Issued Patents All Time
Showing 25 most recent of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11533493 | Method of adding encoded range-of-interest location, type, and adjustable quantization parameters per macroblock to video stream | Maojian Xiang, Xiaojun Liu | 2022-12-20 |
| 10939126 | Method of adding encoded range-of-interest location, type and adjustable quantization parameters per macroblock to video stream | Maojian Xiang, Xiaojun Liu | 2021-03-02 |
| 10834247 | Mobile terminal with unlock function | Xiaojun Liu | 2020-11-10 |
| 10623548 | Mobile terminal unlock method | Xiaojun Liu | 2020-04-14 |
| 10477004 | Mobile terminal unlock method for security protection of mobile phone | Xiaojun Liu | 2019-11-12 |
| 10404844 | Mobile terminal unlock method for security protection of mobile phone | Xiaojun Liu | 2019-09-03 |
| 10218832 | Mobile terminal unlock method for security protection | Xiaojun Liu | 2019-02-26 |
| 10142452 | Mobile terminal unlock method | Xiaojun Liu | 2018-11-27 |
| 9986433 | Wireless application protocol gateway | Xiaojun Liu, Wenqin He, Wuqiang Lin | 2018-05-29 |
| 9813909 | Cloud server for authenticating the identity of a handset user | Wei Lu, Dongxuan Gao, Xiaojun Liu | 2017-11-07 |
| 9544769 | Method for providing application service | Wei Lu, Xiaojun Liu, Wuqiang Lin | 2017-01-10 |
| 9537859 | Method for authenticating identity of handset user in a cloud-computing environment | Xiaojun Liu, Dongxuan Gao | 2017-01-03 |
| 9124227 | Distortion limiter and automatic power control for drivers | Iuri Mehr, Jungwoo Song, Vinay Chandrasekhar | 2015-09-01 |
| 8686789 | Transient signal suppression for a class-D audio amplifier arrangement | Xicheng Jiang | 2014-04-01 |
| 8237496 | Switching amplifier with enhanced supply rejection and related method | Xicheng Jiang, Jungwoo Song, Todd L. Brooks | 2012-08-07 |
| 8212612 | Closed-loop class-D amplifier with modulated reference signal and related method | Jungwoo Song, Xicheng Jiang, Todd L. Brooks | 2012-07-03 |
| 8060050 | Method and system for analog and digital RF receiver interface | Yue Chen, Nelson Sollenberger | 2011-11-15 |
| 7714675 | All digital Class-D modulator and its saturation protection techniques | — | 2010-05-11 |
| 7653204 | Method and system for codec with polyringer | Yue Chen, Nelson Sollenberger | 2010-01-26 |
| 7609110 | Filterless class-D speaker driver with less switching | — | 2009-10-27 |
| 7191203 | Method and system for high-speed multiplication | — | 2007-03-13 |
| 7132968 | Hardware-efficient implementation of dynamic element matching in sigma-delta DAC's | Anil Tammineedi | 2006-11-07 |
| 7123177 | System and method for stabilizing high order sigma delta modulators | Taiyi Cheng, Josephus Van Engelen | 2006-10-17 |
| 7119726 | Error feedback structure for delta-sigma modulators with improved stability | — | 2006-10-10 |
| 7030798 | State-delayed technique and system to remove tones of dynamic element matching | — | 2006-04-18 |