Patents
US 12620385 B2: Low latency audio processing system having active noise cancellation for ear-worn hearing device
- Granted
- 2026-05-05
- Filed
- 2023-04-06 application 18131686
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An ear-worn hearing device includes a speaker disposed in a housing comprising a portion configured for wear over, on, or at least partially in a canal of a user's ear. Microphones are integrated with the housing, and a digital signal processing chain is coupled to and located between the microphones and the speaker. The digital signal processing chain includes active noise cancellation (ANC) circuitry configured to generate an anti-noise signal, and speaker-performance-enhancement circuitry coupled to the ANC circuitry and configured to generate a signal based on the anti-noise signal for the speaker. The digital signal processing chain is configured to communicate audio signals between the ANC circuitry and the speaker-performance-enhancement circuitry without changing a format of the audio signals.
Source: PTBLXML, file of 2026-05-05 (ipgb20260505.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Knowles Electronics, LLC 414 patents | US company or organization | Itasca, IL | PTBLXML, file of 2026-05-05 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Thomas E. Miller | Arlington Heights, IL | 58 | PTBLXML, file of 2026-05-05 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G10K | Sound-producing devices; methods or devices for protecting against, or for damping, noise or other acoustic waves in general; acoustics not otherwise provided for | G10K11/17823 | PTBLXML, file of 2026-05-05 |
| H04R | Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers; electric hearing aids; public address systems | H04R1/1041 | PTBLXML, file of 2026-05-05 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-04-06 | Assignment Assignment of assignor's interest | MILLER, THOMAS E. signed 2023-04-06 | KNOWLES ELECTRONICS, LLC ITASCA, IL | 63247/363 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.