Abstract: A tag of an apparatus for simultaneously identifying massive tags according to the present invention may include an analog circuit unit to communicate with a reader through an analog signal and to receive energy via magnetic coupling with the reader. Further, the tag may include a digital circuit unit to be supplied with power from the analog circuit unit. The digital circuit unit may support a sleep mode for the tag to stand by in a low power state after transmitting an identifier (ID) to the reader and a wait mode for controlling random access to the reader.

Abstract: Disclosed herein is an apparatus for controlling a tag including: a communication interface receiving a read request; a tag communicating unit connected to one or more memory tags and transmitting and receiving data; a memory storing instructions for performing reads for the memory tags; and a processor performing a control for the memory tags according to the read request based on the instructions, wherein the instructions include instructions for performing the steps of: transmitting a configuration information request to the memory tags; receiving configuration information from the memory tags; calculating the number of data segment according to the configuration information and transmitting the read request including the number of data segment to the memory tags; and receiving a data segment corresponding to the number of data segment from the memory tags.

Abstract: Disclosed are an apparatus and a method for transmitting a tag. The apparatus for transmitting a tag converts 2 bits of a plurality of bit data into one symbol using phase information and orthogonal information.

Abstract: The present invention relates to an automated teller machine having an EPP guard cave formed therein. More particularly, the present invention relates to an automated teller machine having an EPP guard cave formed therein, in which the EPP guard cave is recessively formed on the front surface of the automated teller machine toward the inside thereof and an encrypting pin pad (EPP) is installed inside the EPP guard cave formed as such, so that a user may conveniently use the automated teller machine without anxiety by effectively preventing the procedure of inputting personal information by the user from being exposed to surroundings or other people through a concaved structure without a separate structure such as an EPP guard plate since the user may put a hand into the EPP guard cave and input the personal information through the EPP when the user inputs the personal information through the EPP for a banking transaction.

Abstract: A radio frequency identification (RFID) smart shelf system manages a product through communication with an RFID tag that is attached to the product on a shelf, and includes an RFID reader, a plurality of reader antennas, and an RF switch that is connected between the RFID reader and the plurality of reader antennas. The RF switch periodically varies a phase difference between RF signals of a portion of a plurality of output connection ports that set a connection to each of the plurality of reader antennas.

Abstract: Provided is a tag integrated circuit (IC) module apparatus and a method of fabricating tag IC module apparatus. The tag IC module apparatus may include an n-turn loop coil, n denoting a natural number, connected in series with a tag IC, and a printed circuit board (PCB) disposed below the tag IC and patterned with the n-turn loop coil.

Abstract: An extended Pulse-Interval Encoding (PIE) modulating method in a Radio Frequency IDentification (RFID) system, wherein the method modulates 2-bit transmitted data and comprises: adjusting a length of a symbol according to a value of the first bit of the transmitted data; and adjusting a length of an energy transfer waiting section according to a value of the second bit of the transmitted data.

Abstract: A receiving apparatus for an RFID reader estimates channel coefficients for each of a plurality of receiving antennas based on tag response signals received via a plurality of receiving antennas, compensates the tag response signals received via the plurality of receiving antennas based on the channel coefficients estimated for each of a plurality of channel estimators, combines the compensated tag response signals for each of the plurality of receiving antennas to generate a combined signal, and detect bits in the combined signal.

Abstract: The loop antenna includes a loop coil connected to an RF signal source of a reader through a feed cable, and a switch that is turned on and off depending on a DC voltage that is proportional to the magnitude of an RF signal supplied from the RF signal source of the reader and opens the loop coil when turned off and closes the loop coil when turned on.

Abstract: A reader antenna includes dipole antennas, the dipole antennas including: a horizontal dipole antenna having the characteristic of horizontal polarization; and a dipole antenna perpendicular to the horizontal dipole antenna and including a vertical dipole antenna having the characteristic of vertical polarization, wherein the horizontal dipole antenna and the vertical dipole antenna may both have the characteristic of circular polarization. The reader antenna can be easily stored in an electronic shelf because it is realized in an ultrathin structure using a single-layered dielectric substrate.

Abstract: A receiving apparatus for an RFID reader estimates channel coefficients for each of a plurality of receiving antennas based on tag response signals received via a plurality of receiving antennas, compensates the tag response signals received via the plurality of receiving antennas based on the channel coefficients estimated for each of a plurality of channel estimators, combines the compensated tag response signals for each of the plurality of receiving antennas to generate a combined signal, and detect bits in the combined signal.

Abstract: A wireless communication tag apparatus including a girth measurement device and a wireless communication tag method are disclosed. The wireless communication tag apparatus and method measures a girth of a tree using an unwound length of a tape wound around a trunk of the tree according to growth of the tree, and transmits the girth to a wireless communication reader.

Abstract: Disclosed herein are a radio frequency identification (RFID) system and an operating method thereof. The RFID system includes an RFID tag and an RFID reader transmitting an initialization command to the RFID tag. The initialization command includes a field selecting a single tag accessing mode and a multi-tag processing mode. The RFID reader performs a single tag authentication procedure, which is a procedure of one-to-one accessing one RFID tag, in the case in which the field is set to the single tag accessing mode.

Abstract: In relation to a security function of a radio frequency identification (RFID) tag, an RFID tag and a method of updating a key of the RFID tag that may manage a key to be used for an access to a reader by storing the key in a memory having a duplex structure, thereby minimizing an update error occurring during a process of updating the key are provided.

Abstract: Disclosed herein are a tag transmission apparatus and a signal transmitting method thereof. The tag transmission apparatus converts a plurality of data bits into a symbol, which is one of a plurality of symbols, and multiplies the converted symbol by a square-wave having a predetermined frequency to thereby generate a subcarrier signal. Here, in the case in which the plurality of data bits are n (n is a natural number larger than 2) bits, the number of the plurality of symbols is 2n.

Abstract: The present invention relates to an automated teller machine having an EPP guard cave formed therein. More particularly, the present invention relates to an automated teller machine having an EPP guard cave formed therein, in which the EPP guard cave is recessively formed on the front surface of the automated teller machine toward the inside thereof and an encrypting pin pad (EPP) is installed inside the EPP guard cave formed as such, so that a user may conveniently use the automated teller machine without anxiety by effectively preventing the procedure of inputting personal information by the user from being exposed to surroundings or other people through a concaved structure without a separate structure such as an EPP guard plate since the user may put a hand into the EPP guard cave and input the personal information through the EPP when the user inputs the personal information through the EPP for a banking transaction.

Abstract: A tag transmitting apparatus of a passive RFID (radio frequency identification) system generates a pilot tone, a preamble, and an SFD (start frame delimiter) and transmits the pilot, the preamble, and the SFD, using one of a plurality of square waves.