摘要:
Security information such as fixed or dynamically received camera location information, laser signature information, timestamp information, and network information, may be used to secure the transport and storage of surveillance video. Where the surveillance video is to be transported on a communication network, the round trip time from a video data storage server to the surveillance camera and back to the video data storage server may be monitored and periodically added to the secured video data. By checking to see whether the round trip time has changed, it may be possible to determine whether the video has been tampered with. The secured video data may also be transported over two or more paths on the network to two or more video data storage servers so that redundant copies may be stored at different primary locations. By comparing copies of the data, alteration of one of the copies may be detected.
摘要:
The present invention relates to a straight stem (10) for the implantation into a proximal femur, the stem (10) comprising a proximal stem section (12) and a distal stem section (14), the distal stem section (14) having a distal end (24) and a distal tip (26) arranged directly adjacent to the distal end (24) and defining a distalmost point of the distal end (24), the stem (10) having, in an anterior-posterior view, a medial contour and a lateral contour, and the stem (10) having a straight stem center axis (20) between the medial contour and the lateral contour, wherein the distal end (24), in an anterior-posterior view, has a convexly curved contour, and wherein the convexly curved contour of the distal end (24) merges with straight sections (46, 48) of the medial contour and of the lateral contour at a medial merging point (22) and a lateral merging point (28), respectively, wherein the medial merging point (22) and the lateral merging point (28) are offset with respect to each other in a direction parallel to the stem center axis (20), wherein the lateral merging point (28) is arranged proximally with regard to the medial merging point (22), wherein the convexly curved contour of the distal end (24) is such that the distal tip (26) is medially offset with respect to the stem center axis (20), wherein the convexly curved contour of the distal end (24) has a curved medial section extending between the distal tip (26) and the medial merging point (22) and a curved lateral section extending between the distal tip (26) and the lateral merging point (28), and wherein the contour of the distal end (24) is asymmetrically convexly curved such that the degree of curvature of the curved lateral section is smaller than the degree of curvature of the curved medial section.
摘要:
Security information such as fixed or dynamically received camera location information, laser signature information, timestamp information, and network information, may be used to secure the transport and storage of surveillance video. Where the surveillance video is to be transported on a communication network, the round trip time from a video data storage server to the surveillance camera and back to the video data storage server may be monitored and periodically added to the secured video data. By checking to see whether the round trip time has changed, it may be possible to determine whether the video has been tampered with. The secured video data may also be transported over two or more paths on the network to two or more video data storage servers so that redundant copies may be stored at different primary locations. By comparing copies of the data, alteration of one of the copies may be detected.
摘要:
This invention provides a system, method and apparatus for managing congestion on heterogeneous network communication links, the first communication link and second communication link being heterogeneous with respect to each other. The system, method and apparatus including a routing decision module, the routing decision module evaluating a queue of information packets scheduled for transmission across the first communication link to determine whether to generate a command signal to route a portion of information packets over the second communication link. The system, method and apparatus may further include a communication link threshold module, the communication link threshold module storing threshold limit values corresponding to a first communication link technology of the first communication link.
摘要:
The present disclosure relates to devices and methods for verifying compatibility between cooperating parts of a joint prosthesis. The compatibility between the cooperating parts is with respect to at least one articulation parameter.
摘要:
A method and apparatus for detecting objects has a sensor with a light source, a light receiver, and a light retroreflector between them. Light from the source is transmitted to the detector along a light transmission path from the source to the retroreflector and is reflected back to the detector along a light reflection path that substantially corresponds to the transmission path. A single lens or a pair of adjacent lenses shapes the respective light beams from both light emitted by the source and light reflected by the retroreflector in accordance with either the auto collimation principle or the double-eye principle, respectively. A polarizer and a beam splitter are arranged in the light transmission path for light from the source, and a polarization filter is arranged in the light reflection path so that light reflected by the retroreflector passes through the beam splitter and the polarization filter before it reaches the light receiver. A control unit recognizes an interruption of at least one of the light beams as the detection of an object in the light transmission and/or light reflection paths. The beam splitter is a dielectricum which has differing transmission and reflection characteristics for p-polarized light and s-polarized light.
摘要:
The invention provides for a system, method, and device for using the existing copper loop plant of twisted pair wiring for data communication by using a plurality of pairs in a cable bundle of twisted pair for the downstream data direction simultaneously, as if the plurality of twisted pair in the cable bundle were a broadcast medium. Between an individual subscriber's access pair and the cable bundle, an aggregation device is used to combine all received signals from the plurality of twisted pairs in the cable bundle and to make the entire downstream bandwidth of the plurality of pairs available to the subscriber.
摘要:
A central office line card with distributed signaling voltages comprised of a plurality of subscriber line interface circuits connected to a common signal bus. Standard ringing signal is received from a remote generator within the central office and applied to the common signal bus via a first relay. A receptacle is provided on the line card for receiving a removable module containing circuitry for generating further signaling voltages such as party line ringing and coin telephone test and control voltages. Signals from the module are applied to the common signal bus via a further plurality of relays. Each of these subscriber line interface circuits is connected to the common signal bus via additional respective relays.
摘要:
A compensation circuit for use with an integrating amplifier having an integrating capacitor connected between an input and output thereof. The integrating amplifier monitors an input signal and generates an integrated output signal in response thereto. The compensation circuit detects sudden variations in the input signal and in response momentarily discharge the integrating capacitor, thereby increasing responsiveness of the integrating amplifier in the event of sudden input signal variations.
摘要:
The invention provides for a system, method, and device for using the existing copper loop plant of twisted pair wiring for data communication by using a plurality of pairs in a cable bundle of twisted pair for the downstream data direction simultaneously, as if the plurality of twisted pair in the cable bundle were a broadcast medium. Between an individual subscriber's access pair and the cable bundle, an aggregation device is used to combine all received signals from the plurality of twisted pairs in the cable bundle and to make the entire downstream bandwidth of the plurality of pairs available to the subscriber.