摘要:
A mobile station communicates with an access point (AP). The mobile station includes a low noise amplifier (LNA) path, a power amplifier (PA) path, a switch to select the LNA path or the PA path, and a controller directing the switch. The controller estimates amplifying power of the LNA, transmitting power and a sensitivity threshold of the PA. The controller receives a current received signal strength indication (RSSI) value of the AP. The controller determines whether amplifying power of the LNA path exceeds the PA sensitivity threshold. The controller transmits a selection signal directing the switch to select the LNA path if the amplifying power of the LNA path exceeds the sensitivity threshold of the PA.
摘要:
Passive RFID devices are disclosed that perform image recognition. The device includes an antenna, circuitry, and a camera. The antenna receives a radio frequency (RF) signal from a RFID reader. The circuitry stores image data for objects that is used for image recognition. To operate, the circuitry derives power from the RF signal. With the power derived from the RF signal, the camera captures an image. The circuitry then identifies an object in the captured image based on the image data for the objects, and outputs information for the identified object, such as to the RFID reader.
摘要:
This invention discloses a multi-pitching angle suspended space 3D display device with 360° FOV, comprising: a transmitted composite deflective diffusing screen, a high speed projector, an image generator, a detecting module and a rotating drive mechanism. The high speed projector projects the composite images of the 3D objects of different pitching angles and horizontal 360° views to the composite deflective diffusing screen that rotates at a high speed. The composite deflective diffusing screen is able to control the vertical deflecting and scattering angles and horizontal diffusing angle for incident rays with different angles, allowing the surrounding viewers at different height levels to see the images corresponding to their viewpoints, making the displayed 3D objects suspended over the composite deflecting scattering screen, of which the position does not change as the height of the viewpoint changes. The multi-pitching angle suspended space 3D display device with 360° FOV allows watching by multiple persons at multiple pitching angles and horizontal 360° FOV in naked eyes, realizing space occlusion, exploration and interaction.
摘要:
A system and method for applying a pre-existing physical seal authorization to documents provides for authentication of electronic documents using physical seals and without interrupting the electronic workflow. The system of the present invention includes a seal capture device coupled to a computer, and the computer coupled by a network to a paper-like document server. The seal capture device detects depression of a seal thereon and outputs the image of the seal and other metadata to the computer. The computer stores the metadata in its local log using a logging module. The computer also adds the image of the seal and other metadata to the electronic document being displayed. Finally, the computer sends the metadata for storage in the global log of the paper-like document server, and the authorized document to the next step in the electronic workflow. The paper-like document server stores the metadata in other servers or entangles the global log with the logs of other servers for additional security.
摘要:
A broadband dual-polarized omni-directional antenna and a feeding method using the same are provided. By setting a vertically polarized antenna and a horizontally polarized antenna each in co-axial, the horizontally polarized antenna is attached to an upper surface and a lower surface of the attaching plate respectively by two arms of a folded dipole and the two arms connect to an inner conductor and an outer conductor of a feed line so that the dual-polarized antenna may have a comparatively broad bandwidth. At the same time, since the dual-polarized ceiling antenna has a good isolation effect and coverage balance, it may work as the MIMO antenna in the LTE and WLAN systems effectively and may be used in the 2G and 3G networks to improve the data transmission rate.
摘要:
This invention discloses a combined-screen-based multi-pitching angle suspended panoramic space 3D display device comprising: a combined deflective diffusing screen, a high speed projector, an image control module, a rotation detecting module, a motor and a drive mechanism. The high speed projector projects the composite images of the 3D objects of different pitching angles and horizontal 360° FOV to different areas of the combined deflective diffusing screen. Each area of the combined deflective diffusing screen controls the deflecting angle and the scattering angle in the vertical direction and the diffusing angle in the horizontal direction, ensuring that the eyes of the surrounding viewers of different height levels can see the 3D images corresponding to their respective positions, representing the 3D scene suspended over the combined deflective diffusing screen. The multi-pitching angle suspended panoramic space 3D display device provided in this invention allows watching by multiple persons at multiple pitching angles and horizontal 360° FOV in naked eyes, realizing space occlusion, allows exploration and interaction.
摘要:
User quality of experience in a real time communication system is determined by analyzing endpoint performance metric reports correlated with performance factors of each endpoint in an endpoint profile for a more complete view of an audio/video quality of experience. Reports may include endpoint profile reports, which may be sent once at the beginning and then again only if an endpoint attribute changes; session reports, which include measured metric information and are sent at the conclusion of each session; and session interval reports, which also include metric information, but are sent during the session based on a period or a predefined threshold.
摘要:
The example embodiments herein relate to an antivirus protection system and method for computers based on program behavior analysis. The antivirus protection system may comprise: a Process Behavior-Evaluating Unit for identifying the programs existing in the user's computers and classifying them into normal programs and suspect programs; a Program-Monitoring Unit for monitoring and recording the actions and/or behaviors of programs; a Correlation-Analyzing Unit for creating correlative trees and analyzing the correlations of actions and/or behaviors of programs, the correlative trees comprising a process tree and a file tree; a Virus-Identifying Knowledge Base, comprising a Program-Behavior Knowledge Base and a Database of Attack-Identifying Rules; a Virus-Identifying Unit for comparing captured actions and/or behaviors to the information in the Virus-Identifying Knowledge Base to determine whether the program is a virus program. With the techniques of certain example embodiments, it may be possible to increase efficiency and reduce the need to upgrade virus codes after viruses become active, while also effectively blocking unknown viruses, Trojans, etc.
摘要:
The present invention provides a family of novel cytotoxic pentapeptides, which show potent antitumor activities against several cancer lines. The antibody-drug conjugates prepared from those pentapeptides can efficiently kill cancer cells.
摘要:
A broadband dual-polarized omni-directional antenna and a feeding method using the same are provided. By setting a vertically polarized antenna and a horizontally polarized antenna each in co-axial, the horizontally polarized antenna is attached to an upper surface and a lower surface of the attaching plate respectively by two arms of a folded dipole and the two arms connect to an inner conductor and an outer conductor of a feed line so that the dual-polarized antenna may have a comparatively broad bandwidth. At the same time, since the dual-polarized ceiling antenna has a good isolation effect and coverage balance, it may work as the MIMO antenna in the LTE and WLAN systems effectively and may be used in the 2G and 3G networks to improve the data transmission rate.