A main stream contains successive content elements of video and/or audio information that encode video and/or audio information at a first data rate. A computation circuit (144) computes main fingerprints from the successive content elements. A reference stream is received having a second data rate lower than the first data rate. The reference stream defines a sequence of the reference fingerprints. A comparator unit (144) compares the main fingerprints with the reference fingerprints. The main stream is monitored for the presence of inserted content elements between original content elements, where the original content elements have main fingerprints that match successive reference fingerprints and the inserted content elements have main fingerprints that do not match reference fingerprints. Rendering of inserted content elements to be skipped. In an embodiment when more than one content element matches only one is rendered. In another embodiment matching is used to control zapping to or from the main stream. In another embodiment matching is used to control linking of separately received mark-up information such as subtitles to points in the main stream.

A main stream contains successive content elements of video and/or audio information that encode video and/or audio information at a first data rate. A computation circuit (144) computes main fingerprints from the successive content elements. A reference stream is received having a second data rate lower than the first data rate. The reference stream defines a sequence of the reference fingerprints. A comparator unit (144) compares the main fingerprints with the reference fingerprints. The main stream is monitored for the presence of inserted content elements between original content elements, where the original content elements have main fingerprints that match successive reference fingerprints and the inserted content elements have main fingerprints that do not match reference fingerprints. Rendering of inserted content elements to be skipped. In an embodiment when more than one content element matches only one is rendered. In another embodiment matching is used to control zapping to or from the main stream. In another embodiment matching is used to control linking of separately received mark-up information such as subtitles to points in the main stream.

An apparatus for capturing video broadcasting signals comprises a plurality of capture channels, each channel producing respective video transport streams as inputs to a multi-channel virtualization module. Each channel comprises: an input interface powered by a low-noise power supply arranged to receive a respective modulated video broadcasting input signal within an input frequency band; a single input, dual output distribution amplifier arranged to produce first and second amplified input signals within a satellite broadcasting frequency band and within a cable and/or terrestrial broadcasting frequency band, respectively. A first tuner is configured to receive and downconvert the first amplified input signal to generate a first baseband signal; a second tuner is configured to receive and downconvert the second amplified input signal to generate a second baseband signal; and a demodulator is configured to receive the baseband signals as input and to generate the respective video transport stream.

The application provides a channel switching method for a display apparatus, and a display apparatus. The display apparatus includes: a display, a remote control, a communicator, an input interface and a controller, the controller is configured to perform: receiving a channel switch instruction generated from an input number, taking the input number as a digital channel number for a first round of channel search, and determining whether a first channel corresponding to the digital channel number exists in a channel table stored in the display apparatus; in response to the first channel not existing in the channel table, further processing the input number to obtain a processed input number and taking processed input number as a physical channel number for a second round of channel search; and in response to the first channel existing in the channel table, control the display to play content from the first channel.

The application provides a channel switching method for a display apparatus, and a display apparatus. The display apparatus includes: a display, a remote control, a communicator, an input interface and a controller, the controller is configured to perform: receiving a channel switch instruction generated from an input number, taking the input number as a digital channel number for a first round of channel search, and determining whether a first channel corresponding to the digital channel number exists in a channel table stored in the display apparatus; in response to the first channel not existing in the channel table, further processing the input number to obtain a processed input number and taking processed input number as a physical channel number for a second round of channel search; and in response to the first channel existing in the channel table, control the display to play content from the first channel.

The present disclosure relates to an image display apparatus including a battery and a method for controlling the same, and the image display apparatus, which receives an input signal for channel selection from an external input device, comprising: an antenna; a tuner for selecting a broadcast signal corresponding to a specific channel, among signals received through the antenna, on the basis of the input signal and converting the selected broadcast signal into an image signal; a display unit for outputting an image associated with the specific channel by using the converted image signal; a power supply unit which includes a battery, charges the battery while electric energy from the outside is received and supplies power to the display unit using the electric energy received from the outside; a power failure detection unit for detecting whether power failure corresponding to a cut off of the electric energy supplied from the outside occurs; and a control unit for supplying power to the display unit using the battery when the power failure detection unit detects power failure and controlling brightness of at least one area of the display unit on the basis of residual capacity of the battery.

The present disclosure relates to an image display apparatus including a battery and a method for controlling the same, and the image display apparatus, which receives an input signal for channel selection from an external input device, comprising: an antenna; a tuner for selecting a broadcast signal corresponding to a specific channel, among signals received through the antenna, on the basis of the input signal and converting the selected broadcast signal into an image signal; a display unit for outputting an image associated with the specific channel by using the converted image signal; a power supply unit which includes a battery, charges the battery while electric energy from the outside is received and supplies power to the display unit using the electric energy received from the outside; a power failure detection unit for detecting whether power failure corresponding to a cut off of the electric energy supplied from the outside occurs; and a control unit for supplying power to the display unit using the battery when the power failure detection unit detects power failure and controlling brightness of at least one area of the display unit on the basis of residual capacity of the battery.

A receiver of radio and/or television signals, where the signals are transmitted via radio by transmitters and are received by said receiver, including: a means for receiving signals via radio that, through tuning information, is configurable for reception of content of the received radio and/or television signals; a memory means containing at least geographic transmission information, which includes geographical areas of coverage of the transmitters that transmit the signals received by the reception means, wherein the geographical transmission information is comparable with the tuning information; and a central computing unit configured to determine the geographical location of the receiver according to the geographical transmission information and the tuning information, the central computing unit also being configured to prepare access to the tuning information based on the geographical location of the receiver in order to organize access to the contents relating to the location of the receiver.

A receiver of radio and/or television signals, where the signals are transmitted via radio by transmitters and are received by said receiver, including: a means for receiving signals via radio that, through tuning information, is configurable for reception of content of the received radio and/or television signals; a memory means containing at least geographic transmission information, which includes geographical areas of coverage of the transmitters that transmit the signals received by the reception means, wherein the geographical transmission information is comparable with the tuning information; and a central computing unit configured to determine the geographical location of the receiver according to the geographical transmission information and the tuning information, the central computing unit also being configured to prepare access to the tuning information based on the geographical location of the receiver in order to organize access to the contents relating to the location of the receiver.

Features of various implementations are used to enable delivery of matched functionality, content and/or services, as a part of an interactive television suite of technologies. In some implementations, a content delivery process is enabled so that communication between the primary TV receiver and a supplemental set-top box is reduced in order to avoid the need for one or more provider-specific APIs. For example, one aspect of the disclosure is a method of identifying a media program by capturing display data from the media program, and extracting text from the display data in response to determining that the display data includes the text overlay, wherein the extracted text is associated with the media program. In some implementations, a supplemental set-top box is configured to operate a primary TV receiver, without a provider-specific API, in order to determine the channel line-up available to a particular subscriber through the primary TV receiver.