Patent application number | Description | Published |
20080266729 | Radio Frequency Interface Circuit for a Radio Frequency Identification Tag - A radio frequency interface circuit ( | 10-30-2008 |
20080267016 | Electric Counter Circuit - An electric counter circuit ( | 10-30-2008 |
20080290165 | Data Carrier with a Radio Frequency Interface - A circuit for a contact-free data carrier comprises a first circuit point and a second circuit point for connection to transmission means of the data carrier; and supply voltage generating means, which are connected to the first connection circuit point and comprise a supply voltage circuit point and a reference potential circuit point and are designed to generate, based on the received carrier signal, a first supply voltage that can be tapped at the supply voltage circuit point against the reference potential circuit point; and direct current decoupling means, which are connected between the second circuit point and the reference potential circuit point and are designed to inhibit a direct current flow between the second circuit point and the reference potential circuit point; and current conducting means that are connected between the second circuit point and the reference potential circuit point, wherein the current conducting means are designed for the unidirectional conduction of current from the reference potential circuit point to the second circuit point. | 11-27-2008 |
20090045832 | CIRCUIT AND DATA CARRIER WITH RADIO FREQUENCY INTERFACE - A circuit ( | 02-19-2009 |
20090219079 | CHARGE PUMP CIRCUIT FOR RFID INTEGRATED CIRCUITS - An exemplary embodiment of the invention provides a charge pump stage ( | 09-03-2009 |
20110168782 | CAPACITANCE UNDER A FRINGE CAPACITOR OF A RADIO FRQUENCY INTEGRATED CIRCUIT - A capacitance system for a radio frequency (RF) charge pump of an RF integrated circuit (IC) includes a fringe capacitor, a second capacitor, and a silicon substrate region. The fringe capacitor is made of backend masks. The second capacitor is located underneath the fringe capacitor. The silicon substrate region is located underneath the second capacitor. | 07-14-2011 |
20110316618 | SUB-STAGE FOR A CHARGE PUMP - A sub-stage ( | 12-29-2011 |
20130194074 | SYSTEM AND METHOD FOR MANAGING RFID TAGS - A system for managing a population of RFID tags where the system may include: an interrogator configured to transmit a select command to the population of RFID tags, and at least one modified tag in the population of RFID tags. The select command may include information specifying a memory location. The modified tag may include a memory configured with a memory address corresponding to the memory location specified by the select command, and a controller configured to perform at least one action upon the at least one modified tag receiving the select command. The at least one action may be based on the memory location specified by the select command. | 08-01-2013 |
20130270348 | RFID CIRCUIT AND METHOD - Radio frequency communications are effected. In accordance with one or more embodiments, a radio frequency communication circuit includes an antenna having a conductor and a semiconductor chip having a lower substrate surface coupled with the conductor to pass data carried by radio frequency signals to a radio frequency communication circuit in an active layer on an upper surface of the substrate. Accordingly, communications are facilitated via the substrate and can alleviate the need to use through-substrate connectors and further facilitate placement of the chip on the antenna. | 10-17-2013 |
20130335202 | SERIALIZATION OF RFID TAGS - Various exemplary embodiments relate to a method performed by an RFID tag, the method including: receiving a request for a EPC serial number; determining whether the EPC serial number has a preset value; when the EPC serial number has the preset value, mapping a transponder ID to the EPC serial number; and providing the EPC serial number in response to the RFID read request. | 12-19-2013 |
20140061303 | SESSION FLAG CONTROL FOR RFID TAGS - Various exemplary embodiments relate to an integrated circuit (IC) including: an inventoried flag configured to indicate whether the integrated circuit has been inventoried in a current inventory round; and an event detector configured to detect a tag event at the integrated circuit and reset the inventoried flag based on the tag event. In various embodiments, the IC further includes a timer circuit configured to measure a predetermined time since the inventoried flag was set and to prevent the reset of the inventoried flag until the predetermined time has expired. | 03-06-2014 |