330results about How to "Improve recording effect" patented technology

An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer containing a ferromagnetic powder and a binder on a nonmagnetic support, wherein the ferromagnetic powder is comprised of magnetic particles comprising a hard magnetic particle and a soft magnetic material deposited on a surface of the hard magnetic particle in a state where the soft magnetic material is exchange-coupled with the hard magnetic particle.

The present invention discloses a microphone sound recording control method, a sound source positioning method, a digital audio signal processing method and a corresponding device thereof. The invention is used for increasing the sound recording effect of digital device. The microphone sound recording control method provided by the invention comprises the following steps: obtaining the distance from the target sound source to the microphone array in the sound recording process of microphone array; and adjusting the included angle two microphones in the microphone array. The sound source positioning method provided by the invention comprises the following steps: obtaining the distance from the target sound source to the microphone array in the sound recording process of microphone array; confirming the sound pick-up angle of microphone array according to the obtained distance; respectively confirming the maximum crosscorrelation values of audio signals received by two microphones in the microphone array; and confirming the sounding probability of target sound source according to the ratio between the maximum crosscorrelation value confirmed in the range of sound pick-up angle and the maximum crosscorrelation value confirmed outside the range of sound pick-up angle.

In order that it is realized to put 16× speed DVD-RAM in practice, a recording method coping with CAV (constant angular velocity) and a method for improving S / N ratio are provided and an optical disk device using them is provided. In order that a cutoff phenomenon of pulse in a laser driving circuit may not occur, the shortest pulse width is set at 1 Tw or more where Tw indicates a window width, and a recording pulse in which a 4T mark is recorded with a mono pulse where T indicates a detection window width and the parameter setting range are prescribed. Simultaneously, a reproduction power for 6× speed or more is set at 1.5-2.0 mW, different from a conventional value, and a setup sequence with which deterioration of data in reproducing does not occur is provided. Thereby it becomes possible to put 16× speed DVD-RAM in practice.

The invention discloses a recording system and method based on multi-microphone array beam forming. The recording system based on multi-microphone array beam forming comprises multiple microphones used for collecting external voice signals, an analog-digital conversion device, a voice frequency digital signal processing device and an output device in a sequential connection mode. The recording direction can be changed in real time, only voice at a certain angle can be recorded, and the mode that other human voice and background noise excepting the voice at the certain angle are effectively eliminated is set. Meanwhile, it is unnecessary to change the position and the direction of a mobile terminal to deliberately get the mobile terminal close to the needed voice, so that the good effect of recording within 5 meters at the maximum is achieved.

A double-layer perpendicular magnetic recording medium suitable for high density recording is obtained. In one embodiment, a granular recording medium is formed on a undercoating layer, in which a first metal composed of Pt, Pd, or an alloy thereof and a second metal composed of Cr or V are included and their composition is 15%<B / (A+B)<30% when the atomic fraction of the first metal is assumed to be A and the atomic fraction of the second metal is assumed to be B.

The reduction in a recording magnetic field due to the narrowing of recording track width along with the improved surface recording density is prevented and the increasing of accuracy in the track width is achieved, enabling an improvement in recording performance. In a perpendicular magnetic recording head, a main pole 13 includes a first main pole portion 131 having an inverse trapezoidal shape with a bevel angle and a second main pole portion 132 laminated on the first main pole portion. The second main pole portion 132 has no bevel angle, is generally rectangular and defines track width. The second main pole portion has a tapered shape extending from the predetermined position of a flare portion toward an air bearing surface.

The invention discloses a handwriting recognition method based on a handwriting coordinate sequence. The method includes acquiring a lot of data of the handwriting coordinate sequence, obtaining a general recognition model, and then training the handwriting coordinate sequence of a user through the recursive neural network to form a recognition model adaptive to the user's handwriting habit. Because the time characteristic of the user's handwriting is recorded, after the training, the recognition model adaptive to the user's handwriting habit is formed, so that the recognition precision is high. According to the invention, the training model calculation speed can be adjusted for the handwriting speed of different users by changing the sampling frequency of a handwriting input device, and the data volume of the handwriting coordinate sequence; and moreover, the recognition can be carried out during the handwriting, and the recognition efficiency is high.

A perpendicular magnetic recording medium has a substrate, a soft magnetic underlayer formed on the substrate, arrayed soft magnetic dots formed on the soft magnetic underlayer, and a ferromagnetic recording layer formed on the soft magnetic dots and having magnetic anisotropy in a direction perpendicular to a surface of the substrate.

The invention discloses an audio information processing method which is used for solving the technical problem that in the prior art, the display effect of an electronic device is poor. The method includes the steps that when a voice file is output, and M segments of audio information with a first vocal print characteristic in the voice file are analyzed; the M segments of audio information are compared with N segments of audio samples, first audio samples corresponding to the vocal print characteristic same as the first vocal print characteristic in the N segments of audio samples are determined, and first user identification information corresponding to the M segments of the audio information is determined according to the correspondence relation between the audio samples and the user identification information; the voice file is output; when the audio information with the first vocal print characteristic is played, the first display effect of an electronic device is controlled to display the first user identification information. The invention further discloses the electronic device used for achieving the method.

A magnetic powder consisting of substantially spherical or ellipsoidal particles comprising a transition metal which comprises iron and a rear earth element which is mainly present in the outer layer of the magnetic powder particles, and having a particle size of 5 to 200 nm, a coercive force of 80 to 400 kA / m and a saturation magnetization of 10 to 25 uWb / g.

Ink jet recording sheet has excellent recording properties and print preservability (especially, print light resistance and ozone resistance) for dye ink as well as pigment ink. The ink jet recording sheet includes: a supporting medium; and an ink receiving layer disposed on the supporting medium, the ink receiving layer including pigment, at least a styrene-acryl copolymer resin as an adhesive, and a guanidine compound and a secondary ammonium salt compound as a cationic polymer.

The invention relates to multimedia storage method, system and device. The multimedia storage method comprises the following steps: acquiring a user recording program list and recording document information of the recorded multimedia contents; judging whether to accept or reject the recorded multimedia contents according to the user recording program list and the recording document information, saving necessary recording documents in the recorded multimedia contents according to the result of the judgment, and deleting unnecessary recording documents in the recorded multimedia contents. The user recording program list is used for providing time shifting service or / and review service. The technical scheme can share one recording document in a time shifting and review mode, reduce the IO resources by writing and storing with one media server, double the recording performance of the media server and also reduce the storage space waste of the recorded contents of the time shifting programs.

The volume hologram recording photosensitive composition provided by the present invention contains at least a fluorine-contained photoreactive compound represented by the following formula (1): R1—R3—(CF2)n-R4—R2 wherein R1 and R2 are photoreactive groups which can be bonded to each other by photoreaction, and each of R3 and R4 is independently a single bond or a bivalent hydrocarbon group having 1 to 5 carbon atoms, and n is an integer of 1 or more. This volume hologram recording photosensitive composition is used to form a recording section of a recording medium, and then the section is exposed to light, whereby a bright volume hologram can be obtained.

An embodiment of the invention discloses a video recording method and device and a computer readable storage medium, and belongs to the technical field of multimedia. The method is applied to a terminal comprises at least one camera, and comprises the following steps: determining a selected lyric special effect, and obtaining special effect processing information corresponding to the lyric specialeffect according to a correspondence relation list between lyric special effects and special effect processing information; in the video recording process, playing a selected song, and collecting a video picture by utilizing the camera; carrying out face recognition on the video picture to obtain a face recognition result; and based on the face recognition result, carrying processing on the lyrics playing currently according to the special effect processing information, and displaying the processed special effect lyrics. The method is characterized by obtaining the special effect processing information corresponding to the selected lyric special effect, carrying out face recognition on the collected video picture, and displaying the special effect lyrics obtained after processing according to the special effect processing information, thereby enabling the video picture to be associated with the special effect lyrics, enriching recorded video content and optimizing the video recordingeffect.

Multiple embodiments of the invention are described which include at least two laminated ferromagnetic layers with differing magnetic anisotropy. The independent magnetic layer farther away from the recording head is selected to have a lower magnetic anisotropy to allow magnetic switching of the multiple magnetic layers to occur at approximately the same head write current even though the recording head field is reduced with increased distance from the head. The improved switching yields improved magnetic recording performance. Laminated magnetic media according to the invention can have a single peak in the normalized DC erase noise vs. head write current plot indicating that the magnetic transitions in the non-slave magnetic layers are written at the same head write current. As a result the magnetic pulse width (PW50) is reduced, overwrite (OW) is improved and media signal-to-noise ratio (SoNR) is improved. Alternatively one or both of the laminated ferromagnetic layers can be replaced with an antiferromagnetically (AF) coupled layer structure that has an AFC-master and an AFC-slave layer separated by a spacer layer selected to antiferromagnetically couple the AFC-master and AFC-slave layers.

A magnetic powder consisting of substantially spherical or ellipsoidal particles comprising a transition metal which comprises iron and a rear earth element which is mainly present in the outer layer of the magnetic powder particles, and having a particle size of 5 to 200 nm, a coercive force of 80 to 400 kA / m and a saturation magnetization of 10 to 25 μWb / g.

The invention provides a video recording method and apparatus, and an electronic terminal. The method comprises the following steps: receiving video stream data, and performing decoding playing of a video through a video playing plug-in in a browser page; receiving a trigger for starting recording, and obtaining first image data and first audio data output by the video playing plug-in through thevideo playing plug-in and a data interaction interface of the browser; encoding the first image data and the first audio data to generate second image data and second audio data; and synthesizing thesecond image data and the second audio data into video stream data and storing the data. In this way, the influence of other operations during the video recording on the recorded image is avoided, therecording effect is good, and the obtained video recording resolution is consistent with the definition of the original video source.

The present invention provides an optical information recording medium that includes a substrate including a groove with a track pitch of 200 to 400 nm and a groove depth of 20 to 150 nm and having successively disposed thereon a light reflecting layer, a recording layer containing a dye in which information is recorded by irradiation with a laser beam having a wavelength of no greater than 450 nm, an adhesive layer, and a cover layer with a thickness of 0.01 to 0.5 mm. A surface of the optical information recording medium on a side disposed with the cover layer has a center surface average roughness (SRa1) of no greater than 3.0 nm when measured over a large surface area and a center surface average roughness (SRa2) of no greater than 3.0 nm when measured over a minute surface area.

A perpendicular recording medium having an underlayer structure that improves the microstructural properties of the recording layer. A spacer layer is intercalated between the lower and upper hcp metal layers. This results in improvements in microstructure of the upper hcp metal layer and the recording magnetic layer, which in turn results in gains in recording media performance. Further, the thickness of the upper hcp metal layer can be reduced, thereby reducing the distance between the recording layer and the soft underlayer, providing further gains in recording media performance.

Provided is a thin film magnetic head capable of improving recording performance. The thin film magnetic head comprises a laminate including a main pole layer and an auxiliary pole layer being disposed in a region facing the main pole layer with a non-magnetic layer in between. After magnetic flux generated in a thin film coil is contained in the auxiliary pole layer through the non-magnetic layer, and then is concentrated on a front end neighboring portion of a front end portion in the auxiliary pole layer, the magnetic flux passes through the non-magnetic layer again so as to flow into a front end portion of the main pole layer. A "main magnetic flux incoming route" flowing from a rear end portion to the front end portion in the main pole layer and an "auxiliary magnetic flux incoming route" flowing from the auxiliary pole layer to the front end portion of the main pole layer can be obtained, so an amount of the magnetic flux supplied to a portion of the front end portion of the main pole layer on a trailing side increases. As a sufficient amount of the magnetic flux is supplied to a portion of the front end portion of the main pole layer on the trailing side so that an emitting amount of the magnetic flux increases, thereby a generation intensity and a magnetic field gradient of a perpendicular magnetic field can be obtained.

A perpendicular magnetic recording medium has a multilayer recording layer (RL) structure that includes a ferromagnetic intergranular exchange enhancement layer for mediating intergranular exchange coupling in the other ferromagnetic layers in the RL structure. The RL structure may be a multilayer of a first ferromagnetic layer (MAG1) of granular polycrystalline Co alloy with Ta-oxide, a second ferromagnetic layer (MAG2) of granular polycrystalline Co alloy with Si-oxide, and an oxide-free CoCr capping layer on top of and in contact with MAG2 for mediating intergranular exchange coupling in MAG1 and MAG2. The RL structure may also be a multilayer of an intergranular exchange enhancement interlayer (IL) in between two ferromagnetic layers, MAG1 and MAG2, each with reduced or no intergranular exchange coupling. Because the IL is in direct contact with both MAG1 and MAG2, it directly mediates intergranular exchange coupling in each of MAG1 and MAG2.

The invention is concerned with a kind of high density and implantation plane array microelectrode and its produce method. The said array microelectrode uses polymer as insulated layer material and the leads connects with the electrode activating location or record location of different insulated layers. Produce through hole on the isolation insulated layer and form metal connecting structure in the through hole by plating process to connect the leads with upper and down electrode activating location or record location on the isolation insulated layer. Polishing the upper surface with chemistry polishing after the plating process in order that can keep the well connecting between plating metal pole and upper layer spattering metal layer. This produce method can produce higher density array micro electrode on unit area than the one of common lead setting on single layer to realize the activation or record with higher selectivity to implantation array micro electrode.

The invention relates to a mobile equipment recording method and device, the recording method includes the following steps: adding background music, meanwhile collecting a voice signal; performing volume regulating, fade-in fade-out and delay treatment on the background music, meanwhile performing real-time audio processing on the voice signal; performing sound mixing on the processed background music and voice signal; performing compressed encoding on sound mixed data; and performing editing treatment on the encoded data; the hardware connection way of the recording method is simple, a user finishes speaking, meanwhile a program recording is completed, the time of the program recording is greatly saved, traditional radio program production technical threshold is reduced, program production efficiency is improved, and high quality radio programs can be produced by the general public via mobile devices.

The invention discloses a screen recording device comprising an acquisition board, a synthesized board, an encoding compression board and a file writing module. The acquisition board comprises a computer video acquisition module, a camera video acquisition module, a computer audio acquisition module and a microphone audio acquisition module. Each acquisition module is realized by independent hardware, and needs not to occupy a CPU (Central Processing unit), so the acquisition frame rate is not limited by the processing speed of the CPU, the dynamic video and the transparent pictures can be captured, and the computer voice and the microphone voice can be recorded simultaneously. In comparison with recording just by software, the recording effect is improved, and the recording efficiency is increased.

The invention relates to a piano playing process recording device which can automatically test and emend a transducer. It can automatically record and play piano playing process, test the moment and dynamics of the piano key action by the transducer, and record to form sonic signal, then transform it to voltage signal to store; and wireless tele-operator is used to select and replay the catalogue stored in the piano. The advantage of the invention is that the adaptive ability of the piano sounding recording is better, the distortion is smaller, the sound recording effect is better, and the maintenance is simpler and more convenient.

The invention discloses a multi-target automatic tracking method, which comprises the following steps: A, triggering a teacher tracker, starting face detection tracking, finding a face target in a monitoring region, performing video monitoring and recording according to the face target, and saving images in a characteristic tracking region; B, detecting the number of faces in the monitoring region, repeating the step A if one face exists in the monitoring region, and starting motion target characteristic tracking when over two faces are recognized in the monitoring region; C, finding a cluster point which is most matched with the saved information of the characteristic tracking region in a current image in reference to the information of the characteristic tracking region saved in the step A, determining the location of a target once again according to the cluster point, adjusting the teacher tracker by taking the location of the cluster point as the location of the target, and performing video monitoring and recording on the location of the cluster point.