Inventor
RAFII ZAFAR
US43 patents
⚠️ This page may combine multiple inventors who share the name “RAFII ZAFAR”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GRACENOTE INC
28 patentsUS9501568B2Nov 22, 2016
Audio matching based on harmonogram
GRACENOTE INC36 citations98
US11656318B2May 23, 2023
Methods and apparatus to improve detection of audio signatures
GRACENOTE INC4 citations86
US11226396B2Jan 18, 2022
Methods and apparatus to improve detection of audio signatures
GRACENOTE INC6 citations86
US11071182B2Jul 20, 2021
Methods and apparatus to control lighting effects
GRACENOTE INC9 citations85
US12044792B2Jul 23, 2024
Methods and apparatus to improve detection of audio signatures
GRACENOTE INC2 citations73
US11049507B2Jun 29, 2021
Methods, apparatus, and articles of manufacture to identify sources of network streaming services
GRACENOTE INC4 citations73
US12035431B2Jul 9, 2024
Methods and apparatus to control lighting effects based on media content
GRACENOTE INC2 citations72
US11470700B2Oct 11, 2022
Methods and apparatus to control lighting effects
GRACENOTE INC1 citations72
US11907288B2Feb 20, 2024
Audio identification based on data structure
GRACENOTE INC2 citations71
US10713296B2Jul 14, 2020
Audio identification based on data structure
GRACENOTE INC4 citations71
US12386025B2Aug 12, 2025
Methods and apparatus to improve detection of audio signatures
GRACENOTE INC0 citations62
US12236931B2Feb 25, 2025
Methods and apparatus for harmonic source enhancement
GRACENOTE INC0 citations62
US12236965B2Feb 25, 2025
Methods, apparatus, and articles of manufacture to identify sources of network streaming services
GRACENOTE INC0 citations62
US12232229B2Feb 18, 2025
Methods and apparatus to control light pulsing effects based on media content
GRACENOTE INC0 citations62
US12105753B2Oct 1, 2024
Automated cover song identification
GRACENOTE INC0 citations62
US11948589B2Apr 2, 2024
Methods, apparatus, and articles of manufacture to identify sources of network streaming services
GRACENOTE INC0 citations62
US11847998B2Dec 19, 2023
Methods and apparatus for harmonic source enhancement
GRACENOTE INC0 citations62
US11574618B2Feb 7, 2023
Methods and apparatus for harmonic source enhancement
GRACENOTE INC0 citations62
US11461390B2Oct 4, 2022
Automated cover song identification
GRACENOTE INC0 citations62
US11366850B2Jun 21, 2022
Audio matching based on harmonogram
GRACENOTE INC0 citations62
US12105754B2Oct 1, 2024
Audio identification based on data structure
GRACENOTE INC0 citations60
US12094486B2Sep 17, 2024
Audio content recognition method and system
GRACENOTE INC0 citations60
US11727953B2Aug 15, 2023
Audio content recognition method and system
GRACENOTE INC0 citations60
US12387733B2Aug 12, 2025
Methods and apparatus to fingerprint an audio signal via normalization
GRACENOTE INC0 citations52
US10698948B2Jun 30, 2020
Audio matching based on harmonogram
GRACENOTE INC0 citations52
US10282471B2May 7, 2019
Audio matching based on harmonogram
GRACENOTE INC0 citations52
US10803119B2Oct 13, 2020
Automated cover song identification
GRACENOTE INC0 citations51
US12094490B2Sep 17, 2024
Cover song identification method and system
GRACENOTE INC0 citations44
NIELSEN CO US LLC
13 patentsUS11749244B2Sep 5, 2023
Methods and apparatus to extract a pitch-independent timbre attribute from a media signal
NIELSEN CO US LLC4 citations86
US10902831B2Jan 26, 2021
Methods and apparatus to extract a pitch-independent timbre attribute from a media signal
NIELSEN CO US LLC6 citations84
US10733998B2Aug 4, 2020
Methods, apparatus and articles of manufacture to identify sources of network streaming services
NIELSEN CO US LLC5 citations84
US10629213B2Apr 21, 2020
Methods and apparatus to perform windowed sliding transforms
NIELSEN CO US LLC8 citations84
US10629178B2Apr 21, 2020
Methods and apparatus to extract a pitch-independent timbre attribute from a media signal
NIELSEN CO US LLC6 citations84
US10482863B2Nov 19, 2019
Methods and apparatus to extract a pitch-independent timbre attribute from a media signal
NIELSEN CO US LLC6 citations84
US10186247B1Jan 22, 2019
Methods and apparatus to extract a pitch-independent timbre attribute from a media signal
NIELSEN CO US LLC8 citations84
US12051396B2Jul 30, 2024
Methods and apparatus to extract a pitch-independent timbre attribute from a media signal
NIELSEN CO US LLC2 citations73
US11430454B2Aug 30, 2022
Methods and apparatus to identify sources of network streaming services using windowed sliding transforms
NIELSEN CO US LLC2 citations73
US10726852B2Jul 28, 2020
Methods and apparatus to perform windowed sliding transforms
NIELSEN CO US LLC6 citations73
US12586554B2Mar 24, 2026
Methods and apparatus to extract a pitch-independent timbre attribute from a media signal
NIELSEN CO US LLC0 citations62
US12230282B2Feb 18, 2025
Methods, apparatus and articles of manufacture to identify sources of network streaming services
NIELSEN CO US LLC0 citations62
US11651776B2May 16, 2023
Methods, apparatus and articles of manufacture to identify sources of network streaming services
NIELSEN CO US LLC1 citations62