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| Number | Title | Issue Date |
| 7680889 | Use of browser history file to determine web site reach In a method of metering Web usage, a collection program is downloaded from a server to a metered computer in response to a message transmitted from the metered computer to the server, and the collection program is executed on the metered computer in order to collect... | 03/16/2010 |
| 7523124 | Methods and apparatus for improving data warehouse performance Methods and apparatus for improving data warehouse performance are disclosed. An example method to format data received from a data warehouse includes receiving an analysis instruction, retrieving data from the data warehouse based on the analysis instruction, and a... | 04/21/2009 |
| 7460684 | Method and apparatus for embedding watermarks Methods and apparatus for embedding a watermark are disclosed. In an example method, one or more frames associated with a compressed digital data stream (240) is identified. Each of the one or more frames is unpacked to determine a plurality of transform coef... | 12/02/2008 |
| 7421723 | Detection of media links in broadcast signals A detection apparatus includes a tuner tuned to the program and a meter coupled to the tuner and arranged to detect content ancillary information from the program tuned by the tuner. The content ancillary information may be a media link, closed captioning informatio... | 09/02/2008 |
| 7421628 | Methods and apparatus to extract codes from a plurality of channels Methods and apparatus to extract audio codes are disclosed. An example method includes receiving signals on a plurality of channels and ranking the signals based on at least one characteristic of the signals. A first channel from the plurality of channels is selecte... | 09/02/2008 |
| 7386473 | Content display monitoring by a processing system The invention can enable monitoring of the display of content by a computer system. Moreover, the invention can enable monitoring of the displayed content to produce monitoring information from which conclusions may be deduced regarding the observation of the displa... | 06/10/2008 |
| 7353171 | Methods and apparatus to operate an audience metering device with voice commands Methods and apparatus to operate an audience metering device with voice commands are described herein. In an example method, at least one of a television program audio signal or a voice command from an audience member is transduced into an audio input signal. Based ... | 04/01/2008 |
| 7343615 | Television proximity sensor Systems and methods for determining whether a television is on and in near proximity are provided. An example system includes a sensor, an analog-to-digital converter, and a digital signal processor. The digital signal processor processes a set of digital audio samp... | 03/11/2008 |
| 7248777 | Methods and apparatus to detect content skipping by a consumer of a recorded program Methods and apparatus to detect content skipping by a consumer of a recorded program are disclosed. In a disclosed method, a plurality of recording times of sections of a recorded program are stored in association with playback times of the recorded program. Playbac... | 07/24/2007 |
| 7203338 | Methods and apparatus to count people appearing in an image Methods and apparatus to count people appearing in an image are disclosed. One disclosed method reduces objects appearing in a series of images to one or more blobs; for each individual image in a set of the images of the series of images, represents the one or more... | 04/10/2007 |
| 7117513 | Apparatus and method for detecting and correcting a corrupted broadcast time code An apparatus and method for processing audience measurement data detects and corrects one or more corrupted time codes. The corrupted time codes are identified by calculating a first set of intervals between a set of read times that may, but need not, be consecutive... | 10/03/2006 |
| 7100181 | Television proximity sensor Systems and methods for determining whether a television is on and in as near proximity are provided. An example system includes a sensor, an analog-to-digital converter, and a digital signal processor. The digital signal processor processes a set of digital audio s... | 08/29/2006 |
| 7039931 | Multi-market broadcast tracking, management and reporting method and system A method of analyzing multi-market broadcasts of commercial advertisements, has unique identifiers are assigned to a plurality of expected commercial advertisements, information regarding the plurality of expected commercial advertisements and respective unique iden... | 05/02/2006 |
| 7006555 | Spectral audio encoding Blocks of audio are encoded based upon corresponding first and second frequencies. The first and second frequencies are hopped from block to block. An audio quality measure (AQM) is computed for each block of audio such that, if x out of y blocks of audio have an AQ... | 02/28/2006 |
| 6968564 | Multi-band spectral audio encoding An encoder includes a sampler that samples an audio signal and that generates from the samples a plurality of short blocks of sampled audio. Each of the short blocks has a duration less than a minimum audibly perceivable signal delay. A processor combines the plural... | 11/22/2005 |
| 6901606 | Method and apparatus for detecting time-compressed broadcast content A method and apparatus for detecting time compression of broadcast content that has been encoded with time data, includes a processor for comparing encoded time data with broadcast time data to determine whether the content has been time compressed. The method and a... | 05/31/2005 |
| 6879652 | Method for encoding an input signal An encoder transforms at least a portion of a signal, counts the resulting transform coefficients having a zero value, and encodes the signal with the zero count. A decoder decodes the signal in order to recover the zero count. The decoder may also determine its own... | 04/12/2005 |
| 6807230 | Broadcast encoding system and method An encoder is arranged to add a binary code bit to block of a signal by selecting, within the block, (i) a reference frequency within the predetermined signal bandwidth, (ii) a first code frequency having a first predetermined offset from the reference frequency, an... | 10/19/2004 |
