Portable intelligent shopping device

• US 20040225613A1
• Filed: 05/05/2003
• Published: 11/11/2004
• Est. Priority Date: 05/05/2003
• Status: Active Grant

• Current Assignee: Toshiba Global Commerce Solutions Holdings Corporation (Toshiba Corporation)
• Original Assignee: International Business Machines Corporation
• Inventors: Narayanaswami, Chandrasekhar, Raghunath, Mandayam T.
• Granted Patent: US 8,065,235 B2
• Time in Patent Office: Days
• US Class Current: 705/64
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G06Q 20/321 using wearable devices
• CPC Class Codes: G06Q 20/327 Short range or proximity payments by means of M-devices
• CPC Class Codes: G06Q 20/3274 using a pictured code, e.g. barcode or QR-code, being displayed on the M-device
• CPC Class Codes: G06Q 20/363 with the personal data of a user
• CPC Class Codes: G06Q 20/382 insuring higher security of transaction
• CPC Class Codes: G06Q 20/40 Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
• CPC Class Codes: G06Q 30/06 Buying, selling or leasing transactions
• CPC Class Codes: G06Q 30/0637 Approvals
• CPC Class Codes: G06Q 30/0641 Shopping interfaces
• CPC Class Codes: G07F 7/0866 by active credit-cards adapted therefor G07F7/1008 takes precedence
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
• CPC Class Codes: G07F 7/1025 Identification of user by a PIN code
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04L 63/18 using different networks or channels, e.g. using out of band channels cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/33 : using wearable devices, e.g. using a smartwatch or smart-glasses
• CPC Class Codes: H04W 12/50 : Secure pairing of devices
• CPC Class Codes: H04W 12/77 : Graphical identity
• CPC Class Codes: H04W 4/02 : Services making use of location information
• CPC Class Codes: H04W 4/24 : Accounting or billing

Abstract

A portable intelligent shopping device which can be worn as a wristwatch or carried on a belt. It makes paying for purchases more secure. The device stores the wearer'"'"'s private key and digital certificate. It can also store the public keys of various stores. When the wearer (shopper) buys something from a store, the store can request a payment of the appropriate amount from the wearer'"'"'s watch. The authorization for payment of the amount specified by the request for payment may be transmitted using IR or RF. The watch can then display the amount and request the shopper to confirm the transaction by entering a PIN number by tapping on the touch screen or using the roller wheel. Once the correct PIN is entered, the watch can send a message to the store authorizing payment of the requested amount. The store can verify the message based on the shopper'"'"'s encrypted certificate by decrypting it using the shopper'"'"'s public key. The entire payment authorization signal can be encrypted by the shopper using the store'"'"'s public key so that only the store can decrypt it with its private key.

Claims

1. A mobile information processing device for purchasing items from a store, the device comprising:

a memory for storing information comprising a private key and certificate for a user of the device;

a receiver for receiving a request for payment authorization message from a sales terminal in the store;

logic for processing the request for payment authorization message received from the sales terminal, the message comprising a price for a selected item;

logic for presenting the price to the user;

a user interface device for enabling acceptance by the user of the price responsive to the entry of a personal identification number for the user;

logic for generating a price authorization message for transmission to the sales terminal wherein the price authorization message includes an e-signature of the user;

at least one encryption engine for protecting communication; and

logic for transmitting the price authorization message to the sales terminal.

2. The mobile information processing device of claim 1, further comprising a radio transceiver for transmitting radio signals to the sales terminal and for receiving radio signals from the sales terminal.

3. The mobile information processing device of claim 1, further comprising an infrared transceiver for transmitting infrared signals to the sales terminal and receiving infrared signals from the sales terminal.

4. The mobile information processing device of claim 1 further comprising a display driver for displaying a bar code comprising a representation of the user'"'"'s acceptance of the price and a personal identification number of the user.

5. The mobile information processing device of claim 1, further comprising an application-specific integrated circuit comprising the logic for processing the price signal, the logic for transmitting the price authorization message and the logic for presenting the price to the user.

6. The mobile information processing device of claim 1, further comprising circuitry or logic for ensuring a receiving party that the price authorization message is free from inteijacence.

7. The mobile information processing device of claim 1, wherein the encryption engine further comprises logic for encrypting the user'"'"'s certificate using the user'"'"'s private key.

8. A method for purchasing a selected item from a store, the method comprising:

receiving a request for payment authorization from a sales terminal of the store, the request for payment authorization comprising at least one selected item and a price for each selected item;

presenting the price to a shopper;

presenting a prompt to the shopper for acceptance of the price;

receiving an indication from the shopper of the acceptance of the price; and

encrypting a payment authorization signal using a public key of the store, the payment authorization signal confirming a purchase and comprising an encrypted version of a certificate of the shopper;

sending the payment authorization signal to the sales terminal to confirm the purchase.

9. The method of claim 8 further comprising verifying the payment authorization signal based on the certificate decrypted using a public key of the shopper.

10. The method of claim 8 wherein the step of receiving the request for payment authorization from a sales terminal comprises receiving and processing a radio signal.

11. The method of claim 8 wherein the step of receiving the request for payment authorization from a sales terminal comprises receiving and processing an infrared signal.

12. The method of claim 8 further comprising requesting a personal identification code from the shopper as a condition for sending the payment authorization signal.

13. The method of claim 12 further comprising receiving shopper information through a touch screen, the shopper information comprising the personal identification code of the shopper.

14. The method of claim 12 further comprising receiving information through a roller wheel input device, the information comprising the personal identification code of the shopper.

15. The method of claim 12 wherein the step of sending the payment authorization comprises displaying a two dimensional bar code comprising a payment authorization message.

16. The method of claim 12 wherein the step of sending the payment authorization signal comprises displaying a sequence of one-dimensional bar codes comprising a confirmation of the purchase.

17. A method for selling an item by a store, comprising steps of:

transmitting a request for payment authorization for a purchase of a selected item to a mobile information processing device, the request comprising a price for the selected item, an encrypted version of a certificate of the store, and an identification of the selected item;

receiving an encrypted message confirming the purchase of the item, the message comprising an encrypted certificate of a shopper;

verifying the message confirming the purchase by decrypting the message using a private key of the store and by decrypting the certificate using a public key of the shopper.

18. The method of claim 17 wherein the step of transmitting the request for payment comprises transmitting a radio signal to the mobile information processing device.

19. The method of claim 17 wherein the step of transmitting the request for payment comprises transmitting an infrared signal to the mobile information processing device.

20. The method of claim 17 wherein the step of receiving an encrypted message confirming the purchase of the item comprises receiving a radio signal.

21. The method of claim 17 wherein the step of receiving an encrypted message confirming the purchase of the item comprises receiving an infrared signal.

22. The method of claim 17 wherein the step of receiving an encrypted message confirming the purchase of the item comprises reading a bar code from the mobile information processing device.

23. A method of selling items in a store comprising the steps of:

receiving a signal from a mobile information processing device, the signal comprising information including a list of items of interest; and

transmitting a signal indicating the location of items of interest in the store to the mobile information processing device.

24. The method of claim 23 wherein the step of transmitting a signal comprises transmitting a signal for causing a lighting device associated with an item of interest to light up.

25. The method of claim 24 wherein the step of transmitting a signal further comprises causing a lighting device associated with an item of interest to flash on and off.

26. The method of claim 23 wherein the step of transmitting a signal comprises causing a lighting device associated with an item of interest to display a unique signal to distinguish the item of interest from other items of interest selected by other mobile information processing devices.

27. The method of claim 24 wherein the item of interest lights up when the mobile information processing device is within a specified range of the item of interest such that the item of interest is within line of sight of a shopper in possession of the mobile information processing device.

28. The method of claim 23 further comprising the steps of

sorting a list of items of interest based on the location of the items along a predefined route in a store;

and

generating a route map indicating the location of the items of interest in the list.

29. The method of claim 28 wherein the generating step further comprises dynamically re-computing the route map responsive to a deviation in an order of selection of items along the route.

30. A method of selling items in a shopping mall comprising the steps of:

receiving a signal from a mobile information processing device, the signal comprising information including a list of items of interest;

transmitting a signal indicating the price and location of items of interest in the store to the mobile information processing device.

31. The method of claim 30 wherein the transmitting step further comprises transmitting a signal indicating that an item of interest is selling at a reduced price.

32. The method of claim 30 wherein the information comprises an offering price for an item of interest.

33. The method of claim 30 wherein the transmitting step further comprises transmitting a signal responsive to the offering price.

34. A mobile information processing device comprising a display driver for displaying a bar code comprising a representation of a user'"'"'s acceptance of a price requested by a store for a selected item for purchase.

35. The mobile information processing device of claim 34 wherein the bar code is two-dimensional.

36. The mobile information processing device of claim 34 wherein the bar code is one-dimensional.

37. The mobile information processing device of claim 34 wherein the bar code represents an encrypted payment authorization message that includes an encrypted e-signature.

38. The mobile information processing device of claim 34 further comprising

an input for receiving data from a user, the data comprising purchase information including a price of the selected item for purchase and a personal identification number;

and

logic for converting the purchase information into a bar code.