Abstract: A method of controlling a chemical reaction is disclosed. The method may include feeding a solution at a first flow rate into a reactor and detecting a sound in the reactor using a sound sensor that is adjacent to the reactor. The sound sensor may convert the sound into a sound signal. After the sound signal is acquired, it is compared to a stored sound signal or a stored sound threshold to detect a reaction event. The method may include adjusting the flow rate of solutions into the reactor in response to the reaction event.

Abstract: A method of controlling a chemical reaction is disclosed. The method may include feeding a solution at a first flow rate into a reactor and detecting a sound in the reactor using a sound sensor that is adjacent to the reactor. The sound sensor may convert the sound into a sound signal. After the sound signal is acquired, it is compared to a stored sound signal or a stored sound threshold to detect a reaction event. The method may include adjusting the flow rate of solutions into the reactor in response to the reaction event.

Abstract: A pressure-actuated floor mat, mattress or chair pressure sensor is enclosed within a flexible protective envelope that is provided with active electronic devices that can monitor the state of the sensor but which can also wirelessly transmit signals carrying information from the sensor-detecting electronics. Radio signals carrying information about the sensor are transduced or emitted from a small antenna within, or attached to the one of the envelopes surfaces. A receiver receives the signals emitted from the antenna and relays the information to a remote patient monitoring system is realized by the electronics and sensor within a disposable protective envelope.

Abstract: A pressure-actuated mattress or chair pressure sensor enclosed within a flexible protective envelope is provided with active electronic devices that can monitor the state of the sensor. The electronic devices are mounted on, within or alongside the pressure sensor and can include a transmitter device. A remote patient monitoring system is realized by the electronics and sensor within a disposable protective envelope.

Abstract: A patient monitoring system uses a mattress or chair sensor enclosed within a flexible protective envelope that allows radio frequency signals to pass through the envelope. Information such as person's presence or absence, humidity or liquids inside the envelope, are wirelessly transmitted to a nearby receiver, which forwards the information via a network to a remotely located monitor.

Abstract: A pressure-actuated floor mat, mattress or chair pressure sensor is enclosed within a flexible protective envelope that is provided with active electronic devices that can monitor the state of the sensor but which can also wirelessly transmit signals carrying information from the sensor-detecting electronics. Radio signals carrying information about the sensor are transduced or emitted from a small antenna within, or attached to the one of the envelopes surfaces. A receiver receives the signals emitted from the antenna and relays the information to a remote patient monitoring system is realized by the electronics and sensor within a disposable protective envelope.

Abstract: An optical interface is provided to supplement an electrical interface between a main circuit board (102) and a mezzanine circuit board (104) that is mounted above the main circuit board. The mezzanine circuit board is mounted generally parallel to, and above the main circuit board. In between the two circuit boards is provided an optical interface. A light source (200) is mounted to one of the circuit boards and a complementary photo detector (202) is mounted on the other circuit board in a manner such that the photo detector receives light from the light source. Two optical interfaces are preferred for two-way communication between the main circuit board and the mezzanine circuit board. The light source is preferably a laser and the photo detector is preferably a photo diode. The optical interface provides a high speed interconnect to increase conductivity and functionality between the main circuit board and the mezzanine circuit board.

Abstract: An electronic system for networking, switching or computing includes a backplane-based interconnection system (100). The system includes a backplane (102) with a plurality of traces coupled to slots for receiving circuit packs (104a-d). The backplane traces are configured to form point-to-point connections (106a-f) from one slot of the backplane to every other slot of the backplane. A hub circuit (110) is provided on each circuit pack for coupling the circuit pack to the point-to-point connections in the backplane. Circuit packs communicate via direct connections over the point-to-point connections or indirectly by sending traffic through point-to-point connections and hub circuits.

Abstract: The scanning free space optical broadband access network uses LASERs to carry high-speed data streams between a central location and a number of subscribers served from that location. High-speed digital data modulates the LASERs in both directions, allowing a virtual MAN to be created. A few dozen subscribers share a single virtual pipe with several hundred Mbps band-width available. Beam scanning techniques at a central hub permit a single LASER and optical assembly to serve many customers.

Abstract: An enclosure includes spaced apart sidewalls and a bottom wall, rear wall, and top cover each forming an RF tight seal with the sidewalls, and defining separate chambers for a plurality of circuit packs. The edges of the sidewalls, bottom wall and top cover at the entrance to each chamber are configured to form an RF tight seal with the faceplate of an installed circuit pack. A fluid for cooling the circuit pack enters each chamber and a baffle allows the fluid to escape while being resistant to the transmission of RF energy. Surfaces of the sidewalls that are interior to each chamber are able to disrupt and absorb a substantial portion of the RF energy radiating from the enclosed circuit pack and thereby minimize the level of RF energy within the chamber.

Abstract: The present invention provides a mobile electronic device and a method for providing a courtesy alerting feature. The mobile electronic device, such as a cellular phone, a pager, a PDA, or the like, receives a call request. If the user of the mobile electronic device wants to answer the call request but cannot do so immediately, the user can activate the courtesy alerting feature using an input device on the mobile device. The user presses a key or sequence of keys on the mobile device. A message is sent to the calling party alerting them that the user of the mobile device cannot currently answer the call but is moving to a place where the call request can be taken. Once in a location where the call can be taken, the user presses an answer button on the mobile device and the call is completed.

Abstract: The present invention provide a method for automatically selecting the alert type of a mobile electronic device, and a mobile electronic device embodying such technology. The location of the mobile electronic device is determined either by a processor in the mobile electronic device or by the network using triangulation techniques. Based upon the location information, the mobile device changes the alert type. The alert type can be changed to a silent mode, such as vibrate, when the mobile device is located in an area in which an audible alert would be disturbing. The alert type can also be changed to a loud audible alert when the location is a noisy one, such as a factory. The alert type is changed back to its initial value upon leaving the predetermined location.

Abstract: An optical interface is provided to supplement an electrical interface between a main circuit board (102) and a mezzanine circuit board (104) that is mounted above the main circuit board. The mezzanine circuit board is mounted generally parallel to, and above the main circuit board. In between the two circuit boards is provided an optical interface. A light source (200) is mounted to one of the circuit boards and a complementary photo detector (202) is mounted on the other circuit board in a manner such that the photo detector receives light from the light source. Two optical interfaces are preferred for two-way communication between the main circuit board and the mezzanine circuit board. The light source is preferably a laser and the photo detector is preferably a photo diode. The optical interface provides a high speed interconnect to increase conductivity and functionality between the main circuit board and the mezzanine circuit board.