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Portable transaction tracking device

  • US 4,961,158 A
  • Filed: 11/22/1988
  • Issued: 10/02/1990
  • Est. Priority Date: 11/22/1988
  • Status: Expired due to Fees
First Claim
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1. An electronic hand-held memory device comprising:

  • input means for introducing alphanumeric data into said device, said alphanumeric data comprising of transaction descriptions, transacted data, label codes each representative of the leading address of a particular transaction description, said transaction description comprising of transaction unit costs, actual total costs of the said transaction and the quantity of the said transacted items;

    memory means responsive to said input means for storing a plurality of transaction description data and transacted data that are logically linked together, but separately stored in said memory by means of said label code;

    memory means responsive to said input means for storing a plurality of non-transaction data;

    time keeping circuitry means for keeping actual constant time;

    output display means to display desired transaction description data and transacted data, accessed by means of said transaction label codes, introduced by said input means;

    computing means responsive to said transaction label codes corresponding to desired transaction data to sum together the said transaction numeric data stored in association therewith to form information representative of the sum of said numeric data;

    computing means responsive to said transaction label codes corresponding to desired transaction data for multiplying or dividing the said transaction numeric data stored in association therewith to form arithmetic information representative of the arithmetic division or multiplication of the said numeric data by a constant arithmetic value, said constant arithmetic value introduced by said input means;

    control means to label said transacted data, by said time keeping circuitry means, with a time stamp label, such that said transacted data is uniquely defined within said memory means, by means of combining said time stamp label together with said transaction label code;

    interface means for the bi-directional transfer of said transaction description data, said transaction label codes and said transacted data between the said device and an remote electronic device.

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