1
Trevor Blumenau: Content display monitor. Nielsen Media Research, Engage Technologies, David R Graham, August 22, 2000: US06108637 (381 worldwide citation)

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 displayed content by an observer. The in ...


2
Daozheng Lu, Ceril T Shagrin, William L Thomas, Morris Lee, Bruce Bernard, Jia Zhang: Audience measurement system and method. Nielsen Media Research, Marshall O Toole Gerstein Murray & Borun, June 23, 1998: US05771307 (279 worldwide citation)

In a passive identification apparatus for identifying a predetermined individual member of a television viewing audience in a monitored viewing area, a video image of a monitored viewing area is captured. A template matching score is provided for an object in the video image. A Eigenface recognition ...


3
Venugopal Srinivasan: Broadcast encoding system and method. Nielsen Media Research, Marshall O&apos Toole Gerstein Murray & Borun, August 7, 2001: US06272176 (211 worldwide citation)

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, and (iii) a second code frequency ha ...


4
Donald Wadia Moses, Daozheng Lu: Simultaneous transmission of ancillary and audio signals by means of perceptual coding. Donald W Moses, Nielsen Media Research, Haynes & Boone L, March 7, 2000: US06035177 (197 worldwide citation)

A communication system for simultaneously transmitting ancillary codes and audio signals via a conventional audio communications channel using perceptual coding techniques is disclosed. An encoder monitors an audio channel to detect "opportunities" to insert an ancillary code such that the inserted ...


5
Daozheng Lu, David H Harkness: Coded/non-coded program audience measurement system. Nielsen Media Research, Grossman & Flight, November 11, 2003: US06647548 (180 worldwide citation)

An audience measurement system identifies a program which is broadcast from a signal source and to which a receiver is tuned. The audience measurement system includes a code reader for reading an ancillary code of the program to which the receiver is tuned, a channel status detector for determining ...


6
Enrico Massetti, Kenneth L Straub: Receiver monitoring system with local encoding. Nielsen Media Research, Marshall O Toole Gerstein Murray & Borun, December 15, 1998: US05850249 (147 worldwide citation)

An audience measurement system meters tuning of a receiver which receives a plurality of program signals transmitted over a plurality of channels. The receiver is located in an audience site within a dwelling, and the plurality of program signals enter the dwelling through a service entrance and are ...


7
Edgar W Aust, Daozheng Lu: Audience measurement system incorporating a mobile handset. Nielsen Media Research, Katten Muchin Zavis, October 15, 2002: US06467089 (145 worldwide citation)

An audience measurement system for a receiver comprises monitoring equipment, such as a decoder, ON/OFF detector and transmitter, coupled to the receiver. The decoder reads program codes embedded in a program received by the receiver. The system also comprises a base unit and a mobile unit, such as ...


8
Trevor Blumenau: Tracking of internet advertisements using banner tags. Nielsen Media Research, Katten Muchin Zavis Rosenman, August 13, 2002: US06434614 (113 worldwide citation)

Each of a plurality of advertising meters operates on a computer at a corresponding statistically selected site. Each advertising meter is arranged to detect tags from click-through URLs in advertising banners contained in messages communicated to the computer from remote content suppliers over a co ...


9
Robert A Dougherty, David A Kiewit, Daozheng Lu, Henry B Wheeler: Co-channel transmission of program signals and ancillary signals. Nielsen Media Research, Marshall O Toole Gerstein Murray & Borun, April 7, 1998: US05737025 (111 worldwide citation)

In the present invention, an ancillary code is added to a composite video signal in its active video portion. The ancillary code may be spread over several frequencies and summed at the output of a decoder to enhance the legibility of the ancillary code at the output of the decoder. Frequency-steppi ...


10
Henry B Wheeler, Daozheng Lu: Source detection apparatus and method for audience measurement. Nielsen Media Research, Grossman & Flight, January 6, 2004: US06675383 (108 worldwide citation)

A system identifies which of first and second signal sources is supplying a program signal to a monitored receiver. The first and second signal sources and the monitored receiver are located in a household. The system extracts a reference program signature representative of an output of the monitore ...



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