Patent ID: 7343615
Filing Date: 2008-03-11
Classification: H04H

Abstract:
1. A television proximity sensor system, comprising: an audio sensor configured to detect at least one of an audio code and an audio signature to identify a tuned television program, the audio sensor being configured to detect a predetermined audio signal emitted by a television when the television is on, the audio sensor being configured to detect the predetermined audio signal when there is no wall or floor between the television and the audio sensor and to not detect the predetermined audio signal when there is a wall or floor between the television and the audio sensor; an analog-to-digital converter in communication with the audio sensor, and configured to convert the detected audio signal into a set of digital audio samples; and a digital signal processor in communication with the analog-to-digital converter, the digital signal processor being configured to attempt to process the set of digital audio samples and to cause the at least one of the audio code and the audio signature to be disregarded when the predetermined audio signal is not detected.