×

Apparatus for transmitting information by angle modulation

  • US 4,794,621 A
  • Filed: 10/14/1987
  • Issued: 12/27/1988
  • Est. Priority Date: 08/26/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus for generating an angle modulated electric wave of a predetermined nominal frequency, comprisinggenerator means for generating a signal of a frequency which is a multiple of said nominal frequency,a counter having an input terminal coupled to an output terminal of said generator means and having at least two output terminals, each of said output terminals producing an output signal at a predetermined count of said counter,gate means coupled to each of said output terminals, each said gate means having an activation input,a decoder having an input terminal for receiving a modulating signal and an output terminal for each of said gate means for acitvating one of said gate means in response to a phase shift determining parameter of said input signal,means having a control input coupled to the output of each of said gate means and having an output terminal for providing a signal which changes its state upon receipt of an input signal at said control input.

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