WO2023146770A3 - Determination and avoidance of over-excursion of internal mass of transducer - Google Patents

Determination and avoidance of over-excursion of internal mass of transducer Download PDF

Info

Publication number
WO2023146770A3
WO2023146770A3 PCT/US2023/010933 US2023010933W WO2023146770A3 WO 2023146770 A3 WO2023146770 A3 WO 2023146770A3 US 2023010933 W US2023010933 W US 2023010933W WO 2023146770 A3 WO2023146770 A3 WO 2023146770A3
Authority
WO
WIPO (PCT)
Prior art keywords
excursion
over
internal mass
transducer
avoidance
Prior art date
Application number
PCT/US2023/010933
Other languages
French (fr)
Other versions
WO2023146770A2 (en
Inventor
Aleksey S. Khenkin
Anil Lal
Hamid Sepehr
Filippo Rossi
Vadim Konradi
Marco A. Janko
Chin H. YONG
Colin Campbell
Original Assignee
Cirrus Logic International Semiconductor Ltd.
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
Priority claimed from US18/095,305 external-priority patent/US20230245537A1/en
Application filed by Cirrus Logic International Semiconductor Ltd. filed Critical Cirrus Logic International Semiconductor Ltd.
Priority to CN202380019050.1A priority Critical patent/CN118715789A/en
Priority to GBGB2409926.9A priority patent/GB202409926D0/en
Priority to KR1020247025719A priority patent/KR20240141749A/en
Publication of WO2023146770A2 publication Critical patent/WO2023146770A2/en
Publication of WO2023146770A3 publication Critical patent/WO2023146770A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Control Of Electric Motors In General (AREA)
  • Gyroscopes (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

A method for determining and mitigating over-excursion of an internal mass of an under-damped electromechanical transducer may include transforming an electrical playback signal to an estimated displacement signal, based on the estimated displacement signal, determining an estimated over-excursion of the internal mass responsive to the electrical playback signal, and limiting, based on the estimated over-excursion, an electrical driving signal derived from the electrical playback signal and for driving the electromechanical transducer in order to mitigate over-excursion of the internal mass.
PCT/US2023/010933 2022-01-28 2023-01-17 Determination and avoidance of over-excursion of internal mass of transducer WO2023146770A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202380019050.1A CN118715789A (en) 2022-01-28 2023-01-17 Determination and avoidance of excessive deflection of the inner mass of a transducer
GBGB2409926.9A GB202409926D0 (en) 2022-01-28 2023-01-17 Determination and avoidance of over-excursion of internal mass of transducer
KR1020247025719A KR20240141749A (en) 2022-01-28 2023-01-17 Determination and prevention of excessive displacement of the internal mass of the converter

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202263304011P 2022-01-28 2022-01-28
US63/304,011 2022-01-28
US18/095,305 2023-01-10
US18/095,305 US20230245537A1 (en) 2022-01-28 2023-01-10 Determination and avoidance of over-excursion of internal mass of transducer

Publications (2)

Publication Number Publication Date
WO2023146770A2 WO2023146770A2 (en) 2023-08-03
WO2023146770A3 true WO2023146770A3 (en) 2023-09-21

Family

ID=85283839

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/010933 WO2023146770A2 (en) 2022-01-28 2023-01-17 Determination and avoidance of over-excursion of internal mass of transducer

Country Status (3)

Country Link
KR (1) KR20240141749A (en)
GB (1) GB202409926D0 (en)
WO (1) WO2023146770A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6584204B1 (en) * 1997-12-11 2003-06-24 The Regents Of The University Of California Loudspeaker system with feedback control for improved bandwidth and distortion reduction
US20180160227A1 (en) * 2016-12-06 2018-06-07 Cirrus Logic International Semiconductor Ltd. Speaker protection excursion oversight
US20180160228A1 (en) * 2016-12-01 2018-06-07 Cirrus Logic International Semiconductor Ltd. Speaker adaptation with voltage-to-excursion conversion
US20180321748A1 (en) * 2017-05-08 2018-11-08 Cirrus Logic International Semiconductor Ltd. Integrated haptic system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6584204B1 (en) * 1997-12-11 2003-06-24 The Regents Of The University Of California Loudspeaker system with feedback control for improved bandwidth and distortion reduction
US20180160228A1 (en) * 2016-12-01 2018-06-07 Cirrus Logic International Semiconductor Ltd. Speaker adaptation with voltage-to-excursion conversion
US20180160227A1 (en) * 2016-12-06 2018-06-07 Cirrus Logic International Semiconductor Ltd. Speaker protection excursion oversight
US20180321748A1 (en) * 2017-05-08 2018-11-08 Cirrus Logic International Semiconductor Ltd. Integrated haptic system

Also Published As

Publication number Publication date
GB202409926D0 (en) 2024-08-21
KR20240141749A (en) 2024-09-27
WO2023146770A2 (en) 2023-08-03

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