Abstract: A system for location verification and enforcement receives an authorization request to access content from a content access device. The authorization request includes and/or is associated with location information obtained from a gateway device via a local area network and determined using multiple communication networks. The location information is compared to a record indicating that the content access device and the gateway device were both present at a location. When the location information matches the record, an authorization is transmitted to the content access device. The content access device may be operative to access the content upon receiving the authorization.

Abstract: A content access device ranks content that is available to be accessed based at least on previous user content selection behavior information compared to a current situation. The content access device generates and presents a content access (or navigation) menu that indicates content selected based on the ranking. The menu may include a primary menu element that corresponds to and presents a highest ranked of the content, a secondary menu element that corresponds to and presents still images of a secondary ranked group of the content that are all smaller than the primary menu element, and a tertiary menu element that corresponds to and presents text descriptions of a tertiary ranked group of the content that are all smaller than the still images.

Abstract: A system for location verification and enforcement receives an authorization request to access content from a content access device. The authorization request includes and/or is associated with location information obtained from a gateway device via a local area network and determined using multiple communication networks. The location information is compared to a record indicating that the content access device and the gateway device were both present at a location. When the location information matches the record, an authorization is transmitted to the content access device. The content access device may be operative to access the content upon receiving the authorization.

Abstract: A system for location verification and enforcement receives an authorization request to access content from a content access device. The authorization request includes and/or is associated with location information obtained from a gateway device via a local area network and determined using multiple communication networks. The location information is compared to a record indicating that the content access device and the gateway device were both present at a location. When the location information matches the record, an authorization is transmitted to the content access device. The content access device may be operative to access the content upon receiving the authorization.

Abstract: A system for location verification and enforcement receives an authorization request to access content from a content access device. The authorization request includes and/or is associated with location information obtained from a gateway device via a local area network and determined using multiple communication networks. The location information is compared to a record indicating that the content access device and the gateway device were both present at a location. When the location information matches the record, an authorization is transmitted to the content access device. The content access device may be operative to access the content upon receiving the authorization.

Abstract: A content access device ranks content that is available to be accessed based at least on previous user content selection behavior information compared to a current situation. The content access device generates and presents a content access (or navigation) menu that indicates content selected based on the ranking. The menu may include a primary menu element that corresponds to and presents a highest ranked of the content, a secondary menu element that corresponds to and presents still images of a secondary ranked group of the content that are all smaller than the primary menu element, and a tertiary menu element that corresponds to and presents text descriptions of a tertiary ranked group of the content that are all smaller than the still images.

Abstract: A content access device ranks content that is available to be accessed based at least on previous user content selection behavior information compared to a current situation. The content access device generates and presents a content access (or navigation) menu that indicates content selected based on the ranking. The menu may include a primary menu element that corresponds to and presents a highest ranked of the content, a secondary menu element that corresponds to and presents still images of a secondary ranked group of the content that are all smaller than the primary menu element, and a tertiary menu element that corresponds to and presents text descriptions of a tertiary ranked group of the content that are all smaller than the still images.

Abstract: A broadband communications system for coupling telephony or other digital networks to a CTV network. The system includes transmitting a multiplex of telephony signals in 3 MHz channels in the forward band of the CTV network. Each 3 MHz channel is QPR modulated on a carrier and contains multiple subscriber telephony signals. The forward telephony channels are demodulated and demultiplexed by a plurality of subscriber terminals into the individual telephony signals directed to an addressed subscriber. The individually addressed telephony signal is then applied to a line card which connects the subscriber telephone equipment to the system. Audio and control signals returning from the subscriber are digitized into standard telephony signals and modulated on a carrier in 50 kHz reserved telephony channels onto the reverse band of the CTV network.

Abstract: A digital line sensor includes a voltage sensor which receives transmission of unipolar pulses. A pulse former, coupled to receive the output of the voltage sensor, is coupled to an analog integrator, which, in turn, is coupled to an energy sensor, The digtial line sensor utilizes a comparator circuit for the voltage sensor and a Schmitt trigger for the energy sensor. The analog integrator includes a resistor between the output of the pulse former and the input of the energy sensor. One electrode of a diode is coupled to the output of the pulse former, the second electrode being coupled to the input of the energy sensor. A capacitor is coupled across the input of the energy sensor and a point of reference potential. The digital line sensor can include a first Schmitt trigger adapted to receive transmission of unipolar pulses, the inverted output of which is again inverted by an inverter. An analog integrator couples the output of the inverter to a second Schmitt trigger.