WO2019060462A4 - Small subwoofer ceiling speaker system - Google Patents

Small subwoofer ceiling speaker system Download PDF

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Publication number
WO2019060462A4
WO2019060462A4 PCT/US2018/051821 US2018051821W WO2019060462A4 WO 2019060462 A4 WO2019060462 A4 WO 2019060462A4 US 2018051821 W US2018051821 W US 2018051821W WO 2019060462 A4 WO2019060462 A4 WO 2019060462A4
Authority
WO
WIPO (PCT)
Prior art keywords
subwoofer
acoustic channel
carrier
shell
channel shell
Prior art date
Application number
PCT/US2018/051821
Other languages
French (fr)
Other versions
WO2019060462A1 (en
Inventor
Johnathan Ivey
Original Assignee
Mitek Copr., Inc.
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 US15/710,654 external-priority patent/US10237636B1/en
Application filed by Mitek Copr., Inc. filed Critical Mitek Copr., Inc.
Priority to EP18859398.2A priority Critical patent/EP3685594A4/en
Priority to CA3071791A priority patent/CA3071791A1/en
Priority to AU2018336811A priority patent/AU2018336811A1/en
Priority to BR112020005606-5A priority patent/BR112020005606A2/en
Priority claimed from US16/135,870 external-priority patent/US10694278B2/en
Publication of WO2019060462A1 publication Critical patent/WO2019060462A1/en
Publication of WO2019060462A4 publication Critical patent/WO2019060462A4/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • 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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/023—Screens for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/026—Supports for loudspeaker casings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2811—Enclosures comprising vibrating or resonating arrangements for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/021—Transducers or their casings adapted for mounting in or to a wall or ceiling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/029—Manufacturing aspects of enclosures transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

A pair of subwoofer speakers mounted on a carrier in a ceiling speaker enclosure having a small acoustic port using an acoustic channel shell that extends from the enclosure, the output of which is directed by adjustable attachment of a director to the acoustic channel shell. An annular flange on the director is used to clamp to a bottom surface of a ceiling tile. The enclosure has braces for engaging grid members of a suspended ceiling support grid. The braces are independently extendable from the enclosure. The subwoofer speakers at least partially face each other. Vibration damping approaches are used. An audio controller may be used to control the phases of the audio signals to the subwoofer speakers to permit a push-pull synchronization strategy.

Claims

AMENDED CLAIMS
received by the International Bureau on 25 March 2019 (25.03.2019)
1. A small subwoofer ceiling speaker system comprising: a. a ceiling speaker enclosure having a bottom opening; b. a subwoofer carrier: i. externally and circumferentially mounted to a bottom panel of said ceiling speaker enclosure around said bottom opening; ii. having a central opening; and iii. extending into said ceiling speaker enclosure; c. first and second subwoofer speakers mountable on said subwoofer carrier, wherein said first and second subwoofer speakers have one of: i. coplanar intersecting long central axes when mounted; and ii. colinear long central axes when mounted; d. a partially externally threaded acoustic channel shell: i. extending from inside said ceiling speaker enclosure, through said central opening, and to outside said ceiling speaker enclosure; and ii. configured to conduct outputs from first and second subwoofer speakers out of said speaker enclosure; and e. a director adjustably and threadedly engageable to said partially threaded acoustic channel shell and operable, when so engaged, to direct said projected sound one of: i. downward; and ii. horizontally.
The system of claim 1, comprising a plurality of extendable braces configured to rest on grid members of a suspended ceiling system.
The system of claim 2, wherein each extendable brace of said plurality of extendable braces is independently extendable from said enclosure.
The system of claim 1, comprising an audio signal controller, wherein audio inputs to said first and second subwoofer speakers are phased such that said first subwoofer speaker pushes when said second subwoofer speaker pulls, and vice versa.
The system of claim 1, wherein said long central axes one of: a. intersect inside a conical portion of said acoustic channel shell; and b. align colinearly above, and proximate to, a wider end of said conical portion of said acoustic channel shell.
The system of claim 1, wherein said first and second subwoofer speakers are: a. horizontally spaced apart; b. opposed; and c. supported on said subwoofer carrier in one of: i. a diagonally downward-pointed orientation; and ii. horizontally axially aligned.
The system of claim 6, comprising at least one carrier support extending from a base
22 panel of said subwoofer carrier and attached to one of a rim and a basket of at least one subwoofer speaker.
8. The system of claim 7, comprising a basket support extending between, and
connecting to, respective first and second baskets of said first and second subwoofer speakers.
9. The system of claim 7, wherein: a. said carrier support comprises vibration damping materials; and b. said basket support comprises vibration damping materials;
10. The system of claim 1, wherein said acoustic channel shell comprises: a. a cylindrical shell fixed in said subwoofer carrier; and b. a conical shell extending upward from said cylindrical shell, widening toward said first and second subwoofers, and fixed in said subwoofer carrier.
11. The system of claim 10, wherein: a. said partially threaded acoustic channel shell comprises two separate sets of corresponding, circumferentially spaced-apart, opposed sets of exterior threads on said cylindrical shell; and b. said director comprises a director interface having a cylindrical shell body further comprising two separate sets of corresponding, circumferentially spaced-apart, opposed sets of interior threads corresponding to said exterior sets of threads on said partially threaded acoustic channel shell.
12. A small subwoofer ceiling speaker system comprising:
23 a. a ceiling speaker enclosure having a bottom opening; b. a subwoofer carrier: i. externally and circumferentially mounted to a bottom panel of said ceiling speaker enclosure around said bottom opening; ii. having a central opening; and iii. extending into said ceiling speaker enclosure; c. first and second subwoofer speakers mountable on said carrier, wherein said first and second subwoofer speakers have one of:
i. coplanar intersecting long central axes when mounted; and ii. colinear long central axes when mounted; d. a partially externally threaded acoustic channel shell: i. extending from inside said ceiling speaker enclosure, through said central opening, and to outside said ceiling speaker enclosure; and ii. configured to conduct outputs from first and second subwoofer speakers out of said speaker enclosure; and e. a director adjustably and threadedly engageable to said partially threaded acoustic channel shell and operable, when so engaged, to direct said projected sound one of: i. downward; and ii. horizontally; and
24 f. wherein said long central axes one of: i. intersect inside a conical portion of said acoustic channel shell; and ii. align colinearly above, and proximate to, a wider end of said conical portion of said acoustic channel shell.
13. The system of claim 12 comprising a plurality of independently extendable braces configured to rest on grid members of a suspended ceiling system.
14. The system of claim 12, comprising: a. a basket support extending between, and connecting to, respective first and second baskets of said first and second subwoofer speakers; and b. at least one carrier support extending from a base panel of said subwoofer carrier and attached to one of a rim and a basket of at least one said subwoofer speaker.
15. The system of claim 12, wherein said first and second subwoofer speakers are: a. horizontally spaced apart; b. opposed; and c. supported on said subwoofer carrier in one of: i. a diagonally downward-pointed orientation; and ii. horizontally axially aligned.
16. The system of claim 12, comprising an audio signal controller, wherein audio inputs to said first and second subwoofer speakers are phased such that said first subwoofer
25 speaker pushes when said second subwoofer speaker pulls, and vice versa.
17. The system of claim 12, wherein said acoustic channel shell comprises: a. a cylindrical shell fixed in said subwoofer carrier; and b. a conical shell extending upward from said cylindrical shell, widening toward said first and second subwoofers, and fixed in said subwoofer carrier; c. wherein: i. said partially threaded acoustic channel shell comprises two separate sets of corresponding, circumferentially spaced-apart, opposed sets of exterior threads on said cylindrical shell; and ii. said director comprises a director interface having a cylindrical shell body further comprising two separate sets of corresponding, circumferentially spaced-apart, opposed sets of interior threads corresponding to said exterior sets of threads on said partially threaded acoustic channel shell.
18. A small subwoofer ceiling speaker system comprising: a. a ceiling speaker enclosure having a bottom opening; b. a subwoofer carrier: i. externally and circumferentially mounted to a bottom panel of said ceiling speaker enclosure around said bottom opening; ii. having a central opening; and
26 iii. extending into said ceiling speaker enclosure; first and second subwoofer speakers mountable on said subwoofer carrier, wherein said first and second subwoofer speakers have one of: i. coplanar intersecting long central axes when mounted; and ii. colinear long central axes when mounted; a partially externally threaded acoustic channel shell: i. extending from inside said ceiling speaker enclosure, through said central opening, and to outside said ceiling speaker enclosure; and ii. configured to conduct outputs from first and second subwoofer speakers out of said speaker enclosure; wherein said acoustic channel shell comprises: i. a cylindrical shell fixed in said subwoofer carrier; and ii. a conical shell extending upward from said cylindrical shell, widening toward said first and second subwoofers, and fixed in said subwoofer carrier; f. wherein: i. said partially threaded cylindrical shell body comprises two
separate sets of corresponding, circumferentially spaced-apart, opposed sets of exterior threads on said cylindrical shell; and ii. said director comprises a director interface having a cylindrical
27 shell body further comprising two separate sets of corresponding, circumferentially spaced-apart opposed sets of interior threads corresponding to said exterior sets of threads on said partially threaded acoustic channel shell; g. a director adjustably and threadedly engageable to said partially threaded acoustic channel shell and operable, when so engaged, to direct said projected sound one of: i. downward; and ii. horizontally; and h. wherein said first and second subwoofer speakers are: i. horizontally spaced apart; ii. opposed; and iii. supported on said subwoofer carrier in one of:
1. a diagonally downward-pointed orientation; and
2. horizontally axially aligned; and i. wherein said long central axes one of: i. intersect inside a conical portion of said acoustic channel shell; and ii. align colinearly above, and proximate to, a wider end of said
conical portion of said acoustic channel shell.
19. The system of claim 18, comprising:
28 a. a plurality of independently extendable braces configured to rest on grid members of a suspended ceiling system; b. a basket support extending between, and connecting to, respective first and second baskets of said first and second subwoofer speakers; and c. at least one carrier support extending from a base panel of said subwoofer carrier and attached to one of a rim and a basket of at least one said subwoofer speaker.
20. The system of claim 18, comprising an audio signal controller, wherein audio inputs to said first and second subwoofer speakers are phased such that said first subwoofer speaker pushes when said second subwoofer speaker pulls, and vice versa.
29

Statements under Article 19(1)

Statements under Article 19(1) regarding Amendments to Claims 1, 2, 3, 5, 6, 8, 10, 11, 12, 13. 14. 15. 17. 18. 19

In regard to claim 1, Kim does not teach applicant's "partially externally threaded acoustic channel shell... extending from inside said ceiling speaker enclosure, through said central opening, and to outside said ceiling speaker enclosure" (claim 1, as amended). Cartlson teaches away from the use of his invention with subwoofers (Col. 2, lines 10-15), where Carlson enumerates "mid-bass/mid-range frequencies using cone-type loudspeakers and for high frequencies" but omits subwoofer frequencies. Under the enumeration rule, an item left off a list is deemd intentionally left off. Stewart's ceiling tile is not an enclosure.

In regard to claim 2, Stewart does not teach applicant's "plurality of extendable_braces" (claim 2, as amended), where Stewart's braces are fixed (FIG. 1).

In regard to claim 3, Stewart does not teach applicant's "each extendable brace of said plurality of extendable braces is independently extendable" (claim 3, as amended), where Stewart's braces are fixed (FIG. 1).

In regard to claim 5, neither Kim nor Carlson teaches applicant's "said long central axes ... align colinearly above, and proximate to, a wider end of said conical portion of said acoustic channel shell" (claim 5, as amended), where Kim has only one speaker and Kim's 30 is a speaker (col. 3, line 26) and not an acoustic channel shell and Carlson's axes align at the narrow end of his horn 52 (FIG. 3).

In regard to claim 6, Carlson does not teach applicant's "wherein said first and second subwoofer speakers are ... supported on said subwoofer carrier" (claim 6, as amended),

30 where "said subwoofer carrier" is described in claim 1 and Carlso does not have one and Carlson teaches away from subwoofers being used in his invention.

In regard to claim 8, Carlson does not teach applicant's "basket support extending between, and connecting to, respective first and second baskets of said first and second subwoofer speakers" (claim 8, as amended), where Carlson's tapered wedge 30 extends from edges of apertures 24 and 26 in panels 18 and 22, respectively (FIG. 1; col. 3, lines 22-36), and not from the speakers.

In regard to claim 10, Kim does not teach applicant's "said acoustic channel shell comprises ... a conical shell extending from said cylindrical shell, widening toward said first and second subwoofers, and fixed in said subwoofer carrier" (claim 10, as amended), where Kim's alleged subwoofer is at the narrow end of Kim's alleged acoustic channel shell (EFM 1).

In regard to claim 11, Kim does not teach applicant's "said partially threaded acoustic channel shell comprises two separate sets of corresponding, circumferentially spaced-apart, opposed sets of exterior threads on said cylindrical shell" (claim 11, as amended), ), where Kim has only one thread on Kim's alleged acoustic channel shell (col. 2, lines 27-31). Kim does not teach applicant's "director interface having a cylindrical shell body further comprising two separate sets of corresponding, circumferentially spaced-apart, opposed sets of interior threads corresponding to said exterior sets of threads on said partially threaded acoustic channel shell" (claim 11, as amended), where Kim has only one thread on Kim's alleged director interface (col. 2, lines 27-31).

31 In regard to claim 12, the statements regarding claims 1 and 5 are incorporated herein by reference.

In regard to claim 13, the statements regarding claims 2 and 3 are incorporated herein by reference.

In regard to claim 14, the statements regarding claim 8 are incorporated herein by reference.

In regard to claim 15, the statements regarding claim 6 are incorporated herein by reference.

In regard to claim 17, the statements regarding claims 10 and 11 are incorporated herein by reference.

In regard to claim 18, the statements regarding claims 1, 5, 6, 10, and 11 are incorporated herein by reference.

In regard to claim 19, the statements regarding claims 2, 3, and 8 are incorporated herein by reference.

32

PCT/US2018/051821 2017-09-20 2018-09-19 Small subwoofer ceiling speaker system WO2019060462A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP18859398.2A EP3685594A4 (en) 2017-09-20 2018-09-19 Small subwoofer ceiling speaker system
CA3071791A CA3071791A1 (en) 2017-09-20 2018-09-19 Small subwoofer ceiling speaker system
AU2018336811A AU2018336811A1 (en) 2017-09-20 2018-09-19 Small subwoofer ceiling speaker system
BR112020005606-5A BR112020005606A2 (en) 2017-09-20 2018-09-19 small ceiling subwoofer speaker systems

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US15/710,654 2017-09-20
US15/710,654 US10237636B1 (en) 2017-09-20 2017-09-20 Small ceiling speaker system
US16/135,870 US10694278B2 (en) 2017-09-20 2018-09-19 Small subwoofer ceiling speaker system
US16/135,870 2018-09-19

Publications (2)

Publication Number Publication Date
WO2019060462A1 WO2019060462A1 (en) 2019-03-28
WO2019060462A4 true WO2019060462A4 (en) 2019-05-16

Family

ID=65810833

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/051821 WO2019060462A1 (en) 2017-09-20 2018-09-19 Small subwoofer ceiling speaker system

Country Status (4)

Country Link
AU (1) AU2018336811A1 (en)
BR (1) BR112020005606A2 (en)
CA (1) CA3071791A1 (en)
WO (1) WO2019060462A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111953825A (en) * 2020-08-18 2020-11-17 维沃移动通信有限公司 Electronic device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4923031A (en) 1986-02-26 1990-05-08 Electro-Voice, Incorporated High output loudspeaker system
US6604602B1 (en) * 2002-09-30 2003-08-12 Chae Yong Kim Separable speaker cover box containing speaker system
US7530425B2 (en) * 2006-06-08 2009-05-12 Whitaker Scott R Speaker enclosure for a ceiling or wall mounted speaker method and apparatus
US8286749B2 (en) * 2008-06-27 2012-10-16 Rgb Systems, Inc. Ceiling loudspeaker system
US8634586B2 (en) 2009-06-26 2014-01-21 Polk Audio, Inc. Ceiling-mounted loudspeaker enclosure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111953825A (en) * 2020-08-18 2020-11-17 维沃移动通信有限公司 Electronic device
CN111953825B (en) * 2020-08-18 2021-06-01 维沃移动通信有限公司 Electronic device

Also Published As

Publication number Publication date
CA3071791A1 (en) 2019-03-28
BR112020005606A2 (en) 2020-09-29
WO2019060462A1 (en) 2019-03-28
AU2018336811A1 (en) 2020-02-27

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