Abstract: A digital device having an image-handling function, adapted to be held at a level between a user's shoulder level and the user's hip level and directed toward a scene, comprising: a display located on a first surface of the device; an image capture component comprising a lens locatable adjacent a second surface, the lens being adapted to capture a field of view having a center lying on an axis substantially parallel to the first surface; a spatial attitude detector for detecting a current attitude of the device relative to a baseline attitude; a selector for selecting a portion of the field of view according to the baseline attitude; a distortion corrector for correcting distortion of the view caused by an angular difference between the current attitude and the baseline attitude; and a renderer for rendering a corrected image by the distortion corrector on the display.

Abstract: A data feed server configured for tracking usage of a data feed includes a data feed server configured to respond to polls from client computers and transmit a data feed in response to a poll from a client computer. The data feed server is further configured to received usage data from a client computer that indicates usage of the data feed at the client computer. A client computer for accessing a data feed includes a client computer configured to communicate with at least one data feed server that publishes a data feed. The client computer selectively polls the data feed server for the data feed. The client computer is further configured to record usage data indicating usage of the data feed at the client computer and, in a subsequent polling of the data feed sever, report the usage data for the data feed to the data feed server.

Abstract: A digital device having an image-handling function, adapted to be held at a level between a user's shoulder level and the user's hip level and directed toward a scene, comprising: a display located on a first surface of the device; an image capture component comprising a lens locatable adjacent a second surface, the lens being adapted to capture a field of view having a center lying on an axis substantially parallel to the first surface; a spatial attitude detector for detecting a current attitude of the device relative to a baseline attitude; a selector for selecting a portion of the field of view according to the baseline attitude; a distortion corrector for correcting distortion of the view caused by an angular difference between the current attitude and the baseline attitude; and a renderer for rendering a corrected image by the distortion corrector on the display.

Abstract: A data feed server configured for tracking usage of a data feed includes a data feed server configured to respond to polls from client computers and transmit a data feed in response to a poll from a client computer. The data feed server is further configured to received usage data from a client computer that indicates usage of the data feed at the client computer. A client computer for accessing a data feed includes a client computer configured to communicate with at least one data feed server that publishes a data feed. The client computer selectively polls the data feed server for the data feed. The client computer is further configured to record usage data indicating usage of the data feed at the client computer and, in a subsequent polling of the data feed sever, report the usage data for the data feed to the data feed server.