Charles B. Harmke
14Patents
3h-index
13Co-inventors
53Inventor score
Filing activity: Feb 28, 2007 → Aug 5, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9232366B1 | Dual-watch collar-wearable communication device | Electricity | 37 | Active |
| US8909173B2 | Method and apparatus for operating accessory interface functions over a single signal | Electricity | 20 | Active |
| US9678909B1 | Methods and systems of exchanging data between an electronic device and an external accessory | Electricity | 4 | Active |
| US9807498B1 | System and method for beamforming audio signals received from a microphone array | Electricity | 3 | Active |
| US9998577B1 | Method and apparatus for managing noise levels using push-to-talk event activated vibration microphone | Electricity | 3 | Active |
| US10452584B2 | Multimode audio accessory connector | Physics | 2 | Active |
| US8271037B2 | Method and system for automatic audio accessory use position detection and audio adjustment | Electricity | 2 | Active |
| US10887685B1 | Adaptive white noise gain control and equalization for differential microphone array | Electricity | 2 | Active |
| US11381894B2 | Device with linear slots for water drainage | Electricity | 1 | Active |
| US10455340B1 | Validating the operation of a transducer and an audio signal path | Electricity | 1 | Active |
| US10236972B2 | Method and apparatus for providing expanded interface operation between a portable communication device and an accessory | Electricity | 1 | Active |
| US10779067B2 | Systems for reducing wind-induced noise and water infiltration in communication devices | Electricity | 1 | Active |
| US10069322B2 | Methods and systems of managing power in a portable electronic device | Electricity | 0 | Active |
| US10698850B2 | Multimode audio accessory connector | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.