Invention Grant
- Patent Title: Noise canceling headphones
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Application No.: US17490636Application Date: 2021-09-30
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Publication No.: US11678105B2Publication Date: 2023-06-13
- Inventor: Vu Hoang Co Thuy
- Applicant: DEVIALET
- Applicant Address: FR Paris
- Assignee: DEVIALET
- Current Assignee: DEVIALET
- Current Assignee Address: FR Paris
- Agency: Stites & Harbison, PLLC
- Agent B. Aaron Schulman, Esq.
- Priority: FR 10064 2020.10.01
- Main IPC: A61F11/06
- IPC: A61F11/06 ; H04R1/10 ; G10K11/178 ; G10K11/16

Abstract:
The headphones (10) comprise:
a transducer (16) (12);
an noise-canceling processing chain (30, 40) comprising:
a microphone (31, 41);
a noise-canceling processing filter (34, 44) which comprises in series:
a stabilisation filter (34A, 44A) whose transfer function is substantially equal to the inverse of the transfer function of the processed secondary path, and
a noise cancellation filter (34B, 44B) whose transfer function is a noise cancellation transfer function.
The secondary path is formed between the transducer (16) and the eardrum, and
the transfer function of the processed secondary path is the transfer function of the secondary path combined with the transfer functions of the processing components, excluding the processing filter (34, 44).
a transducer (16) (12);
an noise-canceling processing chain (30, 40) comprising:
a microphone (31, 41);
a noise-canceling processing filter (34, 44) which comprises in series:
a stabilisation filter (34A, 44A) whose transfer function is substantially equal to the inverse of the transfer function of the processed secondary path, and
a noise cancellation filter (34B, 44B) whose transfer function is a noise cancellation transfer function.
The secondary path is formed between the transducer (16) and the eardrum, and
the transfer function of the processed secondary path is the transfer function of the secondary path combined with the transfer functions of the processing components, excluding the processing filter (34, 44).
Public/Granted literature
- US20220124431A1 Noise Canceling Headphones Public/Granted day:2022-04-21
Information query
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