Inventor · disambiguated record
Lifeng Zhao
Also filed as: ZHAO LIFENG
28 granted patents·15 pending applications·407 citations·filing 2002–2025
96Inventor score
Files withBaidu online network technology beijing co ltd12INTERVIDEO INC8LINKPLAY TECH INC8PROCTER & GAMBLE4SAMSUNG ELECTRONICS CO LTD2
Top patents by PatentIndex Score
43 records- 0199US7164717B2Systems and methods for detecting scene changes in a video data streamINTERVIDEO INC·Filed 2005·Granted Jan 16, 2007·65 cites·8 claims
- 0297US7221706B2Systems and methods for performing bit rate allocation for a video data streamINTERVIDEO INC·Filed 2004·Granted May 22, 2007·67 cites·11 claims
- 0397US6940903B2Systems and methods for performing bit rate allocation for a video data streamINTERVIDEO INC·Filed 2002·Granted Sep 6, 2005·78 cites·19 claims
- 0496US12277367B1User scenario-based audio playback method, apparatus and device, and storage mediumLINKPLAY TECH INC·Filed 2024·Granted Apr 15, 2025·4 cites·14 claims
- 0596US6970506B2Systems and methods for reducing frame rates in a video data streamINTERVIDEO INC·Filed 2002·Granted Nov 29, 2005·49 cites·12 claims
- 0695US12307161B1Audio parameter adjusting method, apparatus and device, and storage mediumLINKPLAY TECH INC·Filed 2025·Granted May 20, 2025·5 cites·9 claims
- 0794US12418870B1Method, apparatus, and device of audio processing combining WiFi and bluetooth low energy BLE technologies, and storage mediumLINKPLAY TECH INC·Filed 2025·Granted Sep 16, 2025·2 cites·10 claims
- 0894US6944224B2Systems and methods for selecting a macroblock mode in a video encoderINTERVIDEO INC·Filed 2003·Granted Sep 13, 2005·68 cites·12 claims
- 0993US7110452B2Systems and methods for detecting scene changes in a video data streamINTERVIDEO INC·Filed 2002·Granted Sep 19, 2006·29 cites·14 claims
- 1091US12418352B1Multi-room multi-channel audio synchronization method, apparatus, and device and storage mediumLINKPLAY TECH INC·Filed 2025·Granted Sep 16, 2025·1 cites·14 claims
- 1187US12254243B1Audio playback method and apparatus, electronic device and storage mediumLINKPLAY TECH INC·Filed 2024·Granted Mar 18, 2025·1 cites·10 claims
- 1283US12219332B1Audio synchronization playback method, system and storage mediumLINKPLAY TECH INC·Filed 2024·Granted Feb 4, 2025·1 cites·12 claims
- 1379US7388912B1Systems and methods for adjusting targeted bit allocation based on an occupancy level of a VBV buffer modelINTERVIDEO INC·Filed 2003·Granted Jun 17, 2008·19 cites·21 claims
- 1478US11322138B2Voice awakening method and deviceBaidu online network technology beijing co ltd·Filed 2019·Granted May 3, 2022·3 cites·18 claims
- 1577US11315555B2Terminal holder and far-field voice interaction systemBaidu online network technology beijing co ltd·Filed 2018·Granted Apr 26, 2022·2 cites·10 claims
- 1673US7406124B1Systems and methods for allocating bits to macroblocks within a picture depending on the motion activity of macroblocks as calculated by an L1 norm of the residual signals of the macroblocksINTERVIDEO INC·Filed 2003·Granted Jul 29, 2008·10 cites·5 claims
- 1764US11127398B2Method for voice controlling, terminal device, cloud server and systemBaidu online network technology beijing co ltd·Filed 2018·Granted Sep 21, 2021·2 cites·17 claims
- 1861US10964317B2Voice wakeup method, apparatus and system, cloud server and readable mediumBaidu online network technology beijing co ltd·Filed 2017·Granted Mar 30, 2021·1 cites·18 claims
- 1959US12418763B1Multi-room audio synchronous playback method, system, device, and storage mediumLINKPLAY TECH INC·Filed 2025·Granted Sep 16, 2025·0 cites·13 claims
- 2055US12309560B1Audio calibration method and system, and storage mediumLINKPLAY TECH INC·Filed 2025·Granted May 20, 2025·0 cites·12 claims
- 2153US2008123738A1Systems methods for adjusting targeted bit allocation based on an occupancy level of a VBV buffer modelKATSAVOUNIDIS IOANNIS·Filed 2008·Application pending·0 cites
- 2251US11211075B2Service control method, service control apparatus and deviceBaidu online network technology beijing co ltd·Filed 2019·Granted Dec 28, 2021·0 cites·15 claims
- 2351US2022133553A1Absorbent article with hybrid nonwoven webPROCTER & GAMBLE·Filed 2021·Application pending·0 cites
- 2450US11808765B2Method and device for detecting excessive antigen concentration and storage mediumEDAN INSTRUMENTS INC·Filed 2019·Granted Nov 7, 2023·0 cites·9 claims
- 2550US2022133554A1Nonwoven and absorbent articles containing the samePROCTER & GAMBLE·Filed 2021·Application pending·0 cites
- 2649US11115169B2Parent node device, terminal device for wireless network and data transmission method thereofSAMSUNG ELECTRONICS CO LTD·Filed 2018·Granted Sep 7, 2021·0 cites·20 claims
- 2749US2013146739A1Portable kd umbrella baseZHAO LIFENG·Filed 2011·Application pending·0 cites
- 2847US12336891B2Apertured nonwoven web and method of forming the samePROCTER & GAMBLE·Filed 2021·Granted Jun 24, 2025·0 cites·13 claims
- 2947US2024327963A1V-n microalloyed steel and method for producing v-n microalloyed and surface-crack-free continuous casting blankLAIWU STEEL YINSHAN SECTION CO LTD·Filed 2021·Application pending·0 cites
- 3046US10959122B2Method and device for transmitting dataSAMSUNG ELECTRONICS CO LTD·Filed 2018·Granted Mar 23, 2021·0 cites·17 claims
- 3146US2004252758A1Systems and methods for adaptively filtering discrete cosine transform (DCT) coefficients in a video encoderFiled 2003·Application pending·0 cites
- 3244US2023178100A1Tail point detection method, electronic device, and non-transitory computer-readable storage mediumBEIJING BAIDU NETCOM SCI & TECH CO LTD·Filed 2022·Application pending·0 cites
- 3343US10908870B2Audio playing method, apparatus, device and serverBaidu online network technology beijing co ltd·Filed 2018·Granted Feb 2, 2021·0 cites·14 claims
- 3443US10803861B2Method and apparatus for identifying informationBaidu online network technology beijing co ltd·Filed 2017·Granted Oct 13, 2020·0 cites·6 claims
- 3543US2012024331A1Canopy Assembled with Fastening BracketsZHAO LIFENG·Filed 2010·Application pending·0 cites
- 3643US2019287523A1Far-field voice control device and far-field voice control systemBaidu online network technology beijing co ltd·Filed 2019·Application pending·0 cites
- 3742US2020227069A1Method, device and apparatus for recognizing voice signal, and storage mediumBaidu online network technology beijing co ltd·Filed 2019·Application pending·0 cites
- 3842US2020227049A1Method, apparatus and device for waking up voice interaction device, and storage mediumBaidu online network technology beijing co ltd·Filed 2019·Application pending·0 cites
- 3941US2018184689A1A method for preparing lutein feed additiveZHEJIANG NEW WEIPU ADDITIVE CO LTD·Filed 2016·Application pending·0 cites
- 4039US2020219503A1Method and apparatus for filtering out voice instructionBaidu online network technology beijing co ltd·Filed 2019·Application pending·0 cites
- 4138US10783884B2Electronic device-awakening method and apparatus, device and computer-readable storage mediumBaidu online network technology beijing co ltd·Filed 2017·Granted Sep 22, 2020·0 cites·6 claims
- 4238US2021012243A1System and a method for providing and visualizing information of a fabric productPROCTER & GAMBLE·Filed 2020·Application pending·0 cites
- 4335US2019345060A1Beneficial reuse of drill cuttingsNEWALTA CORP·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →