ISO/IEC was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 17, Cards and personal identification. ISO/IEC , is an ISO standard for vicinity cards, i.e. cards which can be read from a greater ISO/IEC Identification cards — Contactless integrated circuit cards — Vicinity cards — Part 2: Air interface and initialization. ISO/IEC (E). PDF disclaimer. This PDF file may contain embedded typefaces. In accordance with Adobe’s licensing policy, this file.
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Such cards can normally be read out by a reader without being powered themselves, as the reader will supply the necessary power to the card over the air wireless.
Check out our FAQs. Proof sent to secretariat or FDIS ballot initiated: Vicinity cards, which have no power source, can be energized at ranges of up to 1 m from a coupler that can only transmit power within the limits permitted by international radio frequency RF regulations.
When sufficient power is received by the card, it is able to respond to commands sent from the coupler. Air interface and initialization.
Articles lacking reliable references from April All articles lacking reliable references. April Learn how and when to remove this template message. These are switched on and off to provide Manchester-encoded data that are then detected by the coupler. Life cycle A standard is reviewed every 5 years 00 Preliminary. The data rate can be:. Frequency-shift keying by switching between a A vicinity card only responds when it receives a valid command that selects a single card from a possible collection of cards within range of the coupler.
ISO standards by standard number. This page was last edited on 22 Novemberat Therefore 1569-32 version remains current.
ISO/IEC – Wikipedia
The coupler sends commands to the card by modulating the powering field and by using a modulation system known as pulse position modulation, whereby the position of a single pulse relative to a known reference point codes the value of a lso or byte of data. This allows the card to draw the maximum energy from the field almost continuously. This process of collision detection and selection, also known as anti-collision, is made possible by detecting lso unique identification number encoded into every card.
This article relies too much on references to primary sources. Views Read Edit View history. A logic 0 starts with eight pulses of Retrieved from ” https: Power is coupled to the vicinity card by an a. List of Io Electrotechnical Commission standards.
Final text received or FDIS registered for formal approval. From Wikipedia, the free encyclopedia. As the vicinity cards have to operate at a greater distance, the necessary magnetic field is less 0.
The card responds to the coupler by drawing more or less power from the field and generates one or two sub-carriers of around kHz.
The first byte of the UID should always iwo 0xE0. It is the flexibility of the interface kso select one or two sub-carriers when communicating from card to coupler, whilst also using slow or fast data rates from the coupler to the card, that allows systems to be tuned to suit different operational requirements ranging from use with high RF noise at short range to low RF noise at long range. Thus both power and bi-directional communications form the air interface between the vicinity card and the coupler.
The data frame delimitors are code violations, a start of frame is:.