Abstract: Remote monitoring system for alerting a user of an alarm or a return-to-normal situation. The remote monitoring system has a wireless transceiver for receiving and transmitting text messages via a wireless network to a particular wireless device, such as a cellular or satellite telephone. Coupled to the transceiver is at least one event sensor that monitors a particular parameter, such as water level, battery charge level, temperature, etc. The transceiver is programmed to send an alert text message to a wireless communication device should the event sensor send a signal that triggers the remote monitoring system. Once triggered, the remote monitoring system continues to send messages to the wireless communication device, until it receives confirmation that the message was received. Should the event sensor send a signal that indicates a return to a normal condition, the remote monitoring system sends a return-to-normal message.

Abstract: In order to discourage compression of video and other visual image signal data that accompanies unauthorized reproduction, distribution and storage of such data, the signal data is modified in a manner to be essentially imperceptible but which, when compressed and then decompressed, causes the signal quality to be unacceptable. In one approach, the visual signal is modified directly. In another approach, the signal is first transformed into the same domain where a compression-decompression algorithm encodes and decodes the data, and then the transformed signal is modified so that the quality of the visual signal when decompressed and displayed is unacceptably degraded.

Abstract: An optical 3D digitizer with an enlarged non-ambiguity zone, comprising a structured light projector for projecting a fringe pattern over a target area, the fringe pattern having a shiftable position over the target area is disclosed. First and second cameras having overlapping measurement fields are directed toward the target area and positioned with respect to the projector to define distinct triangulation planes therewith. The second camera has a larger non-ambiguity depth than the first camera.

Abstract: An optical 3D digitizer with an enlarged non-ambiguity zone, comprising a structured light projector for projecting a fringe pattern over a target area, the fringe pattern having a shiftable position over the target area is disclosed. First and second cameras having overlapping measurement fields are directed toward the target area and positioned with respect to the projector to define distinct triangulation planes therewith. The second camera has a larger non-ambiguity depth than the first camera.

Abstract: In order to discourage compression of video and other visual image signal data that accompanies unauthorized reproduction, distribution and storage of such data, the signal data is modified in a manner to be essentially imperceptible but which, when compressed and then decompressed, causes the signal quality to be unacceptable. In one approach, the visual signal is modified directly. In another approach, the signal is first transformed into the same domain where a compression-decompression algorithm encodes and decodes the data, and then the transformed signal is modified so that the quality of the visual signal when decompressed and displayed is unacceptably degraded.