Abstract: The invention relates to the field of home networks, in particular to the connection of two home networks of different types via a gateway. The network appliances in the network of the first type are also intended to be able to control the network appliances in the network of the second type, and vice versa. One problem that occurs when carrying out conversion processes on control messages is that an input parameter which is known in the network of the first type can be changed as required and can also be signaled further within this network, but the associated correspondence in the network of the second type is permanently set, and accordingly cannot be changed. The invention provides a way in which an input parameter such as this can nevertheless be likewise updated in the network of the second type. For this purpose, the network station which relates to the input parameter is first of all logged-off in the network of the second type.

Abstract: The invention relates to the field of home networks, in particular the connection of two home networks of different types via a gateway. The network devices in the network of the first type are also intended to be able to control the network devices in the network of the second type, and vice versa. In the context of realizing control message conversions, the problem has arisen that, although direct conversions into the format of the other network are possible for many control messages, in some cases there is no correspondence for a control message in the device to be controlled.

Abstract: The invention relates to the technical field of domestic networks. A domestic network based on the present UpnP-Standard allows AV connections to be set up between two network subscriber stations. Network connections such as these are set up and managed under the control of a network station which is in the form of a control point. In this case, the UpnP-Standard allows the network station which is the form of a control point to log off the network after setting up an AV connection, and thus to be inactive while the AV connection that has been set up is in existence. This results in the problem that an AV connection which has been set up unnecessarily remains in existence even after the desired AV data stream has been transmitted, so that further connection requests for such stations must be answered with a rejection.

Abstract: When data streams are being transmitted in a network of distributed stations (10, 20) in which the network subscriber stations are controlled on the basis of the Internet Protocol, a resource (such as a file) can very often be transmitted using the HTTP-GET method. However, this does not support discontinuous transmission, in sections, of data, as is required, for example, in the case of trick modes (search processes) for a video film. The invention describes an extension to the known HTTP-GET method, such that this application is likewise possible. For this purpose, additional parameters relating to the required search are transmitted to the source appliance (10) in the HTTP-GET request. The source appliance (10) then sends the respective data sections for the search.

Abstract: The invention relates to the field of domestic network technology. The control of an appliance in the network via a central appliance (10) for the network and having a display unit is normally simplified with the aid of user interfaces. When an audio-video datastream has to be transmitted between two network appliances, then this takes place via data links that are set up. There is then a close relationship between the connected appliances, and this requires frequent switching between the user interfaces of the two appliances. For example, when the user interface for a CD player (13) is displayed, this user interface must first of all be closed and a user interface for an amplifier (14) in the network must be started, usually by selection from the list of all the appliances in the network, in order then to set the volume for the amplifier (14).

Abstract: The targeted driving of a network component is intended to be facilitated for the user. Therefore, the icons (I1, I2, I4, I5, I6) of the network components are always represented at desired, fixed display locations of a screen (4). The display locations are either read directly from the network component or determined via the Global Unique Identifier GUID.

Abstract: Two or more electronic devices (1, 3, 4) are connected via a bus system (5), wherein one of the network devices controls (1) other network devices (3, 4). A first control applica-tion is uploaded from a first controlled device to the con-trol device and a second control application is uploaded from a second controlled device into the first control ap-plication. The first and second controlled devices can be operated simultaneously using a single user interface shown on a display of the control device. The user interface of the first device is displayed as main user interface and the user interface of the second device is rendered within the main interface as reduced user interface, which includes only operation elements necessary for operation of the sec-ond device in combination with the first device. The genera-tion of combined user interfaces is also possible when the second controlled device comprises features, which are not known at the production of the first controlled device.

Abstract: The invention relates to the bridging technology of home networks, namely a HAVi home network and an IP based network such as UPnP network. When combining both networks via a gateway (10) the service of controlling a UPnP device from a HAVi device shall be provided. A problem arises from the fact that not for every UPnP device a corresponding device control module exists in the HAVi network technology so that some of the UPnP devices cannot be controlled via a corresponding device control module (DCM).

Abstract: The invention relates to an appliance for wireless reception of radio signals such as those which are transmitted, for example, in networks which are not based on wires (“wireless network”). A problem which frequently occurs in these networks is that the field strength distribution in a room is highly inhomogeneous due to reflections on walls, ceilings and objects. This can lead to the signal to be received being very severely attenuated at the location of the receiving antenna while, at a point only a few centimeters away, it can be received virtually without any attenuation. The invention thus provides a signal evaluation circuit which continually evaluates the reception field strength. As soon as the reception field strength falls below a specific threshold value, a drive unit reacts by changing the physical position of the antenna.

Abstract: The invention relates to a storage medium on which a set of data is stored such that at least part of the set of data can be read and processed using a evaluation device, one part of the set of data being stored in a read-only memory area and another part of the set of data being stored in a read/write memory area of the storage medium. At least part of the set of data is read by means of the evaluation device and can be processed in a first processing form and at least one other processing form, each of which can be selected by means of the evaluation device, independent data in the set of data, which independent data can be used both for the at least partial processing of the set of data in the first processing form and for the at least partial processing of the set of data in the at least one other processing form, being included in the first part of the set of data, which part is stored in the read-only memory area.

Abstract: In a further development of the CD, the so-called DVD, a data format was chosen which is upwards compatible with the CD. As a result, existing audio CDs can also be played on a DVD player. If complete error correction is not possible during the reproduction of a CD by an audio CD player, then simple measures for error concealment are additionally taken, but they are not always adequate. However, for cost reasons more complicated methods are not used in an audio CD player, since they would require a more powerful processor and a larger memory. However, a DVD player has this more complex hardware in any event, in order to enable the outstanding video quality that is intended.

Abstract: A device to reproduce data stored on a recording medium 1 in sectors 14, each sector containing an address area 15 and a data area 16 being encoded in a different way. Address areas are decoded and checked by an address checking means 4 which stores data having an incorrect address into a first memory means 5 and data having a correct address into a second memory means 6. Data contained in the second memory means 6 is decoded by a data decoding means 7 in order to be reproduced. Data contained in the first memory means 5 is permitted to be reproduced in case that the number of successive sectors having incorrect address exceeds by one the difference between newly read correct address and the last correct address before the succession of incorrect addresses.

Abstract: The coding or decoding of video data with the associated audio and/or other data can be performed, for example, on the basis of the standards ISO/IEC 11172 (MPEG1) or ISO/IEC 13818 (MPEG2). Such coding and decoding can include the conversion of a primary bit stream coded on the basis of such standards into a secondary bit stream with a different data rate. Since the information content of the motion vectors from the primary bit stream retain their validity in the secondary bit stream, it is not necessary to recalculate motion vectors for transcoding. Instead, encoding of the secondary bit stream is performed with the aid of the motion vectors from the primary bit stream which are reused. In such a case, the encoding of the secondary bit stream is carried out in a restricted prediction mode, i.e. only those prediction modes which are described by respective block type or the motion information of the primary bit stream are allowed in the secondary bit stream.

Abstract: A system is disclosed for the compatible transmission of a 16:9 progressive scan television signal by means of a letterbox formatted line interlaced signal. The letterbox edge bands contain a vertical helper signal representing the difference between a predicted progressive line and adjacent interlaced lines. Improved resolution of a progressive image at a progressive 16:9 receiver is facilitated by specially arranged half band filters in the transmitter/coder and inverse half band filtering in the receiver. Alternatively, when ordinary low pass filtering is used in the coder prior to interlaced subsampling, the fidelity of a reproduced image is improved using, an approximate simulation of such coder low pass filtering in the decoder together with a correction signal derived therefrom. An image reproduced at the progressive 16:9 receiver can more closely resemble the transmitter source signal by interative processing of the receiver correction signal.