Abstract:
A program guide system is provided in which interactive television program guide advertisement usage is monitored. Advertisement usage may be monitored by monitoring when advertisements are transmitted from a television distribution facility to user television equipment. Advertisement usage information may also be monitored by monitoring when advertisements are received by the user television equipment. Advertisement usage information may also be monitored at the time at which advertisements are displayed by a program guide. Less important data may be filtered from the collected advertisement usage data. Other activities that may be monitored include the viewing activities of the user, which program guide screens are displayed, and which non-program-guide applications are used. Real-time ratings information (e.g., real-time ratings of the popularity of certain television programs, video games, or other applications) may be provided to users in real time.
Abstract:
Advanced features for interactive television applications are described, including a back feature, a forward feature, a history feature, a go to feature, an extras feature, a reminder feature, a favorites feature, a parental control feature, and a search feature. Features may be inter-resource. Support for multiple data paths, Internet access, interactive services, and user profiles are also described.
Abstract:
An interactive television system is provided in which targeted messages may be sent to users. The interactive television system may use an interactive television program guide or other interactive applications to provide interactive television services to users. An e-mail or other messaging application may be used to receive the messages. The messaging application may be separate from the program guide or other interactive television application or may be part of the program guide or other interactive television application. Messages may be targeted based on the television channels to which the user subscribes or based on which settings the user has established in the program guide or other application or based on any other suitable criteria.
Abstract:
A transport control interface may be provided by an interactive television program guide application to provide information, control or both for live and recorded video programming. The transport control interface may indicate to the user the time duration of a live or recorded program and any time segments of the program that have been recorded. The transport control interface may automatically adjust the start and end time shown to accommodate various factors such as continuous viewing on a particular channel, multiple recorded segments, buffer size, etc. Various information associated with the live or recorded video programming may be displayed in the transport control interface.
Abstract:
One or more systems, methods, or computer program products can include receiving an echo data set including information representative of an echo sensed by a transducer, provided at least in part by one or more actual targets included in a region of interest. The region of interest can be modeled, including selecting or generating an array manifold matrix including information corresponding to any one or more candidate targets. The weights of the candidate targets can be determined using the array manifold matrix and the echo data set, including minimizing an argument of a function modeling the weights of the candidate targets. In an example, the echo data set can be dithered, such as by adding a specified dithering signal.
Abstract:
The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
Abstract:
The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
Abstract:
The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
Abstract:
The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.