摘要:
A selectable function is provided that permits the impedance of an output driver or an addressable memory device to be configured without adding extra signal connections. The output driver impedance control function of the invention is achieved through the use of the data bus of a memory array for control. The data lines thus serve two purposes one for normal use and the other for control of the impedance. In the invention, the output impedance of each DRAM in a subassembly array that drives a common data bus is individually separately adjusted.
摘要:
Digital latency shift communication problems from a driver chip to a receiver chip are overcome by scheduling a data output latency, a data input latency, a data output command, and/or a data output command, such that data outputted by the driver chip is received by the receiver chip at the correct time. A digital shift detection circuit detects the offset of the actual latencies from predetermined latencies. The offset of the latency is fed back to the scheduling circuit to override the predetermined latencies and/or command inputs that control the chip. The offset can be directly back-fed to the chip driver or chip receiver to compensate for digital shifts. Digital shift detection is achieved by measuring actual latencies with a manufacturing stand-alone tester, or with a built-in tester integral to the system. The digital shift detection predicts the conditions that create a digital shift by way of a mathematical model.
摘要:
An ice rink defines a predetermined shape and includes a source of black and/or white light for illuminating the surface of the rink. In one form, the rink includes a plurality of rectangular synthetic panels and a plurality of adjusting elements for forcing the panels tightly together and for compensating for changes in temperature. The panels also include a plurality of grooves and a plurality of metal splines which are dimensioned to fit into the grooves of adjacent panels to provide a smooth skating surface.
摘要:
The disclosure relates to charge-engineered antibodies and penetration-enhanced targeted proteins and their uses for therapeutic treatment or therapeutics delivery.
摘要:
Systems and methods are disclosed which relate to improving synchronization of clocks between a sender and a receiver communicating via an asynchronous serial interface. In a ring topology, a master device is connected to a plurality of slaves communicating using a bi-frequency encoded bit stream. A host device communicates with the master device using a non-return-to-zero data encoding. Each slave receives data from the master and sends it to the next slave in the ring unaltered unless the master indicates a requirement for a particular data, and transmits placeholder bits with a value of 0 around the ring. A particular slave can “fill-in” the placeholder bits with the information to be sent back to the master by inverting the placeholder bit. Clock synchronization between a receiving device and a transmitting device is improved using a fractional rate multiplier to generate a data sampling clock from a system clock. By adjusting the denominator, the sampling clock can be tuned to match the baud rate of the asynchronous serial data stream received from the transmitting device. Embodiments described include power management, data acquisition (DAQ), etc.
摘要:
Systems and methods for monitoring the performance of a caregiver are disclosed. The systems may be configured to monitor the movement of each caregiver in a network of caregivers. One such system includes a plurality of strips adhered in spaced-apart relation on a mattress pad, upon which a subject is positioned. One or more transmitter is provided coupled to the plurality of strips. A processor in connected to the one or more transmitter. The processor is provided with operating software to record and report caregiver activity or both caregiver activity and subject activity.
摘要:
This relates to methods and devices for treating reversible chronic obstructive pulmonary disease, and more particularly, relates to a device for exchanging energy with airway tissue such as that found in the airway of human lungs. The exchange of energy with this airway tissue in the airways reduces the ability of the air ways to constrict and/or reduces the resistance within the airway to the flow of air through the airway. This also relates to a method for decreasing responsiveness or decreasing resistance to airflow of airways involves the transfer of energy to or from the airway walls to prevent or reduce airway constriction and other symptoms of lung diseases. The treatment reduces the ability of the airway to contract during an acute narrowing of the airways, reduces mucus plugging of the airways, and/or increases the airway diameter. The methods according to the present invention provide a longer duration and/or more effective treatment for lung diseases than currently used drug treatments, and obviate patient compliance issues. This also includes additional steps that reduce the ability of the lung to produce at least one of the symptoms of reversible obstructive pulmonary disease and to reduce the resistance to the flow of air through a lung.
摘要:
An apparatus and method of canceling a flight plan of an aircraft to facilitate release of an IFR airspace to other aircraft and for communicating the location of a downed aircraft during emergencies. A controller receives and analyzes positioning signals transmitted from know locations to determine the location of the aircraft periodically. Upon arrival of the aircraft at its destination, the controller calls the air traffic controllers to cancel the flight plan. In the event of an emergency, the controller calls the air traffic control center to report the emergency and the location of the aircraft with high accuracy to improve search and rescue operations.
摘要:
An antitumor antibiotic designated BMY-41339 is produced by fermentation of certain strains of Actinomadura verrucosospora. BMY-41339 exhibits antimicrobial activity and also inhibits the growth of tumors in experimental animals.
摘要:
A method of separation of one gaseous species from another gaseous species in a gas mixture containing a plurality of gases of different masses. The species are first separated from one another by thermal diffusion using laser radiation to effect such separation and then separated from the mixture electrically or chemically. Apparatus to perform the method is also disclosed.