Acoustic Technology LLC
7Patents
2Active
7Granted
32Portfolio score
Filing activity: Dec 30, 1999 → May 19, 2003 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6904146B2 | Full duplex echo cancelling circuit | Electricity | 23 | Expired |
| US6990194B2 | Dynamic balance control for telephone | Electricity | 22 | Expired |
| US6928160B2 | Estimating bulk delay in a telephone system | Electricity | 10 | Expired |
| US6931124B1 | Soft mute circuit | Electricity | 4 | Expired |
| US6963642B1 | Band-by-band full duplex communication | Electricity | 2 | Expired |
| US7466870B2 | Apparatus and method for creating effects in video | Physics | 2 | Active |
| US7873260B2 | Video and audio processing control | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.