loadpatents
Patent applications and USPTO patent grants for Lu; Daozheng.The latest application filed is for "source detection apparatus and method for audience measurement".
Patent | Date |
---|---|
Interactive service device metering systems Grant 8,776,103 - Lu , et al. July 8, 2 | 2014-07-08 |
Audience measurement systems and methods for digital television Grant 8,732,738 - Lu , et al. May 20, 2 | 2014-05-20 |
Methods and apparatus for identifying a digital audio signal Grant 8,548,373 - Peiffer , et al. October 1, 2 | 2013-10-01 |
Source detection apparatus and method for audience measurement Grant 8,434,100 - Wheeler , et al. April 30, 2 | 2013-04-30 |
Audio signature extraction and correlation Grant 8,244,527 - Srinivasan , et al. August 14, 2 | 2012-08-14 |
Source Detection Apparatus And Method For Audience Measurement App 20120102518 - Wheeler; Henry B. ;   et al. | 2012-04-26 |
Audience Measurement Systems And Methods For Digital Television App 20110314486 - Lu; Daozheng ;   et al. | 2011-12-22 |
Detection Of Media Links In Broadcast Signals App 20110179447 - Harkness; David H. ;   et al. | 2011-07-21 |
Source detection apparatus and method for audience measurement Grant 7,958,526 - Wheeler , et al. June 7, 2 | 2011-06-07 |
Detection of media links in broadcast signals Grant 7,941,816 - Harkness , et al. May 10, 2 | 2011-05-10 |
Source Detection Apparatus And Method For Audience Measurement App 20100333126 - Wheeler; Henry B. ;   et al. | 2010-12-30 |
Detection Of Media Links In Broadcast Signals App 20100235853 - Harkness; David H. ;   et al. | 2010-09-16 |
Audio Signature Extraction And Correlation App 20100195837 - Srinivasan; Venugopal ;   et al. | 2010-08-05 |
Methods And Apparatus For Identifying A Digital Audio Signal App 20100198380 - Peiffer; John C. ;   et al. | 2010-08-05 |
Detection of media links in broadcast signals Grant 7,757,248 - Harkness , et al. July 13, 2 | 2010-07-13 |
Methods and apparatus for identifying a digital audio signal Grant 7,742,737 - Peiffer , et al. June 22, 2 | 2010-06-22 |
Interactive Service Device Metering Systems App 20100138770 - Lu; Daozheng ;   et al. | 2010-06-03 |
Audio signature extraction and correlation Grant 7,672,843 - Srinivasan , et al. March 2, 2 | 2010-03-02 |
Coded/non-coded program audience measurement system Grant 7,647,605 - Lu , et al. January 12, 2 | 2010-01-12 |
Interactive service device metering systems Grant 7,644,422 - Lu , et al. January 5, 2 | 2010-01-05 |
Interactive service device metering systems Grant 7,607,147 - Lu , et al. October 20, 2 | 2009-10-20 |
Methods and apparatus to monitor reception of programs and content by broadcast receivers Grant 7,587,728 - Wheeler , et al. September 8, 2 | 2009-09-08 |
Coded/non-coded Program Audience Measurement System App 20080288972 - Lu; Daozheng ;   et al. | 2008-11-20 |
Detection Of Media Links In Broadcast Signals App 20080282303 - Harkness; David H. ;   et al. | 2008-11-13 |
Detection of media links in broadcast signals Grant 7,421,723 - Harkness , et al. September 2, 2 | 2008-09-02 |
Audience measurement systems and methods for digital television App 20070055987 - Lu; Daozheng ;   et al. | 2007-03-08 |
Methods and apparatus to monitor reception of programs and content by broadcast receivers App 20060195857 - Wheeler; Henry B. ;   et al. | 2006-08-31 |
Audio signature extraction and correlation App 20050232411 - Srinivasan, Venugopal ;   et al. | 2005-10-20 |
Method and apparatus for identifying a digital audio dignal App 20040210922 - Peiffer, John C. ;   et al. | 2004-10-21 |
Apparatus and method for measuring tuning of a digital broadcast receiver App 20040181799 - Lu, Daozheng ;   et al. | 2004-09-16 |
Source detection apparatus and method for audience measurement App 20040088721 - Wheeler, Henry B. ;   et al. | 2004-05-06 |
Coded/non-coded program audience measurement system App 20040058675 - Lu, Daozheng ;   et al. | 2004-03-25 |
Source detection apparatus and method for audience measurement Grant 6,675,383 - Wheeler , et al. January 6, 2 | 2004-01-06 |
Coded/non-coded program audience measurement system Grant 6,647,548 - Lu , et al. November 11, 2 | 2003-11-11 |
Method and apparatus for identifying a digital audio signal App 20030131350 - Peiffer, John C. ;   et al. | 2003-07-10 |
Interactive service device metering systems App 20030110485 - Lu, Daozheng ;   et al. | 2003-06-12 |
Monitoring system for recording device Grant 6,513,161 - Wheeler , et al. January 28, 2 | 2003-01-28 |
Audience measurement system incorporating a mobile handset Grant 6,467,089 - Aust , et al. October 15, 2 | 2002-10-15 |
Apparatus and method for measuring tuning of a digital broadcast receiver App 20020114299 - Lu, Daozheng ;   et al. | 2002-08-22 |
Metering viewing of video displayed in windows App 20020059576 - Feininger, William A. ;   et al. | 2002-05-16 |
Detection of media links in broadcast signals App 20020059633 - Harkness, David H. ;   et al. | 2002-05-16 |
Audience measurement system for digital television App 20020059577 - Lu, Daozheng ;   et al. | 2002-05-16 |
Source detection apparatus and method for audience measurement App 20020026635 - Wheeler, Henry B. ;   et al. | 2002-02-28 |
Audience measurement system for digital television App 20020010919 - Lu, Daozheng ;   et al. | 2002-01-24 |
Simultaneous transmission of ancillary and audio signals by means of perceptual coding Grant 6,035,177 - Moses , et al. March 7, 2 | 2000-03-07 |
Audience measurement system and method Grant 5,771,307 - Lu , et al. June 23, 1 | 1998-06-23 |
Co-channel transmission of program signals and ancillary signals Grant 5,737,025 - Dougherty , et al. April 7, 1 | 1998-04-07 |
Video and data co-channel communication system Grant 5,737,026 - Lu , et al. April 7, 1 | 1998-04-07 |
Real time correlation meter Grant 5,594,934 - Lu , et al. January 14, 1 | 1997-01-14 |
Audience measurement system and method Grant 5,550,928 - Lu , et al. August 27, 1 | 1996-08-27 |
Audience measurement system utilizing ancillary codes and passive signatures Grant 5,481,294 - Thomas , et al. J | 1996-01-02 |
Identification card verification system Grant 5,432,864 - Lu , et al. July 11, 1 | 1995-07-11 |
Market research method and system for collecting retail store and shopper market research data Grant 5,331,544 - Lu , et al. July 19, 1 | 1994-07-19 |
Spread spectrum digital data transmission over TV video Grant 5,243,423 - DeJean , et al. September 7, 1 | 1993-09-07 |
Method and system for non-invasively identifying the operational status of a VCR Grant 5,165,069 - Vitt , et al. November 17, 1 | 1992-11-17 |
Image recognition system and method Grant 5,031,228 - Lu July 9, 1 | 1991-07-09 |
Image recognition audience measurement system and method Grant 4,858,000 - Lu August 15, 1 | 1989-08-15 |
Methods and apparatus for automatically identifying programs viewed or recorded Grant 4,697,209 - Kiewit , et al. September 29, 1 | 1987-09-29 |
Broadcast program identification method and apparatus Grant 4,677,466 - Lert, Jr. , et al. June 30, 1 | 1987-06-30 |
Ultrasonic audience measurement system and method Grant 4,644,509 - Kiewit , et al. February 17, 1 | 1987-02-17 |
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