摘要:
At least one object within a portion of media content is recognized. The object is essentially a feature of the media content portion. Information is associated with the recognized object based on recognizing the object.
摘要:
Blocks of audio information are arranged in groups that share encoding control parameters to reduce the amount of side information needed to convey the control parameters in an encoded signal. The configuration of groups that reduces the distortion of the encoded audio information may be determined by any of several techniques that search for an optimal or near optimal solution. The techniques include an exhaustive search, a fast optimal search and a greed merge, which allow the search technique to tradeoff the reduction in distortion against the bit rate of the encoded signal and/or the computational complexity of the search technique.
摘要:
Transmitters and receivers in multiple description coding systems use correlating and decorrelating transforms to generate and process multiple descriptions of elements of an input signal. The multiple descriptions include groups of correlating transform coefficients that permit recovery of an inexact facsimile of the signal if some of the correlating transform coefficients are lost or corrupted during transmission. Noiseless implementations of the correlating and decorrelating transforms are described that allow the signal elements to be quantized with different quantizing resolutions. Implementations using the Fast Hadamard Transform are described that reduce the resources needed to perform the transforms.
摘要:
The loss of packets in a communication system can be minimized in an optimal manner by adapting a set of error correction (EC) parameters in response to a calculated probability of packet loss. The calculated probability is obtained from derived algorithms that are applied to a set of communication parameters. Algorithms are derived from Bernoulli-distributed traffic models and constant bit rate (CBR) traffic models of the communication system. A collapsed-state model is used to derive a very efficient algorithm that calculates an approximate probability of packet loss. Alternate applications for the algorithms are also disclosed.
摘要:
A lifting airfoil (10) includes a landing flap (20) movably connected to a main airfoil body (10') so as to form at least a portion of the trailing edge of the airfoil. The landing flap (20) includes a leading edge nose (21) and a trailing edge body (22), which are each bounded by an upper cover skin (23) and a lower cover skin (24). The trailing edge body (22) is connected to the leading edge (21) by the continuous upper cover skin (23), while a gap (25) interrupts the lower cover skin (24) between the leading edge nose (21) and the trailing edge body (22). The flap (20) is mounted on a carriage (31) that moves along a guide rail (30) so as to be slidably and pivotably extendable during take-off and landing phases of a flight. Furthermore, the trailing edge body (22) is elastically flexible and can be deflected as needed for adjusting the camber thereof during cruise flight by operating an actuating device (29) that is pivotably connected between a trailing edge area of the trailing edge body (22) and the guide rail (30).
摘要:
A method for use in identifying a segment of audio and/or video information comprises obtaining a query fingerprint at each of a plurality of spaced-apart time locations in said segment, searching fingerprints in a database for a potential match for each such query fingerprint, obtaining a confidence level of a potential match to a found fingerprint in the database for each such query fingerprint, and combining the results of searching for potential matches, wherein each potential match result is weighted by respective confidence level. A confidence level may be a function of at least one or both of (1) a measure of difference between a query fingerprint and a found fingerprint and (2) the relative timing relationship between the time location of a query fingerprint and the time location of a found fingerprint.
摘要:
A media fingerprint is derived from a portion of media content. Information is associated with the media content portion based on the derived media fingerprint. Upon linking to the associated information, the associated content is presented with the media content portion. The media fingerprint includes a unique representation of the media content portion that is derived from a characteristic component of the media content portion. The media content may comprise an original instance of content or a derivative instance of the original content.
摘要:
Media fingerprints, which are each derived from and uniquely correspond to a portion of media content, are stored over a distributed database. An instance of one or more information containers of the distributed database are each disposed over two or more computing devices, which are communicatively linked over a data network. The media fingerprints are distributed among the information containers based on a criterion that relates individually to each of the media fingerprints. Upon a query directed to one of the media fingerprints, at least one of the two or more computing devices is selected based on the criterion. The query is executed over the distributed database instance of the selected computing device.
摘要:
A cement clinker manufacturing installation a rotary kiln (10) having secondary firing and a grate cooler (16) with a high degree of heat recuperation. Instead of placing the grate cooler (16) in-line with the rotary kiln (10), the grate cooler (16) is positioned with its clinker transport direction (16a) transverse to the longitudinal axis of the rotary kiln (10). This angular positioning of the grate cooler (16) permits a discharge of hot air from the grate cooler as combustion air for the secondary firing of the calcination state by way of a discharge opening (20 or 21) on the lateral half of the kiln discharge housing (11) in which the beginning of the recuperation zone of the grate surface (15) of the grate cooler (16) is located. Thus somewhat cooler secondary air (18) flows into the rotary kiln (16) thereby avoiding excessively high temperatures at the rotary kiln discharge without reduction in overall thermal efficiency of the cement plant.
摘要:
A method and apparatus for calcining fine grained material in the manufacture of cement clinker wherein material is preheated and partially calcined in a cyclone preheater, further partially calcined by a waste zone wherein waste material such as used tires are burned in an excess of oxygen, completely calcined in a kiln, the exhaust gases from the waste zone and kiln fed to a separate auxiliary burning zone which is supplied only with fuel and utilizes the excess oxygen from the waste zone reducing the presence of CO and the CO surges, and the heat from the burning zone is fed to the preheaters to further precalcine the material.