Abstract: A multimedia stream system includes a transmitter and a multimedia data stream receiver. The transmitter at receives raw multimedia data and generates uniform error correction data and a standard multimedia data stream. The multimedia data stream receiver receives the standard multimedia data stream containing encoded multimedia data and the uniform error correction data for error correction of encoded multimedia data.

Abstract: In a transmitter, a standard stream of encoded multi-media data and uniform error correction data is transmitted through a first channel. The uniform error correction data provides substantially the same error correction for all portions of the encoded multimedia data. Simultaneously, additional unequal error correction data is generated for critical portions of the standard stream and not for other portions of the standard stream, and the additional error correct data is transmitted through a second channel. In a receiver, the additional error correct data is used to error correct just the critical portions of the standard stream, and then the uniform error correction data is used to error correct all the portions of the encoded multimedia data of the standard stream.

Abstract: The present invention relates to digital image sensors and in particular to contour filters (ZSB, 7) preventing green non-uniformity in the contour signal of the RGB Bayer image sensors. A set of rules is specified for designing the filter coefficients in the filter, whereby green non-uniformity is prevented.

Abstract: A system facilitates and enhances review of one or more multimedia input streams that includes some combination of video, audio and text information, generating a multimedia summary, thereby enabling a user to better browse and/or decide on viewing the multimedia input streams in their entirety. The multimedia summary is constructed automatically, based in part on system specifications, user specifications and network and device constraints. In a particular application of the invention, the input multimedia streams represent news broadcasts (e.g., television news program, video vault footage). In such a particular application, the invention can enable the user to automatically receive a summary of the news stream in accordance with previously provided user preferences and in accordance with prevailing network and user device constraints.

Abstract: The invention relates to a method of and a system for transferring a communication session from one service area (101) to another (102), where each service area is associated with a transcoding proxy (111, 112) for transcoding communication sessions established in said service area to and from a format suitable for a mobile device (104). A gateway server (103) relays the communication session from a content server (105, 106, 107) via the appropriate transcoding proxy to the mobile device (104). When the mobile device (104) moves to the second service area (102), the second transcoding proxy (112) is contacted and session handling is transferred thereto. The transfer operation is transparent to the content server, so the session between mobile device (104) and content server (105, 106, 107) stays intact. The invention also relates to a mobile assistant server, a transcoding proxy and a mobile device for use in said system.

Abstract: The present invention relates to interpolating a missing color value of a given pixel in an array of pixels. The missing color value is determined from color values of neighboring pixels using a median-based technique in which the median is taken of the four pixels values of the horizontally and vertically neighboring pixels (G1-G4) having a same color as the missing color value, and color information from at least one other color (R/B) at the given pixel.

Abstract: An encrypted stream of video information (20) contains first video frames (22) and second video frames which are accessible and not accessible during trick play respectively. From a source stream encrypted that is for decryption with repeatedly changing control words sections of the stream are identified where respective first ones of the frames occur in the stream. Control words for decryption (24) are included in the stream. At least part of the control words are included in the stream at positions selected synchronized to the identified sections.

Abstract: A method of protecting an apparatus from radio frequency interference, comprises a policing terminal (PT) detecting the presence of an interfering radio terminal (16) in the protected environment and actively rendering ineffective or terminating transmissions by the interfering radio terminal. Various options can be followed by the policing terminal (PT) including (a) attempting to become the master station of a network of which the interfering terminal is a member and instructing the members to close down or (b) failing to become the master station and transmitting interference signals for at least a selected portion, for example preamble and sync, of the duration of a data packet transmitted by the interfering station.

Abstract: In a color signal matrix adjustment method, a single first color signal matrix related value is adjusted (VAC) to obtain a color signal matrix adjustment, and at least two color signal matrix parameters other than the single first color signal matrix related value are automatically adapted (AAC) in dependence upon the color signal matrix parameter adjustment.

Abstract: This invention relates to a method and system for changing an output rate of information for a buffer (3) with a constant first output rate (R1) which receives output data from a data source (2a), where the method step comprises; halting the reception of output data from the data source (2a); outputting (4) the stored output data of the buffer (3) at the first output rate (R1) until said buffer is empty, and resuming receiving and storing of output data in the buffer (3); setting a second constant output rate (R2) as the output rate of the buffer; and commencing/starting output of the content of the buffer at the second output rate (R2) when the amount of buffered data is equal to the second constant output rate (R2) times a requested buffer-time (TB2).

Abstract: Image templates define characteristics of video content desired to be recorded, including color characteristics and spatial distribution of regions to be compared in determining a level of similarity and white regions of expected variability which are ignored in the comparison. Each image template is compared to fields for an associated channel, either continuously or during a predefined period. Fields received on the associated channel which have at least a threshold level of similarity are saved, together with associated audio.

Abstract: A communications system comprises at least one beacon device capable of wireless message transmission and at least one portable device capable of receiving such a message transmission. The beacon is arranged to broadcast a series of inquiry messages each in the form of a plurality of predetermined data fields arranged according to a first communications protocol, such as Bluetooth. For the delivery of additional data via broadcast, and in particular data including location information, the beacon adds to each inquiry message prior to transmission an additional data field carrying broadcast data, with the portable device receiving the transmitted inquiry messages including the location data and reading the broadcast data from the additional data field.