Receiving audio/video content
First Claim
1. An audio/video content receiver being configured to receive media content from a content source by a broadcast data path, the media content being arranged as a plurality of media channels, the content receiver comprising:
- host circuitry having a tuner configured to assign logical channel indices to the media channels to allow selection, at the host circuitry, of one or more of the media channels for reproduction by selecting the corresponding logical channel index, the host circuitry storing channel association data associating the logical channel indices with the received media channels; and
a removable conditional access circuitry configured to decode access-controlled encoded broadcast content, the host circuitry and the removable conditional access circuitry being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the removable conditional access circuitry and the host circuitry, wherein;
the host circuitry is configured to acquire channel association data via the broadcast data path;
the removable conditional access circuitry is configured to provide further channel association data to the host circuitry;
the host circuitry comprises a detector configured to detect a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the removable conditional access circuitry and, in the case of a conflict, to detect one or more unused logical channel indices for offering to the removable conditional access circuitry; and
the removable conditional access circuitry is configured to do one of;
select one of the unused logical channel indices for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data;
orthe removable conditional access circuitry responds with a request to the host circuitry for a different logical channel index to be offered;
orthe removable conditional access circuitry sets a different logical channel index for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data.
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Accused Products
Abstract
An audio/video content receiver being configured to receive media content from a content source by a broadcast data path, the media content being arranged as a plurality of media channels comprises a host module having a tuner configured to assign logical channel indices to the media channels to allow selection, at the host module, of one or more of the media channels for reproduction by selecting the corresponding logical channel index, the host module storing channel association data associating the logical channel indices with the received media channels; and a removable conditional access module (CAM), the CAM having an access control unit for decoding access-controlled encoded broadcast content, the host module and the removable CAM being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the CAM and the host module; in which: the host module is configured to acquire channel association data via the broadcast data path; the CAM is configured to provide further channel association data to the host module; the host module comprises a detector configured to detect a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the CAM and, in the case of a conflict, to detect one or more unused logical channel indices; and the CAM is configured to select one of the unused logical channel indices for use by a media channel for which the logical channel index defined in the CAM'"'"'s channel association data conflicts with a logical channel index defined in the host'"'"'s channel association data.
10 Citations
18 Claims
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1. An audio/video content receiver being configured to receive media content from a content source by a broadcast data path, the media content being arranged as a plurality of media channels, the content receiver comprising:
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host circuitry having a tuner configured to assign logical channel indices to the media channels to allow selection, at the host circuitry, of one or more of the media channels for reproduction by selecting the corresponding logical channel index, the host circuitry storing channel association data associating the logical channel indices with the received media channels; and a removable conditional access circuitry configured to decode access-controlled encoded broadcast content, the host circuitry and the removable conditional access circuitry being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the removable conditional access circuitry and the host circuitry, wherein; the host circuitry is configured to acquire channel association data via the broadcast data path; the removable conditional access circuitry is configured to provide further channel association data to the host circuitry; the host circuitry comprises a detector configured to detect a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the removable conditional access circuitry and, in the case of a conflict, to detect one or more unused logical channel indices for offering to the removable conditional access circuitry; and the removable conditional access circuitry is configured to do one of; select one of the unused logical channel indices for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data;
orthe removable conditional access circuitry responds with a request to the host circuitry for a different logical channel index to be offered;
orthe removable conditional access circuitry sets a different logical channel index for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An audio/video content reception method for receiving media content from a content source by a broadcast data path by a receiver having a host circuitry and a removable conditional access circuitry, the removable conditional access circuitry having an access control unit for decoding access-controlled encoded broadcast content, the host circuitry and the removable conditional access circuitry being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the removable conditional access circuitry and the host circuitry, the media content being arranged as a plurality of media channels, the method comprising:
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the host circuitry assigning logical channel indices to the media channels to allow selection, at the host circuitry, of one or more of the media channels for reproduction by selecting the corresponding logical channel index; the host circuitry storing channel association data associating the logical channel indices with the received media channels; the host circuitry acquiring channel association data via the broadcast data path; the removable conditional access circuitry providing further channel association data to the host circuitry; the host circuitry detecting a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the removable conditional access circuitry and, in the case of a conflict, detecting one or more unused logical channel indices for offering to the removable conditional access circuitry; and the removable conditional access circuitry selecting one of the unused logical channel indices for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data or the removable conditional access circuitry responding with a request to the host circuitry for a different logical channel index to be offered;
orthe removable conditional access circuitry setting a different logical channel index for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data. - View Dependent Claims (18)
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14. A removable conditional access circuitry for use in an audio/video content receiver being configured to receive media content from a content source by a broadcast data path, the media content being arranged as a plurality of media channels, the content receiver comprising a host circuitry having a tuner configured to assign logical channel indices to the media channels to allow selection, at the host circuitry, of one or more of the media channels for reproduction by selecting the corresponding logical channel index, the host circuitry storing channel association data associating the logical channel indices with the received media channels, the host circuitry being configured to acquire channel association data via the broadcast data path;
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the removable conditional access circuitry having an access control unit for decoding access-controlled encoded broadcast content, the host circuitry and the removable conditional access circuitry being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the removable conditional access circuitry and the host circuitry; in which; the removable conditional access circuitry is configured to provide further channel association data to the host circuitry; in response to the detection of a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the removable conditional access circuitry and a detection, by the host, of one or more unused logical channel indices, the removable conditional access circuitry is configured to select one of the unused logical channel indices for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host'"'"'s channel association data or the removable conditional access circuitry configured to respond with a request to the host circuitry for a different logical channel index to be offered;
orthe removable conditional access circuitry configured to set a different logical channel index for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data.
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15. A method of operation of a removable conditional access circuitry for use in an audio/video content receiver being configured to receive media content from a content source by a broadcast data path, the media content being arranged as a plurality of media channels, the content receiver comprising a host circuitry having a tuner configured to assign logical channel indices to the media channels to allow selection, at the host circuitry, of one or more of the media channels for reproduction by selecting the corresponding logical channel index, the host circuitry storing channel association data associating the logical channel indices with the received media channels, the host circuitry being configured to acquire channel association data via the broadcast data path;
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the removable conditional access circuitry having an access control unit for decoding access-controlled encoded broadcast content, the host circuitry and the removable conditional access circuitry being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the removable conditional access circuitry and the host circuitry; the method comprising; providing further channel association data to the host circuitry; and in response to the detection of a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the removable conditional access circuitry and a detection, by the host, of one or more unused logical channel indices, selecting one of the unused logical channel indices for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host'"'"'s channel association data or the removable conditional access circuitry responding with a request to the host circuitry for a different logical channel index to be offered;
orthe removable conditional access circuitry setting a different logical channel index for use by a media channel for which the logical channel index defined in the removable conditional access circuitry'"'"'s channel association data conflicts with a logical channel index defined in the host circuitry'"'"'s channel association data.
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16. A host circuitry for use in an audio/video content receiver being configured to receive media content from a content source by a broadcast data path, the media content being arranged as a plurality of media channels,
the host circuitry having a tuner configured to assign logical channel indices to the media channels to allow selection, at the host circuitry, of one or more of the media channels for reproduction by selecting the corresponding logical channel index, the host circuitry storing channel association data associating the logical channel indices with the received media channels and being connectable to a removable conditional access circuitry, the removable conditional access circuitry having an access control unit for decoding access-controlled encoded broadcast content, the host circuitry and the removable conditional access circuitry being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the removable conditional access circuitry and the host circuitry; -
in which; the host circuitry is configured to acquire channel association data via the broadcast data path and to receive further channel association data from the removable conditional access circuitry; and the host circuitry comprises a detector configured to detect a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the removable conditional access circuitry and, in the case of a conflict, the host circuitry is configured to notify the removable conditional access circuitry of the conflict and providing the removable conditional access circuitry with logical channel index at which the conflict occurs.
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17. A method of operation of a host circuitry in an audio/video content receiver being configured to receive media content from a content source by a broadcast data path, the media content being arranged as a plurality of media channels,
the host circuitry having a tuner configured to assign logical channel indices to the media channels to allow selection, at the host circuitry, of one or more of the media channels for reproduction by selecting the corresponding logical channel index, the host circuitry storing channel association data associating the logical channel indices with the received media channels and being connectable to a removable conditional access circuitry, the removable conditional access circuitry having an access control unit for decoding access-controlled encoded broadcast content, the host circuitry and the removable conditional access circuitry being arranged to provide an encrypted communication link for decoded access-controlled encoded broadcast content between the removable conditional access circuitry and the host circuitry; -
the method comprising; acquiring channel association data via the broadcast data path and to receive further channel association data from the removable conditional access circuitry; and detecting a conflict of logical channel index between the channel association data acquired by the host from the broadcast data path and the channel association data provided by the removable conditional access circuitry and, in the case of a conflict, the host circuitry is notifies the removable conditional access circuitry of the conflict and provides the removable conditional access circuitry with logical channel index at which the conflict occurs.
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Specification