CN1930857B - Hands-free personal communication device - Google Patents
Hands-free personal communication device Download PDFInfo
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- CN1930857B CN1930857B CN2005800078927A CN200580007892A CN1930857B CN 1930857 B CN1930857 B CN 1930857B CN 2005800078927 A CN2005800078927 A CN 2005800078927A CN 200580007892 A CN200580007892 A CN 200580007892A CN 1930857 B CN1930857 B CN 1930857B
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- communication device
- personal communication
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Abstract
A hands-free personal communication device is worn about a user's neck. The communication device includes an elongated elastic neckband for supporting the communication device about the user's neck. The elastic neckband has memory characteristic and is bendable along its length such that the neckband is formable into and out of various selectable positions. An acoustic output device is attached to the neckband and positioned near an ear of the user when the communication device is worn about the user's neck. A microphone is attached to an end of the neckband. A detachable earbud may be attached to an end of the neckband.
Description
Technical field
The present invention relates to the hands-free personal communication device field, particularly a kind of user's neck hands-free personal communication device on every side that is worn over.
Background technology
Hands-free personal communication device is used for various known specialties and personal device.Generally speaking, hands-free personal communication device frees user's hand when carrying out other different task in expectation, and is all useful concerning any application with single channel or duplex communication.Hands-free personal communication device is used by for example telephone operator and media user, and they utilize this device to receive and/or transmission information, and both hands are used for other task simultaneously.
Telephone headset is the well-known example of hands-free personal communication device.The head that telephone headset generally is worn over the user is gone up and is had relative loud speaker, one of each of user ear, and telephone headset is attached with the headband that extends in the user crown.These devices also can comprise suspension rod, and first end of this suspension rod attaches to headband, and second end includes Mike's branch.This suspension rod is generally flexible and has memory characteristic, suspension rod can be positioned like this outside various selectable locations or its.
The very big shortcoming of known telephone headset is to wear uncomfortablely, and can become snarls or disarray user's hair.Known telephone headset can't as desiredly be conditioned and have usually the user that rigidity is unsuitable for having the wide region of different physical qualifications.Because of most telephone headsets are arranged to user's ear and/or head is permanent contacts, a lot of users complain that head and/or ear are uncomfortable.
The 10/218th, No. 277 disclosed content of the U.S. Patent application of present inventor Christopher Gantz is incorporated herein by reference in the lump at this, and it has disclosed a kind of worn personal communication and speaker system of the user's of being worn on neck.This communication and speaker system comprise fastening neck band and the adjustable microphone support arm that attaches to speaker cover.Fastening neck band can convert the auris dextra structure to from left ear structure around rotational 180 degree, and vice versa.With respect to speaker cover, liner attaches to the far-end of fastening neck band.In a kind of certain embodiments, speaker cover can and automatically switch to the headphone pattern from its base portion disengaging, and wherein loud speaker is installed in user's the ear.
By known telephone headset, above-mentioned patent application has solved some the problems referred to above.But, also expect this kind device is further improved.Such as, expectation provides a kind of bodily form and the size of modifying device to be suitable for wide region of easier adjusting.Also expectation provides a kind of easier device of regulating between headphone and headphone use.
So, expect that a kind of improved hands-free personal communication device is to overcome the shortcoming of known devices.Expectation provides communicator a kind of self-supporting, that may be adjusted to the individuality that is suitable for the different bodily forms.Expectation provides a kind of communicator that can easily wear and take.Expectation provides a kind of hand-hold communication device of exempting from that is suitable for the left side user or is suitable for the right side user.Expectation provides a kind of can eliminate ear and the head discomfort that often is associated with known telephone headset.Also expectation provides a kind of and can keep or improve the sound input and output quality of current known devices and the communicator of performance.
Summary of the invention
The invention provides a kind of hands-free personal communication device that overcomes the known devices shortcoming.
This hands-free personal communication device comprises the elastic neckband band of elongation, it is supported on communicator around user's neck. and the neck band has memory characteristic and can be along its length or partial-length deflection, like this, the neck band just can be positioned outside various selectable locations or its. when this communicator is worn on around user's neck, voice output attaches to the neck band and is located in close user's ear place. and microphone attaches to first end of elasticity suspension rod, and the elasticity suspension rod attaches to the neck band.
This hands-free personal communication device also can comprise such as the earphone of second end that attaches to the neck band or ear's protruding part (earbud).When communicator was worn on around user's neck, this earphone can separate from the neck band made earphone can be inserted in user's the ear.Being provided to earphone communicates by letter with realization with the electrical connection from microphone.
Hands-free personal communication device of the present invention can be adjusted and install easily, makes comfortable wearing and fastening and stably be centered around around the neck, above shoulder place or its.Advantage is as follows: directly do not contact the health more sensitive area as ear and head or scalp.。The present invention meets ergonomics, has substituted conventional headset or ear's electrophone.Apparatus of the present invention the combination of loud speaker and microphone is placed on the junction of user's neck and shoulder or near, so just do not need to contact by any way or be installed to user's head or ear.By moving freely of providing of the elasticity of neck band and memory characteristic with rotation has significant advantage, wherein desired have mobility, stability and a comfortableness.
In addition, in one embodiment of the invention, if desired, then allow the user that separable ear protruding part is placed in user's the ear.By this layout, the user can be easily separates ear's protruding part and be inserted into from the elastic neckband band and carries out the more interchange of secret the user ear.In addition, hands-free personal communication device can comprise that switch and/or control module change over the headphone pattern with the output that will install from intercom mode, make when the user temporarily (for example, because of short duration individual privacy) need not control volume when being placed into ear's protruding part in the ear.This switch can be that manually perhaps this device can be configured to like this, promptly when using ear's protruding part, can automatically switch to the headphone pattern.
Description of drawings
Accompanying drawing shows the current enforcement that can visualize preferred forms of the present invention.
Wherein:
Fig. 1 is the perspective elevation that is worn on user's neck hands-free personal communication device on every side;
Fig. 2 is the vertical view of hands-free personal communication device first embodiment;
Fig. 3 is the vertical view of hands-free personal communication device shown in Figure 2, wherein ear's protruding part is removed;
Fig. 4 is the vertical view of this device, shows the memory characteristic and the flexibility of the elastic neckband band of elongation;
Fig. 5 is the end view of hands-free personal communication device;
Fig. 6 is the enlarged drawing of control module;
Fig. 7 is the sectional view of the amplification of hands-free personal communication device;
Fig. 8 is the vertical view cutaway drawing of acoustic component;
Fig. 9 is the vertical view of the alternate embodiment of hands-free personal communication device;
Figure 10 is the perspective elevation that is worn on the alternate embodiment of user's neck hands-free personal communication device on every side; And
Figure 11 is the vertical view of the alternate embodiment of hands-free personal communication device.
Embodiment
In the preferred embodiment of the present invention of following detailed description, provide a kind of hands-free personal communication device.Should be appreciated that specification and accompanying drawing are considered to the example of the principle of the invention, it more specifically is limited in the appending claims.
Consult Fig. 1 and Fig. 2, showing the preferred embodiment of hands-free personal communication device of the present invention. neckset 15 comprises the elastic neckband band 17 of elongation, being used for neckset 15 is supported on around user's neck. elastic neckband band 17 can be along its partial-length deflection and/or distortion and have memory characteristic at least, make when neck band 17 moves to certain position, keep this position. therefore, the shape and the position that can change neck band 17 cosily are fitted in around user's neck it. and this point also can make the various acoustic components by neck 17 (seeing for details following) carrying be positioned for example not interfere the position of user's chin or face. as shown in Figure 1, neck band 17 be worn on user's neck 16 around, and be shelved on any shoulder 14 of user, perhaps be shelved in the handing-over zone of shoulder 14 and neck 16. because neck band 17 can and have memory characteristic along its length deflection and/or distortion, its shape is made and can be suitable for being fitted in around user's the individual bodily form, makes to have stability and comfortable wearing.
With reference now to Fig. 1,2,7,8,, in a certain embodiments, elastic neckband band 17 comprises line 20 or the metal tube and the flexible rubber coating 22 of deflection, preferably includes thermoplastic elastomer (TPE).Yet, will be appreciated that elastic neckband band 17 can comprise a kind of in the various known materials with flexible and shape memory characteristic makes neck band 17 can be positioned along its whole length or optionally along outside each position or this position of its partial-length.
Voice output or loud speaker 19 attach on the elastic neckband band 17 on the whole and are contained within the speaker cover 31.Loud speaker 19 receives audio frequency and electricity input from loudspeaker audio line/power line 21, and this loud speaker 19 can comprise a kind of of various audio tweeters known in the art.But, loud speaker 19 should provide enough audio frequency output, makes when neckset 15 is worn on around user's neck, and the user can hear this audio frequency output, and loudspeaker housing places on user's shoulder, and this will further address and as shown in fig. 1 following.The audio frequency output of loud speaker 19 can be controlled by the volume control piece, and this volume control piece is revolving part 18 in an embodiment.
Consult Fig. 1 and Fig. 2, speaker screen 30 covers loud speaker 19 and protects loud speaker 19 to avoid infringement.Speaker screen 30 preferably is made of metal and comprises a series of holes 28, allows audio frequency to transmit by speaker screen 30 from loud speaker 19.
Audio/power cord 21 is provided to the audio frequency and the signal of telecommunication neckset 15 and comprises the 2.5mm plug, by the strain relief (not shown) 2.5mm plug is connected to speaker cover 31.Strain relief provides intensity and durability for this connection, and is preferably formed by the cone rubber piece that otch is arranged, and this cone rubber piece provides flexible and is connected with durability.Will be appreciated that for a person skilled in the art, neck band 17 can comprise radio transmitters, comes alternate audio line/power line 21.This arrangement also can comprise the independent power supply such as battery, and being used for provides power supply to the various acoustic components that this device is provided with.
Shown in Fig. 1,2,7, neckset 15 further comprises the suspension rod arm 23 of deflection, and this suspension rod arm 23 has the microphone 25 that attaches to its far-end 27, and this far-end 27 is the far-end for loud speaker 19.The suspension rod arm 23 of deflection is preferably formed by the deflection material and flexible rubber coating 22 structures of for example electric wire, flexible memory plastics or metal tube 20, preferably includes to comprise thermoplastic polymer.Suspension rod arm 23 can be positioned along outside each position or this position of its whole length or partial-length.Microphone 25 attaches to the end of suspension rod arm 23 and comprises any known microphones, is used for receiving sound from external source.Microphone 25 is packed in the foam cap 26 so that wind noise is isolated and still allowed audio pickup from microphone 25.Therefore, suspension rod arm 23 can be positioned to make it can easily move to each position and will rest on the position that this moves.The face that this makes microphone 25 be located in not interfere the user and the position of chin, and think to speak softly and still can be heard the time, can make microphone 25 shift near the user as the user.
With reference now to Fig. 3 and Fig. 7,, the neckset 15 of illustrated embodiment comprises separable earphone, but attaching to far-end 49. ear's protruding parts 47 of elastic neckband band 17 with being commonly referred to ear's protruding part 47. ear's protruding parts 47 release properties, this area can remain connected to elastic neckband band 17. according to this layout from 17 separation of elastic neckband band and by retractable power cord/tone frequency channel wire 51, ear's protruding part 47 can be easily removed and is attached to elastic neckband band 17. again in the embodiment shown from elastic neckband band 17, and retractable power cord/tone frequency channel wire 51 is contained in the cavity 54 of appearance.
Ear's protruding part 47 and neckset 15 can comprise radio transmitters in addition, and ear's protruding part 47 can comprise power supply.In this arrangement, power/audio cord 51 is nonessential, because ear's protruding part 47 can pass through neckset 15 wireless transmissions.Ear's protruding part 47 have many can be by the advantage that those skilled in the art were familiar with.Ear's protruding part 47 provides privacy for the people who uses neckset 15.Compare loud speaker 19, ear's protruding part 47 has improved the user and has heard the ability that audio frequency is exported.When neckset 15 was used for crowded and/or noisy environment, this point was particularly important.
With reference to figure 7, the far-end 49 of elastic neckband band 17 has been determined open-ended cavity 54, holds and keep ear's protruding part 47 but be used for release property ground.Arrange that according to this sidepiece 44 of open-ended cavity 54 has flexibility, makes ear's protruding part 47 can be inserted into the cavity 54 that is arranged on the elastic neckband band 17 easily, and shifts out from this cavity 54.In an illustrated embodiment, ear's protruding part 47 has the collar 48 of outside protrusion, the shape of this collar 48 and size are set to be contained in the structure that snap cooperates by the ring-shaped groove 52 that is arranged in cavity 54 inside, but safety also remains on ear's protruding part 47 in the cavity 54 on release property ground thus.But also can adopt the connection of other various release properties, for example adopt such layout, wherein the size of ear's protruding part 47 and shape can be press-fit in the cavity 54.
In an illustrated embodiment, retractable power cord/tone frequency channel wire 51 is contained in the open ended cavity 54, can easily power/audio cord 51 and ear's protruding part 47 be shunk and expansion like this.In Fig. 7, power/audio cord 51 is in contraction state, and ear's protruding part 47 is nested in the open ended cavity 54.Power/audio cord 51 attaches to ear's protruding part 47 by strain relief member 53, and strain relief member 53 provides intensity and durability for this connection, and strain relief member 53 is preferably formed and provide being connected of flexibility and durability by the cone rubber piece that otch is arranged.
In the use, ear's protruding part 47 separates and is inserted into the user ear from neckset 15, provides audio frequency to the user thus.From neckset 15 removals loud speaker 19 audio frequency are stopped ear's protruding part 47, perhaps can control ear's protruding part 47 and loud speaker 19 by control module 41 (shown in Fig. 6).The volume of control module 41 control loudspeakers 19.More specifically, control module 41 comprises volume control, and it is can manually operated rolling member 43 in the embodiment shown.In addition, control module 41 can comprise on/off switch 45, is used for optionally electric energy being offered neckset 15, comprises loud speaker 19 and microphone 25.Preferably, control module 41 also comprises the amplifier (not shown), is used for electricity and drives from microphone 25 and arrive the audio frequency input of loud speaker 19.This module 41 also can comprise the device that power supply is provided to neckset 15, such as battery etc.
With reference to figure 4, neckset 15 can be regulated, and promptly loud speaker 19 can be positioned to be suitable for left ear or auris dextra user.As shown in arrow 35, elastic neckband band 17 can be regulated 180 degree around axis 36, makes left side structure 37 and right structure 39 all become possibility.Except shown in the structure, elastic neckband band 17 can be located like this, promptly neck band 17 sizes are suitable for individual user's the bodily form.For example, if user's neck broad, neck band 17 can be positioned to loud speaker 19 and ear's protruding part 47 are further separated.
With reference to figure 5, show the end view of neckset 15.
With reference to figure 9, the neckset 15 of additional embodiment comprises the cavity 57 of appearance, and its far-end 49 along neck band 17 opens wide.Primely, when ear's protruding part 47 was inserted in the user ear, the cavity 57 of appearance allowed power/audio cord 51 to extend on the direction of the far-end 49 of the neck band 17 that crosses elongation.
In specific arrangements shown in Figure 9, ear's protruding part 47 comprises the Tapered Cup 59 of elongation, size is more smaller than the width of cavity 54 of appearance. and in this arrangement, but the Tapered Cup 59 of elongation is press-fit into far-end 49 places that with release property ground ear's protruding part 47 are fastened to neck band 17 in the cavity 54 of appearance.
With reference to Figure 10, the far-end 49 that it is also understood that neck band 17 can comprise the loud speaker 55 of extra installation, and it is additional to or substitutes ear's protruding part 47.In this arrangement, loud speaker 19,55 sound that is arranged on the either side of user's head and ears are provided is to the user.
With reference to Figure 11, in the shown layout, the far-end 49 of neck band 17 comprises the cavity 61 of the appearance of end sealing.In this arrangement, the size of ear's protruding part 47 and shape are arranged to be suitable for within the cavity 61 that is installed to the appearance of sealing the end by press-fit manner, but make release property ground ear's protruding part 47 be attached to the far-end 49 of neck band 17.
Should be appreciated that neckset 15 can be applicable to various occasions.As follows, loud speaker 19,55, ear's protruding part 47 and microphone 25 can be waterproofing design.Briefly with reference to figure 7, the waterproof paper (not shown) can make on microphone 25 preventing and make moist or damage because of water.In addition, speaker cover 31 can comprise the waterproof paper (not shown), and this waterproof paper preferably is positioned top or the inboard of bottom and/or loud speaker shielding part 30 and the bottom of speaker cover 31 of loud speaker 19.Waterproof paper stops water to enter speaker cover 31 and loud speaker 19 is damaged.
Should also be appreciated that the neckset 15 of embodiment can comprise ear's protruding part 47.In this arrangement, when neckset 15 was worn on around user's neck, the far-end 49 of neck band 17 can form the weight that is subjected to heavy protruding part to come offset loud speaker 19, suspension rod arm 23 and microphone 25.
Although the present invention is subject to many multi-form embodiment influences, specification and accompanying drawing have specifically described the preferred embodiments of the present invention.But do not wish that the scope that the present invention is wide is limited in the described embodiment.
Claims (29)
1. a hands-free personal communication device is used to be worn on around user's neck, and described communicator comprises:
The elastic neckband band of elongation, be used for communicator is supported on around user's neck, described neck band has memory characteristic to make and can keep this position and can be along its length deflection during to a certain position when the neck Tape movement, like this, described neck band just can be formed at outside various selectable locations or these positions;
Voice output, it attaches on the described neck band, and when described communicator was worn on around user's neck, described voice output can be located adjacent to user's ear place;
Microphone, it attaches to first end of described neck band, described communicator has the earphone that attaches to described neck band, and described earphone can separate from described neck band, makes that described earphone can be inserted in the user ear when described communicator is worn on around user's neck.
2. hands-free personal communication device according to claim 1 is characterized in that: it also comprises the electrical connection between described earphone and the described communicator.
3. hands-free personal communication device according to claim 1 is characterized in that: it also comprises battery.
4. hands-free personal communication device according to claim 1 is characterized in that: it also comprises the wired electrical connection between described earphone and the described communicator.
5. hands-free personal communication device according to claim 1 is characterized in that: it also comprises the wireless electrical connection between described earphone and the described communicator.
6. hands-free personal communication device according to claim 1 is characterized in that: it also comprises the earphone of second end that attaches to described neck band.
7. hands-free personal communication device according to claim 1 is characterized in that: described elastic neckband band comprises the line and the flexible rubber coating of deflection.
8. hands-free personal communication device according to claim 1, it is characterized in that: it also comprises the suspension rod of the band weight of second end that attaches to described neck band, when described device was worn on around user's neck, the suspension rod of described band weight had enough weight to offset described voice output and microphone.
9. hands-free personal communication device according to claim 1 is characterized in that: it also comprises the device of the volume that is used to control described voice output.
10. hands-free personal communication device according to claim 1 is characterized in that: described voice output comprises audio tweeter.
11. hands-free personal communication device according to claim 1 is characterized in that: described earphone is connected in described communicator by electric wire, and described neck band comprises cavity, so that described electric wire flexible and launching.
12. hands-free personal communication device according to claim 1 is characterized in that: it also comprises near second voice output the another ear that attaches to described neck band and can be positioned the user.
13. hands-free personal communication device according to claim 1 is characterized in that: it also comprises the neck tie rod that attaches to described neck band, to provide additional stability to the neck band.
14. hands-free personal communication device according to claim 1 is characterized in that: described voice output is a waterproof.
15. hands-free personal communication device according to claim 1 is characterized in that: described microphone is a waterproof.
16. a hands-free personal communication device is used to be worn on around user's neck, described communicator comprises:
The elastic neckband band of elongation is used for described communicator is supported on around user's neck;
Voice output, it attaches to the elastic neckband band of described elongation and when described communicator was worn on around user's neck, described voice output can be located adjacent to user's ear place;
Attach to the microphone of first end of described neck band;
Attach to the earphone of the end of described neck band, when described communicator was worn on around user's neck, described earphone can and can be inserted in user's the ear from described neck band separation;
Attach to the suspension rod of band weight of second end of described neck band, when described device was worn on around user's neck, the suspension rod of described band weight had enough weight to offset voice output and microphone.
17. hands-free personal communication device according to claim 16 is characterized in that: described earphone removably attaches to communicator by the electric wire with memory characteristic.
18. hands-free personal communication device according to claim 16 is characterized in that: it also comprises the electrical connection between described earphone and the described communicator.
19. hands-free personal communication device according to claim 16 is characterized in that: it also comprises battery.
20. hands-free personal communication device according to claim 16 is characterized in that: it also comprises the wired electrical connection between described earphone and the described communicator.
21. hands-free personal communication device according to claim 16 is characterized in that: it also comprises the wireless electrical connection between described earphone and the described communicator.
22. hands-free personal communication device according to claim 16 is characterized in that: described elastic neckband band comprises the line and the flexible rubber coating of deflection.
23. hands-free personal communication device according to claim 16 is characterized in that: it also comprises the device of the volume that is used to control voice output.
24. hands-free personal communication device according to claim 16 is characterized in that: described voice output comprises audio tweeter.
25. hands-free personal communication device according to claim 16 is characterized in that: described earphone is connected in described communicator by electric wire, and described neck band comprises cavity, so that described electric wire flexible and launching.
26. hands-free personal communication device according to claim 16 is characterized in that: it also comprises near second voice output the another ear that attaches to described neck band and can be positioned the user.
27. hands-free personal communication device according to claim 1 is characterized in that: it also comprises the neck tie rod that attaches to described neck band, to provide additional stability to the neck band.
28. hands-free personal communication device according to claim 16 is characterized in that: described voice output is a waterproof.
29. hands-free personal communication device according to claim 16 is characterized in that: described microphone is a waterproof.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53531404P | 2004-01-09 | 2004-01-09 | |
| US60/535,314 | 2004-01-09 | ||
| US11/029,911 US7428429B2 (en) | 2002-08-14 | 2005-01-05 | Hands-free personal communication device |
| US11/029,911 | 2005-01-05 | ||
| PCT/US2005/000297 WO2005071929A1 (en) | 2004-01-09 | 2005-01-06 | Hands-free personal communication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1930857A CN1930857A (en) | 2007-03-14 |
| CN1930857B true CN1930857B (en) | 2010-05-05 |
Family
ID=37859616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800078927A Expired - Fee Related CN1930857B (en) | 2004-01-09 | 2005-01-06 | Hands-free personal communication device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1930857B (en) |
| IL (1) | IL176756A0 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8818013B2 (en) * | 2011-11-17 | 2014-08-26 | Plastoform Industries Limited | Wearable speaker system with satellite speakers and a passive radiator |
| KR102343269B1 (en) * | 2014-08-28 | 2021-12-27 | 삼성전자주식회사 | Wearable Electronic Device |
| EP3015975A1 (en) * | 2014-10-30 | 2016-05-04 | Speech Processing Solutions GmbH | Steering device for a dictation machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5457751A (en) * | 1992-01-15 | 1995-10-10 | Such; Ronald W. | Ergonomic headset |
| CN1129511A (en) * | 1994-06-08 | 1996-08-21 | 北方电讯有限公司 | A personal hands free communications device |
| US6018585A (en) * | 1996-01-24 | 2000-01-25 | Kabushiki Kaisha Audio-Technica | Waterproof microphone |
| EP1223682A1 (en) * | 2000-12-22 | 2002-07-17 | Telefonaktiebolaget L M Ericsson (Publ) | An electronic device for a mobile radio station |
| US20020173346A1 (en) * | 2001-05-18 | 2002-11-21 | Chin-Yang Wang | Neck Phone |
| US6519345B1 (en) * | 2000-08-14 | 2003-02-11 | Chin-Hui Yang | Double-functioned hand-free device for cellular telephone |
-
2005
- 2005-01-06 CN CN2005800078927A patent/CN1930857B/en not_active Expired - Fee Related
-
2006
- 2006-07-09 IL IL176756A patent/IL176756A0/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5457751A (en) * | 1992-01-15 | 1995-10-10 | Such; Ronald W. | Ergonomic headset |
| CN1129511A (en) * | 1994-06-08 | 1996-08-21 | 北方电讯有限公司 | A personal hands free communications device |
| US6018585A (en) * | 1996-01-24 | 2000-01-25 | Kabushiki Kaisha Audio-Technica | Waterproof microphone |
| US6519345B1 (en) * | 2000-08-14 | 2003-02-11 | Chin-Hui Yang | Double-functioned hand-free device for cellular telephone |
| EP1223682A1 (en) * | 2000-12-22 | 2002-07-17 | Telefonaktiebolaget L M Ericsson (Publ) | An electronic device for a mobile radio station |
| US20020173346A1 (en) * | 2001-05-18 | 2002-11-21 | Chin-Yang Wang | Neck Phone |
Non-Patent Citations (1)
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Also Published As
| Publication number | Publication date |
|---|---|
| IL176756A0 (en) | 2006-10-31 |
| CN1930857A (en) | 2007-03-14 |
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Granted publication date: 20100505 Termination date: 20110106 |