63results about How to "Improve reliability and precision" patented technology

A system improves precision and reliability of intra-cardiac catheter position tracking and monitoring. An interventional system for internal anatomical examination includes a catheterization device for internal anatomical insertion. The catheterization device includes, at least one magnetic field sensor for generating an electrical signal in response to rotational movement of the at least one sensor about an axis through the catheterization device within a magnetic field applied externally to patient anatomy and a signal interface for buffering the electrical signal for further processing. A signal processor processes the buffered electrical signal to derive a signal indicative of angle of rotation of the catheterization device relative to a reference. The angle of rotation is about an axis through the catheterization device. A reproduction device presents a user with data indicating the angle of rotation of the catheterization device.

Described herein is a wireless device, provided with: a transceiver module, which transmits data packets that have a transmission-power level selectable from among a number of power levels and include information of the transmission-power level, and receives data packets from surrounding devices; and a control unit, which is connected to the transceiver module and controls the transmission and reception of the data packets by the transceiver module. The control unit carries out processing operations on the data packets received from the surrounding devices in a detection time interval in order to determine proximity relations between the wireless device and said surrounding devices.

Precision and reliability of a current limited mode output power control of an RF amplifier is enhanced by sensing the base current of the current controlled output power transistor. The base current is compared to a control current that is normalized by scaling it as a function of the current gain of a bipolar junction transistor of similar characteristics as the output power transistor. Fabrication process spread of current gain figures of bipolar junction transistors is effectively compensated. Moreover, by using a band-gap temperature compensation control current that is eventually β-scaled before comparing it with the sensed base current of the output power transistor, the output power may be effectively controlled and maintained constant over temperature as well as process spread variations.

Disclosed herein is a wireless location determination system and method.

A wireless location determination system of the present invention includes one or more location determination nodes (reception units) for calculating standard deviations of time intervals between pulses sequentially received from a location determination target, and estimating reliability values from the standard deviations. A location determination server receives messages, including the reliability values, from the location determination nodes, and obtains a location of the location determination target (transmission unit). Accordingly, the present invention can not only improve the resolution of location determination by correcting the distances between the location determination target and the respective location determination nodes, but also can easily observe the location determination performance of a relevant node by monitoring reliability values of the location determination nodes, and can regard the reliability values as measures for the observation of performance and the maintenance of location determination nodes.

A multi-link wireless channel sounder is provided. The multi-link wireless channel sounder includes a multi-input multi-output (MIMO) antenna unit, a transmitter (TX) signal processing unit configured to transmit via the MIMO antennas one or more TX wireless channel signals to be transmitted via a wireless channel, a receiver (RX) signal processing unit configured to receive and process one or more RX wireless channel signals that are received from multiple links via the MIMO antenna unit, and a control unit configured to receive an operation mode selection signal that indicates a TX mode or an RX mode from a user and to control the TX signal processing unit or the RX signal processing unit to operate selectively in accordance with the operation mode selection signal.

A method and an apparatus for determining rotary angle related measurement data of a body mounted rotatable about an axis of rotation, the body being a vehicle wheel or a part of a vehicle wheel, in particular a tyre or a rim, the method comprising the steps of obtaining measurement data comprising a plurality of measurement data elements of the rotating body together with respective measuring times, determining at least one rotational speed or revolution period of the body for at least one point in time, and associating the obtained measurement data elements to respective rotary angles of the body based on the respective measuring times and the at least one rotational speed or revolution period of the body.

Optical analyzer (10,50,60) comprises an optically integrating cavity (20), the optically integrating cavity (20) formed by at least one optical light diffusing wall (31) and adapted to contain a sample of a solid agricultural product, the sample consisting of one or more sample elements (41,48), a light source (13,33), emitting light into the optically integrating cavity (20), whereas the at least one optical light diffusing wall (31) is utilized to convert emitted light to diffused light, whereas the sample at least partially or completely converts the diffused light to spectrally filtered light, and a spectral sensor (26). The sample is confined in the optically integrating cavity (20) while the spectral sensor (26) is being exposed to the spectrally filtered light. Patent application has independent claims also for optical analyzing method and sample preparation device.

A method for improving the precision and reliability of the heating control for an anesthetic machine circuit, comprises: a 1-wire temperature sensor is positioned in the anesthetic machine circuit and electrically connected to a control unit. The control unit reads the ID and verification code of the temperature sensor according to 1-wire protocol and determines the validity of the temperature sensor. The control unit reads the temperature value of the temperature sensor and compares it with the target control temperature. The control unit then turns on the control switch when requiring heating such that power supply powers the heater and the circuit temperature rises, or on the contrary turns off the control switch and the circuit temperature drops according to a control algorithm. The average power of the heater is controlled by PWM method such that the circuit is operated at a predetermined control temperature. With the usage of the 1-wire temperature sensor, the problem of analog signal transmission error is solved, the use of the sensor is facilitated, a long-distance temperature detection and control is obtained. At the same time the digital signal form and interface protocol of the sensor have relative higher anti-disturbance performance and failure recognition function. Accordingly, the requirement on the interface connection quality is reduced, and the reliability is improved.

A mini lead screw pump monitors the rotation of a lead screw by using a magnetoresistive sensor and an MCU, and uses feedback to control the rotation direction and speed of the lead screw through a motor controller so as to control the speed of infusion to a patient. Furthermore, this mini lead screw pump can control the infusion speed of insulin according to the patient's blood sugar concentration monitored by CGM. This mini lead screw pump has several advantages, comprising high sensitivity, high reliability, low power consumption, low cost, and ease of use.