Inventor
Joseph H. Cattell
Inventor
Somerville, MA, US
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers50%
G10KSound-producing devices38%
H03GControl of amplification13%
PatentTitleYear
10,614,790Automatic gain control in an active noise reduction (ANR) signal flow path202010,580,398Parallel compensation in active noise reduction devices202010,553,195Dynamic compensation in active noise reduction devices202010,051,357Pressure equalization in earphones20189,860,626'On/off head detection of personal acoustic device'2018Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2018–2020Patents assigned to BOSE CORP (5)· patent assignee history
2018–2020Based in Somerville, MA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BOSE CORP | 5 | 2018–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Somerville, Massachusetts, US | 5 | 2018–2020 |