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| Number | Title | Issue Date |
| 5699104 | Broadcast channel lock system A broadcasting channel lock system including a broadcasting device for transmitting a broadcasting signal via one or more of a plurality of channels, and a receiving device for receiving the broadcasting signal. The receiving device is provided with a loc... | 12/16/1997 |
| 5485518 | Electronic media program recognition and choice A method and apparatus for electronic media program recognition and choice are disclosed. The invention allows parental control of the individual television programs (e.g., series, episodes, or individual music videos) and radio programs that can be viewe... | 01/16/1996 |
| 5465113 | Programmable channel regulating cable television controller The programmable cable controller in accordance with the invention is adapted to accept a time limit and a time period which are input by a viewer. A channel timer is provided to track the display time of the cable television channel and, upon reaching th... | 11/07/1995 |
| 5382983 | Apparatus and method for total parental control of television use An apparatus for parental control of television use by excluding or including selected programs, channels, and/or times. The apparatus includes a command controller comprising a microprocessor, a read only memory, a memory for authorized identification nu... | 01/17/1995 |
| 5020129 | Addressable control system for CATV program distribution Remote control of subscriber access to premium programs on a cable television system or the like is provided. A signal path carriers program signals received from a cable television system. A switchable port coupled to the signal path is identified by a l... | 05/28/1991 |
| 5001554 | Terminal authorization method A terminal apparatus for use in a cable television system which provides a plurality of channels capable of being tuned for display at a television receiver is provided. The apparatus includes a memory for storing data for generating a plurality of predet... | 03/19/1991 |
| 4896354 | Image reception system An image reception system is disclosed, which includes a tuner for selecting one of broadcast channels of CATV, a video detector connected to the tuner for deriving output signals having video signals and command data of the selected channel, a data fetch... | 01/23/1990 |
| 4768229 | Restrictive access control system 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 stor... | 08/30/1988 |
| 4718107 | Parental control for CATV converters A controller in a CATV converter provides three operating modes comprising: (1) a family viewing mode in which conversion of selected channels is blocked; (2) an enter access code mode for selecting the channels to be blocked from family viewing; and (3) ... | 01/05/1988 |
| 4685131 | Program blocking method for use in direct broadcast satellite system Programming tiers are authorized for viewing on an impulse pay-per-view basis. The system operator controls individual receiver units to block the display of programming on selected tiers because the subscriber finds the content of same objectionable or t... | 08/04/1987 |
| 4620229 | Picture display device A picture display apparatus has respective modes in which it displays at least three different types of pictures in sequence in response to actuations of a single switch. The picture display apparatus may be incorporated within a conventional television r... | 10/28/1986 |
| 4599646 | Method and apparatus for identifying unauthorized or defective converter/decoder boxes in CATV system A head-end apparatus for a CATV system is provided for facilitating identification of unauthorized or defective converter/decoder boxes in the system. According to the invention, an IF audio signal, representing the aural portion of the program source to ... | 07/08/1986 |
| 4523190 | Local exchange equipment for a cable network Switching system for transmitting program or data signals from an exchange to a number of subscriber posts, in which the processing of selection signals received by the exchange from the subscriber posts, the tuning of oscillators in the exchange, and the... | 06/11/1985 |
| 4510623 | Television channel lockout An electronically tuned television receiver is provided with a channel lockout feature to control viewer program selection. The television receiver has a tuner local oscillator (101), the frequency of which is controlled by a phase lock loop (12) having a... | 04/09/1985 |
| 4058830 | One way data transmission system There is provided a one-way data transmission system wherein a transmitter station transmits in the form of data packs data from a plurality of channels, the said packs being time multiplexed. One channel amongst the plurality of channels is allotted to transm... | 11/15/1977 |
