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Bidirectional data transfer and storage system

  • US 4,130,738 A
  • Filed: 09/20/1977
  • Issued: 12/19/1978
  • Est. Priority Date: 06/10/1976
  • Status: Expired due to Term
First Claim
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1. A bi-directional data transfer and storage system for on-line communication with telephone apparatus wherein selected data from telephone apparatus is first fed to a portable random access memory which subsequently operates on demand to display said data and/or output selected stored data to external means for dialing a telephone and when desirable thereafter communicating data over a telephone channel, the improvement comprising:

  • a device carried or worn by the user including a casing, said random access memory housed within said casing, said memory having a plurality of selectable memory addresses for storing respective data signals thereat, address circuitry therefor, manual address selector means on said casing coupled to said address circuitry for accessing a desired memory address, at least one optical energy input communications channel coupled to said memory for coupling externally applied alpha-numeric data and clock signals thereto for reading selected data signals into a desired address of said memory under the control of said clock signals, an internal source of clock signals and at least one optical energy output communications channel coupled to said memory and said internal source of clock signals for reading out on demand selected data signals from a desired address of said memory and coupling said data signals and said clock signals to said external means.

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