253results about How to "Improve reference" patented technology

Some embodiments provide an interactive viewer for an input device interface. Specifically, some embodiments provide a Keyboard Enhanced Interface (KEI) system that includes a KEI viewer. The KEI viewer includes multiple graphical keys that correspond to keys of a key based input device. The KEI viewer also includes multiple symbols that identify different output actions and logic for presenting a set of symbols over a set of graphical keys to identify a set of keys of the key based input device that are usable to directly invoke a set of output actions based on an active operational mode of the KEI system. A symbol identifies a particular output action that is directly invocable with a press of a key of the key based input device that corresponds to a graphical key over which said symbol is presented.

Systems and methods of use for continuous analyte measurement of a host's vascular system are provided. In some embodiments, a continuous glucose measurement system includes an electrochemical sensor incorporating a silver/silver chloride reference electrode, wherein a capacity of the reference electrode is controlled.

A pipelined analog-to-digital converter (ADC) (30) with improved precision is disclosed. The pipelined ADC (30) includes a sequence of stages (20), each of which includes a sample-and-hold circuit (22), an analog-to-digital converter (23), and the functions of a digital-to-analog converter (DAC) (25), an adder (24), and a gain stage (27) at which a residue signal (RES) is generated for application to the next stage (20) in the sequence. A multiplying DAC (28) performs the functions of the DAC (25), adder (24), and gain stage (27) in the stage (20), and is based on an operational amplifier (29). Sample capacitors (C10, C20) and reference capacitors (C12₂, C22₂) receive the analog input from the sample-and-hold circuit (22) in a sample phase; parallel capacitors (C12₁, C22₁) are provided to maintain constant circuit gain. Extended reference voltages (V_REFPX, V_REFNX) at levels that exceed the output range (V₀+, V₀−) of the operational amplifier (29) are applied to the reference capacitors, in response to the digital output of the analog-to-digital converter (23) in its stage (20). The reference capacitors (C12, C22) are scaled according to the extent to which the extended reference voltages (V_REFPX, V_REFNX) exceed the op amp output levels (V₀+, V₀−). The effects of noise on the reference voltages (V_REFPX, V_REFNX) on the residue signal (RES) are thus greatly reduced.

To generate navigation directions for a driver of a vehicle, a route for guiding the driver to a destination is obtained, visual landmarks corresponding to prominent physical objects disposed along the route are retrieved, and real-time imagery is collected at the vehicle approximately from a vantage point of the driver during navigation along the route. Using (i) the retrieved visual landmarks and (ii) the imagery collected at the vehicle, a subset of the visual landmarks that are currently visible to the driver is selected. Navigation directions describing the route are provided the driver, the navigation directions referencing the selected subset of the visual landmarks and excluding the remaining visual landmarks.

A memory cell is disclosed, including a write access transistor coupled between a storage node and a write bit line, and active during a write cycle responsive to a voltage on a write word line; a read access transistor coupled between a read word line and a read bit line, and active during a read cycle responsive to a voltage at the storage node; and a storage capacitor coupled between the read word line and the storage node. Methods for operating the memory cell are also disclosed.

The invention discloses a CT (Computed Tomography) value correcting method for cone-beam CT. The CT value correcting method comprises the following steps: scanning air, a water phantom and a bone tissue body phantom under different scanning conditions to respectively obtain projection data; reestablishing an image; removing noise and artifacts by adopting a polynomial fitting method based on a template image; selecting a plurality of interested regions and calculating a mean value of an attenuation coefficient and a standard deviation of the attenuation coefficient; obtaining the value range of the attenuation coefficient and taking the attenuation coefficient of maximum occurrence probability; fitting the attenuation coefficients of the air, the water phantom and the bone tissue body phantom under the different scanning conditions with corresponding ideal CT values to obtain respective fitting curves; performing CT scanning and image reestablishment on a scanned material; obtaining a CT value image according to a material attenuation coefficient image and a fitting curve and finishing the CT value correction. According to the CT value correcting method disclosed by the invention, image noise and artifact can be effectively reduced, the reestablished image of single material reaches the uniformity to the great degree, the precision of the attenuation coefficient of the material becomes higher and further high accuracy for the fitting of the curve of the CT value and the material attenuation coefficient is realized.

A method and circuit for setting a reference voltage in a dual floating gate circuit is disclosed. During a set mode, a first and second floating gate are programmed to different charge levels that are a function of an input set voltage capacitively coupled to the first floating gate during the set mode. During a read mode, this difference in charge level is used by the dual floating gate circuit to generate a reference voltage that is a function of the input set voltage, and is preferably equal to the input set voltage.

The invention provides an intelligent GPS (global position system) route planning system and method based on cloud service. The system comprises a cloud system and multiple car-mounted terminals, wherein the car-mounted terminals are used for acquiring real-time operation parameters of a car by an OBD (on board diagnostics) and acquiring real-time position information of the car by a GPS, and sending the parameters and the information to the cloud system; the car-mounted terminals also send navigation instructions inputted by a user to the cloud system; the cloud system is used for receiving and integrating the required real-time operation parameters of the car, the real-time position information of the car and regional map information, extracting integrated data according to the navigation instructions inputted by the user and sent by the car-mounted terminals so as to establish a virtual model of traffic road conditions, and calculating a driving route and issuing the driving route to a corresponding car-mounted terminal. According to the system and the method provided by the invention, by combining the existing GPS technology and the existing OBD technology, the acquired real-time operation parameters and real-time position information of the car are collected to a cloud computing platform, and an intelligent dynamic car driving route is planned through cloud computing; the reference is higher than that of the existing static route planning.

A control device is capable of controlling each of a robot having a robot arm, and an imaging portion which is capable of capturing a first reference marker, a second reference marker, and a third reference marker, any one of the imaging portion, the first reference marker, the second reference marker, and the third reference marker is provided in the robot, and a posture of a reference surface parallel to a plane which passes through the first reference marker, the second reference marker, and the third reference marker, is acquired based on a first image in which the first reference marker is captured by the imaging portion, a second image in which the second reference marker is captured by the imaging portion, and a third image which captures the third reference marker by the imaging portion.

A system and method of machine learning that uses an inverse matrix of a reference similarity matrix as a transformation matrix. The reference similarity matrix relates a reference set of objects to themselves using a distance metric such as an image edit distance. The transformation matrix is used to improve the performance of query vectors in classifying or identifying digital representations of an unknown object. The query vector is a measure of similarity between the unknown object and the members of the reference set. Multiplying the query vector by the transformation matrix produces an improved query vector having improved similarity scores. The highest improved similarity score indicates the best match member of the reference set If the similarity score is high enough, the unknown object may either be classified as belonging to the same class, or recognized as being the same object, as the best match object.

The invention discloses an attentiveness training and evaluation device based on force tactile-sensation feedback and electroencephalic signal analysis. The device includes a force tactile-sensation training unit, an electroencephalic recording unit and a control unit. The force tactile-sensation training unit is used to send finger touch force data of a trainee to the control unit. The electroencephalic recording unit is used to send electroencephalic signals of the trainee in a training process to the control unit. The control unit includes a training module, an evaluation module and a control module. The training module is used to store training modes. The evaluation module evaluates data fed back by the force tactile-sensation training unit and the electroencephalic recording unit. Thecontrol module adaptively adjusts training difficulty according to an evaluation result. A physiological index and a behavioral index which characterize an attentiveness level are obtained at the same time, the attentiveness level of the subject can be improved in a short term, an anastomosis degree between the obtained physiological index and behavioral index is very high, and the attentivenesslevel of the trainee can be reliably analyzed and evaluated.

A circuit and method for a sense amplifier for sensing the charge stored by a memory cell is disclosed. The memory cell is coupled to a bit line, a complementary bit line and a differential sense amplifier is coupled to the bit line and the complementary bit line. A control signal couples a reference voltage to the complementary bit line. A positive precharge voltage is applied to the bit line and complementary bit line prior to the sense amplifier being enabled. The memory cell outputs a voltage to the bit line responsive to a word line, and the sense amplifier senses the differential voltage between the bit line and the complementary bit line responsive to a sense enable signal. A voltage regulator for generating the reference voltage, preferably about 80% of a positive supply voltage, is disclosed. A method of sensing data stored by a memory cell is disclosed.

This invention relates to Activity Dependent Neurotrophic Factor I complex (ADNF I complex) and polypeptides of this complex, which produce their neurotrophic effects through multiple proteases intrinsic to the ADNF I complex. The invention also relates to pharmaceutical compositions comprising ADNF I complex polypeptides, as well as methods for reducing neuronal cell death in vitro and in vivo, methods for treating oxidative stress in a patient, methods for reducing a condition associated with fetal alcohol syndrome in a subject, and methods of enhancing learning and memory both pre- and post-natally, all of which methods use the ADNF I complex polypeptides of the invention.

A metal oxide semiconductor (MOS) bandgap voltage reference circuit with a plurality of dummy bipolar junction transistors (BJTs) coupled to the mismatched parasitic substrate BJTs for improving parasitic capacitance matching, thereby improving startup behavior of the bandgap reference circuitry.