Henry Chang
306Patents
8h-index
33Co-inventors
80Inventor score
Filing activity: Mar 27, 2003 → May 22, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7085571B2 | System and method for using geographical location to determine when to exit an existing wireless communications coverage network | Electricity | 409 | Expired |
| US6973298B2 | Location capable mobile handset | Electricity | 29 | Expired |
| US7499691B1 | Systems and methods for selecting an antenna configuration in a mobile communication device | Electricity | 20 | Active |
| US7847740B2 | Antenna system having receiver antenna diversity and configurable transmission antenna and method of management thereof | Electricity | 18 | Expired |
| US9900925B2 | Mobile communication system, control apparatus, base station, and user terminal supporting dual connectivity | Electricity | 10 | Active |
| US9699702B2 | Communication control method, master base station, secondary base station, and user terminal | Electricity | 10 | Active |
| US8238921B2 | User zone information transmission management | Electricity | 9 | Active |
| US9100858B2 | Mobile communication method, radio terminal, and base station | Electricity | 8 | Active |
| US10244449B2 | Communication method, user terminal and processor | Electricity | 8 | Active |
| US8666445B2 | Apparatus, system, and method for transmission antenna switching in a portable communication device | Electricity | 8 | Active |
| US11350445B2 | Communication control method for controlling a user equipment to perform early data transmission | Electricity | 8 | Active |
| US7577411B2 | Mobile station access and idle state antenna tuning systems and methods | Electricity | 7 | Active |
| US10750380B2 | Base station and radio terminal | Emerging Cross-Sectional Technologies | 7 | Active |
| US9788250B2 | Communication control method and user terminal | Electricity | 6 | Active |
| US9844047B2 | Mobile communication system that supports a dual connectivity management | Electricity | 6 | Active |
| US11252612B2 | RAN-assisted rate adaptation | Electricity | 6 | Active |
| US7437170B2 | System and method for efficient push-to-talk communications | Electricity | 6 | Active |
| US9451609B2 | Mobile communication system that supports a dual connectivity management | Electricity | 6 | Active |
| US7508791B2 | Wireless communication coding and transmission systems and methods | Electricity | 6 | Active |
| US9936515B2 | Communication control method | Electricity | 6 | Active |
| US9736727B2 | Communication control method, user terminal, and processor | Electricity | 5 | Active |
| US9572087B2 | Network selection control method and user terminal | Electricity | 5 | Active |
| US8126423B2 | E911 location reporting without PSAP support | Electricity | 5 | Active |
| US8165606B2 | Apparatus, system, and method for location information management in a portable communication device | Electricity | 4 | Active |
| US7567807B2 | Apparatus and method for performing handoff with a mobile station having a smart antenna | Electricity | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.