A Channel Dependent Authorization Method For Pay-per-view And Impulse Pay-Per-View Services (1986)
By Thomas E. O'brien, General Instrument Corporation
Authorization of pay services by channel number has until now been adequate because only one service is contained within each channel. Pay-per-view and impulse pay-per-view services require channel sharing, thereby placing greater demands on authorization control systems and increasing the complexity and cost of addressable set-top terminals. An improved authorization method is described and it is shown how, by introducing the concept of authorization by code number, dependence on the tuned channel can be eliminated. The equipment required to support this method is described and a pay-per-view example is given.
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