Digital video broadcast system
First Claim
1. A broadcast system for preparing a series of broadcast events for transmission in a bandwidth adjusted multiplexed form, the system comprising:
- at least one service tool operative to supply service information useful for selecting, from said series of broadcast events, broadcast events to be viewed by subscribers of the broadcast system;
a conditional access (CA) unit operative to apply conditional access attributes to said series of the broadcast events; and
transmission synchronizing apparatus operatively associated with said CA unit and said at least one service tool and operative to adjust transmission bandwidth allocated to said series of broadcast events in response to instructing the CA unit to blackout a particular event from said series of broadcast events to subscribers that are refused access to said particular event and instructing the at least one service tool to provide a replacement service to said subscribers that are refused access to said particular event.
8 Assignments
0 Petitions
Accused Products
Abstract
Transmission synchronization and bandwidth adjustment in a broadcast system are described. At least one service tool in the broadcast system supplies service information useful for selecting, from a series of broadcast events, broadcast events to be viewed by subscribers of the broadcast system. A conditional access (CA) unit in the broadcast system applies conditional access attributes to the series of broadcast events. Transmission synchronizing apparatus in the broadcast system synchronizes the CA unit and the at least one service tool by instructing the CA unit to blackout a particular event from the series of broadcast events to subscribers that are refused access to the particular event and instructing the at least one service tool to provide a replacement service to the subscribers that are refused access to the particular event. Alternatively or additionally, the transmission synchronizing apparatus adjusts transmission bandwidth allocated to the series of broadcast events in response to instructing the CA unit to blackout the particular event to subscribers that are refused access to the particular event and instructing the at least one service tool to provide the replacement service to the subscribers that are refused access to the particular event. Related apparatus and method are also described.
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Citations
11 Claims
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1. A broadcast system for preparing a series of broadcast events for transmission in a bandwidth adjusted multiplexed form, the system comprising:
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at least one service tool operative to supply service information useful for selecting, from said series of broadcast events, broadcast events to be viewed by subscribers of the broadcast system;
a conditional access (CA) unit operative to apply conditional access attributes to said series of the broadcast events; and
transmission synchronizing apparatus operatively associated with said CA unit and said at least one service tool and operative to adjust transmission bandwidth allocated to said series of broadcast events in response to instructing the CA unit to blackout a particular event from said series of broadcast events to subscribers that are refused access to said particular event and instructing the at least one service tool to provide a replacement service to said subscribers that are refused access to said particular event. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for preparing a series of broadcast events for transmission in a bandwidth adjusted multiplexed form, the method comprising:
providing at least one service tool operative to supply service information useful for selecting, from said series of broadcast events, broadcast events to be viewed by subscribers of the broadcast system and a conditional access (CA) unit operative to apply conditional access attributes to said series of broadcast events; and
adjusting, a transmission synchronizing apparatus operatively associated with said CA unit, transmission bandwidth allocated to said series of broadcast events from said series of broadcast events to subscribers that are refused access to said particular event and instructing the at least one service tool to provide a replacement service to said subscribers that are refused access to said particular event.- View Dependent Claims (9, 10, 11)
Specification