×

System and process for enabling a predefined function within an implanted device

  • US 4,550,732 A
  • Filed: 03/23/1984
  • Issued: 11/05/1985
  • Est. Priority Date: 03/23/1984
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for enabling a predefined function within a device implanted in a patient from an external command unit, comprising:

  • an external command unit for generating external signals including a first access signal and a command signal;

    an implanted device having means for receiving external signals, means for receiving external command signals, means for storing a temporarily operated selected routine to be generated in response to a command signal from the external command unit, means for decoding the first access signal to prevent access to the routine storing means unless the first access signal is received, and means for detecting the command signal to prevent access to the routine storing unless both the first access signal and the command signal are received, whereby the temporarily operated selected routine is generated only if both the first access signal and the command signal are received.

View all claims
  • 8 Assignments
Timeline View
Assignment View
    ×
    ×