Methods and apparatus to determine a state of a media presentation device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04N-021/442
H04N-021/439
H04N-021/422
H04N-021/81
G10L-025/51
H04H-060/37
H04H-060/58
H04H-060/65
G10L-019/018
출원번호
US-0926885
(2015-10-29)
등록번호
US-9924224
(2018-03-20)
발명자
/ 주소
Srinivasan, Venugopal
Lee, Morris
Davis, Jeremey M.
출원인 / 주소
The Nielsen Company (US), LLC
대리인 / 주소
Hanley, Flight and Zimmerman, LLC
인용정보
피인용 횟수 :
1인용 특허 :
277
초록▼
Methods and apparatus to determine a state of a media presentation device are disclosed. Example disclosed methods include generating a first set of weighted coefficients based on first audio received by first and second microphones at a first time. Example disclosed methods include generating a sec
Methods and apparatus to determine a state of a media presentation device are disclosed. Example disclosed methods include generating a first set of weighted coefficients based on first audio received by first and second microphones at a first time. Example disclosed methods include generating a second set of weighted coefficients based on second audio received by the first and second microphones at a second time after the first time. Example disclosed methods include comparing the first set of coefficients and the second set of coefficients to generate a similarity value. Example disclosed methods include, when the similarity value satisfies a threshold, determining that the media presentation device is in a first state. Example disclosed methods include, when the similarity value does not satisfy the threshold, determining that the media presentation device is in a second state.
대표청구항▼
1. A method of determining a state of a media presentation device, the method comprising: generating, using an echo cancellation algorithm, a first set of weighted coefficients based on first audio received by first and second microphones at a first time;generating, using the echo cancellation algor
1. A method of determining a state of a media presentation device, the method comprising: generating, using an echo cancellation algorithm, a first set of weighted coefficients based on first audio received by first and second microphones at a first time;generating, using the echo cancellation algorithm, a second set of weighted coefficients based on second audio received by the first and second microphones at a second time after the first time;comparing the first set of weighted coefficients and the second set of weighted coefficients by calculating a dot product between the first set of weighted coefficients and the second set of weighted coefficients to generate a similarity value;when the similarity value satisfies a first threshold, determining that the media presentation device is in a first state;when the similarity value does not satisfy the first threshold, determining that the media presentation device is in a second state; andcontrolling a metering device based on whether the media presentation device is in the first state or the second state. 2. The method of claim 1, further including: when the media presentation device is in the first state, extracting a watermark from the second audio. 3. The method of claim 1, wherein the generating of the first and second sets of weighted coefficients includes applying the echo cancellation algorithm using a finite impulse response filter to generate the first set of weighted coefficients and to generate the second set of weighted coefficients. 4. The method of claim 1, wherein the first state includes an on state, and wherein the second state includes an off state. 5. The method of claim 1, further including: applying a third set of weighted coefficients to one or more samples of third audio received by the first microphone to provide a filter output;comparing the filter output to a sample of the third audio received by the second microphone to generate an error signal; andwhen the error signal exceeds a second threshold, adjusting the first set of weighted coefficients based on the error signal. 6. The method of claim 5, wherein the error signal, Xe(n), includes Xe(n)=Xd (n)−YO(n), wherein Xd(n) represents an audio sample and Y0(n) represents a summed filter output of multiple audio samples and n is an iteration index, and wherein the first set of weighted coefficients is adjusted based on the error signal by Wm(n+1)=Wm(n)+μXeXm(n), wherein Wm(n+1) and Wm are weight coefficients, Xm(n) is a weighted audio sample, and μ is a learning factor. 7. The method of claim 5, wherein the comparing of the filter output to the sample of the third audio received by the second microphone to generate the error signal further includes subtracting the filter output from the sample of the third audio received by the second microphone to generate the error signal. 8. A tangible computer readable storage medium comprising instructions that, when executed, cause a machine to at least: generate, using an echo cancellation algorithm, a first set of weighted coefficients based on first audio received by first and second microphones at a first time;generate, using the echo cancellation algorithm, a second set of weighted coefficients based on second audio received by the first and second microphones at a second time after the first time;compare the first set of weighted coefficients and the second set of weighted coefficients by calculating a dot product between the first set of weighted coefficients and the second set of weighted coefficients to generate a similarity value;when the similarity value satisfies a first threshold, determine that a media presentation device is in a first state;when the similarity value does not satisfy the first threshold, determine that the media presentation device is in a second state; andcontrol a metering device based on whether the media presentation device is in the first state or the second state. 9. The tangible computer readable storage medium of claim 8, further including instructions that, when executed, cause the machine to, when the media presentation device is in the first state, extract a watermark from the second audio. 10. The tangible computer readable storage medium of claim 8, further including instructions that, when executed, cause the machine to generate the first and second sets of weighted coefficients by applying the echo cancellation algorithm using a finite impulse response filter to generate the first set of weighted coefficients and to generate the second set of weighted coefficients. 11. The tangible computer readable storage medium of claim 8, wherein the first state includes an on state, and wherein the second state includes an off state. 12. The tangible computer readable storage medium of claim 8, further including instructions that, when executed, cause the machine to: apply a third set of weighted coefficients to one or more samples of a third audio received by the first microphone to provide a filter output;compare the filter output to a sample of the third audio received by the second microphone to generate an error signal; andwhen the error signal exceeds a second threshold, adjust the first set of weighted coefficients based on the error signal. 13. The tangible computer readable storage medium of claim 12, wherein the error signal, Xe(n), includes Xe(n)=Xd (n)−YO(n), wherein Xd(n) represents an audio sample and Y0(n) represents a summed filter output of multiple audio samples and n is an iteration index, and wherein the first set of weighted coefficients is adjusted based on the error signal by Wm (n+1)=Wm(n)+μXeXm(n), wherein Wm(n+1) and Wm are weight coefficients, Xm(n) is a weighted audio sample, and μ is a learning factor. 14. The tangible computer readable storage medium of claim 12, wherein the instructions, when executed, cause the machine to compare the filter output to the sample of the third audio received by the second microphone to generate the error signal by subtracting the filter output from the sample of the third audio received by the second microphone to generate the error signal. 15. A metering device comprising a processor to implement a source detector including an adaptive audio filter, an audio comparator, and a state determiner, the adaptive audio filter to at least: generate, using an echo cancellation algorithm, a first set of weighted coefficients based on first audio received by first and second microphones at a first time; andgenerate, using the echo cancellation algorithm, a second set of weighted coefficients based on second audio received by the first and second microphones at a second time after the first time;the audio comparator to at least: compare the first set of weighted coefficients and the second set of weighted coefficients by calculating a dot product between the first set of weighted coefficients and the second set of weighted coefficients to generate a similarity value; andthe state determiner to at least: when the similarity value satisfies a first threshold, determine that the media presentation device is in a first state;when the similarity value does not satisfy the first threshold, determine that the media presentation device is in a second state; andcontrol the metering device based on whether the media presentation device is in the first state or the second state. 16. The metering device of claim 15, wherein the metering device is to generate the first and second sets of weighted coefficients by applying the echo cancellation algorithm using a finite impulse response filter to generate the first set of weighted coefficients and to generate the second set of weighted coefficients. 17. The metering device of claim 15, wherein the first state includes an on state, and wherein the second state includes an off state. 18. The metering device of claim 15, wherein the metering device is further to: apply a third set of weighted coefficients to one or more samples of a third audio received by the first microphone to provide a filter output;compare the filter output to a sample of the third audio received by the second microphone to generate an error signal; andwhen the error signal exceeds a second threshold, adjust the first set of weighted coefficients based on the error signal. 19. The metering device of claim 18, wherein the error signal, Xe(n), includes Xe(n)=Xd(n)−YO(n), wherein Xd(n) represents an audio sample and Y0(n) represents a summed filter output of multiple audio samples and n is an iteration index, and wherein the first set of weighted coefficients is adjusted based on the error signal by Wm (n+1)=Wm(n)+μXeXm(n), wherein Wm(n+1) and Wm are weight coefficients, Xm(n) is a weighted audio sample, and μ is a learning factor. 20. The metering device of claim 18, wherein the metering device is to compare the filter output to the sample of the third audio received by the second microphone to generate the error signal by subtracting the filter output from the sample of the third audio received by the second microphone to generate the error signal.
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James,Terry L., Accelerometer for data collection and communication.
Dougherty Robert A. (Ozona FL), Apparatus and method for injecting an ancillary signal into a low energy density portion of a color television frequency.
James M. Jensen ; Wendell D. Lynch ; Michael M. Perelshteyn ; Robert B. Graybill ; Sayed Hassan ; Wayne Sabin, Apparatus and methods for including codes in audio signals.
Ishman Neal H. (Springfield VA) Buxton Robert B. (Burke VA) Durst Duane A. (Sterling VA) McArthur James F. (Falls Church VA) Johnson Michael E. (Falls Church VA), Apparatus for monitoring a multichannel receiver.
Green, Marilynn P.; Wang, Shu-Shaw, Apparatus, and associated method, for determining geographical positioning of a mobile station operable in a radio communication system.
Lu Daozheng (Buffalo Grove IL) Shagrin Ceril T. (Palm Harbor FL) Thomas William L. (Clearwater FL) Lee Morris (Buffalo Grove IL) Bernard Bruce (Mundelein IL) Zhang Jia (Mundelein IL), Audience measurement system and method.
Hopple, Michael Robert; Frey, Richard Louis; McGrath, Donald Thomas; Dunki-Jacobs, Robert John, Audience measurement system employing local time coincidence coding.
Fried, Eric P; Sabarathinam, Suresh, Audio device volume manager using measured volume perceived at a first audio device to control volume generation by a second audio device.
Harney Michael P. (Atlanta GA) Parikh Himanshu R. (Lawrenceville GA) West ; Jr. Lamar E. (Maysville GA) Farmer James O. (Lilburn GA) Schutte Mark E. (Sugar Hill GA), CATV pay per view interdiction system method and apparatus.
Freeman Michael J. (Sands Point NY), Closed circuit television system having seamless interactive television programming and expandable user participation.
Brooks Jon R. (Silver Spring MD) Jensen James M. (Columbia MD) McConochie Roberta M. (Annapolis MD) Osborn Susan V. (Columbia MD) Pearl Amy E. (Washington DC) Schmidt Carole M. (New Carrollton MD) Se, Compliance incentives for audience monitoring/recording devices.
Marks, Richard L.; Mao, Xiadong; Zalewski, Gary M., Computer image and audio processing of intensity and input devices for interfacing with a computer program.
Waechter Jerome R. (Clearwater FL) Patten James T. (St. Petersburg FL) Kempter Paul C. (Palm Harbor FL), Data collection and transmission system with real time clock.
Teller, Eric; King, Martin T.; Mannby, Claes-Fredrik; Smith, Michael J., Device and method for monitoring the presence of items and issuing an alert if an item is not detected.
Allison ; III Arthur W. (Brinklow MD) Damoci Joseph A. (Beltsville MD) Forlines William H. (Gaithersburg MD) Gipson Carl B. (Laurel MD) Kern Matthew F. (Laurel MD) Myers David M. (Martinsburg WV), Distributed monitoring system.
Oshima, Junichi, Information display apparatus, and display state detection method, display state adjustment method and maintenance management method therefor.
Coronado, Juan Alonso; Krueger, Russell Bernard; Lara, Christina Ann; Peterson, Beth Ann; Somoza, Xavier Edgar; Taylor, Aaron Eugene, Management of a reserve forever device.
Fardeau Michel (Les Milles FRX) Briend Michel (Roquevaire FRX) Tommasi Marc (Ventabren FRX) Galant Serge (Aix-en-Provence FRX), Method and apparatus for automatically identifying a program including a sound signal.
Fardeau Michel (Les Milles FRX) Briend Michel (Roquevaire FRX) Tommasi Marc (Ventabren FRX) Galant Serge (Aix-en-Provence FRX), Method and apparatus for automatically identifying a program including a sound signal.
Fardeau Michel,FRX ; Briend Michel,FRX ; Tommasi Marc,FRX ; Galant Serge,FRX, Method and apparatus for automatically identifying a program including a sound signal.
Mizushima, Koichiro, Method and apparatus for concurrently estimating respective directions of a plurality of sound sources and for monitoring individual sound levels of respective moving sound sources.
Machnik Patrick R. (Roseville MN) Petersen Bruce L. (Mounds View MN) Schultz Robert G. (New Brighton MN) Thatcher Jerry T. (Shoreview MN) Whiting Roscella A. (Lanham MD), Method and apparatus for detecting the channel to which an electronic receiver system is tuned.
Zurlinden Everett V. (Dunedin FL), Method and apparatus for determining audience viewing habits by jamming a control signal and identifying the viewers com.
Aijala Victor A. (Arnold MD) Cohen Gerald B. (Gaithersburg MD) Jensen James M. (Columbia MD) Lynch Wendell D. (Silver Spring MD) Urbi Juan C. (Laurel MD), Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto.
McMullan ; Jr. Jay C. (Doraville GA), Method and apparatus for generating and collecting viewing statistics for remote terminals in a cable television system.
Aras Caglan M. ; Griffin Luther B. ; Lai Fuyung ; Stagg Arthur James ; Sy Kian-Bon Kho, Method and apparatus for monitoring audio-visual materials presented to a subscriber.
Goldschmidt Iki Jean M. ; Shah-Nazaroff Anthony Alexander ; Williams Christopher D. ; Lane Kathleen, Method and apparatus for monitoring viewing of broadcast data.
Copriviza Robert C. (Tarzana CA) Dubin Arnold M. (Calabasas CA) Ackerman Edward B. (Encino CA) Wood Jackson B. (Tarzana CA) Eakins Jeffrey S. (Claremont CA) Harmon David D. (Torrance CA), Method and apparatus for video signal encoding, decoding and monitoring.
Xanthos, James; McDowell, Mark; Stead, Graham; Khalil, Joseph; Helinski, David; Kitchell, Joseph, Method and system for measuring data quality of service in a wireless network using multiple remote units and a back end processor.
Vitt James J. (Dunedin FL) Fulmer Allen L. (Clearwater FL) Lu Daozheng (Buffalo Grove IL), Method and system for non-invasively identifying the operational status of a VCR.
Heller Alan C. (San Antonio TX) Fox Christopher W. (San Antonio TX), Method for receiving and transmitting optical data and control information to and from remotely located receivers and tr.
Nelson, Daniel J.; Mello, Brian Scott; Zio, Luc; Croy, David James, Methods and apparatus for determining whether a media presentation device is in an on state or an off state.
Lee, Morris; Nelson, Daniel; Headley, Weston, Methods and apparatus for using location information to manage spillover in an audience monitoring system.
Lee, Morris; Nelson, Daniel; Headley, Weston, Methods and apparatus for using location information to manage spillover in an audience monitoring system.
Mears, Paul M.; Ramaswamy, Arun, Methods and apparatus to adaptively select sensor(s) to gather audience measurement data based on a variable system factor and a quantity of data collectable by the sensors.
Wheeler, Henry B.; Lu, Daozheng; Kempter, Paul C.; Feininger, William A., Methods and apparatus to monitor reception of programs and content by broadcast receivers.
Schwartz Bruce V. ; Boyle Stephen S. ; King Peter F. ; Martin ; Jr. Bruce K., Reducing perceived latency in servicing user requests on low-bandwidth communication channels.
Crystal, Jack C.; Jensen, James M.; Krug, William K.; Lynch, Wendell D.; Neuhauser, Alan R.; Flanagan, III, Eugene L., Research data gathering with a portable monitor and a stationary device.
Maduzia Kenneth S. (Holiday FL) Frett Kenneth J. (Crystal Beach FL) Vitt James J. (Dunedin FL), Serial data channel metering attachment for metering channels to which a receiver is tuned.
Komninos Nikolaos I. (2802-B W. Long Dr. Littleton CO 80120), Signal detector and method for detecting signals having selected frequency characteristics.
Clifford W. Lazar ; Paul M. Meadows, System and apparatus for broadcasting, capturing, storing, selecting and then forwarding selected product data and viewer choices to vendor host computers.
de Clerq,Stephan; Chambers,Christopher; Scott,Wayne; Yuh,Allen; Arling,Paul D.; Lilleness,Robert, System and method for controlling device location determination.
Copriviza Robert C. (Tarzana CA) Dubin Arnold M. (Calabasas CA) Ackerman Edward B. (Encino CA) Wood Jackson B. (Tarzana CA) Eakins Jeffrey S. (Claremont CA) Harmon David D. (Torrance CA), System and method for monitoring video program material.
Ceresoli, Carl D.; Layman, Bruce E.; Birger, Alexander; Kvetny, Mikhail; Smychkovich, Boris, System and method for obtaining comprehensive vehicle radio listener statistics.
Sprogis,David H.; Zehme,Dan U., System and method for remotely monitoring, diagnosing, intervening with and reporting problems with cinematic equipment.
Mabey Kent W. (West Jordan UT) Boska Joseph M. (Columbia MD) Richards Stephen L. (Gallatin MO), System and methods for monitoring TV viewing system including a VCR and/or a cable converter.
Kutzik David M. (Philadelphia PA) Glascock Anthony P. (Newtown Square PA) Chute Douglas L. (Devon PA) Hewett Thomas T. (Wallingford PA) Hornum Barbara G. (Philadelphia PA), System for generating periodic reports, generating trend analysis, and intervention in accordance with trend analysis fr.
Alexander Ronald ; Dias Stephen ; Hancock Kenneth S. ; Leung Elsie Y. ; Macrae Douglas ; Ng Arthur Y. ; O'Neil Shawn ; Schoaff Peter Christopher ; Sutton Jonathon ; Ward ; III Thomas Edward ; Westber, Systems and methods for displaying and recording control interface with television programs, video, advertising information and program scheduling information.
Kolessar,Ronald S.; Jensen,James M.; Zhang,Jack K.; Wood,Courtney Lewis; Flanagan, III,Eugene L., Systems and methods for gathering data concerning usage of media data.
McKenna, William J.; Silvers, Kenneth W.; Nickerson, Rand B.; Welsh, Russell J.; Walker, Harold R.; Cullity, Joseph A.; Stryzak, Bohdan, Television and market research data collection system and method.
Yazolino Lauren F. (Orinda CA) Goodell John L. (Sunnyvale CA), Television video synchronization signal monitoring system and method for cable television system.
Kiefl John B. (17 Castlethorpe Crescent Nepean ; Ontario CAX K2G 5P6), Television viewer monitoring system including portable data meter for each viewer.
Thomas William L. (Clearwater FL) Kempter Paul C. (Palm Harbor FL) Harkness David H. (Wilton CT), Universal broadcast code and multi-level encoded signal monitoring system.
Berman Eric B. (Commack NY) Ganesan Apparajan (Manchacha TX) Jorden William B. H. (Malverne NY) McLaughlin Philip R. (Huntington NY) Posner William (Plainview NY), Video signal data and composite synchronization extraction circuit for on-screen display.
Nielsen, Christen V.; Vitt, James J.; Cooper, Timothy Scott; Turnbow, Douglas Brent, Methods and apparatus to perform audio sensor selection in an audience measurement device.
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