Abstract: An architecture that enables one to realize a FIR transversal filter with apodized, interlaced bipolar tap coefficients (an). The tap coefficients, an, are varied via the control of the optical powers emitted by an array of WDM laser sources. Also, a filter architecture where tap coefficients can be agilely reconfigured in both polarity and magnitude. One chirped fiber-grating may be used to implement a series of wavelength-dependent tap-weights. The filter designs can be utilized to eliminate the low-pass response centered at DC, allowing one to place the center frequency (fc)1 of the first passband at a targeted intermediate frequency (IF).

Abstract: A palmar surface may allow for ease of gripping an ultrasound transducer probe. By facing the palmar surface so that the users hand is directed downwards, towards the patient's skin, during use, less wrist flexing may result. To allow for gripping, the cable extends from the transducer at a location other than the top of the transducer. Elastomer or other soft materials increase grip.

Abstract: A brewer made in accordance with the present invention has a control center, including a selector switch for strength selection; a brew button to initiate brewing and dispensing of the beverage, and an on/off or power button. The selector switch and buttons are preferably mounted on a common tray that is then interposed between first and second housing portions during assembly of the brewer. There is also an illumination device, such a high-intensity, tri-color light-emitting diode (LED), which emits red light, green light, blue light, or a combination thereof to provide visual indication of an operational status of the brewer.

Abstract: An architecture that enables one to realize a FIR transversal filter with apodized, interlaced bipolar tap coefficients (an). The tap coefficients, an, are varied via the control of the optical powers emitted by an array of WDM laser sources. Also, a filter architecture where tap coefficients can be agilely reconfigured in both polarity and magnitude. One chirped fiber-grating may be used to implement a series of wavelength-dependent tap-weights. The filter designs can be utilized to eliminate the low-pass response centered at DC, allowing one to place the center frequency (fc)1 of the first passband at a targeted intermediate frequency (IF).

Abstract: A system and a method of manipulating system parameters directly from displayed graphics utilize universal controls whose functions can vary depending on the current position of a cursor on a display device of the system. The system may be an imaging system based on ultrasound, magnetic resonance, computed tomography technology, or other modalities. The universal controls allow the number of controls included in the control panel of the system to be significantly reduced, since each universal control can perform functions of multiple hard controls. The universal controls may be pushbutton rotatable dials or rotatable toggles. In operation, when the cursor is positioned over one of the cursor-sensitive target areas, a control assignor of the system designates functions that correspond to that cursor-sensitive target area to the universal controls. The system also includes a display controller that controls the operations of displayed cursor-sensitive graphic elements.

Abstract: An apparatus and method for frequency translation of true time delay signals in a phased array radar system is provided. A local oscillator signal is true time delayed or modulo 2.pi. phase shifted and then mixed with a true time delay beamsteering signal from a true time delay circuit to produce a frequency translated transmit signal which is supplied to an antenna element. A receive signal received by an antenna element is mixed with a true time delayed or modulo 2.pi. phase shifted local oscillator signal to provide a frequency translated receive signal. The frequency translated receive signal can then be passed through a true time delay circuit and other subsequent processing circuitry. The frequency translation permits higher frequency transmit and receive signals to be used with lower frequency true time delay devices.

Abstract: Optoelectronic switching apparatus employing optoelectronic switching devices interconnected by optical media having different delay lengths and an multiport optical coupler. The optoelectronic switching apparatus provides for a multibit true-time-delay beamsteerer for beamsteering phased array antennas. The present invention combines two types of optoelectronic devices, lasers and photodiode switches, using an interconnected passive optical network comprising the optical fibers and the optical coupler. The switches, and input and output signal networks coupled to the respective switches, are controlled using a control signal generator. Using this scheme, any input can be independently selected and a signal can be routed to any output. Furthermore, the product of the total number of different interconnect paths (N.times.M) is provided which provides a greater number of delay lengths than is provided by using only one type of switch (i.e. laser (N) or photodiode (M)) alone.