Abstract: A method for watermarking an audio signal may include embedding in the audio signal a watermark that includes a plurality of mute intervals of a predetermined characteristics. A method for audience measuring may include, for each media content item of a multi-content media broadcast, embedding a unique watermark that includes a plurality of mute intervals of a predetermined characteristics in an audio signal of that media content item. The method may further include, at a media player that plays a media content item from multi-content media broadcast, acquiring the audio signal of the media content item being played. The method may further include detecting the embedded watermark in that audio signal and comparing the detected embedded watermark with the unique watermark of each of the media content items of the multi-content media broadcast to determine which media content item of the multi-content media broadcast was played by the media player.

Abstract: A computer implemented method for closed circuit TV broadcasting which comprises selecting content e.g. Internet content to be broadcast, scheduling the content to be broadcast as a closed circuit TV broadcast via channels in a plurality of sites, and distributing the content to a plurality of sites.

Abstract: A computer implemented method for closed circuit TV broadcasting which comprises selecting content e.g. Internet content to be broadcast, scheduling the content to be broadcast as a closed circuit TV broadcast via channels in a plurality of sites, and distributing the content to a plurality of sites.

Abstract: A scanner system includes a light source and scanning components for moving a spot of light across a surface along a scan line of predetermined length. An electronic control system is included for controlling the light beam in order to produce a plurality of pixels on the surface along the scan line. It is configured to control the position and exposure of each of the pixels in order to compensate for pixel position distortion and pixel exposure distortion caused by variations in spot velocity. Preferably, the control system produces a digital scan clock signal or other control signal that defines a pixel interval and an exposure interval for each of a plurality of desired pixel positions along the scan line according to stored pixel interval and exposure interval data.