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729results about "Simultaneous indication of multiple variables" patented technology

Aircraft flat panel display system with improved information availability

An improved aircraft instrument flight display system employs primary and secondary video graphics processors for generating graphics video imaging information. Both the primary and secondary video graphics processors have associated potential failure threads and are preferably chosen to have different potential failure threads so that the same failure problem will not have a tendency to occur in both of the video graphics processors. The primary video graphics processor generates a graphical display of the aircraft flight information for use by the flight crew in operating the aircraft. The system also includes a video switch for switching between the primary and secondary video graphics processors under control of the integrity checking processor based on the integrity of the graphical display provided by the primary video graphics processor. The switch switches its output to the secondary video graphics processor when the integrity checking processor detects a mismatch condition for the primary video graphics processor in order to maintain critical display data availability when a mismatch has been detected with respect to the primary video graphics processor. The video imaging information provided by the secondary video graphics processor can be a subset of the video imaging information provided by the primary video graphics processor or it can be the same. The integrity checking function may be accomplished by storing a complex checksum, such as a CRC, for a predefined image of each graphics image capable of being rendered as a baseline, and calculating an image checksum for the rendered image and comparing it against the stored complex checksum corresponding to the image for determining any deviations from the baseline.
Owner:INNOVATIVE SOLUTIONS & SUPPORT

Portable sensor

A vapor sensing device that is sufficiently small and lightweight to be handheld, and also modular so as to allow the device to be conveniently adapted for use in sensing the presence and concentration of a wide variety of specified vapors. The device provides these benefits using a sensor module that incorporates a sample chamber and a plurality of sensors located on a chip releasably carried within or adjacent to the sample chamber. Optionally, the sensor module can be configured to be releasably plugged into a receptacle formed in the device. Vapors are directed to pass through the sample chamber, whereupon the sensors provide a distinct combination of electrical signals in response to each. The sensors of the sensor module can take the form of chemically sensitive resistors having resistances that vary according to the identity and concentration of an adjacent vapor. These chemically sensitive resistors can each be connected in series with a reference resistor, between a reference voltage and ground, such that an analog signal is established for each chemically sensitive resistor. The resulting analog signals are supplied to an analog-to-digital converter, to produce corresponding digital signals. These digital signals are appropriately analyzed for vapor identification.
Owner:SMITHS DETECTION PASADENA INC

A multi-function car digital instrument system

The invention relates to a multifunction automobile digital instrument system which comprises a liquid crystal screen and an embedded singlechip fixed on the back of the liquid crystal screen; sensor data is still read through a bus interface of the prior analogue instrument board, without changing the installation structure of the prior vehicle instrument board. The system is provided with all functions of the prior analogue instruments of an automobile, besides, the system is also provided with functions such as monitoring vehicle running state and fault diagnosis, monitoring driving state of drivers, monitoring vehicle discharge state, vehicle traveling recorder, video reversing radar, GPS navigation, GPRS wireless data transmission and so on. The multifunction automobile digital instrument system of the invention can greatly expand functions of the prior instrument board and make the prior instrument board to be the information processing center of modern automobiles. The application of the system contributes to improving the service life of vehicles, reducing accidental faults, improving the safety of running and driving of vehicles, reducing the cost of use and management of vehicles and realizing informatization of traffic guidance.
Owner:BEIJING UNIV OF TECH
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