WO2003039191A1 - Microphone et accessoires bloc micro/haut-parleur mains libres - Google Patents

Microphone et accessoires bloc micro/haut-parleur mains libres Download PDF

Info

Publication number
WO2003039191A1
WO2003039191A1 PCT/US2002/033799 US0233799W WO03039191A1 WO 2003039191 A1 WO2003039191 A1 WO 2003039191A1 US 0233799 W US0233799 W US 0233799W WO 03039191 A1 WO03039191 A1 WO 03039191A1
Authority
WO
WIPO (PCT)
Prior art keywords
operator
eaφiece
piece
strap
microphone
Prior art date
Application number
PCT/US2002/033799
Other languages
English (en)
Inventor
Masahisa Masuda
Terry Hatori
Original Assignee
Matech, 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
Application filed by Matech, Inc. filed Critical Matech, Inc.
Publication of WO2003039191A1 publication Critical patent/WO2003039191A1/fr

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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1016—Earpieces of the intra-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041—Portable telephones adapted for handsfree use
    • H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
    • 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
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • 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
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1033—Cables or cables storage, e.g. cable reels
    • 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
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
    • H04R2201/107—Monophonic and stereophonic headphones with microphone for two-way hands free communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H04R5/0335—Earpiece support, e.g. headbands or neckrests

Definitions

  • Certain types of hands-free accessories such as headsets, neck straps, and earpieces generally include an earpiece having a speaker.
  • a microphone attachment may be mounted on an arm or suspended from a cord in proximity to the mouth of the user.
  • a cord 1 forms a loop for placement around a neck of an operator.
  • An earpiece 2 contains a speaker and is coupled on a wire 3 that extends from the looped cord 1.
  • a microphone 4 is integrated into the looped cord 1 and is disposed in proximity to the mouth of the operator when the cord 1 is worn around the operator's neck.
  • a plug 5 electronically connects the hands-free accessory to a phone (not shown) through a wire 6 that extends from the base of the loop 1.
  • the microphone 4 in FIG. 1 A is located in a fixed position with respect to the looped cord 1. An operator cannot adjust the location of the microphone 1 with respect to the corded loop 1. Even though two-way headsets have the microphone attached to a moveable arm, greater flexibility in microphone positioning is needed. New configurations of headsets are also needed that provide more effective two-way communication of audio
  • a hands-free headset contains both a microphone and speaker in the same earpiece of a loopdown headset.
  • the microphone is located at the bottom of the loopdown headset.
  • a hands-free microphone and speaker accessory includes a cord.
  • a microphone is attached to an extension wire that is connected at a first location along the cord.
  • the extension wire allows the microphone to can be positioned in many different locations, limited only by the length of the extension wire.
  • the microphone may be positioned in the ear of the operator, suspended in proximity to the mouth of the operator, or tucked inside the operator's clothing to muffle external sounds.
  • FIG. 1 A shows a conventional hands- free neck strap accessory containing a microphone and speaker for use with a phone.
  • FIG. IB shows a loopdown headset with a microphone located at the bottom of a loopdown band.
  • FIG. 2 shows the wiring contained in the loopdown headset shown in FIG. IB.
  • FIG. 3 shows where the wires are located in the loopdown headset.
  • FIG. 4 shows a wiring schematic for the loopdown headset.
  • FIG. 5 shows a perspective view of the loopdown headset that includes both a speaker and microphone in each ea ⁇ iece.
  • FIG. 6 shows a more detailed explosion view of the speaker and microphone located in one of the earpieces.
  • FIG. 7 shows a wiring diagram for the headset shown in FIGS. 5 and 6.
  • FIG. 8 is a side view of the loopdown headset previously shown in FIG. 5.
  • FIG. 9 is a perspective view of a two-way hands-free accessory.
  • FIG. 10 shows some of the different locations where a microphone on the hands- free accessory can be located.
  • FIGS. IB and 2 show a loop-down headset 12 that includes two earpieces 14 for inserting into the ears of an operator 10. Opposite ends of a semi-elastic band 15 are connected to the two earpieces 14.
  • the earpieces 14 each include relatively flat front faceplates 16 that contain screens 17 and a rounded rear portion 18.
  • Each earpiece 14 includes a speaker transducer 24 (FIG. 2) for converting an electrical receive (Rx) audio signal received over wires in cable 20 into sound waves.
  • a middle section 22 of the band 15 extends downwardly below a chin of the headset operator 10 and includes a molded piece 32 for holding a microphone transducer 26 that converts sound waves into electrical Transmit (Tx) audio signals.
  • the Tx signals are output on a wire in the cable 20.
  • the cable 20 extends through the band 15 between the two earpieces 14. Because the band 15 hangs down underneath the chin of the operator 10, the microphone transducer 26 can be located close to a mouth of the operator 10 and pick up the speech of the operator 10.
  • earpieces 14 are shown with cupped shapes, other types of earpieces can also be used.
  • the earpieces can comprise earmuff styles where the earpiece covers the entire outside ears of the operator 10.
  • the earmuff earpieces may include a foam pad that rests against the sides of the operator's head.
  • a disc style ea ⁇ iece can be used that may include a form pad that rests directly against the outside of the operator's ear without inserting directly into the ear.
  • Different types of ear plugs or ear plunger style ea ⁇ ieces can also be used that insert directly into the ear canal of the operator.
  • FIG. 3 is an expanded rear view of a portion of the band 15.
  • a channel 30 is formed into the backside of the band 15. The cable 20 then pressure fits into the channel 30 and securely held inside the band 15.
  • FIG. 4 is an electrical schematic diagram for the headset shown in FIGS. 1 and 2.
  • the transducers 24 in ea ⁇ ieces 14 are used for converting a received Rx signal into an audio output.
  • the transducer 26 is used for converting an audio input into a transmit Tx signal.
  • Each transducer 14 and 26 includes two electrical terminals.
  • Wire 33 connects ground nodes for transducers 24 and 26 together and terminates at the sleeve 34 of a plug 36.
  • a wire 38 is connected to the opposite terminals of the transducers 24, relative to the common terminal, and is connected to a ring portion 40 ofthe plug 36.
  • a wire 42 connects the opposite terminal of the microphone transducer 26, relative to the common terminal, to a tip portion 44 of the plug 36.
  • FIGS. 5 and 6 show another headset 49 that includes ea ⁇ ieces 50 that each include both a microphone and a speaker.
  • a first transducer 56 (FIG. 6) is positioned toward the front faceplate 58 of the ea ⁇ iece 50 and a second transducer 64 is positioned toward a rear end 52 of the ea ⁇ iece 50.
  • Transducer 56 operates as a microphone and the other transducer 64 operates as a speaker.
  • the transducers 56 and 64 are arranged in opposite directions in the ea ⁇ ieces 50 to prevent feedback.
  • a foam pad 62 dampens sound waves that may travel between the two transducers 56 and 64 to prevent audio feedback.
  • the transducer 56 is configured to operate as a microphone and the transducer 64 is configured to operate as a speaker.
  • the microphone transducer or the speaker transducer can be aligned toward the front of the ea ⁇ iece 50 and the other transducer can be aligned toward the rear of the ea ⁇ iece 50.
  • a first ea ⁇ iece 50 on the headset 49 has the speaker transducer 64 pointed toward the front of the first ea ⁇ iece 50 while the second ea ⁇ iece 50 on the headset 49 has the microphone transducer 56 pointed toward the front of the second ea ⁇ iece 50.
  • the microphone 56 is seated inside cavity 66 formed in pad 62 facing the faceplate 58.
  • the faceplate 58 includes a screen 60 that allows sound waves generated by the headset operator to pass through to microphone 56.
  • the speaker 64 seats inside of a cavity 68 formed in pad 62 and outputs sound waves generated from an input Rx signal through holes 72 in the rear end 52 of the ea ⁇ iece 50.
  • foam pad 62 Other types of material can be used instead of foam pad 62.
  • a nonconductive gel or epoxy material can be used to suspend the two transducers 56 and 64 inside of ea ⁇ iece 50 while at the same time isolating feedback between the two transducers.
  • An arm 76 connects the ea ⁇ iece 50 to a band 15 (FIG. 5) that loops down underneath the chin of the headset operator.
  • the full duplex dual transducer ea ⁇ ieces 50 can be used with other types of headsets, such as bands that rest on the top of the operator's head, or headsets that use earmuff or foam disc-type ea ⁇ ieces.
  • the dual transducer ea ⁇ ieces can also be used with ea ⁇ ieces that have no band but simply insert inside the ears of an operator and are coupled together only with wires.
  • FIG. 7 is an electrical schematic diagram of the full duplex headset shown in
  • Each ea ⁇ iece 50 has a ground wire 80 connected to a sleeve 88 of a plug 94.
  • a wire 86 connects the opposite end of speaker transducers 64, relative to the common terminal, to a ring portion 90 of the plug 94.
  • a wire 82 connects the opposite terminal of the microphone transducers 56, relative to the common terminal, to a tip portion 92 of the plug 94.
  • the side view of the headset 49 in FIG. 8 shows how the full duplex ea ⁇ ieces 50 both output audio signals 100 from the speakers 64 and receive audio signals 102 generated from ear canal of the operator.
  • the speaker transducer 64 converts an Rx signal into sound waves 100 that are output inside the operator's ear. When the operator speaks, the sound waves generated by the speaker are output from an internal canal of ear 104.
  • the microphone transducer 56 converts the sound waves into an electrical Tx signal.
  • FIGS. 9 and 10 show a hands-free accessory that includes a neck strap cord 112 having electrical wiring arranged therein.
  • a plug 114 is attached to one end of the cord 112 to electrically and physically connect to a one-way or two-way communication device, such as a cellular phone 116.
  • a first wire 118 extends from a first location along the cord 112.
  • a speaker 122 is located in an ea ⁇ iece 128 attached to a distal end of the first wire 118.
  • a second wire 120 extends from a second location along the cord 112.
  • a microphone 124 is attached to a distal end of the second wire 120.
  • the microphone 124 is preferably configured in an ea ⁇ iece 130 that can fit comfortably within an ear of an operator 140.
  • the plug 114 is attached to a hands-free connection on the cell phone 116.
  • the second strap 126 is attached to the main strap 112.
  • the second strap 126 is used for attaching to a hook on the cell phone 116.
  • the strap 126 in combination with the strap
  • the operator 140 places the neck strap 112 around his or her neck. The operator then places the ea ⁇ iece 128 containing the speaker 122 in one
  • the operator 140 can wrap the
  • the user can tuck the microphone ea ⁇ iece 130 inside his or her
  • the operator 140 can also extend the microphone 124 away from himself or herself to promote detection of environmental
  • the separate wire extension 120 allows the microphone ea ⁇ iece 130 to be placed in

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

L'invention concerne un casque d'écoute mains libres comprenant, selon une forme d'exécution, un microphone et un haut-parleur dans le même élément écouteur d'un casque à boucle. En variante, le microphone est disposé à la base du casque à boucle. Selon une autre forme d'exécution, un microphone et accessoires haut-parleur mains libres comprend un cordon. Un microphone est attaché à un fil rallonge qui est connecté en un premier emplacement le long du cordon. La rallonge permet de positionner le microphone en des emplacements différents, limités seulement par la longueur de la rallonge. Par exemple, le microphone peut être positionné dans l'oreille de l'opérateur, suspendu à proximité de la bouche de l'opérateur, ou placé à l'intérieur d'un vêtement de l'opérateur en vue d'étouffer les sons extérieurs.
PCT/US2002/033799 2001-10-26 2002-10-21 Microphone et accessoires bloc micro/haut-parleur mains libres WO2003039191A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US34368301P 2001-10-26 2001-10-26
US60/343,683 2001-10-26
US34260601P 2001-12-21 2001-12-21
US60/342,606 2001-12-21

Publications (1)

Publication Number Publication Date
WO2003039191A1 true WO2003039191A1 (fr) 2003-05-08

Family

ID=26993098

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/033799 WO2003039191A1 (fr) 2001-10-26 2002-10-21 Microphone et accessoires bloc micro/haut-parleur mains libres

Country Status (1)

Country Link
WO (1) WO2003039191A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099519A (en) * 1990-05-29 1992-03-24 Yu Guan Headphones
FR2755561A1 (fr) * 1996-11-07 1998-05-07 Neill Andre O Dispositif de captation de la voix et dispositif notamment de telephonie le comprenant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5099519A (en) * 1990-05-29 1992-03-24 Yu Guan Headphones
FR2755561A1 (fr) * 1996-11-07 1998-05-07 Neill Andre O Dispositif de captation de la voix et dispositif notamment de telephonie le comprenant

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