×

Universal transmitter

  • US 6,249,673 B1
  • Filed: 11/09/1998
  • Issued: 06/19/2001
  • Est. Priority Date: 11/09/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A universal transmitter, comprising:

  • a detection circuit to detect a frequency and a modulation pattern of a signal transmitted from a separate transmitter, the detection circuit including an antenna to receive the signal, a wave shaping circuit coupled to the antenna to condition the signal, and a wave envelope detection circuit coupled to the antenna to detect values corresponding to a plurality of timing intervals of the signal, each of said plurality of timing intervals being representative of a corresponding transmission period within a transmission cycle of the signal;

    a memory;

    a processor coupled to the detection circuit and the memory, the processor to (i) count a plurality of transitions of the signal, (ii) determine the timing intervals of the received signal, (iii) determine a frequency of the signal based on the count and the timing intervals, and (iv) store the frequency and values representative of the modulation pattern in the memory; and

    a transmitting circuit coupled to the processor, the transmitting circuit being operable to transmit an output signal having the frequency and the modulation pattern of the signal.

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