US 6,185,228 B2Granted

Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereof

AssigneeHitachi, Ltd.

InventorsSatoru Takashimizu, Yuji Yamamoto, Kenji Katsumata, Takumi Okamura, Takuya Matsumoto, Shuko Sei, Yuji Hatanaka

Life of this patent

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Abstract

In a digital broadcasting signal receiving/recording/reproducing apparatus, a recorded program can be immediately reproduced without performing complicated operations. Only a desired program and information related to the desired program are separated to be extracted from the digital broadcasting signal. Then, the separated/extracted broadcasting signal is supplied to a recording/reproducing apparatus. In the recording/reproducing apparatus, the supplied broadcasting signal is recorded, and the recorded program can be immediately reproduced without complicated manipulating operations during the signal reproducing operation.

Claims33

Dependent claims

A digital broadcasting signal receiving apparatus comprising:

a channel decoding circuit receiving transmitted digital information and demodulating the received digital information into a bit stream having a predetermined packet structure, said transmitted digital information being such that a plurality of logical channel signals constituted by video, audio, and data are multiplexed as digital information on a single bit stream having a predetermined packet format and are transmitted;
a first packet separating circuit extracting a designated packet from a bit stream outputted from said channel decoding circuit;
a source decoding circuit decoding a logical channel signal outputted from said first packet separating circuit to output the decoded logical channel as a television signal;
a second packet separating circuit extracting at least a portion of the designated packets from the bit stream outputted from said channel decoding circuit;
an output circuit outputting a bit stream outputted from said second packet separating circuit toward a recording/reproducing circuit;
an input circuit supplying a bit stream derived from said recording/reproducing circuit to said first packet separating circuit;
and
a control circuit controlling operations of said first packet separating circuit and said second packet separating circuit.

5 more elements

A digital broadcasting signal receiving apparatus comprising:

an input processing circuit receiving transmitted digital information and for demodulating the received digital information into a bit stream having a predetermined packet structure, said transmitted digital information being such that a plurality of logical channel signals constituted by at least one of video, audio, and data are multiplexed as digital information on a single bit stream having a predetermined packet format and are transmitted;
a packet separating circuit extracting a designated packet from a bit stream outputted from said input processing circuit;
a packet replacing circuit replacing at least a portion of packets outputted from said packet separating circuit by a predetermined signal;
an output circuit outputting an output signal from said packet replacing circuit inside, or outside said digital broadcasting signal receiving apparatus;
and
a control circuit controlling operations of said packet separating circuit.

3 more elements

A digital broadcasting signal receiving/recording/reproducing apparatus comprising:

an input processing circuit receiving transmitted digital information and for demodulating the received digital information into a bit stream having a predetermined packet structure, said digital information being such that a plurality of logical channel signals constituted by at least one of video, audio, and data are multiplexed as digital information on a single bit stream having a predetermined packet format and are transmitted;
a packet separating circuit extracting a designated packet from a bit stream outputted from said input processing circuit;
a packet replacing circuit replacing either a portion or all of packets outputted from said packet separating circuit;
a recording/reproducing circuit recording/reproducing an output signal from said replacing circuit;
and
a control circuit controlling operations of said packet separating circuit.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/986,074Filed 5 Dec 1997
Priority: JP 8-33680817 Dec 1996
Granted: 6 Feb 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

H04N 21/23608
Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL…:…
H04H 60/27
Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems:…
H04N 5/76
Details of television systems: television signal recording
H04N 9/8042
Involving pulse code modulation of the colour picture signal components: involving data reduction