GB2347042A - Earphone - microphone set with ear mounting hook - Google Patents
Earphone - microphone set with ear mounting hook Download PDFInfo
- Publication number
- GB2347042A GB2347042A GB9903520A GB9903520A GB2347042A GB 2347042 A GB2347042 A GB 2347042A GB 9903520 A GB9903520 A GB 9903520A GB 9903520 A GB9903520 A GB 9903520A GB 2347042 A GB2347042 A GB 2347042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- microphone
- speaker
- hook
- outrigger
- signal
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- H04R1/1058—Manufacture or assembly
- H04R1/1066—Constructional aspects of the interconnection between earpiece and earpiece support
-
- 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
-
- 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
- H04R1/1016—Earpieces of the intra-aural type
-
- 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
- H04R1/105—Earpiece supports, e.g. ear hooks
-
- 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
Abstract
An earphone-microphone set has a hook 20 for mounting the set on a users ear, a speaker in chamber 40 connected to one end of the hook by outrigger 30 and a microphone in chamber 54 connected to the other end of the hook by boom 52. The outrigger is adjustable to allow the speaker to be firmly fixed by the users exterior acoustic meatus and the boom is flexible to allow fixing of the microphone near the users mouth. Signal wires for the microphone through the boom and those for the speaker pass through the outrigger and hook, before both are taken off to couple to an audio signal manager. The invention could be used with fixed or mobile phones, two way radios and similar communication means.
Description
ADJUSTABLE EARPHONE WITH A MICROPHONE
BACKGROUND OF THE INVENTION
Field of Invention
The present invention relates to an earphone. More particularly, the present invention relates to an adjustable earphone with a microphone.
Description of Related Art
People enjoy personal audio systems because users can listen to the radio, a tape, or a CD, without disturbing others and while simultaneously engaging in other activities.
A personal audio system includes an earphone that is worn on the user's ear. Thus, only the user can hear the sound produced by the personal audio system and others are not disturbed. The earphone also provides better sound transmission, which allows the user to hear the sound more clearly than if the sound were mediated by the air. In addition, the sound transmitted by the earphone is not disturbed while the user is moving, exercising, or in a noisy environment. This type of earphone is also used in communication systems, such as educational, telephone or radio-communication systems. When the earphone is used in a communication system, a microphone is usually mounted on the earphone and extends to a location near the user's mouth.
With such a system, the user can communicate with his or her hands free.
Fig. 1 illustrates a conventional earphone with a microphone. The earphone usually includes a speaker 10 and a microphone 12. The speaker 10 is so small that it can be fixed on the user's exterior acoustic meatus. The microphone 12 includes a clip 14 that allows the user to affix the microphone 14 in the location near the user's mouth, e. g., on the collar.
However, the convenience and the comfort for the user while wearing an earphone are very important. The speaker of the conventional earphone which tends to fall out of the ear causes discomfort when it is worn. In addition, the microphone needs to be clipped to something, but it is not always easy for the user to find a place to clip the microphone to. Thus the microphone may be attached at a distance from the user's mouth, so that the communication system is disturbed and noises are produced.
An earphone that can be comfortably worn by a user and can be firmly fixed on the user's ear while the user is exercising is disclosed in U. S. patent No. 5412736. An earphone with a microphone is disclosed in Taiwan application No. 87111485 based on
U. S. patent No. 5412736, wherein both the signal-wire coupling to the microphone and the signal-wire coupling to the speaker pass through a slot in the hook of the earphone.
After passing through the slot, one of the signal-wires couples to the speaker, and the other signal-wire couples to the microphone through a boom. It is difficult to fabricate, assemble, and use the earphone. In addition, if the user feels tired, due to extended wear of the earphone on one ear, and tries to move the earphone from one ear to another ear, e. g. from his right ear to his left ear, many steps are needed. These steps include: taking off the earphone, turning the speaker chamber, turning the boom which supports the microphone, adjusting the speaker chamber so that the speaker chamber can be affixed on the exterior acoustic meatus, etc.
SUMMARY OF THE INVENTION
The present invention provides an earphone with a microphone. The earphone includes a hook, a speaker, and a microphone. The speaker is in a speaker chamber and the microphone is in a microphone chamber, wherein the speaker chamber and the microphone chamber respectively protect the speaker and the microphone. The hook comprises a speaker end connecting to the speaker and a microphone end connecting to the microphone. When the earphone is worn on a user's ear, the hook extends along the user's helix, wherein the speaker end of the hook is near the upper side of the helix, and the microphone end of the hook is near the user's earlobe. The speaker of the earphone connects to the speaker end of the hook by an outrigger, and the microphone connects to the hook by a boom. The speaker signal-wire extends from the speaker and then passes through the outrigger, the speaker end of the hook, the slot in the hook and then couples to the audio signal manager. The microphone signal-wire extends from the microphone, passes through the boom and then couples to the audio signal manager.
Both the microphone signal-wire and the speaker signal-wire can be protected well in the invention. Additionally, fabrication of the earphone according to the invention is much easier.
It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the invention as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings,
Fig. 1 shows a schematic, front view of a conventional earphone with a microphone;
Fig. 2 shows a schematic, front view of the earphone with a microphone according to a preferred embodiment of the present invention; Fig. 3 shows a schematic, cross-sectional view of the earphone with a microphone as illustrated in Fig. 2;
Fig. 4 shows a schematic, side view of the embodiment of the earphone with a microphone while being worn by a user; and
Fig. 5 shows a schematic view from the rear side of the head of a user while the earphone with a microphone according to a preferred embodiment of the invention is worn by a user.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.
Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
Fig. 2 shows a front view of the earphone with a microphone according to a preferred embodiment of the present invention, and Fig. 3 shows a cross-sectional view of the earphone with a microphone in Fig. 2. As shown in Fig. 2 and in Fig. 3, the hook 20 is an apparatus that can be comfortably and firmly worn on a user's ear by extending and clipping along the user's ear. One end 24 of the hook 20 connects to the housing 22. An outrigger 30 passes through the housing 22 and connects to the speaker chamber 40. The speaker 42 is in the speaker chamber 40.
The user can slide the outrigger 30 upwardly or downwardly in the tunnel 23 of the housing 22 along the tunnel 23 along the direction of the arrowhead I. The user can also turn the outrigger 30 in the tunnel 23 of the housing 22 along the direction of the arrowhead II. While the force exerting on the outrigger 30 vanishes, the outrigger 30 will stay firmly because of the friction. Thus the direction and location of the speaker chamber 40 can be adjusted according to the user so that the speaker chamber 40 can be comfortably fixed on the user's exterior acoustic meatus. There are bulges 33 on both ends of the outrigger 30 ; the bulges 33 are at two ends of the outrigger 30.
The bulges 33 prevent the outrigger 30 from slipping away from the housing 22.
Fig. 3 shows a cross-sectional view of the earphone with a microphone as illustrated in Fig. 2. As seen in Fig. 3, the outrigger 30 and the boom 52 are both hollow tubes. The hook 20 also includes a hollow passage therein. The signal-wire 62 extend from the speaker 42 and then extend into the bore 31 of the outrigger 30.
After the signal-wire 62 passes through the outrigger 30, the signal-wire 62 form a loop 63 before entering the hook 20. The signal-wire 62 extend to one end 26 of the hook 20 after passing through the hook 20, and then the signal-wire 62 passes into the tribores housing 50. The loop 63 is a looser and less tensile part of the signal-wire 62, and the loop 63 exists to let the outrigger 30 move easily in the housing 22. The signal-wire 62 passes into the bore 48 of the tri-bore housing 50 after extending from the end 26 of the hook 20. The signal-wire 64 extends from the microphone 56 and passes into the bore 53 of the boom 52. The signal-wire 64 then passes into the bore 49 of the tri-bore housing 50 and extends from the bore 47. Finally, the signal-wire 64 couples to the audio signal manager. Referring to Fig. 3 and Fig. 4, signal-wire 62 and signal-wire 64 are usually combined into one wire 60. The wire 60 extends from the bore 47 of the tri-bore housing 50 and then connects to the end point for coupling to the audio signal manager 80. The audio signal manager 80 can be a communication means, e. g. mobile phone, wireless, multi-media, or radio intercom.
Referring to Fig. 2 and Fig. 3, one end of the boom 52 connects to the tri-bore housing 50, and the other end of the boom 52 connects to the microphone chamber 54.
The boom 52 is a delicate and waterproof hollow tube used for covering and holding the microphone signal-wire 64. Additionally, the microphone is made from materials having high ductility because the boom 52 should be able to be bent easily by the user, and the boom 52 should maintain its configuration after being bent by the user. Thus the user can adjust the location of the microphone chamber 54 according to the location of the user's mouth when wearing the earphone with microphone of the invention.
If two earphones are used simultaneously, the signal-wire 60 can be plugged into a Y-type connector so that the signal from the audio signal manager can be transmitted to both of the earphones. If needed, a volume controller and a switch can also be installed on the signal-wire 60 for the user to control the On/Off State and the volume easily.
Fig. 4 shows a side view of the embodiment of the earphone with a microphone while being worn by a user, and Fig. 5 shows a view from the rear side of the head of a user wherein the earphone with a microphone is worn on the user's ear. Referring to
Fig. 4 and Fig. 5, the hook 20 extends from a location near the earlobe 86 to a location near the upper side of the helix 88. The hook 20 is designed according to the shape of the ear and thus it is comfortable for the user to wear the earphone on his or her ear.
One end 26 of the hook 20 is at the rear side of the ear near the earlobe 86, and the other end 24 of the hook 20 connects to a housing 22 on the upper side of the helix 88. Thus the hook 20 cannot easily fall from the ear. Additionally, after wearing the earphone according to embodiment of the invention, the user can adjust the outrigger 30 that connects to the speaker chamber 40 and the hook 20 enable the speaker chamber to be located in a more comfortable position. The hook 20 and the outrigger 30 also keep the speaker 42 and the speaker chamber 40 on the exterior acoustic meatus even when the user is engaged in vigorous physical activity.
Generally, high quality speakers always have a metal buffer cap. But when the user is engaged in vigorous physical activities, the sweat and the humidity still erode the earphone. To resolve this problem, the speaker of the invention has a waterproof material covering the the metal buffer cap. The waterproof material can be made from latex. The waterproof material is interleaved between the metal buffer cap and a scaleproof meshes, and than sealed by an elastic seal.
Some people need their hands free and have to pay attention to the surroundings while working, thus the earphone with a microphone according to their invention is very important. Sometimes they may feel tired after wearing the earphone on the same ear for a long time and try to move the earphone from one ear to another ear. At such a time, the user just needs to take off the earphone and turn the speaker chamber 40 about 180 , after which then the earphone can be wom on the other ear. While the user engages in vigorous physical activity, the housing prevents the outrigger 30 from turning or moving due to friction, and thus the speaker chamber40 does not turn nor move. As a result, the user still feels comfortable even during vigorous activity.
It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention shield modifications and variations of this invention provided they fall within the scope of the following claims and their equivalents.
Claims (5)
- WHAT IS CLAIMED IS: 1. An adjustable earphone with a microphone comprises: a hook, used for mounting on a user's ear along a rearward side of an ear of the user, wherein the hook comprises a microphone end and a speaker end; a speaker, used for mounting on a exterior acoustic meatus of the ear of the user; a microphone; an outrigger, whereby the speaker couples to the speaker end of the hook; a boom, whereby the microphone couples to the microphone end of the hook ; a speaker signal-wire coupling to the speaker; and a microphone signal-wire coupling to the microphone.
- 2. The adjustable earphone with a microphone according to claim 1, wherein the speaker signal-wire passes through the hook, the speaker end of the hook, and the outrigger, and the microphone signal-wire passes through the boom.
- 3. The adjustable earphone with a microphone according to claim 1, further comprising a tri-bore housing installed between the microphone end of the hook and the boom, wherein the speaker signal-wire passes into a speaker-connecting bore of the tribore housing, the microphone signal-wire passes into a microphone-connecting bore of the tri-bore housing, and both the speaker signal-wire and the microphone signal-wire extend from the main bore of the tri-bore housing.
- 4. The adjustable earphone with a microphone according to claim 1, the hook further comprising a housing, wherein the outrigger is installed and held in the housing, so that the outrigger can be moved and turned in the housing for adjusting the speaker chamber and keeping the speaker on the exterior acoustic meatus of the user.
- 5. The adjustable earphone with a microphone according to claim 1, wherein the boom is a hollow tube and is made from materials having high ductility.5. The adjustable earphone with a microphone according to claim 1, the outrigger further comprising a bulge on the outrigger for preventing the outrigger from sliding away from the housing.6. The adjustable earphone with a microphone according to claim 1, further comprising a speaker chamber and microphone chamber used for covering the speaker and the microphone, respectively.7. The adjustable earphone with a microphone according to claim 1, wherein the boom is a hollow tube and is made from materials having high ductility.Amendments to the claims have been filed as follows Claims1. An adjustable earphone with a microphone comprises: a hook for mounting on a user's ear along a rearward side of an ear of the user, wherein the hook comprises a microphone end and a speaker end; a speaker for mounting on an exterior acoustic meatus of the ear of the user; a microphone; an outrigger carrying the speaker; a first housing mounted to the hook at the speaker end and arranged slidably to receive the outrigger so that the outrigger is displaceable and rotatable relative to the housing for adusting the position of the speaker; a boom carrying the microphone; a speaker signal-wire coupling to the speaker; a microphone signal-wire coupling to the microphone; and a second housing installed between the boom and the microphone end of the hook, wherein the speaker signal-wire passes into a speaker-connecting bore of the second housing, the microphone signal-wire passes into a microphone-connecting bore of the second housing, and both the speaker signal-wire and the microphone signal-wire extend from a further bore of the second housing.2. The adjustable earphone with a microphone according to claim 1, wherein the speaker signal-wire passes through the hook, the speaker end of the hook, and the outrigger, and the microphone signal-wire passes through the boom.3. The adjustable earphone with a microphone according to claim 1, the outrigger further comprising at least one bulge projecting therefrom for preventing the outrigger from sliding from the housing.4. The adjustable earphone with a microphone according to claim 1, further comprising a speaker chamber and microphone chamber used for covering the speaker and the microphone, respectively.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9903520A GB2347042B (en) | 1999-02-16 | 1999-02-16 | Adjustable earphone with a microphone |
CA002262371A CA2262371C (en) | 1999-02-16 | 1999-02-22 | Adjustable earphone with a microphone |
NL1011488A NL1011488C2 (en) | 1999-02-16 | 1999-03-08 | Headphone-microphone combination. |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9903520A GB2347042B (en) | 1999-02-16 | 1999-02-16 | Adjustable earphone with a microphone |
CA002262371A CA2262371C (en) | 1999-02-16 | 1999-02-22 | Adjustable earphone with a microphone |
NL1011488A NL1011488C2 (en) | 1999-02-16 | 1999-03-08 | Headphone-microphone combination. |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9903520D0 GB9903520D0 (en) | 1999-04-07 |
GB2347042A true GB2347042A (en) | 2000-08-23 |
GB2347042B GB2347042B (en) | 2001-04-18 |
Family
ID=33032764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9903520A Expired - Fee Related GB2347042B (en) | 1999-02-16 | 1999-02-16 | Adjustable earphone with a microphone |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA2262371C (en) |
GB (1) | GB2347042B (en) |
NL (1) | NL1011488C2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2373125A (en) * | 2000-12-11 | 2002-09-11 | Toong In Electronic Corp | Collapsable earphone and microphone combination |
WO2003069951A1 (en) * | 2002-02-13 | 2003-08-21 | Plantronics, Inc. | Ear clasp headset |
EP1699212A1 (en) * | 2005-03-04 | 2006-09-06 | Sennheiser Communications A/S | Configurable headset |
DK200601332A (en) * | 2006-10-13 | 2008-04-14 | Gn Netcom As | Headset with adjustable ear hook |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113825062A (en) * | 2021-11-10 | 2021-12-21 | 苏州登堡电子科技有限公司 | Twist reverse clamping structure and behind wear formula bone conduction earphone equipment |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138649A (en) * | 1980-06-24 | 1984-10-24 | Plantronics | Miniaturized Headset for Two-Way Voice Communication |
GB2210534A (en) * | 1987-09-30 | 1989-06-07 | Gn Netcom As | Headset having a post auricle mount and arranged to be worn on a person's outer ear |
WO1997027721A1 (en) * | 1996-01-26 | 1997-07-31 | Veijo Sakari Makkonen | Headset and method for a headset |
US5687231A (en) * | 1991-10-31 | 1997-11-11 | Acs Wireless, Inc. | Articulated headset |
US5708724A (en) * | 1993-07-30 | 1998-01-13 | Acs Wireless, Inc. | Communications headset having a detachable receiver capsule and cable pivot |
US5761298A (en) * | 1996-05-31 | 1998-06-02 | Plantronics, Inc. | Communications headset with universally adaptable receiver and voice transmitter |
-
1999
- 1999-02-16 GB GB9903520A patent/GB2347042B/en not_active Expired - Fee Related
- 1999-02-22 CA CA002262371A patent/CA2262371C/en not_active Expired - Fee Related
- 1999-03-08 NL NL1011488A patent/NL1011488C2/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138649A (en) * | 1980-06-24 | 1984-10-24 | Plantronics | Miniaturized Headset for Two-Way Voice Communication |
GB2210534A (en) * | 1987-09-30 | 1989-06-07 | Gn Netcom As | Headset having a post auricle mount and arranged to be worn on a person's outer ear |
US5687231A (en) * | 1991-10-31 | 1997-11-11 | Acs Wireless, Inc. | Articulated headset |
US5708724A (en) * | 1993-07-30 | 1998-01-13 | Acs Wireless, Inc. | Communications headset having a detachable receiver capsule and cable pivot |
WO1997027721A1 (en) * | 1996-01-26 | 1997-07-31 | Veijo Sakari Makkonen | Headset and method for a headset |
US5761298A (en) * | 1996-05-31 | 1998-06-02 | Plantronics, Inc. | Communications headset with universally adaptable receiver and voice transmitter |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2373125A (en) * | 2000-12-11 | 2002-09-11 | Toong In Electronic Corp | Collapsable earphone and microphone combination |
WO2003069951A1 (en) * | 2002-02-13 | 2003-08-21 | Plantronics, Inc. | Ear clasp headset |
GB2400519A (en) * | 2002-02-13 | 2004-10-13 | Plantronics | Ear clasp headset |
GB2400519B (en) * | 2002-02-13 | 2005-04-27 | Plantronics | Ear clasp headset |
US7123737B2 (en) | 2002-02-13 | 2006-10-17 | Plantronics, Inc. | Ear clasp headset |
DE10392274B4 (en) * | 2002-02-13 | 2008-06-26 | Plantronics, Inc., Santa Cruz | Earpiece to be clamped on the ear |
EP1699212A1 (en) * | 2005-03-04 | 2006-09-06 | Sennheiser Communications A/S | Configurable headset |
US7613315B2 (en) | 2005-03-04 | 2009-11-03 | Sennheiser Communications A/S | Configurable headset |
DK200601332A (en) * | 2006-10-13 | 2008-04-14 | Gn Netcom As | Headset with adjustable ear hook |
WO2008043359A1 (en) * | 2006-10-13 | 2008-04-17 | Gn A/S | Headset with adjustable earhook |
Also Published As
Publication number | Publication date |
---|---|
NL1011488A1 (en) | 2000-09-14 |
GB9903520D0 (en) | 1999-04-07 |
CA2262371C (en) | 2002-08-06 |
GB2347042B (en) | 2001-04-18 |
CA2262371A1 (en) | 2000-08-22 |
NL1011488C2 (en) | 2000-10-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20040216 |