|
|
 |
|
1.Memory Cards (Contact Chip) Memory cards cannot manage files and have no processing power for data management. All memory cards communicate to readers through synchronous protocols. In all memory cards you read and write to a fixed address on the card. There are three primary types of memory cards: Straight, Protected, and Stored Value. Before designing in these cards into a proposed system the issuer should check to see if the readers and/or terminals support the communication protocols of the chip. Most contactless cards are variants on the protected memory/segmented memory card idiom. 2.Microprocessor (Contact Chip) The microprocessor smart card is defined as an IC chip contact card with a microprocessor and memory. The size of a credit card, this smart card contains a dime-sized microchip that can process and store thousands of bits of electronic data. Unlike passive devices (such as a memory card or magnetic stripe card) that can only store information, the microprocessor smart card is active and able to process data in reaction to a given situation. This capability to record and modify information in its own non-volatile, physically protected memory makes the smart card a powerful and practical tool - smart cards are small and portable, they can interact with computers and other automated systems, and the data they carry can be updated instantaneously. 3.Contactless Cards (13.56Mhz) Contactless smart cards use radio frequency (RF) technology to interact with a reader. Each card has an antenna embedded inside the card that enables communication with the reader without physical contact. Popular applications are not limited to but include public transport for fare payment, access control, cashless vending, parking, loyalty, electronic purse, gambling, road toll, student, employee IDs in government and corporate environments, e-passports and other secure travel documents, and cards for cashless payment. 4.MIFARE® Cards NXP cards make up over 1.5 billion of the cards being used worldwide today. Over 6 million of the readers are NXP too. MIFARE® technology is a market leader in the UK and is typical used for applications in transport, access control, leisure, e-government, events and loyalty. In addition, Oprfid technical has ITSO accreditation for supply of MIFARE® Cards, MIFARE® 1k and 4k cards. Below you will find our range of MIFARE® cards. 5.Proximity Cards (125khz & UHF) A proximity card is a "contactless" smart card which can be read without inserting it into a reader device, as required by earlier magnetic stripe cards such as credit cards and "contact" type smart cards. The proximity cards are part of the contactless card technologies. Held near an electronic reader for a moment they enable the identification of an encoded number. The reader usually produces a beep or other sound to indicate the card has been read. Proximity cards typically have a read range up to 50 cm which is the main difference with contactless smartcard with 2 to 10 cm. The card can often be left in a wallet or purse[citation needed], and read by simply holding the wallet or purse near the reader. The term "proximity card" refers to the older 125 kHz devices as distinct to the newer 13.56 MHz contactless smartcards. 6.Dual Interface / Combi Cards These cards have one chip controlling the communication interfaces. The chip may be attached to the embedded antenna through a hard connection, inductive method or with a flexible bump mechanism. 7.Twin / Hybrid Cards Twin / Hybrid cards have multiple chips in the same card. These are typically attached to each interface separately, such as a MIFARE chip and antenna with a contact 7816 chip in the same card. Tags: Contactless smart card , Contact smart cards , What is smart card? , Plastic smart card , Knowledge Of Smart Card * Any question or inquiry about contact smart cards and RFID related products, please send email to info@oprfid.com, we will reply you within 24 hours, thanks |
|
|
|
