Abstract: The present invention relates to a probe for testing of integrated circuits or other microelectronic devices.

Abstract: A direct current and a modulation signal are simultaneously applied to contact pads on a device under test, such as a laser diode, with a probe that reduces signal distortion and power dissipation by transmitting a modulated signal through an impedance matching resistor and transmitting of a direct current over a second signal path that avoids the impedance matching resistor.

Abstract: A probe measurement system for measuring the electrical characteristics of integrated circuits or other microelectronic devices at high frequencies.

Abstract: A probe measurement system for measuring the electrical characteristics of integrated circuits or other microelectronic devices at high frequencies.

Abstract: A apparatus and apparatus for compensating for video insertion loss due to transmission over long twisted pair cable lines is presented. Transmission of video over twisted pair cable is advantageous because of its superior cost advantage over coaxial cable. However, twisted pair cables have significant loss characteristics at the higher frequencies (i.e., broadband) compared to coaxial cables. At a transmitter station, the video signal is amplified in the high frequency region for possible skin effect losses thereby brute forcing the high frequency components to the receiving station. At the receiver station, the video signal is further compensated for diffusion line and skin effect losses. The total skin effect compensation applied in both the transmitter and receiver stations is such that the square root of frequency characteristics of skin effect losses is compensated for.

Abstract: A direct current and a modulation signal are simultaneously applied to contact pads on a device under test, such as a laser diode, with a probe that reduces signal distortion and power dissipation by transmitting a modulated signal through an impedance matching resistor and transmitting of a direct current over a second signal path that avoids the impedance matching resistor.

Abstract: A probe measurement system for measuring the electrical characteristics of integrated circuits or other microelectronic devices at high frequencies.

Abstract: A direct current and a modulation signal are simultaneously applied to contact pads on a device under test, such as a laser diode. A probe and method of probing reduces signal distortion and power dissipation by transmitting a modulated signal to the device-under-test through an impedance matching resistor and transmitting of a direct current to the device-under-test over a second signal path that avoids the impedance matching resistor.

Abstract: A probe measurement system for measuring the electrical characteristics of integrated circuits or other microelectronic devices at high frequencies. The probe measurement system preferably includes a probe having a conductive path between the first and second sides of a substrate and a probe contact electrically connected to the conductive path.

Abstract: A direct current and a modulation signal are simultaneously applied to contact pads on a device under test, such as a laser diode. A probe and method of probing reduces signal distortion and power dissipation by transmitting a modulated signal to the device-under-test through an impedance matching resistor and transmitting of a direct current to the device-under-test over a second signal path that avoids the impedance matching resistor.

Abstract: A apparatus and apparatus for compensating for video insertion loss due to transmission over long twisted pair cable lines is presented. Transmission of video over twisted pair cable is advantageous because of its superior cost advantage over coaxial cable. However, twisted pair cables have significant loss characteristics at the higher frequencies (i.e., broadband) compared to coaxial cables. At a transmitter station, the video signal is amplified in the high frequency region for possible skin effect losses thereby brute forcing the high frequency components to the receiving station. At the receiver station, the video signal is further compensated for diffusion line and skin effect losses. The total skin effect compensation applied in both the transmitter and receiver stations is such that the square root of frequency characteristics of skin effect losses is compensated for.

Abstract: A device is disclosed. The device includes a virtual private network (VPN) to automatically retrieve user VPN credentials and to automatically establish a VPN using the credentials whenever a network connection is established to a network access point.

Abstract: The stunt device is positioned within the travel path of a toy vehicle and is supported by a support frame. A flip device is pivotally coupled to the frame and positioned to receive a toy vehicle from a portion of the trackset. A spring is coupled to the flip device and is restrained by the trigger. The trigger is positioned within the toy vehicle travel path upon the vehicle entrance to the stunt device. As the toy vehicle impacts the trigger, the spring is released causing the flip device to pivot rapidly thrusting the toy vehicle into the air in a somersault projection.

Abstract: A spiral stunt device includes a supporting frame having an upper cross member which in turn defines a helical thread. A traveler engages the helical thread of the upper support and further supports a pendulum segment. The pendulum segment extends downwardly and terminates in a toy vehicle receiver or “caddy”. A first track segment is directed toward one side of the spiral stunt device which a second track segment is directed toward an offset portion of the stunt device. As a toy vehicle enters the stunt device with substantial energy, it is captivated by the toy vehicle receiver. As the energy of the captivated toy vehicle is transferred to the receiver and its pendulum support, the receiver together with the toy vehicle and the pendulum support are caused to rotate about the horizontal member advancing the traveler on the helical threads. The resulting lateral movement of the traveler upon the helical thread aligns the toy vehicle receiver with the offset track segment.

Abstract: A clamping element for a toy vehicle trackset support structure includes a housing defining a passage therethrough and a socket. The passage receives an elongated support rod while the socket receives a ball which further supports a trackway segment. A lever actuated lock secures the rod and ball within the housing.

Abstract: A toy vehicle trackset including a closed trackway, a toy vehicle and a booster for accelerating the toy vehicle traveling the trackway. Within the trackway, a portion of the toy vehicle travel path includes a flexible multi-apertured panel held by a support structure.

Abstract: A toy vehicle trackset includes a trackway and a plurality of pneumatically actuated stunt devices within the travel path of the trackway. A source of compressed air is applied to one or more of the stunt devices to act upon a toy vehicle traveling the travel path.

Abstract: A. track structure utilizes a somewhat flexible track frame having a roadway portion for supporting a rolling toy vehicle. The frame further includes a plurality of outwardly extending opposed pairs of platforms on each side of the roadway. A plurality of guide post supports are secured to the platforms and define notches for receiving a snap-fitted guide rail. A pair of generally cylindrical elongated somewhat flexible and resilient guide rails are snap-fitted to the guide rails supports on each side of the frame to form trackway walls. The cooperation of the guide rails and their supports facilitates the shape retention of the track segments.

Abstract: A toy vehicle launcher and supporting clamp are used in providing a gravity driven toy vehicle trackset. The clamp utilizes a ratcheting attachment member which facilitates the rapid sizing or adjustment for size for attachment to a table edge or the like. The launcher and clamp further provides a toy vehicle launcher having a trigger release for gravity driven launch of a toy vehicle down a coupled track segment. The angle of the toy vehicle launcher is adjustable to facilitate changes in launch angle and thereby changes in the amount of energy imparted to the toy vehicle.

Abstract: A scaffold support system for toy vehicle tracksets utilizes a plurality of base members which in turn support a plurality of generally cylindrical rod elements. The rod elements are elongated and generally circular in cross-section. A plurality of joint members are utilized in securing combinations of the rod members together to form a scaffold structure. In turn, a further plurality of joint members are utilized in securing the track segments to the various rods found in the scaffold structure. The joints are movable and rotatable upon the supporting rods to provide substantial variation of track segment positioning and contour within the trackset. For the most part, each joint utilized in securing the track segments and the combinations of scaffold supporting rods within the trackset is capable of securely locking in a selected position.