PULSE TRANSMITTERS HAVING MULTIPLE OUTPUTS IN PHASE RELATIONSHIP AND METHODS OF OPERATION
First Claim
1. An air traffic collision avoidance system comprising a transmitter that provides a plurality of output signals, the transmitter comprising:
- a processor;
a signal generator that provides a generated signal comprising an amplitude modulated radio frequency for transmitting a pulse;
a first circuit that provides a first output signal, responsive to and with higher power than the generated signal, the first output signal having a first phase during transmitting of the pulse; and
a second circuit that provides a second output signal, responsive to and with higher power than the generated signal, the second output signal having a second phase during transmitting of the pulse, the second phase controlled by the second circuit in accordance with the first phase, the second phase, and indicia of a third phase provided by the processor.
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Accused Products
Abstract
A transmitter provides a plurality of output signals. The transmitter includes a processor, a modulator, a first circuit, and a second circuit. The modulator provides a modulated signal responsive to the processor. The modulated signal includes an amplitude modulated radio frequency for transmitting a pulse. The first circuit provides a first output signal, responsive to and with higher power than the modulated signal. The first output signal has a first phase during transmitting of the pulse. The second circuit provides a second output signal, responsive to and with higher power than the modulated signal. The second output signal has a second phase during transmitting of the pulse. The second phase is controlled by the second circuit in accordance with the first phase, the second phase, and indicia of a third phase provided by the processor.
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Citations
15 Claims
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1. An air traffic collision avoidance system comprising a transmitter that provides a plurality of output signals, the transmitter comprising:
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a processor; a signal generator that provides a generated signal comprising an amplitude modulated radio frequency for transmitting a pulse; a first circuit that provides a first output signal, responsive to and with higher power than the generated signal, the first output signal having a first phase during transmitting of the pulse; and a second circuit that provides a second output signal, responsive to and with higher power than the generated signal, the second output signal having a second phase during transmitting of the pulse, the second phase controlled by the second circuit in accordance with the first phase, the second phase, and indicia of a third phase provided by the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method performed by an air traffic collision avoidance system comprising a transmitter for transmitting in a Mode S format, the method comprising:
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providing an output signal for a first period of time according to a portion of the Mode S format; during a second period of time included in the first period of time, detecting a first phase of the output signal; and adjusting a circuit of the transmitter that provided the output signal, adjusting in accordance with the detected first phase to subsequently provide the output signal with a second phase different from the first phase. - View Dependent Claims (13)
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14. A method performed by an air traffic collision avoidance system comprising a transmitter for transmitting in a Mode S format, the method comprising:
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providing a plurality of output signals for a first period of time according to a portion of the Mode S format; during a second period of time included in the first period of time, detecting a respective first phase of each output signal of the plurality; and adjusting a circuit of the transmitter that provided a particular output signal of the plurality, adjusting in accordance with the detected first phase of each of two output signals of the plurality to subsequently provide the particular output signal with a second respective phase different from the first respective phase. - View Dependent Claims (15)
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Specification