a light emitting module and a light guide module. The card body includes a panel, a base plate, a light transmissive portion, a first light shielding portion and a second light shielding portion. The electronic control module is disposed at the card body, and includes a circuit control carrier board and a non-contact type radio-frequency (RF) antenna or a contact type communication chip. The light emitting module is disposed in the card body and is electrically connected to the circuit control carrier board. The light guide module is disposed in the card body and corresponds to the light emitting module, includes a light source focusing portion corresponding to the light transmissive portion, and guides a light source of the light emitting module to the light transmissive portion by the light source focusing portion.

The disclosed embodiments provide a payment card. The payment card may have a first face and a second face opposite the first. Additionally, the payment card may comprise a first smart chip, the first smart chip having contacts that are electronically accessible from the first face of the card. The payment card may further comprise a first antenna coupled to the first smart chip, the first antenna providing near-field contactless access to the first smart chip and a second smart chip, the second smart chip having contacts that are electronically accessible from the second face of thecard. Additionally, the payment card may comprise a second antenna coupled to the second smart chip, the second antenna providing near-field contactless access to the second smart chip and an RF block that electronically isolates the first antenna and the second antenna from each other.

A transaction device includes a metal layer with one or more discontinuities in the metal layer. Each discontinuity comprises a gap in the metal layer extending from the front surface to the back surface, including at least one discontinuity that defines a path from the device periphery to the opening. A transponder chip module is disposed in the opening. A booster antenna is in communication with the transponder chip module. The device may include at least one fiber-reinforced epoxy laminate material layer. The transponder chip module and the booster antenna may comprise components in a payment circuit, with the metal layer electrically isolated from the payment circuit. The booster antenna may be formed on or embedded in the fiber-reinforced epoxy laminate material layer. Processes for manufacturing transaction devices including a metal layer with one or more fiber-reinforced epoxy laminate material layers are also disclosed.

Provided are transaction cards including an expanded identification ship. In some approaches, a transaction card may include a body having a first main side opposite a second main side, wherein the body defines an outer perimeter including a first end perimeter opposite a second end perimeter, and a first side perimeter opposite a second side perimeter. The transaction card may further include an identification chip having a plurality of contacts, wherein a first contact of the plurality of contacts extends to at least one of the following: the first end perimeter, the second end perimeter, the first side perimeter, and the second side perimeter.

Smartcards with metal layers manufactured according to various techniques disclosed herein. One or more metal layers of a smartcard stackup may be provided with slits overlapping at least a portion of a module antenna in an associated transponder chip module disposed in the smartcard so that the metal layer functions as a coupling frame. One or more metal layers may be pre-laminated with plastic layers to form a metal core or clad subassembly for a smartcard, and outer printed and/or overlay plastic layers may be laminated to the front and/or back of the metal core. Front and back overlays may be provided. Various constructions of and manufacturing techniques (including temperature, time, and pressure regimes for laminating) for smartcards are disclosed herein.