Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
263 words
A remote transmitter control system comprising: (a) a control station for generating a frequency modulated control signal that represents binary digital data, said control station including (1) a variable frequency oscillator, said variable frequency oscillator providing two frequencies f 0 and f 1 that are harmonically related, in phase and f 0 is greater that f 1 ; (2) a source of binary digital data; (3) a first modulator, said first modulator being responsive to said f 0 and f 1 frequencies and to said source of binary digital data for generating a frequency modulated control signal wherein f 0 and f 1 respectively represent the two states of said binary data; and (b) a remote transmitter station including a control signal responsive means for receiving said frequency modulated control signal and independently generating a modulated transmission signal that represents said binary digital data, and a transmitter means, said control signal responsive means including (1) a local oscillator, the output of said local oscillator being transmit frequencies f A and f B ; (2) a second modulator, said second modulator receiving the transmit frequencies f A and f B from said local oscillator, the output of said second modulator being applied to the input of said transmitter means; and (3) a phase-locked-loop demodulator, said phased-locked-loop demoulator being responsive to said frequency modulated control signal for providing frequency f 0 to said local oscillator, providing control signals representing the digital data to said second modulator, and providing a power control signal to said transmitter when transmit frequencies f A and f B are present.
Claim 2
Dependent Claim
263 words
A remote transmitter control system comprising: (a) a control station for generating a frequency modulated control signal that represents binary digital data, said control station including (1) a variable frequency oscillator, said variable frequency oscillator providing two frequencies f 0 and f 1 that are harmonically related, in phase and f 0 is greater that f 1 ; (2) a source of binary digital data; (3) a first modulator, said first modulator being responsive to said f 0 and f 1 frequencies and to said source of binary digital data for generating a frequency modulated control signal wherein f 0 and f 1 respectively represent the two states of said binary data; and (b) a remote transmitter station including a control signal responsive means for receiving said frequency modulated control signal and independently generating a modulated transmission signal that represents said binary digital data, and a transmitter means, said control signal responsive means including (1) a local oscillator, the output of said local oscillator being transmit frequencies f A and f B ; (2) a second modulator, said second modulator receiving the transmit frequencies f A and f B from said local oscillator, the output of said second modulator being applied to the input of said transmitter means; and (3) a phase-locked-loop demodulator, said phased-locked-loop demoulator being responsive to said frequency modulated control signal for providing frequency f 0 to said local oscillator, providing control signals representing the digital data to said second modulator, and providing a power control signal to said transmitter when transmit frequencies f A and f B are present.
Claim 3
Dependent Claim
38 words
The system of claim 1 wherein: (a) said source of binary digital data is responsive to signal f 0 and provides binary signals that are in phase with f 0 and f 1 when modulating said first modulator.
Claim 4
Dependent Claim
17 words
The system of claim 2 wherein: (a) said local oscillator is phase locked to f o .
Claim 5
Dependent Claim
33 words
The system of claim 3 wherein: (a) the outputs f A and f B of said local oscillator are in phase and f B is an integer frequency multiple of f A .
Claim 6
Dependent Claim
38 words
The system of claim 4 wherein: (a) the outputs f A and f B of said local oscillator are 180° out of phase with respect to each other and f A is in phase with f o .