GB2367203A - Audio headset with acoustic pipe link - Google Patents
Audio headset with acoustic pipe link Download PDFInfo
- Publication number
- GB2367203A GB2367203A GB0110824A GB0110824A GB2367203A GB 2367203 A GB2367203 A GB 2367203A GB 0110824 A GB0110824 A GB 0110824A GB 0110824 A GB0110824 A GB 0110824A GB 2367203 A GB2367203 A GB 2367203A
- Authority
- GB
- United Kingdom
- Prior art keywords
- loudspeaker
- computer
- microphone
- headset
- mobile telephone
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
- H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
-
- 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
- H04M1/6066—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone including a wireless connection
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Set Structure (AREA)
Abstract
An apparatus in the form of an audio headset for use with, for example mobile telephones, computers, hand-held computers, Personal Digital Assistants (PDAs) or the like in which the loudspeaker and the microphone are contained within an enclosure and the communications link between the loudspeaker of said headset and the earpiece of said headset is a non-metallic acoustic conduit, for example a silicon rubber tube. By forming the communications link from a non-metallic material which cannot act as a conduit for microwave radiation the microwave radiation generated by the said telephone and incident at the user's head is significantly reduced compared to an audio head-set whereby the communication link to the said earpiece is made from electrical wires.
Description
2367203 Reduced Radiation Audio Headset This invention relates to an audio
headset which can be used with, for example, mobile telephones, computers, hand-held computers, Personal Digital Assistants (PDAs) and the like.
An example of an existing headset for example as used with a mobile telephone, is shown in Figure 1. Said headset commonly comprises an earpiece I and a microphone 2 connected to an existing mobile telephone 15 via an electrical cable 3 and a plug 4. The cable 3 may be clipped to the clothing of the user with the clip 5. In normal use the earpiece I is placed in the user's ear. It has been shown that such cables act as a conduit for microwave energy, conducting said energy from the mobile telephone directly to the user's head. It has been reported that use of conventional headsets increase the level of microwave radiation incident at the head of the user by a factor of three compared with using the telephone itself adjacent to the ear. (Which April 2000, p. 15, Consumer's Association). The effects upon the user of microwave radiation at the levels commonly found to be emitted from mobile telephones are not fully understood, but there is evidence to suggest a link between said radiation and ill effects in the users of mobile telephones. It is evident that mobile telephone users are concerned about the possible harmful effects of said microwave radiation and a device that reduced the incidence of said microwave radiation upon the user's head would be welcomed.
The clock frequencies of computers intended for personal use are increasing annually with clock frequencies of 1.2GHz (I GHz = I x 109 Hertz) currently available. It is considered to be only a matter of time before the clock frequencies of such apparatus reach that of mobile telephones (e.g- 1. 8GHz) or that of microwave ovens (2.45 GHz) at such a time the hazards that are currently suspected of being associated with mobile telephones may also become suspected of being associated with said computers.
Standardized personal area network (PAN) technologies such as BluetoothTm utilize 2.45GHz spread spectrum radio to provide connectivity over distances of typically I to I Om. Such networks are currently used to provide audio to headsets for example in hands-free kits for mobile telephones phones. The use of the 2.45GHz frequency band may give user's cause for concern about the possible harmful effects of said microwave radiation.
A mobile telephone as disclosed in patent GB2340691 A is an invention comprising a handset, containing an earpiece and microphone, and another unit containing a transmitter. Said invention enables the transmitter to be located a suitable distance from the user while the telephone is in use and several techniques, which did not involve the use of microwave radiation, were described for exchanging speech and control signals between the two units. This resulted in the microwave radiation incident upon the user's head being reduced compared to a mobile telephone operated adjacent to the user's ear or a mobile telephone operated with a conventional (electrically connected) headset.
A major deficiency of the invention described in patent GB2340691 A is that the earpiece and microphone were incorporated into a handset and as such required the use of the user's hand to operate the telephone. Such a requirement impedes the use of the telephone in a moving vehicle or in any other situation where the user would preferentially have both hands free of the telephone.
The first object of the present invention is to provide an apparatus that is in essence a headset for use with mobile telephones, computers, handheld computers, Personal Digital Assistants (PDAs) or the like in which the loudspeaker and the microphone are contained within an enclosure and the communications link between the loudspeaker of said headset and the earpiece of said headset is an acoustic conduit, for example a silicon rubber tube.
The second object of the present invention is to provide a headset for use with a mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like whereby the microwave radiation generated by the said mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like and incident at the user's head is reduced significantly compared to a headset whereby the communication channel between the earpiece of the headset and the said mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like is entirely an electrical wire or wires.
According to the first aspect of the present invention there is provided an apparatus in the form of a headset for use with a mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like, in which the loudspeaker and the microphone are contained within an enclosure and the communications link between the earpiece of said headset and the mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like is an acoustic conduit for example a silicon rubber tube.
According to the second aspect of the present invention there is provided an apparatus in the forni of a headset for use with a mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like, which can perfort-ri its function with the terminal or terminals of any or all electrical wire or wires connected to the mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like separated from the user's head by a distance typically in excess of, though it may be less than, 30cm.
According to the third aspect of the present invention there is provided an apparatus in the fonn of a headset for use with a mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like in which the communications link between the said mobile telephone, computer, hand-held computer, Personal Digital Assistant or the like and the speaker and microphone of the headset is in the form of, for example but not limited to, an electrical wire or wires, an infra-red link, a radio link, a Bluetooth Tm radio link, an inductive-loop link, a fibre-optic link or an ultrasonic link.
Figure 1 is a perspective view of an existing example of a headset.
Figure 2 is a schematic diagram of the first embodiment of the present invention.
Figure 3 shows the enclosure containing the microphone and loudspeaker and the clip detail.
Figure 4 is a schematic diagram of the second embodiment of the present invention.
Figure 5 is a schematic diagram of the third embodiment of the present invention with a cut away to show enclosed microphone and loudspeaker.
Figure 6 is a schematic diagram of the fourth embodiment of the present invention with a cut away to show enclosed microphone and loudspeaker and tube section detail.
The first preferred embodiment of the present invention will be described by way of a non-restrictive example with reference to Figures 2 and 3. Enclosure 6 contains loudspeaker 8 electrically connected to electrical cable 12 via electrical Wires 16 and 17 and microphone 7 electrically connected to electrical cable 12 via electrical wires 18 and 19. Loudspeaker 8 is mechanically connected to tube 9 via hollow cone 14 and thence to silicon-rubber or the like tube 10- Tube 10 terminates at earpiece 11, a hollow construction of moulded plastic or the like. The arrangement of components 8, 14, 9,10 and I I is such that any sound generated by loudspeaker 8 will be conducted to the aperture in the earplece I I via components 14, 9 and 10. The user's voice is collected by microphone 7 and conveyed as an electrical signal to the mobile telephone via electrical wires 18 and 19 and electrical cable 12. Electrical cable 12 is connected to existing mobile telephone 15 via connector 13. Enclosure 6 may be attached to the clothing of the user by removable clip 20 (not shown on Figure 2) or alternatively suspended from earpiece I I by the acoustic conduit, for example silicon-rubber tube, 10.
The second preferred embodiment of the present invention will be described by way of a non-restrictive example with reference to Figure 4. Enclosure 6 contains microphone 7, electrically connected to transmit/receive unit 25, for example utilizing the BluetoothTM protocol, via electrical wires 18 and 19. Loudspeaker 8 is mechanically connected to pipe 9 via hollow cone 14 and thence to silicon-rubber or the like tube 10. Tube 10 terminates at earplece 11, a hollow construction of moulded plastic or the like. The arrangement of components 8, 14, 9,10 and 11 is such that any sound generated by loudspeaker 8 will be conducted to the aperture in the earplece I I via components 14, 9 and 10. The user's voice is collected by microphone 7 and conveyed as an electrical signal to transmit/receive unit 25, for example utilizing the Bluetooth protocol, via electrical wires 18 and 19.
The transmit/receive unit 25, for example utilizing the BlUetoothTM protocol, communicates with the mobile telephone 15 via transmit/receive unit 24, for example utilizing the Bluetooth protocol attached to the electrical connector on the telephone 15. The combined transmit/receive unit 25, for example utilizing the BluetoothTm protocol coverts the electrical analogue of the received sound present on wires 18 and 19 into a suitably modulated signal. Said signal is transmitted over path 26 and received by a suitable receiver circuit in transmit/receive unit 24, for example utilizing the Bluetooth protocol and converted into an electrical analogue of the audio signal suitable for reception by the telephone 15. The demodulated audio signal received by the telephone 15 is fed to transmit/receive unit 24, for example utilizing the Bluetooth protocol, converted into a suitably modulated signal and transmitted from transmit/receive unit 24, for example utilizing the Bluetooth protocol. Said signal is received by transmit/receive unit 25, for example utilizing the Bluetooth protocol and converted into an electrical analogue of the audio signal and fed to loudspeaker 8 via wires 16 & 17. Enclosure 6 may be attached to the clothing of the user by removable clip 20 (not shown on Figure 4).
The third preferred embodiment of the present invention will be described by way of a non-restrictive example with reference to Figure 5. Enclosure 6 contains loudspeaker 8 and microphone 7. Enclosure 6 is located with the mobile phone 15. Loudspeaker 8 is mechanically connected to pipe 9 via hollow cone 14 and then to silicon-rubber or the like tube 10. Tube 10 terminates at earpiece 11, a hollow construction of moulded plastic or the like. The arrangement of components 8, 14, 9,10 and 11 is such that any sound generated by loudspeaker 8 will be conducted to the aperture in the earpiece I I via components 14, 9 and 10. The user's voice is collected by microphone 7 via aperture 27 in the body of mobile phone 15.
The fourth preferred embodiment of the present invention will be described by way of a non-restrictive example with reference to Figure 6. Enclosure 6 contains loudspeaker 8 and microphone 7. Enclosure 6 is located with the mobile phone 15. Loudspeaker 8 is mechanically connected to pipe 9 via hollow cone 14 and then to silicon-rubber or the like tube 10. Tube 10 terminates at earpiece 11, a hollow construction of moulded plastic or the like. The arrangement of components 8, 14, 9,10 and I I is such that any sound generated by loudspeaker 8 will be conducted to the aperture in the earplece 11 via components 14, 9 and 10. Microphone 7 is mechanically connected to pipe 29 via hollow cone 28 and then to silicon- rubber or the like tube 30. The termination of the tube 30 is such that it is approximately 3 Ocms from the earpiece 11. The open aperture 3 1 of tube 30 collects the user's voice and conveys itvia components 30,29 and 28 to microphone 7. Pipes 9 and 29 can be removed cones 14 and 28 respectively, allowing the tubes to be disconnected when the headset is not required and thereby allowing the mobile phone 15 to function as a conventional phone without the headset.
Obviously, many modifications and variations of the present invention are possible now that the present invention has been disclosed. Therefore, it is to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described above.
BluetoothTM is a trademark of Telefonaktiebolaget LM Ericsson Sweden.
Claims (14)
1. An apparatus in the form of a headset for use with a mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like in which the loudspeaker and the microphone are contained within an enclosure and the communications link between the loudspeaker of said headset and the earpiece of said headset is an acoustic conduit for example a silicon rubber tube.
2. An apparatus according to Claim 1, which can perform its function with the terminal or terminals of any or all electrical wire or wires that form part of the headset are separated from the user's head by a distance typically in excess of, though it may be less than, 30cm.
3. An apparatus according to Claim I whereby the sound generated by the loudspeaker is coupled into the acoustic pipe by a hollow cone.
4. An apparatus according to Claims 1,2 and 3 in which the communications link between the user and the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like comprises in part a loudspeaker contained within an enclosure and connected to the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like via an electrical cable comprising at least one electrical wire.
5. An apparatus according to Claims 1,2 and 3 in which the communications link between the user and the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like comprises in part a microphone contained within an enclosure and connected to the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like via an electrical cable comprising at least one electrical wire.
6. An apparatus according to Claims 1,2 and 3 in which the communications link between the loudspeaker and microphone of the headset, contained within their enclosure, and the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like is a radio link.
7. An apparatus according to Claims 1,2 and 3 in which the communications link between the loudspeaker and microphone of the headset, contained within their enclosure, and the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like is an infra-red link.
8. An apparatus according to Claims 1,2 and 3 in which the communications link between the loudspeaker and microphone of the headset, contained within their enclosure, and the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like is a radio link employing the BluetoothTm protocol.
G
9. An apparatus according to Claims 1,2 and 3 in which the communications link between the loudspeaker and microphone of the headset contained within their enclosure and the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like is an inductive- loop link.
10. An apparatus according to Claims 1,2 and 3 in which the communications link between the loudspeaker and microphone of the headset contained within their enclosure and the mobile telephone, computer, hand- held computer, Personal Digital Assistant (PDA) or the like is an ultrasonic link.
I I. An apparatus according to Claims 1, 2 and 3 in which the enclosure containing the loudspeaker and microphone can be attached to the clothing of the user by a clip or suspended from the ear of the user by the acoustic conduit.
12. An apparatus according to Claims 1, 2 and 3 in which the enclosure containing the loudspeaker and microphone is itself contained within the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like and the acoustic conduit used to convey sound from the loudspeaker to the earplece is attached to the cone via a suitable plug and socket.
13. An apparatus according to Claims 1, 2 and 3 in which the enclosure containing the loudspeaker and microphone is itself contained within the mobile telephone, computer, hand-held computer, Personal Digital Assistant (PDA) or the like and the acoustic conduit used to convey sound from the loudspeaker to the earpiece is attached to the cone channeling sound from the loudspeaker via a suitable plug and socket and the acoustic conduit used to convey to user's voice to the cone channeling sound to the microphone is attached to said cone via a suitable plug and socket.
14. Apparatus substantially as described herein with reference to Figures 2,3,4,5 and 6 of the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0011139A GB0011139D0 (en) | 2000-05-10 | 2000-05-10 | Reduced radiation hands-free attachment for mobile telephones |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0110824D0 GB0110824D0 (en) | 2001-06-27 |
| GB2367203A true GB2367203A (en) | 2002-03-27 |
Family
ID=9891227
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0011139A Ceased GB0011139D0 (en) | 2000-05-10 | 2000-05-10 | Reduced radiation hands-free attachment for mobile telephones |
| GB0110824A Withdrawn GB2367203A (en) | 2000-05-10 | 2001-05-03 | Audio headset with acoustic pipe link |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0011139A Ceased GB0011139D0 (en) | 2000-05-10 | 2000-05-10 | Reduced radiation hands-free attachment for mobile telephones |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU5494901A (en) |
| GB (2) | GB0011139D0 (en) |
| WO (1) | WO2001086828A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2385484A (en) * | 2002-02-15 | 2003-08-20 | Andreas Antoniou Simeou | Mobile phone hands-free earpiece attachment |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL135501A0 (en) * | 2000-04-06 | 2001-05-20 | Ingbir Ronen | A device to transfer sound between a phone hand-set and user to reduce exposure to radiation |
| IL137724A0 (en) * | 2000-08-07 | 2009-02-11 | Sygnet Technologies 2001 Ltd | An earphone for cellular phone |
| WO2002015533A2 (en) * | 2000-08-15 | 2002-02-21 | Yaron Hefetz | Radiation protection device |
| GR1003733B (en) * | 2000-10-31 | 2001-12-11 | Χρηστος Τριανταφυλλης Και Υιος Οε(Olympic Shoe Machinery) | Mechanical sound-collecting pipes adaptable to cellular telephones |
| WO2002047431A1 (en) * | 2000-12-04 | 2002-06-13 | Changsu Bae | Earphone system for mobile phone |
| GB0030464D0 (en) * | 2000-12-14 | 2001-01-24 | Biotronics Ltd | Headset arrangement for communication device |
| IT1319751B1 (en) * | 2000-12-27 | 2003-11-03 | Sitec Italia S R L | HANDS-FREE SPEAKER FOR MOBILE PHONES |
| GB0100205D0 (en) * | 2001-01-05 | 2001-02-14 | Univ Warwick | Telephone headsets |
| GB0109684D0 (en) * | 2001-04-20 | 2001-06-13 | Henderson Paul V | Earpiece |
| FR2892845A1 (en) * | 2005-10-28 | 2007-05-04 | Andre Greze | Radio communication device for e.g. guiding students during exercise, has high frequency transmitter, micro-receiver with antenna, and audio amplifier with sound power for actuating loudspeaker which generates acoustic vibrations |
| GB2461251A (en) * | 2008-05-20 | 2009-12-30 | Marcus Lewis | Wireless personal audio equipment in a hat or cap |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4090042A (en) * | 1975-03-24 | 1978-05-16 | Kayce, Inc. | Acoustical communications headset |
| WO1999034640A1 (en) * | 1997-12-24 | 1999-07-08 | Michael Barry Watson | Transducer assembly |
| EP1143628A2 (en) * | 2000-04-06 | 2001-10-10 | Silver Helm (Israel) Ltd. | Radiation-free cellular telephone system |
| WO2001078357A1 (en) * | 2000-04-06 | 2001-10-18 | Simon Sheldon | Hands-free attachment |
| WO2001082568A1 (en) * | 2000-04-25 | 2001-11-01 | Safetalk Limited | Sound-transmitting apparatus |
| GB2362057A (en) * | 2000-05-04 | 2001-11-07 | Martin Paul Davidson | Wire-less link accessory for mobile telephones |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5208867A (en) * | 1990-04-05 | 1993-05-04 | Intelex, Inc. | Voice transmission system and method for high ambient noise conditions |
| US5982764A (en) * | 1995-05-18 | 1999-11-09 | Aura Communications, Inc. | Time-multiplexed short-range magnetic communications |
| US5943627A (en) * | 1996-09-12 | 1999-08-24 | Kim; Seong-Soo | Mobile cellular phone |
| AUPO347996A0 (en) * | 1996-11-07 | 1996-12-05 | Aust-Indo Tech Pty Limited | Mobile phone accessory |
| GB2340691A (en) * | 1998-08-15 | 2000-02-23 | Univ Bristol | Mobile phone arrangement for limiting high frequency radiation exposure |
| DE20014065U1 (en) * | 2000-08-16 | 2000-10-12 | Hung, Chin-Shui, Taipeh/T'ai-pei | Earpiece set, resistant to electromagnetic waves, as part of a cell phone arrangement |
-
2000
- 2000-05-10 GB GB0011139A patent/GB0011139D0/en not_active Ceased
-
2001
- 2001-05-03 GB GB0110824A patent/GB2367203A/en not_active Withdrawn
- 2001-05-09 WO PCT/GB2001/002015 patent/WO2001086828A1/en active Application Filing
- 2001-05-09 AU AU54949/01A patent/AU5494901A/en not_active Abandoned
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4090042A (en) * | 1975-03-24 | 1978-05-16 | Kayce, Inc. | Acoustical communications headset |
| WO1999034640A1 (en) * | 1997-12-24 | 1999-07-08 | Michael Barry Watson | Transducer assembly |
| EP1143628A2 (en) * | 2000-04-06 | 2001-10-10 | Silver Helm (Israel) Ltd. | Radiation-free cellular telephone system |
| WO2001078357A1 (en) * | 2000-04-06 | 2001-10-18 | Simon Sheldon | Hands-free attachment |
| WO2001082568A1 (en) * | 2000-04-25 | 2001-11-01 | Safetalk Limited | Sound-transmitting apparatus |
| GB2362057A (en) * | 2000-05-04 | 2001-11-07 | Martin Paul Davidson | Wire-less link accessory for mobile telephones |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2385484A (en) * | 2002-02-15 | 2003-08-20 | Andreas Antoniou Simeou | Mobile phone hands-free earpiece attachment |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0011139D0 (en) | 2000-06-28 |
| WO2001086828A1 (en) | 2001-11-15 |
| AU5494901A (en) | 2001-11-20 |
| GB0110824D0 (en) | 2001-06-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |