摘要:
A communications method and device that enables multiple source devices (110, 120, 130) to communicate information to a destination device (100) is disclosed. The information communicated from any source device to the destination device (100) typically takes the form of binary electronic product codes ('EPC') or identification ('ID') information. The preferred embodiment of the invention utilizes the techniques of: data scrambling and descrambling; channel selection and transmission; enabling and disabling group transmissions; correlation; and collision mitigation.
摘要:
A radio frequency identification system (20) comprising a radio reader circuit (30) operable to emit a radio frequency carrier signal (60) modulated with a subcarrier, which has a subcarrier modulation rate. The radio frequency identification tag circuit (70) is operable to extract the subcarrier from the emitted radio frequency carrier signal (60) and the extracted subcarrier then functions as a clock, which operates to assist in the transfer of a modulated backscattered signal (66) to the radio frequency identification reader circuit (70). The radio frequency identification reader circuit (70) decodes the modulated backscattered signal (66) and the data encoded in the radio frequency identification tag circuit (70) is obtained.
摘要:
A device communicates with a radio frequency identification ('RFID') device (102) that is associated with an item (500). The device selects a promotional incentive for the item (500) and programs the promotional incentive into the RFID device (102) at one of the following events: point-of-decision to purchase the item, point-of-purchase of the item, or point-of-distribution of the item.