PURCHASING AID LOGISTICS APPLIANCE

• US 20070145125A1
• Filed: 03/05/2007
• Published: 06/28/2007
• Est. Priority Date: 01/04/2002
• Status: Abandoned Application

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Caci, Joseph, Scanlon, Gregory
• Application Number:
  US11/682,088
• Publication Number:
  US 20070145125A1
• Time in Patent Office: Days
• US Class Current: 235/380
• CPC Class Codes: G06Q 30/06 Buying, selling or leasing transactions
• CPC Class Codes: G06Q 30/0635 Processing of requisition or of purchase orders
• CPC Class Codes: G06Q 30/0641 Shopping interfaces

Abstract

A purchasing aid logistics appliance that assists a purchaser with a shopping list generation, in-store product location, automated checkout, and financial management. The PAL is in the form of a battery operated PAL with touch screen display and multimedia input/output. The PAL functions as a fiduciary aid and two-way communications device secure for managing money and processing perishable data. The PAL can function as a stand-alone device or synchronized with a user'"'"'s personal computer via a RF or IR link.

Claims

1. A handheld device comprising:

encrypted random access memory (RAM) having a disabled mode;

an address decoder;

means for misaligning an address of a memory location in said encrypted RAM by a random number incorporated into said address decoder to encrypt the address to prepare said handheld device for said disabled mode;

an unlocking process capable of performing a multi-step process to access said encrypted RAM in said disabled mode including the steps of;

inserting a smart card into a smart card reader of said handheld device;

accessing a personal identification number on said smart card;

receiving a user entry including a candidate personal identification number;

verifying said personal identification number with said candidate personal identification number;

comparing a secure data hash on said handheld device with a hash stored on said smart card;

unlocking said encrypted RAM if said personal identification number and said secure data hash verify; and

accessing said memory location by said address decoder by using said random number when a secure address range is accessed.

2. The handheld device of claim 1 further comprising:

a plurality of antennas for sending and receiving simultaneous signals;

means for receiving said simultaneous signals on a wireless channel;

means for releasing said wireless channel;

means for exchanging information from said simultaneous signals on a full duplex wireless channel after releasing said wireless channel; and

means for transmitting said information using a special purpose short-range link to provide secure transmission of said financial data.

3. The handheld device of claim 2 further comprising:

means for controlling transmitting power in said full duplex wireless channel.