Networked subscriber television distribution
First Claim
Patent Images
1. A system for transmitting from a headend facility a plurality of audio/video signals, the system comprising:
- a master set top for receiving the plurality of audio/video signals, the master set top comprising a plurality of tuners, each tuner for filtering and providing a portion of the plurality of audio/video signals to one of a viewing device and a remote device the remote device being controllable via a remote control device associated with, but separate from, the remote device; and
the remote device in communication with the master set top for receiving the portion of the plurality of audio/video signals from one of the plurality of tuners of the master set top, wherein when the portion of the plurality of audio/video signals received from the master set top includes more than one program, a demultiplexer operates to demultiplex a selected audio/video signal,wherein one of the plurality of tuners is responsive to one of the at least one remote device by receiving control information directly from the remote control device, without the control information being relayed by the remote device,wherein when the control information comprises a request for a channel change that encompasses a different portion of the plurality of audio/video signals, the master set top is configured to, initially, transmit the different portion encoded at a first low bit rate, and then subsequently encoded at second higher bit rate to the remote device upon a predetermined period of time passing without a channel change, wherein the encoding parameters are gradually changed to meet the encoding parameters of the second higher bit rate; and
wherein the control information further comprises a flag, wherein the flag comprises the decoding parameters of the second higher bit rate, and the predetermined bit pattern appended to the front and back of the decoding parameters.
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Abstract
A master device interactively distributes a television signal to a remote device for remote display with low latency between a user input and a television signal change.
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Citations
16 Claims
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1. A system for transmitting from a headend facility a plurality of audio/video signals, the system comprising:
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a master set top for receiving the plurality of audio/video signals, the master set top comprising a plurality of tuners, each tuner for filtering and providing a portion of the plurality of audio/video signals to one of a viewing device and a remote device the remote device being controllable via a remote control device associated with, but separate from, the remote device; and the remote device in communication with the master set top for receiving the portion of the plurality of audio/video signals from one of the plurality of tuners of the master set top, wherein when the portion of the plurality of audio/video signals received from the master set top includes more than one program, a demultiplexer operates to demultiplex a selected audio/video signal, wherein one of the plurality of tuners is responsive to one of the at least one remote device by receiving control information directly from the remote control device, without the control information being relayed by the remote device, wherein when the control information comprises a request for a channel change that encompasses a different portion of the plurality of audio/video signals, the master set top is configured to, initially, transmit the different portion encoded at a first low bit rate, and then subsequently encoded at second higher bit rate to the remote device upon a predetermined period of time passing without a channel change, wherein the encoding parameters are gradually changed to meet the encoding parameters of the second higher bit rate; and wherein the control information further comprises a flag, wherein the flag comprises the decoding parameters of the second higher bit rate, and the predetermined bit pattern appended to the front and back of the decoding parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A subscriber network for distributing a plurality of media content signals to a master set top and a plurality of remote devices, the subscriber network comprising:
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a master set top for receiving the plurality of media content signals, the master set top including a plurality of tuners, each tuner for providing a tuned media content signal to at least one of a television and remote devices; a first remote control device, associated with a first remote device, for controlling one of the plurality of tuners in the master set top, the first remote device receiving the tuned media content signal or the plurality of media content signals from the subscriber network and including a demultiplexer for selecting a program of one of the tuned media content signal or the plurality of media content signals when more than one program is present; and a second remote control device, associated with a second remote device, for controlling another one of the plurality of tuners in the master set top, the second remote device receiving the tuned media content signal or the plurality of media content signals from the subscriber network and including a demultiplexer for selecting a program of one of the tuned media content signal or the plurality of media content signals when more than one program is present, wherein the master set top, upon receipt of respective commands from the first and second remote control devices, selects respective tuned media content signals and forwards the tuned media content signals to the first and second remote devices wherein the command is received directly from the first and second remote control devices without the command being relayed by the first or second remote devices, wherein when a command comprises a request for a channel change that encompasses different tuned media content, the master set top is configured to, initially, transmit the different tuned media content encoded at a first low bit rate, and then subsequently encoded at second higher bit rate to at least one of the first or second remote devices upon a predetermined period of time passing without a channel change, wherein the encoding parameters are gradually changed to meet the encoding parameters of the second higher bit rate; and wherein the command creates control information comprising a flag, wherein the flag comprises the decoding parameters of the second higher bit rate, and the predetermined bit pattern appended to the front and back of the decoding parameters. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification