TW549781U - Hand-free device capable of eliminating the feedback yell and background echo - Google Patents

Hand-free device capable of eliminating the feedback yell and background echo

Info

Publication number
TW549781U
TW549781U TW91213096U TW91213096U TW549781U TW 549781 U TW549781 U TW 549781U TW 91213096 U TW91213096 U TW 91213096U TW 91213096 U TW91213096 U TW 91213096U TW 549781 U TW549781 U TW 549781U
Authority
TW
Taiwan
Prior art keywords
yell
eliminating
feedback
hand
device capable
Prior art date
Application number
TW91213096U
Other languages
Chinese (zh)
Inventor
You-Fen Hu
Original Assignee
You-Fen Hu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by You-Fen Hu filed Critical You-Fen Hu
Priority to TW91213096U priority Critical patent/TW549781U/en
Publication of TW549781U publication Critical patent/TW549781U/en

Links

TW91213096U 2002-08-22 2002-08-22 Hand-free device capable of eliminating the feedback yell and background echo TW549781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW91213096U TW549781U (en) 2002-08-22 2002-08-22 Hand-free device capable of eliminating the feedback yell and background echo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW91213096U TW549781U (en) 2002-08-22 2002-08-22 Hand-free device capable of eliminating the feedback yell and background echo

Publications (1)

Publication Number Publication Date
TW549781U true TW549781U (en) 2003-08-21

Family

ID=29998335

Family Applications (1)

Application Number Title Priority Date Filing Date
TW91213096U TW549781U (en) 2002-08-22 2002-08-22 Hand-free device capable of eliminating the feedback yell and background echo

Country Status (1)

Country Link
TW (1) TW549781U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7697696B2 (en) 2005-01-12 2010-04-13 Yamaha Corporation Audio amplification apparatus with howling canceler
TWI686090B (en) * 2018-09-26 2020-02-21 新唐科技股份有限公司 Biasing circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7697696B2 (en) 2005-01-12 2010-04-13 Yamaha Corporation Audio amplification apparatus with howling canceler
TWI686090B (en) * 2018-09-26 2020-02-21 新唐科技股份有限公司 Biasing circuit
CN110955292A (en) * 2018-09-26 2020-04-03 新唐科技股份有限公司 Bias circuit
CN110955292B (en) * 2018-09-26 2022-02-08 新唐科技股份有限公司 Bias circuit

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Legal Events

Date Code Title Description
GD4K Issue of patent certificate for granted utility model filed before june 30, 2004
MM4K Annulment or lapse of a utility model due to non-payment of fees