KR20050081778A - Rf reader-typed mobile devices - Google Patents

Abstract

The present invention relates to an RF reader-type wireless terminal, which recognizes at least one RF card and / or RF tag accessing the wireless terminal, and includes predetermined information included in the recognized RF card and / or RF tag. RF Reader that obtains (or data) from the RF card and / or RF tag, and controls the activation or deactivation of the RF Reader function, the information obtained and provided by the RF Reader from the RF card and / or RF tag. Or a control unit for controlling data processing of data (or data).

Description

RF Reader-type Mobile Devices

The present invention relates to an RF reader wireless terminal, wherein the RF reader included in the wireless terminal communicates with the wireless terminal controller (for example, a central processing unit) through a predetermined bus.

In general, RFID (Radio Frequency Identification) refers to an automatic recognition technology that performs a function of transmitting and receiving a predetermined data stored in a label, a card, a tag, etc. with a microchip with a reader using a radio frequency. , Obstacle permeation function, read / write function (reusable) It has strengths such as recognition on the move, semi-permanent use, high reliability of data processing, and eliminates defects of existing barcodes and magnetic recognition devices, and is easy to use. The range of applications is increasing dramatically as the way of change, the change of consumer's consciousness, and the advancement of culture and technology.

Such RFID can be classified into Passive type and Active type according to the built-in battery. Passive type is affected by the size and size of Tag and Reader, but generally has a short range read range of 2 ~ 70cm and can produce a tag at low price It is widely used in logistics, manufacturing, and the like.

In addition, the active type has a built-in battery in the tag, so it is possible to transmit and receive long-distance data, but it is expensive and is limited in use due to the limited use period depending on the battery life.

In addition, according to the frequency band, the RFID has a high penetration and relatively many application fields, but has a relatively high production cost, a low frequency type (125 kHz or less) with a tag damage and a slow recognition rate, a good penetration and a small size, It can be produced in a thin plate type, and can be classified into a low production cost and a high frequency type (13.56 Mhx or more) that can transmit and receive a lot of data.

Such RFID performs operations in connection with various types of RF readers for processing predetermined data. However, the RF reader for processing the RFID is spread in the corresponding RFID-use affiliated stores, distribution centers, etc., so that the base expansion does not reach the user.

Therefore, there is a need for a predetermined RF reader terminal device to enable users to use RF related products more efficiently and effectively.

Summary of the Invention An object of the present invention to solve the above problems is to recognize at least one RF card and / or RF tag that accesses a wireless terminal, and to provide predetermined information included in the recognized RF card and / or RF tag. Or RF reader for obtaining data from the RF card and / or RF tag, and for enabling or disabling the RF reader function, and the information (obtained and provided from the RF card and / or RF tag) by the RF reader. Or an RF reader wireless terminal having a control unit for controlling data processing of data).

In order to achieve the above object, the present invention is characterized in that it comprises an RF reader that can communicate with at least one RF card or RF tag of the external in the wireless terminal.

Preferably, the RF reader in the wireless terminal communicates with a control unit (eg, a central processing unit) of the wireless terminal through a predetermined bus.

The RF reader interoperates with another function performing unit (eg, a screen output unit, a key input unit, a wireless processing unit, and / or a voice processing unit, etc.) in the wireless terminal through the control unit. For example, in order to activate the RF reader function of the wireless terminal, a predetermined RF reader activation input is transmitted to the RF reader through a control unit through a key input unit, thereby activating the deactivated RF reader function or vice versa. You can disable the RF Reader function.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. First, predetermined reference numerals are added to elements illustrated in the drawings. However, it is noted that the same components shown in different drawings are denoted by the same reference numerals as much as possible.

In addition, in the following description, in order to explain the embodiments of the present invention, specific details such as specific elements are illustrated, which are provided to help a more general understanding of the present invention, and the present invention may be practiced without these specific details. It will be apparent to those skilled in the art.

In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a simplified block diagram of a wireless terminal 1000 including an RF tag and / or RF card receiving function according to the present invention.

The wireless terminal 100 for a predetermined wireless communication function on the wireless network is preferably a control unit 105, a screen output unit 130, a key input unit 135, a wireless processing unit 115, and / or a voice processing unit 120. In accordance with the present invention, the wireless terminal 100 shown in FIG. 1 further includes an RF reader 145 interworking with an RF card and / or an RF tag accessed from the outside.

More specifically, the control unit 105 of the wireless terminal 100 controls and manages various functions (eg, wireless call, wireless data transmission, key input, screen output, voice output function, etc.) performed by the wireless terminal 100. It is characterized by. In addition, the controller 105 includes a booting and operating system (OS) control management program of the wireless terminal 100 and predetermined agents or application programs mounted on the wireless terminal 100.

In particular, according to the present invention, the control unit 105 of the wireless terminal 100 further includes an RF reader control unit 110 for activating the function of the RF reader 145 of the wireless terminal 100. The RF reader controller 110 communicates with the RF reader 145 of the wireless terminal 100 through a bus, and controls and manages the RF reader 145. For example, the RF reader control unit 110 transmits a predetermined command (eg, activation or deactivation) for controlling the RF reader 145, and the RF reader 145 is externally (for example, an RF card or RF tag, etc.) Acquire and process the received data.

The RF Reader control unit 110 controls and manages the RF Reader interface 200 included in the RF Reader 145, and the RF Reader 145 may control at least one RF card and / or through the control unit 110. Alternatively, it reads or writes information from the RF tag.

The wireless processing unit 115 in the wireless terminal 100 transmits a code generated by the control unit 105 to a voice channel and / or a data channel in order for the wireless terminal 100 to perform predetermined wireless communication on the wireless network. It converts into a radio frequency (RF) signal that includes and wirelessly transmits and receives a server or device connected to the mobile communication network through the mobile communication network. In particular, according to the present invention, the wireless processing unit 115 is characterized in that the RF reader 145 receives from the outside, and provides the processed predetermined data to a related server or device on the mobile communication network.

For example, the wireless processor 115 may include a radio frequency (RF) processor, an intermediate frequency (IF) processor, a baseband processor, etc. based on a code division multiple access (CDMA), and the wireless processor 115. The radio frequency signal processed by the CRS may include at least one base station transceiver subsystem (BTS) on a wireless network, a base station controller (BSC) connected to at least one base station through a wired section, and the control station The voice channel is connected to another wireless terminal 100 through a mobile switching center (MSC) which is connected through a wired interval and performs call processing based on a CDMA stack.

In the process of connecting the data channel, a communication session is connected according to a call processing procedure specific to mobile communication, and it is preferable to transmit and receive data with a server or a device through the connected communication session.

The voice processing unit 120 of the wireless terminal 100 encodes a voice signal input from the microphone and transmits the encoded audio signal to the wireless processing unit 115 through the control unit 105 and transmits a signal received through the wireless processing unit 115. It includes a function of decoding and outputting as a voice signal to the speaker through the control unit 105. In particular, the voice processing unit 120 may perform a predetermined voice or sound output informing the data transmission and reception process of the RF Reader 145 according to the present invention.

For example, the voice processing unit 120 receives the predetermined information (or data) from the RF tag and / or the RF card or the RF reader 145, or the predetermined information (or the RF tag and / or the RF card). Data), in conjunction with the control unit 110, it is possible to perform a task of outputting a predetermined sound or voice at the end of the reception and recording.

The memory unit 125 of the wireless terminal 100 includes a predetermined program code for controlling the overall operation of the wireless terminal 100 and information and / or data input and / or output when an operation by the program code is performed. As a space and / or a storage area where the light is stored, for example, a read-only memory such as a read only memory (ROM) and a read / write memory such as an electrically erasable and programmable read only memory (EEPROM) or a flash memory (FM). It may be provided in the wireless terminal 100 in the form of.

The memory unit 125 may include predetermined information for the wireless terminal 100 to communicate with at least one RF card and / or RF tag according to the present invention.

The screen output unit 130 receives at least one or more key data generated by the key input unit 135 and / or various information and signals generated and / or generated during a control process of the control unit 105. It outputs to a screen (for example, a liquid crystal display (LCD)) provided in the, and according to the present invention, by outputting a series of processes performed by the RF Reader 145 on the screen, to facilitate the user interface .

For example, the screen output unit 130 may receive the predetermined information (or data) from the RF tag and / or the RF card or the RF tag and / or the RF card. Or data), in conjunction with the control unit 110, the operation of outputting the reception and recording process on the screen of the wireless terminal 100 may be performed.

The key input unit 135 includes a plurality of number keys, a character key for inputting a character, and at least one function key, and the like. When the key is pressed, corresponding key data are generated and provided to the controller 105.

The RF reader 145 of the wireless terminal 100 recognizes at least one RF card and / or RF tag that is accessed, acquires predetermined data included in the RF card and / or RF tag, and controls the controller (eg, , RF Reader control unit in the control unit).

2 is a simple configuration diagram of the RF reader 145 included in the wireless terminal 100 according to the present invention.

FIG. 3 is a diagram illustrating the components of the RF reader 145 included in the wireless terminal 100 in order for the wireless terminal 100 to interoperate with an RF tag and / or an RF card. According to the invention, the RF reader 145 is characterized in that it comprises an RF transmitter 205, RF receiver 210 and the RF interface 200.

The RF transmitter 205 of the RF reader 145 is in close proximity of an RF tag and / or RF card (eg, an RF tag and / or RF card without a separate power source) that is present within a radio frequency (RF) operating range. It supplies sufficient power to the antenna through a predetermined interface to drive the signal, transmits a signal (for example, a clock signal, etc.) synchronized with the RF reader 145 to an RF card and / or an RF tag, and performs synchronization. The modulated or demodulated signal (frequency) is transmitted to the RF card and / or the RF tag through the RF reader interface 200 described below.

The RF receiver 210 of the RF reader 145 receives and filters predetermined data (frequency) that is answered from an external RF card and / or an RF tag, so that the following RF interface 200 processes the corresponding data to control the controller. Help to deliver to (110).

The RF interface 200 processes frequency modulation and demodulation for data transmission and reception with an external RF card and / or RF tag. According to the present invention, the RF interface 200 encodes the data transmitted from the control unit 110 to a designated carrier (for example, 125Khz or 16.58Mhz, etc.), and serves to load data on the carrier according to various modulation schemes. . In addition, it serves to decode the data received from the external RF card and / or the RF tag to the control unit 110.

The interface 215 of the RF reader 145 connects a loop antenna with the RF transmitter 205 and the RF receiver 210, and may further include an impedance matching circuit for maximum power in the loop antenna. For example, by reducing the reflection due to the mutual impedance difference generated when connecting the wireless terminal (RF Reader) and the external RF card and / or RF tag, between the wireless terminal (RF Reader) and the external RF card and / or RF tag It corrects the impedance difference of.

3 is a simple flowchart according to a preferred embodiment of the present invention.

When a command to start activation of the RF reader function in the wireless terminal 100 is transmitted to the controller 110 through a key input unit (or a voice processing unit, etc.) of the wireless terminal 100 (300), the controller 110 transmits the wireless terminal. An RF Reader function is initialized to activate the RF Reader function in 100 (305).

When the RF reader function in the wireless terminal 100 is initialized, the controller 110 transmits an RF field formation command for detecting and activating at least one RF card in proximity to the RF interface 200 (310). The RF interface 200 forms a radio field for communicating with the RF card and / or the RF tag through the RF transmitter 205. For example, the wireless field combined with the RF card may be modulated for communication between the wireless terminal 100 and the RF card, and may also serve as an energy source for supplying predetermined power to the RF card.

If, through the above process, the wireless terminal 100 having the RF reader function activated is approaching at least one RF card (or RF tag, etc.) (315), the RF card is an RF reader radio frequency of the wireless terminal 100. (RF) Activation is initiated within the Operating Field (320).

 For example, the frequency fc of the radio frequency operating range is preferably 13.56 MHz ± 7 KHz, and the RF reader has a minimum Hmin value or more than a maximum Hmax at a position defined by a manufacturer (operating range, operating volume). It is clear that it will generate a field that does not, and should be able to power the RF card at the specified location.

Preferably, the wireless terminal 100 may alternately operate a modulation scheme to detect the type (eg, Type A or Type B) of an approaching RF card.

When activation of the approached RF card is initiated within an RF reader radio frequency (RF) operating field of the wireless terminal 100, the control unit 110 of the wireless terminal 100 is configured to determine the proximity of the adjacent RF card. In order to retrieve activation, certain request commands are transmitted (325), and the control unit 110 of the wireless terminal 100 is the RF receiver 210 of the RF reader 145 in the wireless terminal 100. In operation 330, a predetermined response (Answer To Request) is received from at least one RF card.

If there is a response from two or more RF cards (or RF tags) (335), the RF reader 145 of the wireless terminal 100 is preferably performed a collision avoidance process for a plurality of RF cards (340) (Eg anti-collision treatment based on ISO / IEC 14443-3).

For example, the anti-collision process is preferably executed in the control unit 110 of the wireless terminal 100, and the control unit 110 of the wireless terminal 100 performs an anti-collision process by applying an anti-collision loop.

For example, the controller 110 of the wireless terminal 100 assigns a code for the selected collision avoidance type and a cascade level (CLn) to a Select Command (SEL), and assigns '20' to the Number of Valid Bits (NVB). At least one of the SEL and the NVB to which the value is assigned are transmitted to the wireless field through the RF transmitter 205 of the RF reader 145, and thus within the wireless field of the RF reader 145 of the wireless terminal 100. By causing the above RF card to respond to the complete UID CLn, the collision is confirmed based on the value of the responded UID CLn, and the valid bit value of the UID CLn received before the collision is reassigned to the NVB and transmitted again. This can be done by having only the RF card with the bit value respond. (Repeat until no collision occurs, eg up to 32 times)

On the other hand, if there is a response from one RF card or if one RF card is selected through an anti-collision loop (345), the control unit 110 of the wireless terminal 100 is the RF transmitter of the RF Reader (145) By transmitting a SELECT command to the RF card (350) via the RF field formed with the RF card (205), and performing mutual authentication between the wireless terminal 100 and the RF card (355), Provide a basis for data communication with the RF card.

When the authentication operation between the wireless terminal 100 and the RF card is completed, the wireless terminal 100 receives predetermined data from the RF card and / or data on the RF card through an RF field. Record 360.

When the series of tasks between the wireless terminal 100 and the RF card is completed as described above, the wireless terminal 100 transfers a predetermined command for deactivating the RF card, thereby converting the RF card to the HALT state ( 365).

According to the present invention, the wireless terminal communicates with a control unit (for example, a central processing unit, etc.) through a predetermined bus (BUS), and is provided with an RF reader function that interworks with at least one external RF card or RF tag. The advantage is the direct control of the RF Reader function without the addition of complex hardware in the wireless terminal.

In addition, there is an advantage that it is advantageous to secure an arrangement space for providing the RF reader function in a narrow space in the wireless terminal.

1 is a simplified block diagram of a wireless terminal including a RFID tag and / or RFID card receiving function according to the present invention.

2 is a simple block diagram of an RF reader included in a wireless terminal according to the present invention.

3 is a simple flowchart according to a preferred embodiment of the present invention.

<Description of main parts of drawing>

100: wireless terminal 105: control unit

110: RF Reader control unit 115: wireless processing unit

120: voice processing unit 125: memory unit

130: screen output unit 135: key input unit

140: power supply 145: RF Reader

Claims (14)

In a wireless terminal, Recognize at least one or more RF card and / or RF tag accessing the wireless terminal, the predetermined information (or data) included in the recognized RF card and / or RF tag; RF Reader obtained from And a control unit configured to control activation or deactivation of the RF reader function, and to control data processing of information (or data) obtained by the RF reader from the RF card and / or RF tag. Reader wireless terminal. The method of claim 1, wherein the RF Reader, The RFID reader wireless terminal characterized in that the predetermined information (or data) provided by the control unit is recorded on at least one RF card and / or RF tag to access the wireless terminal. The method of claim 1 or 2, wherein the RF Reader, An RF reader type wireless terminal comprising an RF transmitter for supplying power to an antenna to drive an RF tag and / or an RF card in proximity to a radio frequency (RF) operating range. The method of claim 1 or 2, wherein the RF Reader, And an RF transmitter for transmitting a signal synchronized with the RF reader to at least one RF card and / or RF tag accessing the wireless terminal. The method of claim 1 or 2, wherein the RF Reader, And an RF interface for performing frequency modulation and demodulation for data transmission and reception with at least one RF card and / or RF tag accessing the wireless terminal. The method of claim 1, wherein the RF Reader, An RF receiver configured to receive and filter predetermined information or data transmitted from at least one RF card and / or RF tag accessing the wireless terminal; And And an RF interface for decoding predetermined information or data received by the RF receiving unit and providing the decoded information or data to the controller. The method of claim 1, wherein the control unit, The RF reader wireless terminal, characterized in that to activate or deactivate the RF Reader in conjunction with a key input unit. The method of claim 1, wherein the control unit, And an RF reader wireless terminal for detecting and activating at least one RF card and / or RF tag in proximity to the wireless terminal. The method of claim 1, wherein the wireless field, And an RFID reader wireless terminal which is modulated for communication between the wireless terminal and the RF card. The method of claim 1, wherein the control unit, RF reader wireless terminal characterized in that the communication with the RF reader via a bus (BUS). The method of claim 1, wherein the wireless terminal, And an RF processor, in conjunction with the control unit, further comprising a wireless processing unit for providing information (or data) obtained from the RF card and / or the RF tag to an associated server or device on a mobile communication network. Type wireless terminal. The method of claim 1, wherein the wireless terminal, When the RF Reader receives predetermined information (or data) from the RF tag and / or the RF card, or records the predetermined information (or data) with the RF tag and / or the RF card, And an audio processing unit for outputting a predetermined sound or voice at the end of the reception and recording. The method of claim 1, wherein the wireless terminal, When the RF Reader receives the predetermined information (or data) from the RF tag and / or RF card, in conjunction with the control unit, further comprising a memory unit for storing the received information (or data) RF reader wireless terminal. The method of claim 1, wherein the wireless terminal, When the RF Reader receives predetermined information (or data) from the RF tag and / or the RF card, or records the predetermined information (or data) with the RF tag and / or the RF card, And a screen output unit for outputting the reception and recording process on the screen of the wireless terminal.