초록 ▼

A method of a Traffic Alert and Collision Avoidance System (TCAS), includes the step of utilizing an MID Subfield for a TCAS Broadcast Interrogation Message that is different than a Mode S address assigned to the own aircraft, the aircraft on which a TCAS is installed. A Traffic Alert and Collision

A method of a Traffic Alert and Collision Avoidance System (TCAS), includes the step of utilizing an MID Subfield for a TCAS Broadcast Interrogation Message that is different than a Mode S address assigned to the own aircraft, the aircraft on which a TCAS is installed. A Traffic Alert and Collision Avoidance System includes a TCAS processing unit that performs a method including the step of utilizing an MID Subfield for a TCAS Broadcast Interrogation Message that is different than a Mode S address assigned to the own aircraft.

대표청구항 ▼

A method of a Traffic Alert and Collision Avoidance System (TCAS), includes the step of utilizing an MID Subfield for a TCAS Broadcast Interrogation Message that is different than a Mode S address assigned to the own aircraft, the aircraft on which a TCAS is installed. A Traffic Alert and Collision

A method of a Traffic Alert and Collision Avoidance System (TCAS), includes the step of utilizing an MID Subfield for a TCAS Broadcast Interrogation Message that is different than a Mode S address assigned to the own aircraft, the aircraft on which a TCAS is installed. A Traffic Alert and Collision Avoidance System includes a TCAS processing unit that performs a method including the step of utilizing an MID Subfield for a TCAS Broadcast Interrogation Message that is different than a Mode S address assigned to the own aircraft. ducer assembly operating in a mode which is the k31mode, the first signals being confined to a first frequency range; projecting the first ultrasound signals into a body; and detecting second ultrasound signals corresponding to reflected portions of the first signals, the second signals being confined to a second frequency range different from the first frequency range. 10. The method according to claim 9, wherein emitting first ultrasound signals further comprises emitting a signal corresponding to a first fundamental resonant frequency of the transducer assembly. 11. The method according to claim 9, wherein detecting second ultrasound signals further comprises detecting a signal corresponding to a third harmonic of the fundamental resonant frequency of the transducer assembly. 12. The method according to claim 9, wherein detecting second ultrasound signals further comprises detecting a signal corresponding to a second harmonic of the fundamental resonant frequency of the transducer assembly. 13. The method of claim 9, wherein emitting first ultrasound signals further comprises emitting signals that are proximate to an upper band frequency of the first frequency range, and further wherein detecting second ultrasound signals further comprises detecting signals that are proximate to a lower band frequency of the second frequency range. 14. An ultrasound imaging system, comprising: a transducer assembly including at least one transducer element formed from a piezoelectric material extending in a first emitting direction and in a second direction that is perpendicular to the first direction and having electrodes positioned on opposing sides of the transducer element that intersect the second direction, the piezoelectric material being poled in the second direction; and an ultrasound processor operatively coupled to the electrodes, the processor transmitting first signals to the transducer assembly for generating ultrasonic waves, and receiving second signals from the transducer assembly corresponding to reflected portions of the ultrasonic waves, the second signals being harmonically related to the first signals. 15. The imaging system according to claim 14, wherein the first signals further include a fundamental resonant frequency of the transducer assembly, and the second signals include a frequency which is a second harmonic of the fundamental resonant frequency of the transducer assembly. 16. The imaging system according to claim 14, wherein the first signals further include a fundamental resonant frequency of the transducer assembly, and the second signals include a frequency which is a third harmonic of the fundamental resonant frequency of the transducer assembly. 17. The imaging system according to claim 14, wherein the first signals are confined to a first frequency band having an upper band frequency, and the second signals are confined to a second frequency band having a lower band frequency, and the processor is configured to transmit signals proximate to the upper band frequency, and to receive signals proximate to the lower band frequency, wherein the received signals include a frequency corresponding to the second harmonic frequency of the transducer assembly. 18. The imaging system according to claim 14, wherein the first signals are confined to a first frequency band, and the second signals are confined to a second frequency band, the first frequency band having a first center frequency and the second frequency band having a second center frequency, wherein the first center frequency is a fundamental resonant frequency of the transducer assembly and the processor is configured to transmit signals at about the fundamental resonant frequency, and the second center frequency is a third harmonic resonant frequency of the transducer assembly, and the processor is configured to receive signals at about the third harmonic resonant frequency. 19. The imaging system according to claim 14, further comp rising a piezoelectric layer having a first dimension extending in the first direction and a second dimension extending in the second direction which exhibit a ratio therebetween, and wherein the ratio of the first dimension to the second dimension is at least two. 20. The imaging system according to claim 14, further comprising a piezoelectric layer having a first dimension extending in the first direction and a second dimension extending in the second direction which exhibit a ratio therebetween, and wherein the ratio of the first dimension to the second dimension is approximately about three.