39results about How to "Avoid serious distractions" patented technology

The invention provides a method for changing up and down TDD (Time Division Duplexing) configuration. The method comprises the steps that user equipment measures interference of user equipment in an adjacent cell to the user equipment and reports the interference situation to a base station, and the base station changes the current up and down TDD configuration according to the interference situation reported by the user equipment and the current up and down service requirements. The method meets the requirement of the dynamically changing up and down service load under the condition that the serious interference between the adjacent cells is not caused.

A method and system for incorporating voice commands into the interactive process of image segmentation. Interactive image segmentation involves a user pointing at an image; voice commands quicken this interaction by indicating the purpose and function of the pointing. Voice commands control the governing parameters of the segmentation algorithm. Voice commands guide the system to learn from the user's actions, and from the user's manual edits of the results from automatic segmentation.

The invention discloses a device and a method for measuring water turbidity degree by utilizing a water sound attenuating frequency spectrum. The device comprises a circuit box, display equipment, cables, a transmitting energy converter, a receiving energy converter, an ellipsoidal cavity and a T-shaped passage, wherein the circuit box is respectively connected with the transmitting energy converter and the receiving energy converter through the cables; the T-shaped passage is arranged in the ellipsoidal cavity; the transmitting energy converter and the receiving energy converter are respectively positioned at two focal points of the ellipsoidal cavity; the cables are arranged in the T-shaped passage; both transverse ends of the T-shaped passage are provided with sealing pieces; the transmitting energy converter and the receiving energy converter are respectively arranged at the both transverse ends of the T-shaped passage, and the vertical end of the T-shaped passage is connected to the bottom end of the ellipsoidal cavity and is provided with a wire hole used for educing the cables. The invention enhances the precision of turbidity degree measurement, adopts the ellipsoidal cavity and respectively places the transmitting energy converter and the receiving energy converter at the two focal points of an ellipsoid to achieve same transmission paths of water sounds, thereby overcoming the multipath time-delay effect.

The invention provides a stepless adjustable active DTV digital television amplifier with display and timing functions. The amplifier is connected between an antenna and a coaxial cable, aims to adjust the amplification factor of the amplifier and detect and display the amplification factor of the amplifier, and is characterized by comprising an LNA amplification unit, an electrodeless adjustmentunit and a gain detection and display unit; the LNA amplification unit is provided with a source end, a radio frequency input end and a radio frequency output end, the source end is connected with a direct current source, the radio frequency input end is used for being connected with an antenna, and the radio frequency output end is used for being connected with a coaxial cable; the stepless adjusting unit comprises a potentiometer connected with a direct current source, and the output end of the potentiometer is connected to the source end of the LNA amplifying unit so as to provide bias voltage. The gain detection and display unit comprises a control chip, a display drive circuit and a display screen, and the control chip is connected to the stepless adjustment unit to collect real-timevoltage and display the magnification times corresponding to the real-time voltage on the display screen.

The invention relates to a system and a method for transferring multimedia broadcasting service. The system comprises a control center, at least one mutually separate synchronous transmission unit and user equipment, wherein each synchronous transmission unit comprises a main service wireless network controller, a standby service wireless network controller and at least one drifting wireless network controller. The method includes the steps that the main service wireless network controller detects the self working state; the main service wireless network controller and the standby service wireless network controller corresponding to the main service wireless network controller are shifted when a failure happens; and the standby service wireless network controller builds up a bearing relationship and substitutes the main service wireless network controller to process and send the content of the multimedia broadcasting service. The system and the method can be widely applied to a generation three mobile communication system.

The embodiments of the invention disclose a complex environment-based voice signal positioning method, device and system. The method includes the following steps that: echo cancellation processing isperformed on at least two paths of expected signals according to loudspeaker reference signals, so that at least two paths of first residual signals are acquired; echo suppression processing is performed on each path of first residual signals of the at least two paths of first residual signals according to a preset echo suppression transfer function, so that at least two paths of second residual signals can be obtained; noise suppression processing is performed on each path of second residual signals of the at least two paths of second residual signals according to a preset noise suppression transfer function, so that at least two paths of third residual signals are obtained; and when it is determined that ambient sound is in a voice state at present according to the at least two paths ofthird residual signals, voice signals in an environment are located. In this way, the interference of non-target speech state signals on sound source positioning is reduced, the accurate positioning of a sound source is realized, and the robustness of the positioning of the sound source is improved.

The invention discloses a method which aims at implementing capacity planning over different machine types to OLTP applications and includes: executing flexibility evaluation of the OLTP application to determine whether the OLTP application has flexibility problem; if the method determines that the OLTP application does not have flexibility problem, a performance comparison test is executed amongdifferent machine types to acquire the running performances of the different machine types; computing performance ratio among the different machine types according to the acquired running performances of the different machine types; acquiring the performance values of various machine types in different series, which is necessarily based on the performance ratios among different machine types acquired from the performance comparison test, and the acquired performance values are input into a parameter database for capacity planning, consequently a new parameter database for capacity planning isformed, and performance comparison and performance prediction can be implemented over different machine types; furthermore, the new parameter database for capacity planning can be used by a modeling method for capacity planning and a capacity planning tool to implement capacity planning over different machine types which aims at the OLTP application.

The invention provides a rapid detecting device of heavy metal arsenic. The rapid detecting device comprises a first pre-treatment module, a second pre-treatment module, a color developing module and a comparative analysis module, wherein pentavalent arsenic is reduced into trivalent arsenic in the first pre-treatment module under an acidic condition by using a reducing agent; the trivalent arsenic is reduced into arsenide hydrogen gas by using a reducing agent in the second pre-treatment module; the arsenide hydrogen gas is enabled to be in contact with test paper dipped by mercury bromide in the color developing module so as to display brown color spots; the comparative analysis module is used for comparing by utilizing a photometer so as to complete detection. The rapid detecting device provided by the invention is high in sensitivity, small in error and strong in anti-jamming capability.

A time division duplex wireless communication system based on Code Spreading-Orthogonal Frequency Division Multiple Access (CS-OFDMA) and a smart antenna includes: an antenna array and multichannel transceiver, a space processor, a demodulator, an L2 processor and a modulator. The CS-OFDMA system provided by the present invention combines synchronous CDMA technique and OFDMA technique, overcomes the severe ISI caused by spectrum-spreading by the conventional CDMA system while transmitting wideband data, effectively counteracts frequency-selective fading and inter-cell interference, and is beneficial to reliable transmission of narrowband voice and wideband data and also beneficial to co-frequency networking.

The invention discloses a same-frequency full-duplex scheduling method and device, wherein the method includes: calculating the priority value of downlink users according to a scheduling algorithm, and allocating resources to certain downlink users; Find the uplink user with the sum of the highest priority value on the resource and the determined downlink user, and obtain the sum of the highest priority value; traverse other downlink users on the resource, and select the user with the highest priority among the determined downlink user and other downlink users Uplink and downlink user combinations of the sum of level values. The present invention considers the interference of uplink users to downlink users and according to the proportional fairness principle of downlink and uplink, selects the user combination with the largest sum of uplink and downlink PF values, and effectively overcomes the interference of uplink signals to downlink signals in the same-frequency duplex transmission process. severe interference, ensuring the transmission quality of uplink and downlink data.

The invention discloses a seismic attenuation estimation method, system, equipment and storage medium based on sparse S transformation and adaptive logarithmic spectral ratio method, belonging to the research field of exploration geophysics. The invention uses sparse S transformation to solve the time spectrum of seismic data , compared with the traditional S transform, the time spectrum energy is more concentrated, which is beneficial to improve the accuracy of the Q value estimated by the logarithmic spectral ratio method; the present invention introduces an adaptive frequency band selection method, which avoids the artificial influence that may be caused by manually selecting the frequency band range. , which improves the reliability of the Q-value estimation results. Secondly, the invention uses sparse S transform, which has a certain inhibitory effect on noise, which makes it possible to avoid serious interference of noise when extracting the spectrum at the upper and lower layers of the target area and use the logarithmic spectral ratio method to estimate the Q value, and improves the Noise immunity of Q-value estimates.