Methods and apparatus for recording video files and for generating a table listing the recorded files and links to additional information
AssigneeHitachi America, Ltd.
InventorKazushige Hiroi
Life of this patent
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Abstract
A receiver arranged to receive and store broadcast data transported by elementary stream of a multiplexed and modulated digital television signal in a rewritable memory during a low power consumption mode for later recall by a user of the receiver. For recall, the receiver is fully energized, and the receiver is further arranged to transfer the broadcast data stored in the rewritable memory to a receiver storage device for further processing of the data under control of the user.
Claims20
A method for receiving, in a receiver, broadcast data propagated by a multiplexed and modulated digital signal, the signal including video data and at least one elementary stream conveying the broadcast data, the broadcast data including a header and, if necessary, a payload, the receiver including:
- (i) a tuner for tuning to the signal under control of a user of the receiver;
- (ii) a demodulator, coupled to the tuner, for demodulating the signal to generate a transport stream conveying the broadcast data;
- (iii) a data processor responsive to control signals from the user for processing the broadcast data;
- (iv) a rewritable memory coupled to the data processor;
- and (v) a display device for displaying the video data as well as displayable data corresponding to the broadcast data, the method comprising the steps of
- (a) applying power to the tuner, the demodulator, the data processor, and the rewritable memory independent of the on-off state of the display device,
- (b) generating and storing a table in the rewritable memory to be filled in by the data processor,
- (c) processing in the data processor the header to obtain field information conveyed by the header,
- (d) if the field information indicates that the broadcast data contains a filename to be stored, storing the filename and the payload of the broadcast data corresponding to the filename in the rewritable memory, and proceeding to step (f),
- (e) if the field information indicates that the broadcast data contains a location to be stored, storing the location in the rewritable memory, and
- (f) storing at least some of the field information as an entry in the table for later recall by the user.
A method for receiving, in a receiver, broadcast data propagated by a multiplexed digital television signal, the signal including video data and at least one broadcast data elementary stream conveying the broadcast data, the broadcast data including a header and, if necessary, an associated payload, the header including a field that conveys an interest category assigned to the broadcast data, the receiver including:
- (i) a tuner for tuning to the signal under control of a user of the receiver;
- (ii) a demodulator, coupled to the tuner, for demodulating the signal to generate a transport stream conveying the broadcast data;
- (iii) a data processor responsive to control signals from the user for processing broadcast data;
- (iv) a rewritable memory coupled to the data processor;
- and (v) a display device for displaying the video data as well as displayable data corresponding to the broadcast data, the method comprising the steps of
- (a) applying power to the tuner, the demodulator, the demultiplexer, the data processor, and the rewritable memory independent of the on-off state of the display device,
- (b) generating and storing a table in the rewritable memory to be filled in by the data processor,
- (c) receiving from the user at least one interest category of interest to the user, and storing the at least one category in the data processor,
- (d) processing in the data processor the header to obtain field information conveyed by the header,
- (e) if the interest category of the broadcast data matches with the at least one interest category stored in the data processor for the user, proceeding to step (f);
- otherwise, bypassing the broadcast data,
- (f) if the field information indicates that the broadcast data contains a filename to be stored, storing the filename and the payload of the broadcast data corresponding to the filename in the rewritable memory, and proceeding to step (h),
- (g) if the field information indicates that the broadcast data contains a location to be stored, storing the location in the rewritable memory, and
- (h) storing at least some of the field information in the table for later recall by the user.
A method for receiving, in a receiver, broadcast data propagated by a multiplexed and modulated digital television signal, the signal including a series of elementary streams conveying the broadcast data as well as video data, the broadcast data including a header and, if necessary, an associated payload, the header including a section that conveys an interest category assigned to the broadcast data, the receiver including:
- (i) a tuner for tuning to the signal under control of a user of the receiver;
- (ii) a demodulator, coupled to the tuner, for demodulating the signal to generate a transport stream conveying the broadcast data;
- (iii) a data processor responsive to control signals from the user for processing broadcast data;
- (iv) a rewritable memory coupled to the data processor;
- and v a display device for displaying the video data as well as displayable data corresponding to the broadcast data, the method comprising the steps of:
- (a) applying power to the tuner, the demodulator, the demultiplexer, the data processor, and the rewritable memory independent of the on-off state of the display device,
- (b) generating and storing a table in the rewritable memory to be filled in by the data processor,
- (c) receiving from the user at least one interest category of interest to the user, and storing the at least one category in the data processor,
- (d) processing in the data processor the header to obtain field information conveyed by the header,
- (e) it the interest category of the broadcast data matches with the at least one interest category stored in the data processor for the user, proceeding to step (f);
- otherwise, bypassing the broadcast data,
- (f) if the field information indicates that the broadcast data contains a filename to be stored, storing the filename and the payload of the broadcast data corresponding to the filename in the rewritable memory, and proceeding to step (h),
- (g) if the field information indicates that the broadcast data contains a location to be stored, storing the location in the rewritable memory,
- (h) storing at least some of the field information in the table for later recall by the user, and
- (i) returning to step (d) to process the next incoming one of the broadcast data elementary streams.
A receiver for receiving broadcast data propagated by a multiplexed and modulated digital television signal, the signal including video data and at least one elementary stream conveying the broadcast data, the broadcast data including a header and, if necessary, a payload, the receiver including
- a tuner for tuning to the signal under control of a user of the receiver,
- a demodulator, coupled to the tuner, for demodulating the signal to generate a transport stream conveying the broadcast data,
- a data processor, responsive to input from the user, for processing the broadcast data,
- a rewritable memory, coupled to the data processor, for storing the broadcast data, and
- a display device, responsive to the data processor, for displaying, when energized, the video data as well as displayable data representative of the header and payload of the broadcast data,
- the tuner, the demodulator, the data processor, and the rewritable memory being continuously on independent of the on-off state of the display device,
- the rewritable memory including a table for storing the broadcast data,
- the data processor including
- a header processor for processing the header to obtain field information conveyed by the header,
- a field processor to determine if the field information indicates that the broadcast data contains a filename to be stored and means for storing the filename and the payload of the broadcast data corresponding to the filename in the rewritable memory,
- the field processor also being used to determine if the field information indicates that the broadcast data contains a location to be stored and means for storing the location only in the rewritable memory, and
- a storage processor for storing at least some of the field information as an entry in the table for later recall by the user.
Dependencies are inferred from the claim text.