×

Sweep frequency control apparatus and method

  • US 3,883,868 A
  • Filed: 07/23/1973
  • Issued: 05/13/1975
  • Est. Priority Date: 07/23/1973
  • Status: Expired due to Term
First Claim
Patent Images

1. Apparatus for controlling the operation of a plurality of spaced, independent, actuatable mechanisms comprising:

  • a control module for each mechanism, respectively, each module having first means permitting an enabling device capable of resonanting at a predetermined frequency to be inductively coupled thereto;

    a sweep generator operable to provide an output signal whose frequency varies successively over a range of frequencies;

    first conductor means common to the modules for coupling the sweep generator thereto to permit said output signal to be applied simultaneously to the modules, each module having second means thereon responsive to said output signal when the module is inductively coupled to an enabling device and when the output signal has the frequency at which the corresponding enabling device resonates for generating a first signal indicating the inductive coupling between the module and the enabling device and indicating the resonant condition of the last-mentioned enabling device, each module having third means responsive to a second signal for actuating the corresponding mechanism;

    a central controller; and

    second conductor means common to said modules for connecting said controller thereto to permit said controller to receive a first signal from a module, said controller being operable to successively address the modules and to generate a second signal after a first signal has issued from a module, said second conductor means being operable to direct the second signal to the third means of a module to actuate the corresponding mechanism.

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