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Electronic notebook for use in data gathering, formatting and transmitting system

  • US 4,016,542 A
  • Filed: 04/23/1974
  • Issued: 04/05/1977
  • Est. Priority Date: 04/23/1974
  • Status: Expired due to Term
First Claim
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1. A self-contained, hand-held portable data collection device for receiving and storing character data for subsequent read-out and transmission of the character data in a desired format to a utilization means, comprising:

  • entry means for supplying coded signal representations of character data and controls, the character data coded signals to be stored in said device at addresses determined in accordance with control coded signals associated with the character data coded signals,A random access memory having plural character data storage positions arranged in plural lines, each line including plural said storage positions,means for addressing the memory in accordance with the control coded signals for entry and storage of the character data coded signals in an addressed position,display means for visually displaying characters represented by character data coded signals,output connection means,said addressing means including means for selectively addressing said memory for reading out character data coded signals stored in positions of said memory and for selectively supplying said signals read out from said memory to said display means for display thereof, and to said output connection means to be available for transmission thereof to a utilization means, andelectrical energy storing means integral with said self-contained hand-held portable data collection device for supplying electrical energy to the aforesaid means for operation of the said device, said electrical energy storing means comprising;

    first and second energy storing cells, and means connecting said first and second energy storing cells normally to enable said first cell to supply electrical energy as aforesaid and to permit depletion of substantially all electrical energy stored in said first cell prior to depletion of the electrical energy stored in said second cell, said connecting means being responsive to depletion of the electrical energy stored in said first cell below a predetermined level, automatically to enable said second cell to supply energy to at least said memory means for maintaining storage of said coded signals theretofore entered and stored therein.

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