Radio Frequency Identification (RFID): Definitions
(some of the of terms used in RFID technology)
When UHF antenna is close to metal or metallic material, the antenna can be detuned, resulting in poor performance.
A half duplex is a channel capable of transmitting data in both directions, but not simultaneously.
Regulations in the European Union say readers can be on only ten percent of the time.
EIRP is usually expressed in watts.
ERP is usually expressed in watts and is not the same as EIRP.
Usually bytes can be erased and reprogrammed individually.
RFID tags that use EEPROM are more expensive than factory programmed tags, where the number is written into the silicon when the chip is made, but they offer more flexibility because the end user can write an ID number to the tag at the time the tag is going to be used.2. A form of read-only memory which can be electrically erased and reprogrammed.
3. An integrated-circuit memory chip that has an internal switch to permit a user to erase the contents of the chip and to write new contents into it with electrical signals.
When someone passes a gate, or door, of a place holding an item with an electronic article surveillance that hasn't been turned off, an alarm sounds.
The EPC has digits to identify the manufacturer, product category and the individual item.
EPC Global is made up of chapters in different countries and regions. It is commercializing the technology originally developed by the Auto-ID Center.
The network infrastructure includes the Object Name Service, distributed middleware (sometimes called Savants), the EPC Information Service and Physical Markup Language.
The EPC Information Service is a network infrastructure that enables companies to store data associated with EPCs in secure databases on the Web.
The EPC Information Service will enable companies to provide different levels of access to data to different groups.
Some information associated with an EPC might be available to everyone. Other information might be available only to a manufacturer's retail customers.
The service also includes a number of applications; such as, the EPC Discovery Service.