Abstract: Video content is a time varying presentation of scenes or video frames. Each frame can contain a number of scene elements such as actors, foreground items, background items, or other items. A person enjoying video content can select a scene element by specifying a screen coordinate while the video content plays. Frame specification data identifies the specific frame or scene being displayed when the coordinate is selected. The coordinate in combination with the frame specification data is sufficient to identify the scene element that the person has chosen, information about the scene element can then be presented to the person. An annotation database can relate the scene elements to the frame specification data and coordinates.

Abstract: Text, voice, and video messaging techniques and social networks are enhanced with geolocation and permissions information. Basic messaging has a publisher publishing a message and subscribers receiving the message. Permissions can limit the publisher to publishing only into certain geographic zones. Recipients within a zone receive the message and other people or devices do not. Recipients can choose to subscribe to additional geographic zones to thereby receive messages directed into that zone. Publisher and subscriber zones do not need to cover the same geographic areas. Zones can be predefined or can be dynamically created, perhaps on a per message basis.

Abstract: Text, voice, and video messaging techniques and social networks are enhanced with geolocation and permissions information. Basic messaging has a publisher publishing a message and subscribers receiving the message. Permissions can limit the publisher to publishing only into certain geographic zones. Recipients within a zone receive the message and other people or devices do not. Recipients can choose to subscribe to additional geographic zones to thereby receive messages directed into that zone. Publisher and subscriber zones do not need to cover the same geographic areas. Zones can be predefined or can be dynamically created, perhaps on a per message basis.

Abstract: A convenient electronic sound producing device is an electronic sound producing device that is physically configured to be easy to use in the field. A control module faces the use while the sound is projected away from the user. A pistol grip can be used to ease holding and using the call. A remote can further ease operation and allow control from a distance. A timer allows for nearly autonomous operation. Control modules can be fixed to a firearm, bow, crossbow, or camera to minimize the user's movement while simultaneously calling and preparing for a shot. A pinning hole or a stake can allow for reliably fixing the sound producing device to a surface, to vegetation, or to other objects.

Abstract: A cell phone based sound producing device is a sound producing device that takes advantage of the likelihood that a user is already carrying a cell phone and does not need to also carry an electronic sound producing device. Another advantage is that cell phones are designed to communicate across a communications network. As such, the cell phone based sound producing device can download sounds from a server, store them, and play them. Electronic payment systems for ring tones that are played on a cell phone already exist. These electronic payment systems can be adapted to payment for sound producing device modules and for sounds. Recovery information can be used to restore modules and sounds that are lost due to cell phone breakage or upgrades.

Abstract: Video content is a time varying presentation of scenes or video frames. Each frame can contain a number of scene elements such as actors, foreground items, background items, or other items. A person enjoying video content can select a scene element by specifying a screen coordinate while the video content plays. Frame specification data identifies the specific frame or scene being displayed when the coordinate is selected. The coordinate in combination with the frame specification data is sufficient to identify the scene element that the person has chosen, information about the scene element can then be presented to the person. An annotation database can relate the scene elements to the frame specification data and coordinates.

Abstract: A cell phone based sound producing device is a sound producing device that takes advantage of the likelihood that a user is already carrying a cell phone and does not need to also carry an electronic sound producing device. Another advantage is that cell phones are designed to communicate across a communications network. As such, the cell phone based sound producing device can download call sounds from a server, store them, and play them. Electronic payment systems for ring tones and games that are played on a cell phone already exist. These electronic payment systems can be easily adapted for payment of sound producing device modules and sound producing device sounds. Recovery information can be used to restore modules and sounds that are lost due to cell phone breakage or upgrades.

Abstract: A cell phone based sound producing device is a sound producing device that takes advantage of the likelihood that a user is already carrying a cell phone and does not need to also carry an electronic sound producing device. Another advantage is that cell phones are designed to communicate across a communications network. As such, the cell phone based sound producing device can download call sounds from a server, store them, and play them. Electronic payment systems for ring tones and games that are played on a cell phone already exist. These electronic payment systems can be easily adapted for payment of sound producing device modules and sound producing device sounds. Recovery information can be used to restore modules and sounds that are lost due to cell phone breakage or upgrades.