摘要:
A display system is disclosed for depicting a moving image of a graphic representation of a sequence of, for example, letters, words, symbols or artwork. The system comprises a display area defined by an array of light emitting diodes (LED's) which form a matrix having a series of rows and columns. The LED's are arranged in rows parallel to the intended direction of movement of an image and the columns are arranged orthogonal to the intended direction of movement. The LED's are further arranged in first and second groups in an interlacing fashion, wherein successive LED's of the first and second groups are spaced apart by one or more columns which do not contain LED's.A controller is further included for generating a plurality of electrical signals in sequential groups, each such group of signals representing encoded data of a sample portion of the graphic to be represented by one column of the matrix at a prescribed instant, and successive groups of the sets of data providing further encoded data of successive sample portions of the graphic to be represented by a column and successive prescribed instants. The system is capable of displaying high-definition graphics with only a fraction of the picture elements necessary in prior art systems, and yet which produces an image that does not tend to break up into momentary fragments, jitter, or wobble.
摘要:
A device for aiding in the preparation of fowl (10) on a rotisserie having a spit (11), the spit (11) extending longitudinally through the fowl (10) between the wings (12) and between the legs (13) thereof. A leg clip (15) fixedly positions the legs (13) of the fowl (10) relative to the spit (11). The wings (12) are held in place by a truss member (24) which is held by a pin (22) extending through the body of the fowl (10).
摘要:
A graphic display system in which the lights of an array of lights arranged in dot matrix form are illuminated to produce the illusion of a moving sign displaying letters, words, numbers etc. in which use is made of the phenomenon of beta apparent motion to enable a moving image of a high resolution to be produced with the use of a small proportion for example 1/8, of the number of individual lights that would normally be considered necessary. The lights are preferably arranged in columns, lights in consecutive columns being illuminated in turn in the direction of apparent movement of the image.
摘要:
An RFID tag includes a transceiver for communicating with a tag reader; memory for storing a deactivation string, an encrypted deactivation string created externally to the tag by encrypting the deactivation string, and a trial string created externally to the tag by decrypting the encrypted deactivation; and logic for comparing the deactivation string and the trial string to determine whether they are the same, and, if they are the same, configuring the tag to permit deactivation. A method executed by the RFID tag includes comparing the trial string with the deactivation string to determine whether they are the same, and if they are the same, configuring the tag to permit deactivation. The trial string may be created externally to the tag by decrypting, using a first key, an encrypted deactivation string that is created externally to the tag by encrypting the deactivation string using a second key.
摘要:
Catheter devices and methods are provided for enhancing fluid flow through a vascular site occupied by a calcified lesion. The catheter devices of the subject invention at least include, at their distal end, a proton generating means, and in many embodiments also include a flushing means. In using the subject devices, the distal end of the catheter is placed proximal to the vascular occlusion and protons are generated, e.g., via proton generation from water, in a manner sufficient to reduce the pH of the vascular site in the region proximal to the occlusion. The subphysiologic pH is maintained for a period of time sufficient for fluid flow through the vascular site to be enhanced. Also provided are kits comprising the subject catheter devices for use in the subject methods.
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:
The present invention provides improved methods for establishing vascular access to a patient's body lumen or other target location, particularly blood vessels, for performing extracorporeal treatments, such as hemodialysis, hemofiltration, hemodiafiltration, plasmapheresis, apheresis, and the like, on circulating blood. In particular, the present invention provides improved methods which may enhance extracorporeal blood flow rates, reduce instances of fibrin sheath or thrombosis formation, and minimize recirculation effects. Methods for recirculating blood to a patient include placing a draw catheter so that a distal tip thereof is positioned in a right atrium of the patient's heart. A return catheter is placed so that a distal tip thereof is positioned in a superior vena cava. Extracorporeal blood flow from the draw catheter to the return catheter may then be established.
摘要:
Methods and compositions are provided for preparing storage stable partially neutralized acid compositions. The partially neutralized acid compositions are amenable to prolonged periods of storage. Following storage, the acids can be neutralized with a calcium neutralizing source and combined with a lubricant to form a rapidly setting calcium phosphate mineral suitable for a variety of purposes, e.g. bone replacement.
摘要:
The invention involves a novel method of increasing the efficiency of a thermal engine. Heat is generated by a non-linear chemical reaction of reactants, said heat being transferred to a thermal engine such as Rankine cycle power plant. The novel method includes externally perturbing one or more of the thermodynamic variables of said non-linear chemical reaction.
摘要:
In a television or other picture transmission the picture is scanned in a random or pseudo-random manner enabling picture analysis and transmission within band widths considerably smaller than with conventional sequential lexicographic scans with elimination of flicker. The random scan is obtained in the X and Y directions by employing two shift registers connected serially with random bit numbers entered into the first register. The coordinates of the scanning spot are determined by the instantaneous content in the shift registers. Similar serially connected shift registers are used at the receiver, and the random bits, which are transmitted along with the video signal, are applied to the first of them. After a short period the receiver will be in synchrony with the transmitter no matter what the original content of the registers at the receiver. Conversion to a random or pseudo-random scan may be used as a step in changing from one television standard to another.