Abstract: A wafer probe test system having a probe card with a probe head, a rotary magnet, a magnetic sensor positioned to sense the magnetic field of the rotary magnet and a controller coupled to the probe card, where the probe head has probe needles to engage features of test sites of a wafer in a wafer plane of orthogonal first and second directions, and the rotary magnet is rotatable around an axis of a third direction to provide a magnetic field to the wafer, in which the controller includes a model of magnetic flux density in the first, second and third directions at the respective test sites of the wafer as a function of a rotational angle of the rotary magnet, a probe needle height along the third direction and a measured magnetic flux density of the magnetic sensor.

Abstract: A wafer probe test system having a probe card with a probe head, a rotary magnet, a magnetic sensor positioned to sense the magnetic field of the rotary magnet and a controller coupled to the probe card, where the probe head has probe needles to engage features of test sites of a wafer in a wafer plane of orthogonal first and second directions, and the rotary magnet is rotatable around an axis of a third direction to provide a magnetic field to the wafer, in which the controller includes a model of magnetic flux density in the first, second and third directions at the respective test sites of the wafer as a function of a rotational angle of the rotary magnet, a probe needle height along the third direction and a measured magnetic flux density of the magnetic sensor.

Abstract: A method and system for videoconferencing over twisted pair wiring. The transmissions for the videoconference being of a broadcast quality. Input devices at each videoconference location receive a broadcast quality transmission and transmit the transmission to a modulator/demodulator which sends the transmission via twisted pair wiring to a video router where the transmission is routed to its proper destination. Output devices at each videoconference location receive a broadcast quality transmission over twisted pair wiring from a modulator demodulator which receives the transmission from the video audio router.

Abstract: A method and system for videoconferencing over twisted pair wiring. The transmissions for the videoconference being of a broadcast quality. Input devices at each videoconference location receive a broadcast quality transmission and transmit the transmission to a modulator/demodulator which sends the transmission via twisted pair wiring to a video router where the transmission is routed to its proper destination. Output devices at each videoconference location receive a broadcast quality transmission over twisted pair wiring from a modulator demodulator which receives the transmission from the video audio router.

Abstract: A method of distributing an event to a viewer including capturing the event on a capturing device as a broadcast transmission that has at least a 1,000 pixel by 1,000 pixel resolution, then transmitting the broadcast transmission to a distributing device and then distributing the broadcast transmission from the distributing device to the viewer over a standard twisted pair wire at the at least 1000 pixel by 1000 pixel resolution.

Abstract: A system and system of synchronizing a delivery of a first content to a plurality of users including providing a second content to a compression device to provide a time window in the second content, and delivering the first content to the plurality of users when the first content is synchronized to simultaneously deliver the first content to each of the plurality of users.