JP2016136415A - Electronic transaction using mobile communication device via encoded graphical expression - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dynamically process electronic commerce using a mobile communication device.SOLUTION: Information is exchanged between a mobile communication device and an automatic information system. The mobile communication device includes a video display and a digital camera. The automatic information system includes a video display and a graphical expression receiver. The automatic information system displays a first graphical expression encoded with a first data set. The mobile communication device captures an image of the first graphical expression, decodes the first data set, processes the first data set, generates a second data set, encodes the second data set into a second graphical expression, and displays the second graphical expression. The automatic information system receives the second graphical expression, decodes the second data set, and processes the second data set. The graphical expression includes a bar code.SELECTED DRAWING: Figure 1

Description

  The present invention relates generally to electronic transactions, and more particularly to electronic transactions using mobile communication devices.

  Electronic trading systems have been widely deployed in business applications. A common example of an electronic trading system is an electronic payment system, where users pay for goods or services using the system. A widely deployed and established electronic payment system utilizes a credit card with an embedded magnetic strip that contains encoded user account information. The magnetic strip is swiped through a magnetic card reader connected to a point-of-sale terminal that decrypts user account information. Sales information (merchant identification code, transaction identification code, date, time, price, etc.) and user account information are transmitted to the electronic payment processing center that charges the user account for the purchase amount.

  Modern electronic payment systems utilize a card or tag that has user account information stored in a memory chip and transmitted by a radio frequency (RF) transmitter. When the RF transmitter is placed near the RF receiver, a point-of-sale terminal equipped with the RF receiver reads the user account information.

  Another example of an electronic transaction system is an electronic ticket system. A user can purchase a ticket for an event (such as a sporting event, a theater, or a concert) via the Internet and print a ticket that includes a ticket identification number encoded in a barcode. At the event, the barcode is scanned with a barcode reader, which sends the ticket identification number to the electronic ticket processing center.

  The electronic ticket system can also generate an electronic boarding pass. A user can purchase an aircraft ticket via the Internet and print a ticket including a boarding pass with boarding information encoded in a barcode. At the airline terminal boarding gate, the bar code is scanned by the bar code reader, which transmits the boarding information to the electronic boarding pass processing center.

  In the electronic ticket system described above, a user generally accesses the Internet via a computer, purchases a ticket, and prints a barcode on paper. Cellular phones with video displays and Internet connections have become widely available. Now, users can access the Internet via a mobile phone, purchase tickets, and display barcodes on a video display. The bar code can then be read by a conventional bar code reader. Although bar code hard copies are excluded in this procedure, the actual ticket purchase is still processed through the vendor's website. What is needed is an electronic trading system for processing transactions dynamically.

  In one embodiment, information is exchanged between the mobile communication device and an automated information system. The mobile communication device is equipped with a video display and a digital camera, and the automatic information system is equipped with a video display and a graphical representation receiver. The automated information system displays a first graphical representation encoded with the first data set. The mobile communication device captures an image of the first graphical representation, decodes the first data set, processes the first data set, generates a second data set, and generates the second data set. Encode into a graphical representation of 2 and display the second barcode. The automated information system receives the second graphical representation, decodes the second data set, and processes the second data set. The graphical representation embodiment includes a barcode.

  These and other advantages of the invention will be apparent to those of ordinary skill in the art by reference to the following detailed description and the accompanying drawings.

It is the schematic which shows an electronic transaction system. 1 is a schematic diagram illustrating a mobile communication device. It is the schematic which shows a vendor transaction system. 1 is a schematic diagram illustrating a computing system incorporated within a mobile communication device. It is the schematic which shows the calculation system integrated in the vendor transaction system. FIG. 4 is a diagram illustrating a message flow for electronic trading. FIG. 6 is a flowchart illustrating steps performed by a vendor trading system during an electronic transaction. FIG. 6 is a flowchart illustrating steps performed by a mobile communication device during an electronic transaction. FIG. 6 is a flowchart illustrating steps performed by a mobile communication device during an electronic transaction. FIG. 6 is a flowchart illustrating steps performed by a mobile communication device during an electronic inquiry. Fig. 6 is a flow chart illustrating steps performed by an automated information system during an electronic inquiry. It is a figure which shows an example of a one-dimensional barcode. It is a figure which shows an example of a two-dimensional barcode. It is a figure which shows an example of the generalized two-dimensional graphical representation.

  FIG. 1 shows a high level functional block diagram of an electronic trading system. The electronic trading system includes a mobile communication device 102 and a vendor trading system 104. Examples of the mobile communication device 102 include a mobile phone, a personal digital assistant, and a laptop computer. Examples of vendor trading system 104 include point-of-sale terminals at stores and check-in kiosks at airports. In some embodiments, vendor trading system 104 is a mobile communication device similar to mobile communication device 102. Vendor trading systems configured as mobile communication devices are advantageous, for example, for processing tickets at stadiums or theater entrances, for processing payments at restaurant tables, and for processing payments in the open market It is.

  Mobile communication device 102 and vendor trading system 104 communicate with each other via data communication link 101. Mobile communication device 102 communicates with data communication network 110 via data communication link 111. Vendor trading system 104 communicates with data communication network 110 via data communication link 113. Transaction processing system 122 communicates with data communication network 110 via data communication link 121.

  The transaction processing system 122 performs back-end operations such as authentication, authorization, record management, and billing. For simplicity, transaction processing system 122 is shown as a single network element. In practice, transaction processing system 122 may include multiple network elements operated by multiple parties, such as credit card companies, securities clearing houses, traders, and telecommunications service providers.

  For simplicity, a single data communication link is shown between the various network elements of FIG. In practice, two network elements may be coupled by multiple data communication links. Further details of the data communication link 101 are described below. Data communication link 111 is typically an RF link to a cellular telephone network. Data communication link 113 and data communication link 121 may be wireless links or may be wired links (such as wires, coaxial cables, or optical fibers).

  FIG. 2 shows a schematic diagram of an embodiment of the mobile communication device 102. The mobile communication device 102 includes a user input device 202 (such as a keypad or touch screen) for receiving user input. Mobile communication device 102 includes a digital camera 222 for receiving image 221 and a video display 224 for displaying image 225. In general, both still and video images can be captured and displayed.

  The mobile communication device 102 includes an acoustic receiver (microphone) 232 for receiving the acoustic signal 231 and an acoustic transmitter (speaker) 234 for transmitting the acoustic signal 235.

  Mobile communication device 102 includes an RF transceiver 212 that receives RF signal 211 via antenna 216 and transmits RF signal 215. For simplicity, a single RF transceiver is shown. In general, RF transceiver 212 represents a plurality of RF transceivers or multimode RF transceivers. For example, the RF transceiver 212 may be a mobile telecommunications network (such as Universal Mobile Telecommunications System (UMTS) and Code Division Multiple Access (CDMA)), a wireless local area network (such as WiFi), It can communicate with short-range RF networks (such as Bluetooth), and near-field communications networks (such as those used for RF identification devices).

  The mobile communication device 102 includes an auxiliary port 252 that can be, for example, a wired port or an infrared port. In some embodiments, auxiliary port 252 is a universal serial bus (USB) port. Auxiliary port 252 may be used to transfer data to and from the mobile communication device and may be used to interface mobile communication device 102 with an auxiliary device (such as a barcode reader). .

  The mobile communication device 102 includes a computing system 242 and further details of the computing system 242 are described below. The computing speed and capabilities built into a class of mobile phones called smartphones have improved sufficiently that the distinction between mobile phones and mobile computers has become blurred. The mobile communication device 102 can execute a general-purpose program and a dedicated program. Various categories of dedicated programs are called applets or apps.

  FIG. 2 illustrates one embodiment of a mobile communication device. Those skilled in the art will recognize that other embodiments of the mobile communication device may include fewer or more components.

  FIG. 3 shows a schematic diagram of one embodiment of a vendor trading system 104. Vendor trading system 104 includes a point of sale (POS) terminal 304 having a user input device 302 (such as a keyboard) and a video display 354. The computing system 342 resides in the POS terminal 304. Further details of the computing system 342 are described below. In other embodiments, the computing system does not reside within the POS terminal 304, and the POS terminal 304 communicates with the computing system via a data interface, a data communication bus, or a data communication network.

  In the embodiment shown in FIG. 3, various input / output devices communicate with the POS terminal 304 via a data communication bus 310, such as a universal serial bus. In other embodiments, various input / output devices communicate with the POS terminal 304 via a local area network (such as an Ethernet network) or via a separate interface.

  The POS terminal 304 communicates with the data communication network 110 via a data network hub 370 (such as an Ethernet hub). The POS terminal 304 receives the image 321 via the digital camera 322 and displays the image 325 via the video display 324. The image 325 can also be displayed on the video display 354, but the video display 354 is often accessible only to the operator of the POS terminal 304 so that the video display 324 is easily accessible to the customer. Configured to be. The POS terminal 304 receives the acoustic signal 331 via the acoustic receiver (microphone) 332 and transmits the acoustic signal 335 via the acoustic transmitter (speaker) 334. The POS terminal 304 can communicate with other input / output devices. For example, bar code reader 352 receives optical signal 351.

  The POS terminal 304 receives the RF signal 311 via the antenna 316 and communicates with the RF transceiver 312 that transmits the RF signal 315. For simplicity, a single RF transceiver is shown. In general, RF transceiver 312 represents multiple RF transceivers or multimode RF transceivers. For example, the RF transceiver 312 communicates with a wireless local area network (such as WiFi), a near field RF network (such as Bluetooth), and a near field communication network (such as used for an RF identification device). Can do.

  FIG. 3 illustrates one embodiment of a vendor trading system. Those skilled in the art will recognize that other embodiments of the vendor trading system may include fewer or more components.

  One embodiment of a computing system 242 within the mobile communication device 102 (FIG. 2) is schematically illustrated in FIG. Those skilled in the art can construct the computing system 242 from various combinations of hardware, firmware, and software. Those skilled in the art will recognize one or more general purpose microprocessors, one or more digital signal processors, one or more application specific integrated circuits (ASICs), and one or more field programmable gate arrays ( A computing system 242 can be constructed from various electronic components, including FPGAs.

  The computing system 242 includes a computer 402 that includes a central processing unit (CPU) 404, a memory 406, and a data storage device 408. Data storage device 408 includes at least one persistent, non-transitory, tangible computer readable medium, such as non-volatile semiconductor memory or a magnetic hard drive. In some embodiments, the data storage device 408 is a removable flash memory card.

  Computing system 242 includes user input device interface 420 that interfaces computer 402 with user input device 202, RF transceiver interface 422 that interfaces computer 402 with RF transceiver 212, and computer 402 with digital camera 222. A digital camera interface 424 that connects, a video display interface 426 that interfaces the computer 402 with the video display 224, an acoustic receiver interface 428 that interfaces the computer 402 with the acoustic receiver 232, and the computer 402 Acoustic transmitter interface that interfaces with acoustic transmitter 234 Further comprising a 430 and an auxiliary port interface 432 that connects the computer 402 auxiliary port 252 and interface.

  One embodiment of a computing system 342 within the vendor trading system 104 (FIG. 3) is schematically illustrated in FIG. Those skilled in the art can construct the computing system 342 from various combinations of hardware, firmware, and software. Those skilled in the art will recognize one or more general purpose microprocessors, one or more digital signal processors, one or more application specific integrated circuits (ASICs), and one or more field programmable gate arrays ( A computing system 342 can be constructed from various electronic components, including FPGAs.

  The computing system 342 includes a computer 502 that includes a central processing unit (CPU) 504, a memory 506, and a data storage device 508. Data storage device 508 includes at least one persistent, non-transitory, tangible computer readable medium, such as non-volatile semiconductor memory or a magnetic hard drive.

  The computing system 342 includes a user input device interface 520 that interfaces the computer 502 with the user input device 302, a video display interface 522 that interfaces the computer 502 with the video display 354, and a data communication bus 310. And a data communication bus interface 524 that interfaces with. Data may be received by computing system 342 via a data input device (not shown) coupled to data communication bus 310. Data may be transmitted from computing system 342 via a data output device (not shown) coupled to data communication bus 310. One example of a combined data input / output device is a data network hub 370 (FIG. 3).

  As is well known, computers operate under the control of computer software that defines the overall operation of the computer and applications. For computing system 242 (FIG. 4), CPU 404 controls the overall operation of computer 402 and the application by executing computer program instructions that define the overall operation and application. Computer program instructions can be stored in data storage device 408 and loaded into memory 406 when execution of the program instructions is desired. The algorithm schematically shown as method steps in the flowcharts of FIGS. 8A and 8B below is defined by computer program instructions stored in memory 406 or data storage device 408 (or a combination of memory 406 and data storage device 408). Can be controlled by the CPU 404 executing computer program instructions. For example, the computer program instructions may be implemented as computer executable code programmed by those skilled in the art to implement the algorithm. Thus, by executing the computer program instructions, the CPU 404 executes the algorithm schematically shown as the method steps of the flowcharts of FIGS. 8A and 8B.

  For computing system 342 (FIG. 5), CPU 504 controls the overall operation of computer 502 and the application by executing computer program instructions that define the overall operation and application. Computer program instructions may be stored in data storage device 508 and loaded into memory 506 when execution of the program instructions is desired. The algorithm schematically shown as method steps in the flowchart of FIG. 7 below may be defined by computer program instructions stored in memory 506 or data storage device 508 (or a combination of memory 506 and data storage device 508); It can be controlled by a CPU 504 that executes computer program instructions. For example, the computer program instructions may be implemented as computer executable code programmed by those skilled in the art to implement the algorithm. Thus, by executing the computer program instructions, the CPU 504 executes the algorithm schematically shown as the method steps of the flowchart of FIG.

  FIG. 6 shows a message flow diagram for an example of an electronic payment transaction. An electronic payment transaction consists of the three network elements previously shown in FIG. 1, namely the mobile communication device 102 (operated by the customer), the vendor transaction system 104 (operated by the vendor), and the transaction processing. With transaction processing system 122 (operated by a service provider).

  A customer purchases a product from a vendor. The vendor processes the sales transaction data at the POS terminal 304 (FIG. 3) and sends a message 601 from the vendor transaction system 104 to the mobile communication device 102. The mode of transmission will be described in detail below. Message 601 includes billing information such as transaction identification number, vendor identification number, date, time, list of products sold, and price.

  After message 601 is received, mobile communication device 102 (FIG. 2) processes message 601 and displays the bill on video display 224. The customer then enters a payment instruction via the user input device 202. The mobile communication device 102 sends a message 603 to the vendor trading system 104. Message 603 includes payment information such as the customer's name, credit card account number, security code, and the like.

  After message 603 is received, vendor transaction system 104 processes message 603 and sends message 605 to transaction processing system 122. Message 605 includes vendor information, customer information, and information regarding a particular transaction.

  After message 605 is received, transaction processing system 122 processes message 605, looks up additional merchant information and customer information from the database, and performs an authentication check. If the transaction fails the authentication check, transaction processing system 122 rejects the transaction. If the transaction passes the authentication check, transaction processing system 122 authorizes the transaction. Transaction processing system 122 then sends message 607 to vendor transaction system 104. Message 607 includes transaction processing information, such as an authorization status (denied or allowed) and a transaction authorization identification number. In some embodiments, transaction processing system 122 also sends message 609 to mobile communication device 102. The content of message 609 is similar to the content of message 607. In some embodiments, the transaction processing system 122 sends the message to the mobile communication device 102 via the vendor transaction system 104.

  In some embodiments, the message is checked for errors and retransmitted as necessary. In some embodiments, the message is encrypted before being sent and decrypted after being received. In some embodiments, the message is authenticated (eg, the identity of the sender is verified by a third party).

  Referring to FIG. 3, in one embodiment, the POS terminal 304 encodes the message 601 into a barcode 360 and an image of the barcode 360 is displayed on the video display 324. Depending on the amount of information transmitted, the barcode may be a one-dimensional (1-D) barcode, such as a Unified Product Code (UPC) 1102 (FIG. 11A) or an International Article Number Code (EAN). Alternatively, it may be a two-dimensional (2-D) barcode such as a Quick Response (QR) code 1104 (FIG. 11B) or a data matrix code (Data Matrix Code). For simplicity, the barcode 360 is shown as a 1-D barcode.

  In one embodiment, the message is encoded into multiple barcodes when the size of the message exceeds the data capacity of one barcode. Multiple barcodes may be transmitted in series or in parallel.

  The barcode 360 is then received by the mobile communication device 102 (FIG. 2) and the digital camera 222 captures an image of the barcode 360. The mobile communication device 102 then decodes the message 601 from the barcode 360 (eg, via appropriate image processing software), processes the message 601 and displays the bill on the video display 224 to the customer. To do. The customer then enters a payment instruction via the user input device 202. The mobile communication device 102 processes the payment instruction, generates a message 603, encodes the message 603 into a barcode 260, and displays an image of the barcode 260 on the video display 224.

  The barcode 260 can then be received by the vendor trading system 104 (FIG. 3) and the barcode 260 can be scanned by the barcode reader 352 or an image of the barcode 260 can be captured by the digital camera 322. The POS terminal 304 decrypts the message 603 from the barcode 260, processes the message 603, and sends the message 605 to the transaction processing system 122 via the data communication network 110 (FIG. 1). Transaction processing system 122 receives message 605, processes message 605, and sends message 607 to transaction processing system 104 via data communication network 110. Transaction processing system 122 also sends message 609 to mobile communication device 102 via data communication network 110. For example, message 609 may be delivered over a cellular telephone network.

  In another embodiment, messages between the mobile communication device 102 and the vendor trading system 104 are encoded into an acoustic signal. The POS terminal 304 acoustically encodes the message 601 into the acoustic signal 335, and the acoustic signal 335 is transmitted by the acoustic transmitter 334 (FIG. 3). The acoustic signal 335 is received by an acoustic receiver 232 in the mobile communication device 102 (FIG. 2). Similarly, the mobile communication device 102 acoustically encodes the message 603 into an acoustic signal 235 that is transmitted by the acoustic transmitter 234. The acoustic signal 235 is received by an acoustic receiver 332 in the vendor trading system 104 (FIG. 3). The acoustic signal is carried by an acoustic wave transmitted between the acoustic transmitter and the acoustic receiver.

  FIG. 7 shows a flowchart of the steps performed by vendor trading system 104 in one embodiment of an electronic trading process. Transaction data is received at step 702 and processed at step 704. A message 601 is generated at step 706 and encoded into a barcode 360 at step 708. A bar code is displayed at step 710. The process then proceeds to step 712 where the vendor trading system 104 waits for a response from the mobile communication device 102.

  At step 714, the vendor trading system 104 receives the barcode 260, and the barcode 260 is decrypted into a message 603 at step 716. Message 603 is processed at step 718. A message 605 is generated at step 720 and transmitted at step 722. The process then proceeds to step 724 where the vendor trading system 104 waits for a response from the trading processing system 122. At step 726, vendor trading system 104 receives message 607.

  FIG. 8A shows a flowchart of the steps performed by mobile communication device 102 in one embodiment of an electronic transaction process. At step 802, the mobile communication device 102 receives the barcode 360, and the barcode 360 is decoded into a message 601 at step 804. At step 806, message 601 is processed and the transaction is displayed at step 808. The process then proceeds to step 810 where the mobile communication device 102 waits for user input.

  At step 812, the mobile communication device 102 receives user input and the user input is processed at step 814. Message 603 is generated at step 816 and encoded into barcode 260 at step 818. Bar code 260 is displayed at step 820. The process then proceeds to step 822 where the mobile communication device 102 waits for a response from the transaction processing system 122. At step 824, mobile communication device 102 receives message 609.

  FIG. 8B shows a flowchart of steps performed by the mobile communication device 102 in another embodiment of electronic transaction processing. In this process, steps 808 to 814 in FIG. 8A are omitted. No user input is required to complete the transaction (eg, when the price of the transaction is below a user-defined threshold).

  At step 802, the mobile communication device 102 receives the barcode 360, and the barcode 360 is decoded into a message 601 at step 804. At step 806, message 601 is processed. Processing then proceeds to step 816 where message 603 is automatically generated by mobile communication device 102 in response to message 601. Message 603 is encoded into bar code 260 at step 818 and bar code 260 is displayed at step 820. Processing then proceeds to step 822 where the mobile communication device 102 waits for a response from the transaction processing system 822. At step 824, mobile communication device 102 receives message 609.

  As explained above, the message may be encoded into multiple barcodes. In one embodiment, at step 708 (FIG. 7), message 601 is encoded into a plurality of barcodes. The plurality of barcodes may be displayed in parallel or serial at step 710 before the vendor trading system 104 enters a wait state at step 712. Message 601 may also be encoded into a combination of a barcode and other graphical elements, including non-barcode text and images (drawings or videos). In one embodiment, at step 802 (FIGS. 8A and 8B), a plurality of barcodes or combinations of barcodes and other graphical elements are received in parallel or in series. The barcode is then decoded at step 804.

  The mobile communication system 102 may similarly encode a message into multiple barcodes or a combination of barcodes and other graphical elements (in parallel or serial), and the vendor trading system 104 may include multiple barcodes or barcodes. A combination of code and other graphical elements can be received (in parallel or in series).

  The electronic transaction described above was an electronic payment. In general, electronic trading refers to electronic information exchange. 9 and 10 show a flowchart of the steps for an electronic transaction in which a user queries the automated information system for instructions.

  FIG. 9 shows a flowchart of the steps performed by the mobile communication device. In step 902, the mobile communication device receives user input (inquiry for instructions in this example). User input is processed at step 904 and message 1 containing the query is generated at step 906 and encoded into barcode 1 at step 908. At step 910, the barcode 1 image is displayed on the video display of the mobile communication device.

  FIG. 10 shows a flowchart of the steps performed by the automated information system. The automatic information system is equipped with a barcode reader, and the automatic information system can also include a digital camera. As described above, a second mobile communication device can be used for the automated information system. In step 1002, the user positions the video display of the mobile communication device under a bar code reader and the automatic information system receives bar code 1. In step 1004, barcode 1 is decoded into message 1, and message 1 is processed in step 1006. In step 1008, the automatic information system generates output information (in this example, the requested instruction), and in step 1010, the output information is displayed.

  The automatic information system is equipped with a video display. The output information can be displayed in various ways. In one example, the output information is encoded into a barcode 2, which is then captured with a digital camera in the mobile communication device. In one embodiment, after the mobile communication device receives, decodes, and processes the barcode 2, the mobile communication device can respond with a barcode 3 that includes a further information query. In another example, text and graphical map instructions are displayed on the automatic information system video display.

  It should be noted that the information exchange session may also be initiated by the mobile communication device capturing a bar code image displayed by the automated information system. Subsequent information exchange between the mobile communication device and the automated information system may then occur as needed.

  Information exchange via bar codes is generally one-way, for example, a bar code reader at a supermarket checkout counter reads a bar code on a product, or a mobile phone bar codes on a vendor's advertisement. Read. In the embodiments of the invention described herein, information exchange via barcodes can be bi-directional.

  Various information can be encoded into the barcode. Examples of information vary in complexity from numerical values to complex symbols such as alphanumeric characters and kanji, and generic data encoded with bits. In this specification, information encoded into a barcode is called a data set. As used herein, a data set is generated by a data source. In this specification, a data set decoded from a barcode is called a reproduced data set. The data set is received by the communication device and the trading system via a user input device for manual input and via a data input device for automatic input from a data communication link. The data set may be transmitted to the data communication link by the communication device and the trading system via a data output device for automatic output.

  The amount of information that can be encoded into the barcode depends on various parameters. Examples of parameters include (a) dimension. A two-dimensional barcode can store more information than a one-dimensional barcode. (B) Physical size. Larger barcodes can store more information than smaller barcodes. (C) Resolution. Bar codes are formed from graphical elements, and higher resolution allows for denser graphical elements. For a given physical size barcode, a barcode with a higher resolution can store more information than a barcode with a lower resolution. (D) Encoding method. Some encoding schemes are more efficient than others. As explained above, multiple barcodes can be used to increase information storage capacity.

  A small physical size is advantageous for many applications, and often the information storage capacity of a barcode is limited by the resolution of the graphical element on which the barcode is formed. Traditionally, barcodes are images printed on a substrate such as paper or film, and resolution has been limited by the printing process and the substrate surface. The resolution is also limited by the scanner used to read the barcode.

  More recently, barcodes can be displayed as images on a video display. As the resolution of video displays (even on mobile phones) improves, the barcode storage capacity can increase. High-resolution barcodes naturally require a high-resolution reader suitable for it. Instead of a conventional scanner, a high resolution image of a barcode can be captured by a high resolution digital camera (even on a mobile phone) and decoded by image processing software.

  In this specification, the barcode includes a physical barcode and an image of the barcode. The physical barcode is formed from graphical elements generated on the substrate, for example, the physical barcode can be printed as a dot of ink on a piece of paper or etched as a structure on a metal film Can be done. Barcode images are formed from graphical elements (such as pixels) displayed on a video display. As used herein, devices and systems “receive a barcode” either as the output of a barcode scanner or as an image of a barcode captured by a digital camera. Bar code scanners can scan both physical barcodes and barcode images. Digital cameras can capture images of both physical barcodes and images of barcodes displayed on a video display. As used herein, “bar code receiver” refers to a bar code scanner and a digital camera.

  The information stored in the bar code may itself be the final information desired by the user, such as product identification information, a list of purchased items, and a ticket authorization code. However, the information stored in the barcode can also launch a software application stored in the device or system. For example, a mobile phone can capture an image of a barcode on a vendor's advertisement display. The decrypted information is a set of instructions that launch a web browser on the mobile phone and log on to the vendor's website. The small amount of information stored in the barcode can therefore perform complex processing.

  Initially, a barcode was a one-dimensional (1-D) barcode formed from a series of bars (straight line) arranged along a straight line. For example, see 1-D barcode (UPC) 1102 in FIG. 11A. However, when using a two-dimensional barcode, there is greater flexibility in the graphical elements that form the two-dimensional barcode. For example, see 2-D barcode (QR) 1104 in FIG. 11B. Commonly used barcodes are specified by industry standards and various versions have been developed.

  In barcode generalization, a data set can be encoded into a one-dimensional or two-dimensional graphical representation formed from graphical elements. Graphical elements are not limited to bars. Various parameters of the graphical element such as shape, size, orientation, density, and geometric configuration may be user defined. For example, instead of straight segments, graphical elements may be dots, arcs, curved segments, circles, ellipses, triangles, squares, rectangles, and polygons, as well as other user-defined geometric shapes. Geometric shapes such as circles and squares may be filled (overall or in a pattern) or unfilled. FIG. 11C shows an example of a generalized 2-D graphical representation 1106. In general, the encoding scheme may be user defined. Note that barcodes are a subset of the graphical representation.

  The graphical representation can evolve into a new industry standard or can be maintained as a proprietary protocol (eg, for secret encoding). In this specification, the graphical representation includes a physical graphical representation and an image of the graphical representation. The physical graphical representation is formed from graphical elements generated on the substrate, for example, the physical graphical representation can be printed as a dot of ink on a piece of paper or etched as a structure on a metal film Can be done. An image of a graphical representation is formed from graphical elements (such as pixels) displayed on a video display. As used herein, devices and systems “receive a graphical representation” either as the output of a graphical representation scanner or as an image of a graphical representation captured with a digital camera. The graphical representation scanner can scan both physical graphical representations and images of graphical representations. A digital camera can capture images of both a physical graphical representation and an image of a graphical representation displayed on a video display. As used herein, “graphical expression receiver” refers to a graphical expression scanner and a digital camera. In embodiments of the present invention, various examples of information exchange performed via bar codes (as described above) are performed via graphical representations with appropriate hardware and software.

  As described above with reference to FIGS. 1, 2, and 3, messages may be exchanged between the mobile communication device 102 and the vendor trading system 104 via acoustic signals carried in acoustic waves. Various methods for digital modulation of acoustic signals are well known in the art and will not be described herein. In general, a data set can be generated by a data source and encoded into an acoustic signal. The data set can be reproduced by decoding the acoustic signal. Various examples of information exchange performed via bar codes may be performed via acoustic signals. Information exchange via acoustic signals is advantageous, for example, for mobile communication devices that are not equipped with a video display and a digital camera. In order to transmit acoustic signals from the mobile communication device to the vendor trading system (or automated information system), a speaker on the mobile communications device is placed near the microphone on the vendor trading system (or automated information system). In order to transmit acoustic signals from the vendor trading system (or automated information system) to the mobile communications device, a microphone on the mobile communications device is placed near a speaker on the vendor trading system (or automated information system). As described above, the second mobile communication device may be used for a vendor trading system (or automated information system).

  It is to be understood that the above-described modes for carrying out the invention are illustrative and illustrative rather than restrictive in all respects, and the scope of the invention disclosed in this specification is intended to It should be determined from the claims which are not to be determined from the detailed description, but to be construed by the full scope permitted by patent law. The embodiments shown and described herein are merely illustrative of the principles of the invention and it is understood that various modifications can be made by those skilled in the art without departing from the scope and spirit of the invention. I want to be. Those skilled in the art can implement various other feature combinations without departing from the scope and spirit of the invention.

Claims (1)

A method for exchanging information in a mobile communication device, comprising:
Receiving at least one first graphical representation comprising a first data set;
Decoding the at least one first graphical representation and reproducing the first data set, wherein the first data set includes billing information;
Generating a second data set based at least in part on the reproduced first data set, wherein the second data set includes payment information;
Encoding the second data set into at least one second graphical representation;
Displaying at least one image of the at least one second graphical representation.

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