36results about How to "Improve sensing quality" patented technology

An image sensing apparatus includes a substrate, a light guide plate, a plurality of photosensors and a light source. The substrate has a first side. The light guide plate has a light exit surface and a light entry surface, wherein the light exit surface faces the first side of the substrate. The photosensors are disposed on the first side of the substrate. The light source is disposed near the light entry surface of the light guide plate, wherein light generated from the light source enters the light guide plate through the light entry surface. After entering the light guide plate, the light generated from the light source is incident to the substrate through the light exit surface of the light guide plate, or travels in the light guide plate by total internal reflection.

The cognitive radio system and method uses a wideband chirp signal. A cognitive radio base station broadcasts the low power reference wideband chirp signal with bandwidth covering the sensed spectrum. At the receiver, a Fast Fourier Transform is applied to the output of a chirp signal matched filter. The filter output is fed to decision circuitry, where a threshold value is set to decide the minimum spike's amplitude to determine frequencies utilized by primary users. Using reference chirp signal and its matched filter eases sensing computational complexity and improves the quality of sensing, thereby offering enhanced cognition at the CR receiver.

A sensing device is provided. The sensing device includes a plurality of pixel groups and a readout circuit. The pixel groups are arranged on a plurality of rows and a plurality of columns to form a pixel array. The pixel groups include a first pixel group and a second pixel group which are arranged on the different rows and the same column. The readout circuit is coupled to the pixel groups. When the first pixel group is triggered to perform a readout operation to generate a first sensing signal, the second pixel group performs a coupling operation to generate a reference signal. The readout circuit performs a subtraction operation based on the first sensing signal and the reference signal to generate a first readout data corresponding to the readout operation of the first pixel group.

The cognitive radio system and method uses a wideband chirp signal for characterization of the spectra that a mobile radio may use. A cognitive radio base station broadcasts the low power reference wideband chirp signal with bandwidth covering the sensed spectrum. At the receiver, spectral resolution in the presence of white noise is achieved by cross-correlating the chirp signal with a locally generated copy of itself (i.e., matched filtering). A Fast Fourier Transform (FFT) is applied to the output of this matched filtering. The FFT output is fed to a decision circuitry, where a threshold value is set to decide the minimum amplitude of utilized frequencies. This process eases sensing computational complexity and improves the quality of sensing, thereby offering enhanced cognition at the cognitive radio receiver.

There is provided an underwater measurement system (20, 30, 40) for monitoring an underwater region (10). The system (20, 30, 40) includes a sensor assembly operable to sense at least one physical variable in the region (10) for generating at least one corresponding sensor signal, and a data processing arrangement (170, 510, 520) for processing the at least one sensor signal to generate processed data for presentation and / or logging. The sensor assembly (20) includes one or more voltage sensors (190) configured to sense electric fields present in the underwater region (10) and provide information in the at least one signal indicative of the electric fields. Moreover, the sensor assembly (20) includes one or more hydrophones (200) operable to receive sonic energy generated in the underwater region (10) and to include corresponding information in the at least one sensor signal for communicating to the data processing arrangement (170, 510, 520).

The invention relates to a sensing apparatus for sensing an object. The sensing apparatus comprises an ultrasound unit (11) for ultrasonically sensing the object (4), an electrical energy application unit (9) for applying electrical energy to the object (4), and an ultrasound unit shielding element (16) for electrically shielding the ultrasound unit (11), wherein the ultrasound unit shielding element (16) is electrically connected to the electrical energy application unit (9). Since the ultrasound unit shielding element electrically shields the ultrasound unit, the ultrasound sensing of the object is less influenced by a capacitive coupling of the application of electrical energy, in particular, of an RF signal which may be used for applying the electrical energy, into the ultrasound sensing. A further reduction of this influence is achieved by electrically connecting the ultrasound unit shielding element to the electrical energy application unit.

A sensor package structure includes a substrate, a sensor chip on the substrate, a ring-shaped support, a light permeable board on the ring-shaped support, and an opaque package body formed on the substrate. A top surface of the sensor chip includes a spacing region and a carrying region surrounding the spacing region. The support is disposed on the carrying region. The light permeable board has a ring-shaped notch recessed from an upper surface thereof, and the notch includes a platform surface at least partially located above the support and a wall surface connected to the platform surface and located above the spacing region. A portion of the opaque package body fills the notch and is defined as a light shielding portion. An inner lateral side of the support is arranged in a projection area formed by orthogonally projecting the platform surface onto the top surface.

The invention relates to an optimization algorithm based on edge computing that is applied in the MCS (Mobile Crowd Sensing) sensing task scene, and is based on the recruitment of task participants, the judgment of information validity, and the detection and correction of errors. The present invention represents platform utility as a logarithmic function (strictly increasing and sagging) of independent measurement data for each location, and the algorithm aims to maximize total utility under exerting budget constraints. Since the proposed joint optimization problem is a non-deterministic polynomial combinatorial optimization problem, it cannot be solved in polynomial time. Therefore, we design an approximation algorithm that greatly reduces the computational complexity. The present invention uses a deep neural network (DNN) for data verification, thereby increasing the accuracy of predicted data. In addition, the present invention also adopts data redundancy to improve the sensing quality, and when measurement errors are detected near the data source, the amount of data transmitted from the base station to the sensing platform is greatly reduced, the occupied frequency band resource is reduced, and the time delay is reduced.

For a capacitive touch device having a capacitive touch sensor to be sensed to generate sensed values, a sensing apparatus and method statistically analyze the sensed values generated in a certain time period to evaluate the sensing quality thereof, discard the poor reliable sensed values, and re-sense the capacitive touch sensor to generate new sensed values, by which the resultant output signal will have improved reliability.

A fingerprint sensing module, including a photosensitive element layer and a color filter layer, is provided. The photosensitive element layer has multiple photosensitive regions, and includes a substrate and multiple photosensitive pixels. The photosensitive pixels have multiple photosensitive patterns overlapping the photosensitive regions. The photosensitive pixels include multiple first photosensitive pixels overlapping multiple first photosensitive regions and multiple second photosensitive pixels overlapping multiple second photosensitive regions. A percentage value of a number of the second photosensitive pixels to a number of the photosensitive pixels is less than 30%. An orthographic projection area of each of the first photosensitive regions is different from an orthographic projection area of each of the second photosensitive regions. The color filter layer has multiple openings overlapping the first photosensitive pixels and multiple first color filter patterns overlapping the second photosensitive pixels.

A mutual capacitive touch panel includes a first electrode layer and a second electrode layer. The first electrode layer includes a plurality of first electrode series and a plurality of second electrode series. The second electrode layer includes a plurality of electrode strips, and each electrode strip crosses the first electrode series and the second electrode series. Each first electrode series includes a plurality of first electrodes and a plurality of second electrodes electrically connected with each other, and each first electrode and a corresponding one of the second electrodes are disposed abreast and form an electrode set. Each second electrode series includes a plurality of third electrodes electrically connected with each other, and each electrode set and each third electrode are arranged alternately along a direction.