Restrictive access control system
First Claim
1. In a satellite receiver having a dish-like movable antenna and including user-responsive selector means and a tuner wherein user commands to said selector means representing a plurality of site specific receiver operating parameters and selected channel number data are provided to said receiver and tuner for tuning said satellite receiver to a selected channel, a restrictive access control system for limiting signal receiver tuning to only authorized channels, said system comprising:
- memory means for storing selected ones of said plurality of site specific receiver operating parameters and selected channel number data;
viewer responsive 3-state switch means characterized by a first state wherein all channels may be viewed, a second state wherein only authorized channels may be viewed, and a third state for designating authorized channels for viewing in said second state, said 3-state switch means including authorization means for preventing transition of said switch means to either said first state or said third state from said second state except when authorized by a user; and
controller means coupled to said selector means, said 3-state switch means, said memory means and to said receiver for providing said selected ones of said plurality of site specific receiver operating parameters and data representing a selected channel number to the receiver and tuner for tuning to a selected channel when said switch means is in said first state, for providing said selected ones of said plurality of site specific receiver operating parameters and data representing an authorized channel number to said memory means for storage therein when said switch means is in said third state, and for reading from said memory means said selected ones of said plurality of site specific receiver operating parameters and authorized channel number data stored therein and for providing said selected ones of said plurality of site specific receiver operating parameters and authorized channel number data to said receiver and tuner in tuning said signal receiver to an authorized channel when said switch means is in said second state.
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Accused Products
Abstract
A restrictive access control system includes a 3-state switch for controlling the operating mode of the system and limiting tuning access to only designated channels. Tuning information is provided to a microprocessor via a control panel keyboard for storage in a nonvolatile memory and for subsequent recall therefrom when desired channel information is entered in the control panel by a viewer. In one embodiment, a 3-position key actuated switch has a first OFF position, a second PROGRAM position, and a third ON position. In the ON and OFF positions, the key may be removed from the switch while in the second PROGRAM position the key may not be removed from the switch. Programming of the nonvolatile memory may only be accomplished with the key in second PROGRAM position for storing either desired channels or locking out undesired channels. From the second PROGRAM position, the key may be turned to either the first OFF position for viewing all available channels or to the third ON position whereupon only authorized channels can be viewed. Turning the switch between the various positions, or modes of operation, is not possible without the key so as to provide a high level of viewing security, while affording the key bearer not only channel programming access, but also the capability of limiting tuning access to only designated channels. Other embodiments include (1) a two position key switch with key detector and limited access control selector and (2) program and limited access control selectors in combination with an optical card reader.
288 Citations
18 Claims
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1. In a satellite receiver having a dish-like movable antenna and including user-responsive selector means and a tuner wherein user commands to said selector means representing a plurality of site specific receiver operating parameters and selected channel number data are provided to said receiver and tuner for tuning said satellite receiver to a selected channel, a restrictive access control system for limiting signal receiver tuning to only authorized channels, said system comprising:
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memory means for storing selected ones of said plurality of site specific receiver operating parameters and selected channel number data; viewer responsive 3-state switch means characterized by a first state wherein all channels may be viewed, a second state wherein only authorized channels may be viewed, and a third state for designating authorized channels for viewing in said second state, said 3-state switch means including authorization means for preventing transition of said switch means to either said first state or said third state from said second state except when authorized by a user; and controller means coupled to said selector means, said 3-state switch means, said memory means and to said receiver for providing said selected ones of said plurality of site specific receiver operating parameters and data representing a selected channel number to the receiver and tuner for tuning to a selected channel when said switch means is in said first state, for providing said selected ones of said plurality of site specific receiver operating parameters and data representing an authorized channel number to said memory means for storage therein when said switch means is in said third state, and for reading from said memory means said selected ones of said plurality of site specific receiver operating parameters and authorized channel number data stored therein and for providing said selected ones of said plurality of site specific receiver operating parameters and authorized channel number data to said receiver and tuner in tuning said signal receiver to an authorized channel when said switch means is in said second state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. In a satellite receiver having a dish-like movable antenna and including user-responsive selector means and a tuner wherein user commands to said selector means representing selected channel number data are provided to said tuner for tuning said satellite receiver to a selected channel, said signal receiver further including a plurality of site specific controllable functions, a restrictive access control system for limiting signal receiver tuning to only authorized channels and for limiting control over said signal receiver, said system comprising:
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memory means for storing selected channel number and site specific receiver controllable functions data; viewer responsive 3-state switch means characterized by a first state wherein all channels may be viewed, a second state wherein only authorized channels may be viewed, and a third state for designating authorized channels for viewing in said second state, said 3-state switch means including authorization means for preventing transition of said switch means to either said first state or said third state from said second state except when authorized by a user; controller means coupled to said selector means, said 3-state switch means, said memory means and to said receiver for providing data representing a plurality of selected site specific receiver controllable functions and a selected channel number to the receiver and tuner for tuning to a selected channel when said switch means is in said first state, for providing data representing a plurality of authorized receiver controllable functions and an authorized channel number to said memory means for storage therein when said switch means is in said third state, and for reading from said memory means said plurality of authorized receiver controllable functions and authorized channel number data stored therein and for providing said plurality of authorized receiver controllable functions and authorized channel number data to said receiver and tuner in tuning said signal receiver to an authorized channel when said switch means is in said second state; and means for enabling operation of selected ones of said plurality of site specific receiver controllable functions only when said switch means is in said third state.
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Specification