33 results about "Coupled pulse" patented technology

A biased pulse DC reactor for sputtering of oxide films is presented. The biased pulse DC reactor couples pulsed DC at a particular frequency to the target through a filter which filters out the effects of a bias power applied to the substrate, protecting the pulsed DC power supply. Films deposited utilizing the reactor have controllable material properties such as the index of refraction. Optical components such as waveguide amplifiers and multiplexers can be fabricated using processes performed on a reactor according to the present inention.

A surface wave plasma (SWP) source couples pulsed microwave (MW) energy into a processing chamber through, for example, a radial line slot antenna, to result in a low mean electron energy (Te). To prevent impingement of the microwave energy onto the surface of a substrate when plasma density is low between pulses, an ICP source, such as a helical inductive source, a planar RF coil, or other inductively coupled source, is provided between the SWP source and the substrate to produce plasma that is opaque to microwave energy. The ICP source can also be pulsed in synchronism with the pulsing of the MW plasma in phase with the ramping up of the MW pulses. The ICP also adds an edge dense distribution of plasma to a generally chamber centric MW plasma to improve plasma uniformity.

The present invention relates to a method and an apparatus to perform frequency comb spectroscopy. The method includes: —Arranging a waveguide optical cavity (3) having a plurality of cavity mode frequencies with a cavity mode frequency spacing (FSR), said waveguide optical cavity being dispersive so that the frequency spacing of the cavity modes is wavelength dependent; —Arranging a sample (S) with respect to the waveguide optical cavity (3) so that the sample is capable of absorbing light travelling into the waveguide optical cavity; —Coupling pulsed light coming from a light source (1) into the waveguide optical cavity (3), the source light including source comb frequencies (OCF) with a source frequency spacing (RR), the coupled light including an interval of frequencies centered on a main frequency of said comb frequencies due to cavity dispersion; —Locking the waveguide optical cavity to the frequency comb at said main optical frequency; —Detecting transmitted cavity frequencies; —Determining absorption by said sample (S) of said main optical frequency from the detected transmitted frequencies, —Changing the cavity mode frequency (FSR) spacing or the source frequency spacing (RR); —Coupling the pulse light to the waveguide optical cavity (3), the coupled light including an interval of frequencies centered on a second main frequency of said comb frequencies due to cavity dispersion; —Locking the waveguide optical cavity to the frequency comb at said second main optical frequency; —Detecting transmitted cavity frequencies; —Determining absorption by said sample of said second main optical frequency from the detected transmitted frequencies.

The invention relates to an on-board ultrasonic testing system for a test object (3), comprising an ultrasonic generator (1, 9), an ultrasonic receiver (2), a control arrangement for controlling both, and for displaying the A computer-aided test result interface of an image of a test object (3). In an air-coupled or gas-coupled pulse-echo arrangement or in an air-coupled or gas-coupled transmission-mode arrangement, the ultrasound generator (1) is a non-resonant thermoacoustic ultrasound generator that does not rely on mechanically deformable or oscillating components, The ultrasound receiver (2) is a membraneless and non-resonant optical microphone. With this test system it is possible to test test objects with high precision without the need for liquids and without disturbing ringing effects.

The invention relates to a face recognition method based on a PCNN model, in particular to a block face recognition method based on a weighted strength PCNN model. It solves the problem that the image feature description in the existing face recognition method based on the PCNN model is not detailed enough and uses a set of parameters to process the entire face image indiscriminately, ignoring the different parts of the face. On the basis of simplifying the PCNN model, the present invention proposes a weighted strength PCNN model, introduces the concepts of spontaneous pulse emission strength, coupling pulse emission strength and weighted strength, and refines the output of the model. At the same time, block recognition is used for face recognition. Before recognition, the face image is divided into blocks according to the difference in the gray distribution of each part of the face image and the difference in the local recognition rate. When performing face recognition, the weight of the block will be adaptively set according to the block image; the final recognition result of a face image will synthesize the recognition results of each block.

A testing apparatus (100) that tests the operation of a driving apparatus (200), the driving apparatus being an external apparatus, is provided with: a display control unit that displays, on a screen (10), a virtual manual pulse generation device (103b) that generates a pulse signal according to a rotational amount; and a data transmission unit that calculates the number of pulses of the pulse signal based on the rotational amount of the operated virtual manual pulse generation device (103b) every first period of time, that accumulates pulse-number data, which is obtained by adding time information to the number of pulses calculated every first period of time, for a second period of time longer than the first period of time, and that transmits a plurality of sets of pulse-number data accumulated for the second period of time, as one combined pulse-number data set, to the driving apparatus (200) every second period of time.