282 results about "Black hole" patented technology

The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes incorporating the BHQs and methods of using the probes.

An optical system used in a barcode scanner is disclosed to include a light source for emitting a dot-shaped light beam in a slanting angle, a standing cylindrical lens for expanding the dot-shaped light beam produced by the light source as a line-shaped light beam onto a barcode of a product in a slanting angle, which line-shaped light beam showing a light intensity distribution curve that is asymmetric between the left side and the right side, a linear sensor array, and a focusing lens for focusing a reflective image of the barcode onto the linear sensor array. A reflector means can be provided for overlapping the light path to reduce the size of the barcode scanner. Further, a shaking means may be used to cause reciprocation of the light beam in direction perpendicular to the light path of the light source, thereby eliminating image noises due to existence of black holes.

A system and method for aiding the handling of DDoS attacks in which VPN traffic entering an ISP network at some points will be black-holed, while VPN traffic entering the ISP network at other points will be routed, as it should be, to the system-under-attack. Thus, the system-under-attack is made available to some of the user community and made unavailable to suspect portions of the user community. Furthermore, the number of entry points where black-holing of VPN traffic occurs can be selected and changed in real-time during a DDoS attack.

The invention discloses an intelligent illuminating method and an intelligent illuminating device for road tunnels. The method comprises the following steps that: natural light brightness information outside the tunnel is acquired by a sensor; the acquired information is sent to a central controller; the central controller sends a brightness adjusting instrument to lamps according to the received information; a lamp controller is mounted on each tunnel lamp; illuminating brightness information of the corresponding tunnel road section is acquired by the sensor; and the lamp controller integrates the acquired information with the brightness control instruction sent by the central controller for adjusting the illuminating brightness of each tunnel lamp so that the illuminating brightness can meet the illumination requirements and the illuminating brightness of each illuminating section in the tunnel is adjusted. By the invention, a black-hole effect and a white-hole effect at the exit and entrance of the tunnel are eliminated; the problems of excessive illumination and unavailable illumination of the tunnel lamp in the tunnel are solved; the traffic safety on the pavement is improved; the lamp consumption is reduced; and the operation and maintenance cost of the tunnel is reduced.

The invention discloses an automatic passenger and driving safety alarm device based on intelligent voice recognition. The voice data in a vehicle are collected in real time through a multi-path microphone pickup circuit, the device collects audio data in the vehicle in real time, and the audio is subjected to amplification filtering and voice extraction after preprocessing, and real-time communication is carried out with the cloud background through a wireless communication module. The invention further provides an automatic passenger and driving safety alarm method based on intelligent voicerecognition. The voice data are subjected to preprocessing and then are sent for feature extraction, the voice is transmitted to an acoustic model for comparison. If the voice falls into the alarm preset sensitive words, the alarm text information is output to the background, and the background is fed back to an online ride-hailing platform, so that the abnormal situation can be immediately processed. The safety supervision black hole of current online ride-hailing is reduced. The life and the safety of people in the vehicle can be guaranteed, voice communication can be directly carried out with a party involved, and illegal criminals of online ride-hailing can be effectively reduced.

Remote routers are configured to block the return path to malicious websites with the use of split tunneling while allowing paths to third party resource websites. The iBGP protocol runs on the agent's router, advertises routes and enables the head-end to set up a policy at each remote router. Enterprise policies for blocking access to “blackholed” website addresses are centrally administered but third party website traffic is not routed to the enterprise's network resources. Since remote offices may connect directly to third party websites, latency is minimized and network resources at the enterprise are not unduly burdened.

The present invention provides a family of dark quenchers, termed Black Hole Quenchers (“BHQs”), that are efficient quenchers of excited state energy but which are themselves substantially non-fluorescent. Also provided are methods of using the BHQs, probes incorporating the BHQs and methods of using the probes.

The invention relates to a method for designing a shading transition facility for a road tunnel entrance. The facility mainly comprises transparent toughened glass plates (2), a plurality of arched steel-structure upright columns (3), cicada-wing-shaped nontransparent shading films (5) and a shading transition retroreflection system, wherein the arched steel-structure upright columns (3) are gradually heightened outwardly from tunnel cave entrance end walls (1), and horn-shaped openings are formed by the arched steel-structure upright columns (3) and the transparent toughened glass plates (2) on the upright columns; the cicada-wing-shaped nontransparent shading films are arranged on inner layers of the transparent toughened glass plates, and contour line planes and side face projections of the shading films are Boltzmann curves, and the two sides of each arched steel structure are triangularly hollowed; the retroreflection system comprises medium-frequency steel-structure upright column contour marks (7), medium-frequency guardrail contour marks (8), high-frequency guardrail facade marks (9), high-frequency pavement marking lines (10) and high-frequency pavement protrusion marks (11). The shading transition facility has the advantages that the intense transition of space, luminance and reference of the tunnel entrance can be improved, and the black-hole effect on the tunnel entrance is relieved.

Enterprise communication display systems enable life-like images for videoconferencing and entertainment productions. Life-like images appear in a 3D environment where imaged people are visible through the use of specially configured see-through displays. Imaged people can also be viewed amongst a reflected foreground. A dual mode large high-resolution display is inventively configured for watching and working. Methods for enterprise wide deployments for corporate, healthcare, education, and government communications, including hotel properties and a property management system are shown. The invention further discloses an online production system for events. Further, a black void illusion is described and is applicable to numerous displays including event and live theater stages and movie theaters. Numerous inventive features are described enabling and advancing the black void illusion.

The invention provides a polysilicon solar battery piece appearance contamination defect detection method. The method mainly comprises two steps, wherein the first step comprises pretreatment of a battery piece and acquisition of an interested region, and the subsequent operations are performed by taking the first step as the foundation; and the second step comprises recognizing and marking of thecontamination regions. Pretreatment comprises the steps of dividing collected three-channel images into R channel images, G channel images and B channel images, and selecting the R channel images with relatively high defect and background comparison degree for performing subsequent treatment; performing smoothening treatment on the selected R channel images, suppressing interference from image noise and high frequency components, next, performing rotary correction operation on the images, enabling the image edges to be parallel to a coordinate system, next, performing fixed threshold value image cutting, setting upper and lower critical values according to the area, and removing interference from a conveyor belt region on the image processing; and next, performing morphology closed-loop operation on the images, removing small sized black holes generated by insufficient threshold value cutting, and finally realizing polysilicon solar battery piece appearance contamination defect detection.