Control of consumer recording equipment
AssigneeThomson Licensing
InventorHarold Blatter
Life of this patent
Estimating the term…
Abstract
An apparatus for processing a source of compressed digital video and control data occuring in transport packets. The apparatus comprises a deriving means responsive to the source for deriving copy control data from the transport packets. A generating means responsive to the copy control data for generating a copy control word. A forming means for forming a superpacket including the copy control word and the transport packets.
Claims28
Apparatus for processing a source of compressed digital video and control data occurring in transport packets and including means responsive to said source for deriving copy control data from said transport packets, comprising:
- means responsive to said copy control data for generating a copy control word;
- means for forming a superpacket including said copy control word and said transport packets;
- and,
- means coupled to said forming means for coupling said superpacket including said copy control word and said transport packets to a data bus.
Apparatus for processing a source of digital video and control data occurring in transport packets, comprising:
- means responsive to said source for deriving copy control data from said transport packets;
- and,
- control means responsive to said copy control data for controlling coupling of said transport packets to a data bus for transmission and for controlling transport packet signal decoding, wherein said copy control data being representative of copying permitted said control means enables coupling of said transport packets to said bus and disables transport packet signal decoding.
Apparatus for copying compressed digital video and control data occurring in a superpacket, said apparatus comprising:
- source of said superpacket wherein said
- superpacket includes a copy control word and a transport packet;
- means responsive to said source of said superpacket for reading said copy control word from said superpacket;
- means coupled to said source for copying said superpacket to a medium;
- and,
- control means responsive to said copy control word for controlling copying by said copying means.
A recording device comprising:
- receiving means responsive to a source of compressed digital video and control data occurring in transport packets and including data for copy control, said receiving means being responsive to a copy control word, coupled thereto and generated responsive to said copy control data, wherein said receiving means of said recording device periodically receives said copy control word and absent equality between said copy control word and said copy control data said recording device assumes a copy prohibited status.
Apparatus for recording compressed digital video and control data occurring in transport packets, comprising:
- first means coupled for receiving a superpacket signal including a copy control word and a transport packet;
- second means coupled for receiving control data including data representative of copy control data;
- means coupled to said first receiving means for reading said copy control word from said superpacket;
- means coupled to said receiving means for copying said superpacket;
- and,
- control means coupled to said reading means and said second receiving means for controlling said copying means responsive to correspondence between information represented by said copy control word and information represented by said control data representative of said copy control data.
Apparatus for processing a source of digital video and control data occurring in transport packets, comprising:
- means responsive to said source for deriving copy control data from said transport packets;
- and,
- control means coupled to a bus for determining an apparatus presence at a destination and responsive to said copy control data controlling coupling of said transport packets to said destination,
- wherein said copy control data being representative of copying prohibited and said control means determines a presence of a replicating apparatus at said destination said control means inhibits coupling of said transport packets to said destination, and in a second condition said control means determines an absence of said replicating apparatus said control means enables coupling of said transport packets to said destination.
Dependencies are inferred from the claim text.