Abstract: The invention relates to a device and a method for recording data on a recording medium. The invention relates to the implementation of the timeshift function in a part of said recording medium called the timeshift buffer memory having a size defined in terms of recording capacity. For the timeshift buffer memory, a first threshold defines a capacity limit, a second threshold defines a recording time limit. The device records the data in the timeshift buffer memory as long as the second threshold is not reached and when the second threshold is reached before the first threshold, the processor truncates the start of the timeshift buffer memory when the data being read are not located at the start of the buffer memory or moves to reading the data of the timeshift buffer memory when the data being read are located at the start of the timeshift buffer memory.

Abstract: A digital decoder for television receiver, comprises an input (E) for receiving a digital audio/video signal (SAV), means for demodulating and decoding the input signal into an output signal intended for the television receiver, and a first buffer memory (8) into which the input signal is diverted after demodulation (SD) when the decoder is placed in a so-called “live” mode of operation. In a so-called “playback” mode of operation, the signal recorded in the first buffer memory constitutes the output signal. This decoder comprises a second buffer memory (9) into which the demodulated input signal (SD) is diverted when the decoder is placed in the “playback” mode, the signal recorded in the second buffer memory (9) constituting the output signal when the decoder is switched from the “playback” mode to another so-called “return to live” mode of operation.

Abstract: A digital decoder for television receiver, comprises an input (E) for receiving a digital audio/video signal (SAV), means for demodulating and decoding the input signal into an output signal intended for the television receiver, and a first buffer memory (8) into which the input signal is diverted after demodulation (SD) when the decoder is placed in a so-called “live” mode of operation. In a so-called “playback” mode of operation, the signal recorded in the first buffer memory constitutes the output signal. This decoder comprises a second buffer memory (9) into which the demodulated input signal (SD) is diverted when the decoder is placed in the “playback” mode, the signal recorded in the second buffer memory (9) constituting the output signal when the decoder is switched from the “playback” mode to another so-called “return to live” mode of operation.

Abstract: The invention relates to a device and a method for recording data on a recording medium. The invention relates to the implementation of the timeshift function in a part of said recording medium called the timeshift buffer memory having a size defined in terms of recording capacity. For the timeshift buffer memory, a first threshold defines a capacity limit, a second threshold defines a recording time limit. The device records the data in the timeshift buffer memory as long as the second threshold is not reached and when the second threshold is reached before the first threshold, the processor truncates the start of the timeshift buffer memory when the data being read are not located at the start of the buffer memory or moves to reading the data of the timeshift buffer memory when the data being read are located at the start of the timeshift buffer memory.

Abstract: A digital decoder for television receiver, comprises an input (E) for receiving a digital audio/video signal (SAV), means for demodulating and decoding the input signal into an output signal intended for the television receiver, and a first buffer memory (8) into which the input signal is diverted after demodulation (SO) when the decoder is placed in a so-called “live” mode of operation. In a so-called “replay” mode of operation, the signal recorded in the first buffer memory constitutes the output signal. This decoder comprises a second buffer memory (9) into which the demodulated input signal (SO) is diverted when the decoder is placed in the “replay” mode, the signal recorded in the second buffer memory (9) constituting the output signal when the decoder is switched from the “replay” mode to another so-called “return to live” mode of operation.

Abstract: The invention makes configuring satellite decoders easier. An automatic detection method can configure the decoder without having to determine the installation beforehand. The automatic detection method tests different configuration possibilities in order to determine the used antenna system. A series of input selection commands are sent for a remote antenna switch corresponding to a given range of switch control possibilities, the said range being independent from the used antenna system.

Abstract: The process is characterized in that, the zoomed image being defined by its horizontal and vertical homothety ratio with respect to the coded image, it performs the following steps: calculation of the horizontal and vertical sizes of an initial display rectangle from which would be obtained the sizes of the target display rectangle as defined by the profile and level information by applying the horizontal and vertical homothety ratios, storage in the display_horizontal_size and display_vertical_size fields of an MPEG2 video data stream of the horizontal and vertical sizes of the initial display rectangle.

Abstract: The data stream constituting an electronic programme guide EPG containing video and/or audio previews is intended to be downloaded into a digital services decoder for television receiver. It comprises first header data blocks (DD,MC,SD) containing a directory of the data blocks of the stream, a routine intended for the decoder for the loading into memory and the running of the electronic programme guide in the decoder, and screen display parameters, and second data blocks (PD1,PD2,PD3) each containing a video and/or audio preview. The first header data blocks (DD,MC,SC) are repeated in the stream between the second data blocks (PD1,PD2,PD3) so as to improve the convenience of use of the EPG service.

Abstract: The invention makes configuring satellite decoders easier. An automatic detection method can configure the decoder without having to determine the installation beforehand. The automatic detection method tests different configuration possibilities in order to determine the used antenna system. A series of input selection commands are sent for a remote antenna switch corresponding to a given range of switch control possibilities, the said range being independent from the used antenna system.

Abstract: The initialization method is applied to a digital decoder comprising a tuner that can receive, in succession, data on several frequencies, each frequency being able to carry a data transport stream containing forthcoming events tables transmitted by service providers. It consists in analyzing in succession the data received on each transport stream so as to detect the presence of forthcoming events tables and in recording in the decoder a list of identifiers of the service providers transmitting forthcoming events tables. Advantageously this list is utilized by a program guide in order to inform the user of the program grids available and not available according to the service providers.

Abstract: The system comprises a separate unit for calculating quality parameters relating to results obtained from video test sequences by means of the device to be tested and nonlinear as a function of these results. It also comprises a unit for comparing, over time, these parameters and corresponding quality parameters, the latter being associated with reference results relating to video test sequences. The comparison unit produces binary results corresponding respectively to the quality parameters by means of predetermined tolerance margins, thereby allocating to each of the binary results corresponding to one of the quality parameters a first value when the quality parameter associated with the device to be tested remains within the tolerance margin around the quality parameter associated with the reference results, over time, and otherwise, a second value. Application to an IRD.

Abstract: The process is characterized in that, the zoomed image being defined by its horizontal and vertical homothety ratio with respect to the coded image (1, 7), it performs the following steps:

Abstract: A digital decoder for television receiver, comprises an input (E) for receiving a digital audio/video signal (SAV), means for demodulating and decoding the input signal into an output signal intended for the television receiver, and a first buffer memory (8) into which the input signal is diverted after demodulation (SD) when the decoder is placed in a so-called “live” mode of operation. In a so-called “playback” mode of operation, the signal recorded in the first buffer memory constitutes the output signal. This decoder comprises a second buffer memory (9) into which the demodulated input signal (SD) is diverted when the decoder is placed in the “playback” mode, the signal recorded in the second buffer memory (9) constituting the output signal when the decoder is switched from the “playback” mode to another so-called “return to live” mode of operation.

Abstract: The data stream constituting an electronic programme guide EPG containing video and/or audio previews is intended to be downloaded into a digital services decoder for television receiver. It comprises first header data blocks (DD,MC,SD) containing a directory of the data blocks of the stream, a routine intended for the decoder for the loading into memory and the running of the electronic programme guide in the decoder, and screen display parameters, and second data blocks (PD1,PD2,PD3) each containing a video and/or audio preview. The first header data blocks (DD,MC,SC) are repeated in the stream between the second data blocks (PD1,PD2,PD3) so as to improve the convenience of use of the EPG service.