70 results about "Frequency effect" patented technology

The invention relates to a high-speed calculation correlated imaging system and method based on a preset modulatable light source.The imaging system comprises the light source, an electro-optical modulator array modulating system, a single-point light intensity detector, a data collecting module and a data synchronizing and processing module; the electro-optical modulator array modulating system is used for performing random binary intensity modulation on light emitted by the light source to form a light field with intensity distributed in a random fluctuation mode in free space; the single-point light intensity detector is used for detecting total light intensity obtained after the light field is reflected or transmitted by a target object to be detected and converting the total light intensity into electric signals related to the total light intensity; the data collecting module is used for obtaining the electric signals and obtaining total light intensity fluctuation information, the data synchronizing and processing module is used for controlling data synchronization between the electro-optical modulator array modulating system and the data collecting module and then conducting correlation calculation to obtain an image of the target object to be detected.The electro-optical modulator array modulating system is used for modulating light, the modulation speed is high, the refreshing frequency effect of the preset light source is improved, the refreshing frequency is at least improved to megahertz order, and imaging result and imaging quality are improved.

A multilayered chip capacitor (MLCC) includes internal electrodes and external electrodes formed to be perpendicular to the internal electrodes, whereby parasitic capacitance is reduced, resulting in no parallel resonance frequency effects. In addition, the MLCC has a capacitor structure, which provides a first surface and a second surface formed in a stacking direction of the dielectric layers in the capacitor body as a top surface and a bottom surface. Hence, in the thin capacitors having the same size, the number of internal electrode layers is increased, thereby reducing the equivalent series resistant (ESR) and equivalent series inductance (ESL). Further, the printed circuit board (PCB) having an embedded MLCC is easily manufactured.

Acoustic sensing utilizing a cantilever structure coupled about at least one side of said cantilever to a base substrate, wherein said cantilever includes a piezoelectric section and has at least one acoustic wave device on a portion of the cantilever, wherein a flexure of the cantilever produces force-frequency effects measurable by the acoustic wave device. According to one embodiment, the cantilever sensor uses the flexure-frequency effect as measured by an acoustic wave device to sense a target matter. According to one embodiment, a sensing material is disposed on at least a portion of at least one surface of the cantilever.

The invention relates to a terahertz radiation source based on intracavity optical parameters and a difference frequency effect. The terahertz radiation source comprises a pump light source, a first KTP crystal 9, a second KTP crystal 10 and a periodically poled crystal 12. The pump light source is an optical parametric oscillator composed of the two KTP crystals, two beams of difference frequency light are generated and enter the periodically poled crystal 12, and terahertz waves are generated in a difference frequency light resonant cavity on the basis of the optical difference frequency effect. The two beams of difference frequency light can each serve as pump light to motivate the periodically poled crystal 12, a cascaded optical parameter effect occurs in the difference frequency light resonant cavity, and the terahertz waves are generated. In the whole terahertz wave generation process, the difference frequency light can motivate the periodically poled crystal 12, and the terahertz waves are generated under the cascaded optical parameter effect; one pump photon can generate multiple terahertz photons, and terahertz wave output energy and optical conversion efficiency are effectively improved.

The invention provides a method for implementing multi-azimuth electromagnetic wave low-frequency conversion by using a Dirac point difference frequency effect. A beam of waves with Dirac point frequency illuminates a photonic crystal array along the vertical direction; another beam of waves without Dirac point frequency penetrates in the photonic crystal array along different directions and is in a transmission state; the two beams of waves are superposed in the photonic crystal array so that difference frequency oscillation is caused; light wave energy is re-distributed; two beams of waves are converted into two beams of low-frequency signals with the same frequency along different azimuths under the effect of a difference frequency effect; and the two beams of low-frequency signals are transmitted outwards. By the method, the difference frequency effect is achieved by two beams of high-frequency incident light coming from different azimuths creatively, multi-azimuth low-frequency outgoing waves with the same frequency are obtained, and a machining process is simplified. The method has the advantages of low loss, low cost, high conversion efficiency, easiness and convenience in operation and the like, and is suitable for performing low-frequency oscillation conversion on any materials with Dirac point characteristics. Electromagnetic waves and sound waves which correspond to photonic crystal energy band structures are in a frequency conversion range.

A method for adding sound effect process function of a Bluetooth stereo device is provided in the present invention, adding a digital signal process technology to the Bluetooth stereo device and adding a sound effect process module for processing stereo sound source series flow, adding special sound effect series flow into the form of the sound source series flow after subband coding (Subband coding, SBC) decoding received by the Bluetooth stereo device, sound effect process function containing super bass process function, sound effect simulating various sound fields and process function of the dynamic equalizer, wherein the super bass process bases on using human ear lost basic frequency effect, and the simulating various sound fields bases on the rebound of sound in space, sound positioning process technology and sound effect simulating technology etc., leading the stereo sound effect to be perfect while process sound effect process.

A system and method for relieving high blood sugar factor of diabetes includes an electric energy wave generator with a frequency effect level control mode. The frequency effect level control mode includes a control of a single frequency effect period and a control of a multi-frequency modulation effect period and controls and emits a single frequency electric energy wave to a diabetic patient's body in the single frequency effect period according to the frequency effect level control mode and controls and emits a multi-frequency electric energy wave in a multi-frequency modulation effect period, so as to reduce and eliminate a high blood sugar factor of the diabetic patient's body by the electric energy wave.

The invention discloses a crystalless metering SoC chip and a clock acquisition method thereof. The method comprises: receiving training bytes sent by an external main control MCU through a serial port UART; Count the time interval Tref between two falling edges to obtain the count value Nrc; use Fideal and Nrc to calculate the estimated baud rate Fibaud of the training byte sent by the external master MCU, and obtain the training byte sent by the external master MCU by looking up the table The actual baud rate Fbaud, the time interval Tref is obtained according to Fbaud; the actual clock frequency Frc of the RC clock module is calculated by using Nrc and Tref, and the clock frequency of the RC clock module is adjusted according to the difference between Frc and the preset clock frequency Fideal to obtain the RC clock The adjusted clock frequency Frcc of the module. The method realizes that the crystal-free metering SoC chip itself can obtain the clock frequency without using an external crystal to provide the clock frequency, thereby reducing the system cost and improving the reliability of obtaining the clock frequency.