463results about How to "Improve output quality" patented technology

A system and method for streaming media on a wireless network is provided. In one aspect, the system includes a streaming device driver; a multidestination wireless streaming protocol module, a multitank level algorithm module, a synchronization mechanism module, and an autoequalizing speaker and drive system module. The system and method minimize latency, dropout, jitter, and synchronization issues associated with media streaming while optimizing performance and output quality of the media.

A head-mountable display device comprises a frame to be mounted onto a user's head. The frame defines an eye display position which is positioned in front of a user's eye. A reflective element is mounted with respect to the eye display position and comprises a reflective surface which is visible to the eye of the user. A mobile device holder is configured to hold a mobile device on the frame. The reflective surface is configured to reflect light incident upon the reflective surface, forming a reflected image. The location and orientation in which the mobile device is held relative to a location and orientation of the reflective surface are such that light arriving from a screen of the mobile device held in the mobile device holder is reflected by the reflective surface so that a reflected image of at least part of the screen is visible to the user.

A dual loop voltage regulation circuit of power supply chip is provided, comprising a capacitor for providing a voltage signal, a comparator for comparing a first reference voltage signal and the voltage signal to output forward or backward trigger signal, a first switch triggered by a forward trigger signal, a second switch triggered by a backward trigger signal, a first operational amplifier generating a first drive signal while the first and second switches are on, a first transistor switch triggered to be on by a first drive signal to provide a current source loop, a third switch triggered by a forward trigger signal, a fourth switch triggered by a backward trigger signal, a second operational amplifier generating a second drive signal while the third and fourth switches are on, and a second transistor switch triggered to be on by a second drive signal to provide a current sink loop.

A mobile terminal includes a flexible display unit configured to be deformed from a first state as an unfolded state to a second state as a folded state or from the second state to the first state, a first body unit configured to support one region of the display unit, a second body unit rotatably connected to the first body unit, configured to support the other remaining region of the display unit, and configured to become away from the first body unit while the flexible display unit is being changed from the second state to the first state, and a hinge unit configured to rotatably connect the first and second body units.

A parameter representation of a multi-channel signal having several original channels includes a parameter set, which, when used together with at least one down-mix channel allows a multi-channel reconstruction. An additional level parameter is calculated such that an energy of the at least one downmix channel weighted by the level parameter is equal to a sum of energies of the original channels. The additional level parameter is transmitted to a multi-channel reconstructor together with the parameter set or together with a down-mix channel. An apparatus for generating a multi-channel representation uses the level parameter to correct the energy of the at least one transmitted down-mix channel before entering the down-mix signal into an up-mixer or within the up-mixing process.

Disclosed are methods and systems for interfaces between video applications and display screens that allow applications to intelligently use display resources of their host device without tying themselves too closely to operational particulars of that host. A graphics arbiter provides display environment information to the video applications and accesses the applications' output to efficiently present that output to the display screen, possibly transforming the output or allowing another application to transform it in the process. The graphics arbiter tells applications the estimated time when the next frame will be displayed on the screen. Applications tailor their output to the estimated display time, thus improving output quality while decreasing resource waste by avoiding the production of “extra” frames. The graphics arbiter tells an application when its output is fully or partially occluded so that the application need not expend resources to draw portions of frames that are not visible.

A data transmission system is provided for transmitting a data signal between a server and a communications terminal over a transmission link having a variable bandwidth. The data signal is a scalable compressed multimedia clip comprising a sequence of images. Each image has a base layer and a number of enhancement layers. To cope with variability in the bandwidth, the sequence is re-ordered so that the base layers have greater safety times than the enhancement layers. This allows all of the base layers to arrive in time to be played at the expense of the enhancement layers.

Autocorrelation values are determined as a basis for an estimation of a pitch lag in a segment of an audio signal. A first considered delay range for the autocorrelation computations is divided into a first set of sections, and first autocorrelation values are determined for delays in a plurality of sections of this first set of sections. A second considered delay range for the autocorrelation computations is divided into a second set of sections such that sections of the first set and sections of the second set are overlapping. Second autocorrelation values are determined for delays in a plurality of sections of this second set of sections.

An expert system for more efficiently and accurately deducing document structure from document formatting, the expert system including a conversion engine for converting an unstructured file to a structured file, and a verification engine, responsive to the output of the conversion engine, for generating and displaying a representation of the structured file annotated with a visual depictions of the classified components thereof so that the annotations can be modified and / or classifications can be added and / or classifications can be suggested, and / or rules for classification can be suggested and the structured file reprocessed by the conversion engine.

A data transmission system (10) is provided for transmitting a data signal between a server (12, 14, 16, 18) and a communications terminal (20, 22) over a transmission link having a variable bandwidth. The data signal is a scalable compressed multimedia clip comprising a sequence of images. Each image has a base layer and a number of enhancement layers. To cope with variability in the bandwidth, the sequence is re-ordered so that the base layers have greater safety times than the enhancement layers. This allows all of the base layers to arrive in time to be played at the expense of the enhancement layers.

The invention provides an efficient implementation of cross-product enhanced high-frequency reconstruction (HFR), wherein a new component at frequency QΩ+Ωq is generated on the basis of existing components at Ω and QΩ+Ωq. The invention provides a block-based harmonic transposition, wherein a time block of complex subband samples is processed with a common phase modification. Superposition of several modified samples has the net effect of limiting undesirable intermodulation products, thereby enabling a coarser frequency resolution and / or lower degree of oversampling to be used. In one embodiment, the invention further includes a window function suitable for use with block-based cross-product enhanced HFR. A hardware embodiment of the invention may include an analysis filter bank (101), a subband processing unit (102) configurable by control data (104) and a synthesis filter bank (103).

An automatic speech segmentation and verification system and method is disclosed, which has a known text script and a recorded speech corpus corresponding to the known text script. A speech unit segmentor segments the recorded speech corpus into N test speech unit segments referring to the phonetic information of the known text script. Then, a segmental verifier is applied to obtain a confidence measure of syllable segmentation for verifying the correctness of the cutting points of test speech unit segments. A phonetic verifier obtains a confidence measure of syllable verification by using verification models for verifying whether the recorded speech corpus is correctly recorded. Finally, a speech unit inspector integrates the confidence measure of syllable segmentation and the confidence measure of syllable verification to determine whether the test speech unit segment is accepted or not.

The present invention relates to a three-stage foldable mobile terminal having a flexible display, and can provide a mobile terminal comprising: a body portion which comprises first to third bodies rotatably connected to each other and which implements a first state in which the first to third bodies are arranged side by side in one direction and a second state in which the first to third bodies overlap each other by the at least one hinge unit, respectively; and a flexible display unit which is mounted on the body portion, wherein the body portion comprises: a main circuit board which is disposed on the first body; a flexible circuit board which electrically connects the first and second bodies in the first state; and a connection member which is disposed on the second body so that the main circuit board and the third body are electrically connected to each other in the second state.

The application discloses a GAN image processing method and system. The method comprises the steps of receiving random noise, and generating a generative image by using a generative network based on an improved LSGAN; receiving a real image, and performing image gradient transformation of different degrees on the real image and the generative image respectively to obtain a transformed image set; and inputting transformed images in the transformed image set respectively into channels of a multi-channel convolutional network of a discrimination network, and extracting and fusing features to obtain an output result. In this application, the random noise is input to the generative network to generate the generative image, then the real image is received, the image gradient transformation of different degrees are respectively performed on the real image and the generative image to obtain the transformed image set, the transformed images in the transformed image set are input respectively into the channels of the multi-channel convolutional network of the discrimination network, extraction and fusion of features are performed to obtain the output result, the network is allowed to have a good generalization ability, the phenomenon of gradient disappearance avoided, and more realistic pictures with higher quality can be output.

The invention discloses a fine aggregate processing production system, which is characterized in that raw materials enter a sand making machine through a feeding device for sand crushing and making, obtained sand is conveyed to a screening screen for classification, wherein the sand with the particle size of 0-5mm is conveyed to a sand powder separation machine for sand separation; the sand with particle size larger than 5mm is classified into two categories, the sand with the particle size larger than 26mm is conveyed to the sand making machine for remaking, and the sand with the particle size of 5-16mm is conveyed to a grading adjustment machine connected with the screening screen for shaping and is returned to the sand making machine again for sand making. The fine aggregate processing production system adopts electric control centralized control, and grading adjustment is simultaneously performed during sand making so that production flow is shortened. The fine aggregate processing production system is provided with a dust removing and humidification device so as to achieve zero-emission production and save cost, and has huge economic value.

A method and apparatus for agricultural product production with heat and moisture control with optional heat and moisture recovery. Some embodiments transfer heat and moisture from a warm, moist exhaust air stream to incoming agricultural material, steam condition the material, pelletize the material into warm pellets, cool the warm pellets with make-up air to produce the warm, moist exhaust air used to transfer heat to the incoming material and to produce cooled pellets, wherein the cooled pellets are at a temperature lower than the warm moist air. In some embodiments, the system includes counter-flow devices to transfer heat and moisture. In some embodiments, a controller is used to adjust system devices and overall system flow. In some embodiments a water sprayer, to moisten agricultural product when the product is over dry, and an air flow controller, to slow air flow through the pellet dryer / cooler when ambient temperatures are dryer / cooler, are provided.

The invention discloses a high efficient frame-accurate TS stream splicing method. The method comprises: a de-multiplexing process is carried out; more particularly, de-multiplexing operation is carried out on to-be-played audio and video files in an MPEG-TS form, a TS packet is unpacked into a PES packet and the PES packet is unpacked into an ES packet, so that a video ES packet, an audio ES packet and synchronizing information are obtained, wherein the synchronizing information includes PTS / DTS information and source signs of all the audio ES packet and the video ES packet; a basic stream ES splicing process is carried out; more particularly, PTS / DTS are unifiedly regenerated for ES packets with different sources according to the synchronizing information, processing is carried out on video ES packets at different source splicing positions according to a splicing algorithm and output synchronizing information is regenerated PTS / DTS; a single program transport stream TS multiplexing process is carried out; more particularly, an empty packet is inserted to enable a code rate of the single program transport stream to be maintained to be constant; and a multiple program stream multiplexing process is carried out; more particularly, special-purpose multiplexing equipment is employed to multiplex a multipath single program transport stream into a multiple program transport stream. According to the invention, frame-accurate seamless splicing on hardware files is realized; an output quality is improved; and the method can be applied to fields having high requirements on image qualities.

The invention discloses a management method for the stand-by and the complete machine electrification of a television. The method adopts the following components: a main processor which is electrified to work after the television is turned on and an auxiliary MCU chip for maintaining the electrification work during the stand-by of the television, wherein, after receiving the turn-on command signal, the auxiliary MCU chip outputs a control signal and controls the complete machine electrification work of the television, and controls the turn-on display of the display screen after a period of time delay. The delay time is equal to the running time of the built-in initialization program of the main processor. The invention simultaneously discloses a management circuit for the stand-by and the complete machine electrification of a television, through the full use of the auxiliary MCU chip charged for receiving the turn-on command in the prior television circuit, the auxiliary MCU is simultaneously used as the electrification time sequence control unit of the display screen, thereby, phenomena of screen flash and image abnormality due to the uncontrollability of the display screen during the electrification initialization of the main processor, therefore, the image output quality is effectively improved.

A facility for selecting and refining electrical parameters for processing a microelectronic workpiece in a processing chamber is described. The facility initially configures the electrical parameters in accordance with either a mathematical model of the processing chamber or experimental data derived from operating the actual processing chamber. After a workpiece is processed with the initial parameter configuration, the results are measured and a sensitivity matrix based upon the mathematical model of the processing chamber is used to select new parameters that correct for any deficiencies measured in the processing of the first workpiece. These parameters are then used in processing a second workpiece, which may be similarly measured, and the results used to further refine the parameters. In some embodiments, the facility analyzes a profile of the seed layer applied to a workpiece, and determines and communicates to a material deposition tool a set of control parameters designed to deposit material on the workpiece in a manner that compensates for deficiencies in the seed layer.

The invention discloses a loudspeaker control method and a loudspeaker control device. The loudspeaker control method comprises the steps of: acquiring an input digital signal; filtering and buffering the input digital signal separately to obtain a buffer signal at the current moment; and adjusting gain of the buffer signal based on a voltage signal and a current signal at two ends of a loudspeaker at the current moment, so as to control structural performance parameters of the loudspeaker within a preset range. The loudspeaker control method and the loudspeaker control device can improve quality of audio signals output by the loudspeaker.

Autocorrelation values are determined as a basis for an estimation of a pitch lag in a segment of an audio signal. A first considered delay range for the autocorrelation computations is divided into a first set of sections, and first autocorrelation values are determined for delays in a plurality of sections of this first set of sections. A second considered delay range for the autocorrelation computations is divided into a second set of sections such that sections of the first set and sections of the second set are overlapping. Second autocorrelation values are determined for delays in a plurality of sections of this second set of sections.

A thermal transfer print head is disclosed. The print head includes a housing configured and dimensioned to be installable within the printer, a plurality of resistive heating elements positioned on an external surface of the housing and in thermal contact with a printable media, the resistive heating elements receive electrical energy from the printer and have adjustable thermal output, and a print head memory positioned within the housing and accessible by the thermal printer, the print head memory including a first and second memory regions, the first memory region configured to store a printing profile pertaining to operating parameters of the resistive heating elements and the second memory configured to store usage data pertaining to operation of the print head.

The invention provides a speech synthesis method, device and equipment and a storage medium. The method comprises the steps that obtained text information is preprocessed through a speech synthesis device, and a text vector of the text information is obtained; the text vector is input into a preset acoustic model, and a first acoustic parameter vector corresponding to the text vector is obtained,wherein the acoustic model is used for processing the text vector according to a memory matrix to obtain the first acoustic parameter vector; speech information corresponding to the text message is synthesized according to the first acoustic parameter vector. Due to the fact that the memory matrix is updated continuously in the acoustic model, historical text information is memorized more effectively, the overall prediction effect of the acoustic model is improved, and then the output quality of the speech information is improved.

A power electronics system for charging at least one electrically operated vehicle, wherein the power electronics system has at least two modules each having at least one terminal pair with DC output, at least one rectifier, at least one AC input, at least one DC link and a number of switching elements the switching elements are arranged at and / or between the DC outputs of the at least two modules in such a way that, between the at least two modules, at least one series and one parallel circuit configuration can be selectively dynamically set by suitable switching states of the switching elements.

The invention relates to a SegNet remote sensing image semantic segmentation method combined with random walk, which is divided into a SegNet initial segmentation step and a random walk optimization segmentation step. The SegNet initial segmentation step outputs an initial semantic segmentation image and category intensity information through the SegNet. A method for optimize segmentation of random walk includes selecte a random walk seed region, calculating classification saliency indexes of different class according to classified intensity information output by SegNet, and selecting seed regions of different classes by setting a threshold value; secondly, the undirected edge weights are calculated according to the original image gradient and SegNet classification intensity information. In the third step, starting from the seed region and combining with the undirected edge weights, the segmentation image is randomly walked on the whole initial segmentation image, and finally the optimized segmentation result on the whole image is obtained. The invention randomly walks on the whole image, realizes prediction error and control, greatly reduces edge burr and patch classification error, and completes high-precision remote sensing image semantic segmentation.

The invention discloses a large-scale photon capture bioreactor for water purification and aquaculture. The bioreactor comprises a lockable three-dimensional building space. Each plane layer in the lockable three-dimensional building space is provided with a sinuous water channel. Each channel is provided with a water inlet and a water outlet. A plurality of filtering units are installed in each water channel at intervals. In each filtering unit, plants are planted on the water surface by a floating planting method, and aquatic animal and microorganisms are underwater. Plant growth irradiating lights with adjustable height are suspended above the plants by the floating planting method. An impeller is installed at the lower end of the water outlet of the water channel in the upper layer. The impellers are connected to an electric generator. The water inlet of the water channel in a lower layer is installed below the corresponding impeller. Water to be purified is fed to the water inlet of the water channel in the top layer of the three-dimensional building space firstly. The bioreactor mainly has advantages of easily controllable quality, high reaction efficiency, small occupied space, low investment, convenient management, low operation cost, no pollution in the ecological production process, and significant economic benefit.

A computer-implemented method is disclosed for enhancing quality of an audio source. The method comprises receiving control information; receiving an initial signal from the audio source; and generating a dynamic control signal based on the control information. The control information includes attack, release, length, and gain parameters.

The invention discloses a three-level PWM rectifier model prediction control method. The method includes: firstly, establishing a three-level PWM rectifier discrete prediction model, and performing state sampling on a PWM rectifier system; then predicting the state of the PWM rectifier system according to the discrete prediction model to obtain a corresponding predicted value and an expected value; calculating a value function value corresponding to each switching state, comparing the value function values one by one, and obtaining the switching state corresponding to a minimum value functionthrough screening and comparison, wherein the corresponding switching state thereof is the optimal solution of the FCS-MPC. According to the control method, the dynamic and steady-state performances of the system can be effectively enhanced, the output quality of the PWM rectifier is high, the perfectness and the adaptability of offline planning are high, the switching frequency of the system canbe effectively reduced, and the switching loss is greatly reduced.