摘要:
A method of facilitating multimedia broadcast multicast services (MBMS) in a communications network including one or more first evolved node Bs (eNBs) having backhaul interfaces for a first internet protocol (IP) version and one or more second eNBs having backhaul interfaces for a second IP version includes receiving, at a first network element, an initial MBMS content stream; generating, at the first network element, based on the initial MBMS content stream, a first MBMS content stream and a second MBMS content stream; transmitting the first MBMS content stream from the first network element to the one or more first eNBs using a first IP multicast address of the first IP version; and transmitting the second MBMS content stream from the first network element to the one or more second eNBs using a second IP multicast address of the second IP version.
摘要:
A new 35 mm motion picture film is described which minimizes the amount of film stock that is used, and which facilitates industry acceptance by assuring at least present image quality. The new motion picture format (12) has film frames (20) of a size (22, 24) that is slightly greater than that (J, K) of the mask aperture (H) of the current Wide Screen Academy Format. However, the film frames are spaced by a distance (26) that is more than two but less than three times a standard perforation spacing distance (E). The film stock can be different from current film stock, with a perforation spacing distance (48, 68) that results in 2 or 3 perforations per frame.
摘要:
A method is described for producing Cinemascope-type motion picture images that have a large aspect ratio (e.g. 2.35 to 1), which enables their high quality projection using moderately priced projection lenses, which produces a steadier projected image, and which increases the life of the release print while reducing its cost. A scene is photographed in the prior art manner, using an anamorphic lens to produce 50% horizontally compressed anamorphic camera film frame images (aspect ratio of about 1.175 to 1). During processing to produce a release print, another anamorphic lens is used to produce 36.5% vertically compressed anamorphic release print film frame images (aspect ratio of 1.85 to 1) of the camera film images. An anamorphic projection lens is used in a motion picture theater to horizontally expand the projected images by about 27% (to an aspect ratio of 2.35 to 1). The fact that the anamorphic projector lens horizontally expands the image by only 27%, instead of the 100% of the prior art, enables the projection of extremely sharp and undistorted images on a screen, using a moderately priced anamorphic lens. The fact that the release prim images have been vertically compressed, results in their convenient use in current projectors, in the use of less film for each release print, in a longer lifetime of use for each release print, and in a steadier image. Each release print film frame occupies 2.5 perforations instead of 4, which results in a steadier projected image.
摘要:
Systems are described for precisely positioning motion picture film frames at a camera film gate by the use of registration pins that project into film perforations, where the film frames are spaced by 2.5 perforation spacings, or perf spacings instead of the standard 4 perforations. In one system, the film is advanced a first time in steps of 5 perf spacings each to photograph alternate perf spacings film frames, (that are spaced by 2.5 perf spacings) perf spacings with the film gate mask being offset by 0.5 during a second pass when the film is advanced in steps of 5 perf. spacings each. In another system, the registration mechanism includes two sets of registration pins which are alternately projected into alternate film frames as the film is advanced in steps of 2.5 perf spacings. In another system, additional holes are punched into the standard film stock, so there are holes or perforations located at 2.5 perf. spacings along the length of the film.
摘要:
An apparatus for heating water, especially a hot-water boiler. The apparatus has a combustion chamber and two or more heat exchangers that are disposed one above the other. The heat exchanger disposed in the bottom of the apparatus is associated with a condensation chamber. In order to be able to operate this heat exchanger without water, and to be able to raise the efficiency of the apparatus as a whole, the heat exchanger of the condensation chamber is provided with a fresh air inlet and a fresh air outlet. Air is conveyed through this heat exchanger, whereupon it is heated up. This warmed air is supplied to the burner of the apparatus.
摘要:
A method of facilitating multimedia broadcast multicast services (MBMS) in a communications network including one or more first evolved node Bs (eNBs) having backhaul interfaces for a first internet protocol (IP) version and one or more second eNBs having backhaul interfaces for a second IP version includes receiving, at a first network element, an initial MBMS content stream; generating, at the first network element, based on the initial MBMS content stream, a first MBMS content stream and a second MBMS content stream; transmitting the first MBMS content stream from the first network element to the one or more first eNBs using a first IP multicast address of the first IP version; and transmitting the second MBMS content stream from the first network element to the one or more second eNBs using a second IP multicast address of the second IP version.
摘要:
A local network call handling device is configured to establish multiple concurrent call sessions between local network end devices and an external network. When a prioritized end device attempts to establish a call session, the call handling device may initially determine if a first call session identifier is available. If so, the call session can be established using that first identifier. If the first identifier is in use for a call session of another end device, the call handling device may either use a different call session identifier for the prioritized end device session or may drop a pre-existing call session to free an identifier for use in connection with the prioritized end device.
摘要:
Embodiments include a method and system for digital intraoral x-ray of non-human animals using a flexible and reusable cassette and imaging plate. The imaging plate is activated using an x-ray generator and scanned to capture an image from the imaging plate.
摘要:
Systems are described for precisely positioning motion picture film frames at a camera film gate by the use of registration pins that project into film perforations, where the film frames are spaced by 2.5 perforations instead of the standard 4 perforations. In one system, the registration mechanism includes two sets of registration pins which project into film frames as the film is advanced in steps of 2.5 perforations. In another system, additional holes are punched into the standard film stock, so there are holes or perforations located at 2.5 perforation spacings along the length of the film, so only one set of registration pins is required for precision registration of film frames spaced by 2.5 perforations.
摘要:
A new 35 mm motion picture film is described which maximizes usage of film stock, and which facilitates acceptance by motion picture theater owners. Acceptance is facilitated by minimizing the cost for projector head conversion and by assuring at least present image quality. The new motion picture format (12, FIG. 4) has film frames (20) of substantially the same size (22, 24) as the mask aperture (H) of the current Wide Screen Academy Format, and uses the same size and spacing of sprocket holes, or film perforations. However, the film frames are spaced apart by a distance (26) that is a noninteger number of perforations, with the spacing being 2.5 perforations in a preferred format (12). A current projector head is converted for showing the new format, by providing new sprocket wheels (14, FIG. 5) with ten teeth, that mount on the same shafts of the projector head as current sprocket wheels that have sixteen teeth.