CA2737268A1 - Safety mast for reducing dispersion of electromagnetic radiation to mobile device operator - Google Patents
Safety mast for reducing dispersion of electromagnetic radiation to mobile device operator Download PDFInfo
- Publication number
- CA2737268A1 CA2737268A1 CA2737268A CA2737268A CA2737268A1 CA 2737268 A1 CA2737268 A1 CA 2737268A1 CA 2737268 A CA2737268 A CA 2737268A CA 2737268 A CA2737268 A CA 2737268A CA 2737268 A1 CA2737268 A1 CA 2737268A1
- Authority
- CA
- Canada
- Prior art keywords
- mast
- transmitter
- safety
- cavity
- operator
- 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
- 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
Abstract
The safety mast and the double safety mast both distance the transmitter from its controls and operator thus reducing radiation to both. The transmitter must be separated from its controls prior to installation.
Description
THE SAFETY MAST
BACKGROUND OF THE INVENTION
1. Field of the Invention This invention relates to the safety of people useing cellular phones and other relative equipment by placeing the radio transmitter and it's antenna a distance away from the manual controls of the unit thus reduceino raiation emissions asspecilly to the hands and head while in use. And after use return the transmitter and it's antenna to original postion near it's controls so to be compack for convient transport.
BACKGROUND OF THE INVENTION
1. Field of the Invention This invention relates to the safety of people useing cellular phones and other relative equipment by placeing the radio transmitter and it's antenna a distance away from the manual controls of the unit thus reduceino raiation emissions asspecilly to the hands and head while in use. And after use return the transmitter and it's antenna to original postion near it's controls so to be compack for convient transport.
2. Prior Art Radio reception and transmittion was known for decades human have been fascinated with wireless comunication and it's convients to be able to send message over great distance with out wire . However it has only been in our recent past that human produced telephones small enough to fit in a packet, sustain long distance, and with internet capability. Walkey talkey , transsponder, cellular and other such communication devices:: eimit electromagnetic radiation. The huma that are in close approximation of these devices in some cases in close approximtiion of these devices in some cases humans may be expose to radiation for long amount of time for example some people can talk on a cellphone ten hours a day if not more.
Typically a highpercentge of this radiation travel thought the head of the human body even with accessories such as earphones sets are used even your smartphone is on speaker mode or voice dialing and the phone is not in=the same environment as the head your hands may be expose to high frequency electromagnetic radiation or waves. At this time thir is no indivduall comformartion on the negitive efects on cellular phone use how_ ever study on this subject are still being done. There is always a need for a method of reduceing the potential danger of these electronic devices.
SUMMARY OF THE INVENTION
This invention satisfies the above needs A novel SAFETY MAST
unit that would reduce the concentration of cellphones and other such devices radiation from frequency transmittion of the present invention uses amast to sperat the transmitter portion from the control of the cellular phone and other.s,uch devices or equipment.
All manually operated control would be put at a distance from
Typically a highpercentge of this radiation travel thought the head of the human body even with accessories such as earphones sets are used even your smartphone is on speaker mode or voice dialing and the phone is not in=the same environment as the head your hands may be expose to high frequency electromagnetic radiation or waves. At this time thir is no indivduall comformartion on the negitive efects on cellular phone use how_ ever study on this subject are still being done. There is always a need for a method of reduceing the potential danger of these electronic devices.
SUMMARY OF THE INVENTION
This invention satisfies the above needs A novel SAFETY MAST
unit that would reduce the concentration of cellphones and other such devices radiation from frequency transmittion of the present invention uses amast to sperat the transmitter portion from the control of the cellular phone and other.s,uch devices or equipment.
All manually operated control would be put at a distance from
3 its transmitter and antenna that would be place in the cavity of the mast . The mast is mounted on the back of the cellphone for example the portion that would be mounted on the phone is called the bracket , the mast is primarily comprise of motible section that telescope in to each other the cavity would usually be the top or the lastof the section narmely the safety mast section would be in a contracted position for convient transport- . Once the is fully extended thus reduceing radiation from its operater when the phone is uses, because the transmitter and its antenna will be away from operator. The transmitter can sell operat wihle the=mast:is in compack mode , however for better proection the operator must fully extend the mast.
Fiber optic and optic would be the basic way the transmitter and controls would communicat with each other ther are other ways if needed. Power supplie for transmitter usually would be a battery compartment in cavity however the transmitter have other source as well to receive power.
Fiber optic and optic would be the basic way the transmitter and controls would communicat with each other ther are other ways if needed. Power supplie for transmitter usually would be a battery compartment in cavity however the transmitter have other source as well to receive power.
4 DETAILED DESCRIPTION OF THE INVENTION
The present invention is directed to distance separation of transmitter of electromagnetic broadcast radiation from its oper-ator and manual con-r is of such equipment by use of multiple section that would extend the transmitter from its manual controls. This done by placeing the transmitter in one compartment and the controls in another compartment that would be .' separated by the sections that can telescope into each if needed for convience.
This first embodiment of the present invention can be characterized as a transmitter isolater. As showsn in FIG.1, this embodiment utilizes a sectional arrangement to accompiish this. Feferring to FIG. 1, there is shown an inventive radiation reduceing unit in asspecially reduceing this radiation cancentra-tion to the head and hands. This device comprises hand grip 1.
cavity 2. mast sections 4.transmitter 3. bracket 5. mounting points 6. light signal emtter and receiver at base of cavity 7 light signal emitter and receiver 8. antenna area 9.
FIG. 2 hand grip 1. cavity 2. mast 3. mounting point 4.
bracket 5. iight signal emitters and receiver system 6.light signal emitters and receiver system 7. connection jack for controls 8. FIG. 3 hand grip 1. mounting points 2. transmitter 3.
cavity 7. light emitter and receiver system at bottom of cavity 6 . connection jack for control 4. FIG. 4 hand grip 1. mounting points 2. cavity 3. mast 14. bracket 15. FIG. 5 hand grip 1.
front view of cellular phone mounted on safety mast. FIG. 6 side view of safety mast in retracted state ;mounted on back of cellular phone.
FIG. 14. shows cellular phone mounted on the mast unit fron view mast is now extended mode. hand grip 1. mast 2.
FIG. 15 shows side view of invention.wihle in extended mode hand grip 1. mast 2. bracket 3. cellphone 4. FIG. 7 the doubie safety mast is another invention. hand grip 1. mast sections 2.
the double mast base section that is now extended from its bracket 3. bracket 4. mounting points 5. fiber optics material 6 .shaft on wich the double mast is mounted on, - commondate lateral movement 7. cavity 8. control connection jack 9.
FIG. 8 shows side view of FIG. 7 in extended-mode FIG. 14 hand grip 1 antenna 19 transmitter 18 fiber optic lines mounting point 5 cellular phone coccection jack 21 reversible electric motor 17 cavity 77 mast 2 baacket 3 flexible shaft 4 spool 16 FIG. 15 hand grip 22 mast 23 flexible shaft 24 bracket 80 cellphone connection jack 26 mounting points 25 cellphone mounting area 50 FIG. 65 cellphone mounted on the preferred embodiment 67 FIG. 16 antenna 38 mast 39 transmit-ter 36 mounting point 30 bracket 27 fiber op.tic lines 28 notch area 34 cavity 35 spring for extending mast 37 mast 33 mast release button for the extending 31 lache 40 button return spring 32 connection jack to cellphone 29 FIG. 17 hand grip 41 cavity 42 bracket 43 area were cellphone would be mounted on invention 44 FIG, 188 hand grip 45 sectionan front view of cellular phone mounted on preferred invention.
FIG. 9 shows sectional front view of FIG. 7 FIG.9 hand grip 1.
bracket 2. cavity 3. mounting points 4. FIG. 10 shows sectional side view of the double safety mast invention in contracted mode of FIG. 7 FIG. 11 shows a side sectional view of the double safety mast mounted on the uper portion of-a two part cellular phone hand grip 1. double mast 2. mounting point 4.
mast base 3. FIG. 12 shows front sectional view of the double mast mounted on two part cellphonethand grip 1. mast 2. cell-ular phone 4. FIG. 13 shows a sectional view of the doubie mast in retracted mode side view . hand grip 1. bracket 2. cellular phone 3.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features,aspects and advantages of the present invention may be understood with reference to the' following drawing wherein;
FIG. 1 shows a sectional front view of a preferred embodim-ent of the invention;
FIG. 2 shows a side view of the preferred embodiment in', FIG.1 FIG. 3 shows sectional front view of preferred embodiment'ifny FIG. 1 FIG. 4 shows a side view of the preferred embodiment-fn.
FIG. `-1 FIG. 5 shows front view of subject unit with preferred embodiment atte.ct;Erd im.
FIG. 'l FIG. 6 show sectional side view of the subject unit with Freftrred embodiment in "FIG.-1 FIG. 7 shows sectional front view of another perferred embodiment on the invention;
FIG. 8 shows a side view of the preferred embodiment in FIG. 7 FIG. 9 shows a sectional front view of preferred embodiment of the present invention in FIG. 7 FIG. 10 shows a side view of the preferrfd embodiment in FIG. 7 FIG. 11 shows a sectionan side view of another preferred embodiment of the invention;
FIG. 12 shows a section front view of the preferred embodi-ment on the invention attached to subject'unit or cellular phone in FIG. 11 FIG. 13 shows a side view of the preferred embodimend of the ivention in FIG. 13 FIG, 14 shows a sectional front view another preferred embodiment on this invention FIG. 15 shows a sectional side view of the preferred embodiment in FIG. 14 FIG. 65 shows a sectional front view subject attached to the preferred embodiment, in FIG. 14 FIG, 16 shows a sectional front view of another preferred embodiment on the invention FIG, 17 shows a sectional side view of the preferred embodiment in FIG. 16 FIG. 188 shows a front sectional view of subject attachment to preferred embodiment,in FIG, 16
The present invention is directed to distance separation of transmitter of electromagnetic broadcast radiation from its oper-ator and manual con-r is of such equipment by use of multiple section that would extend the transmitter from its manual controls. This done by placeing the transmitter in one compartment and the controls in another compartment that would be .' separated by the sections that can telescope into each if needed for convience.
This first embodiment of the present invention can be characterized as a transmitter isolater. As showsn in FIG.1, this embodiment utilizes a sectional arrangement to accompiish this. Feferring to FIG. 1, there is shown an inventive radiation reduceing unit in asspecially reduceing this radiation cancentra-tion to the head and hands. This device comprises hand grip 1.
cavity 2. mast sections 4.transmitter 3. bracket 5. mounting points 6. light signal emtter and receiver at base of cavity 7 light signal emitter and receiver 8. antenna area 9.
FIG. 2 hand grip 1. cavity 2. mast 3. mounting point 4.
bracket 5. iight signal emitters and receiver system 6.light signal emitters and receiver system 7. connection jack for controls 8. FIG. 3 hand grip 1. mounting points 2. transmitter 3.
cavity 7. light emitter and receiver system at bottom of cavity 6 . connection jack for control 4. FIG. 4 hand grip 1. mounting points 2. cavity 3. mast 14. bracket 15. FIG. 5 hand grip 1.
front view of cellular phone mounted on safety mast. FIG. 6 side view of safety mast in retracted state ;mounted on back of cellular phone.
FIG. 14. shows cellular phone mounted on the mast unit fron view mast is now extended mode. hand grip 1. mast 2.
FIG. 15 shows side view of invention.wihle in extended mode hand grip 1. mast 2. bracket 3. cellphone 4. FIG. 7 the doubie safety mast is another invention. hand grip 1. mast sections 2.
the double mast base section that is now extended from its bracket 3. bracket 4. mounting points 5. fiber optics material 6 .shaft on wich the double mast is mounted on, - commondate lateral movement 7. cavity 8. control connection jack 9.
FIG. 8 shows side view of FIG. 7 in extended-mode FIG. 14 hand grip 1 antenna 19 transmitter 18 fiber optic lines mounting point 5 cellular phone coccection jack 21 reversible electric motor 17 cavity 77 mast 2 baacket 3 flexible shaft 4 spool 16 FIG. 15 hand grip 22 mast 23 flexible shaft 24 bracket 80 cellphone connection jack 26 mounting points 25 cellphone mounting area 50 FIG. 65 cellphone mounted on the preferred embodiment 67 FIG. 16 antenna 38 mast 39 transmit-ter 36 mounting point 30 bracket 27 fiber op.tic lines 28 notch area 34 cavity 35 spring for extending mast 37 mast 33 mast release button for the extending 31 lache 40 button return spring 32 connection jack to cellphone 29 FIG. 17 hand grip 41 cavity 42 bracket 43 area were cellphone would be mounted on invention 44 FIG, 188 hand grip 45 sectionan front view of cellular phone mounted on preferred invention.
FIG. 9 shows sectional front view of FIG. 7 FIG.9 hand grip 1.
bracket 2. cavity 3. mounting points 4. FIG. 10 shows sectional side view of the double safety mast invention in contracted mode of FIG. 7 FIG. 11 shows a side sectional view of the double safety mast mounted on the uper portion of-a two part cellular phone hand grip 1. double mast 2. mounting point 4.
mast base 3. FIG. 12 shows front sectional view of the double mast mounted on two part cellphonethand grip 1. mast 2. cell-ular phone 4. FIG. 13 shows a sectional view of the doubie mast in retracted mode side view . hand grip 1. bracket 2. cellular phone 3.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other features,aspects and advantages of the present invention may be understood with reference to the' following drawing wherein;
FIG. 1 shows a sectional front view of a preferred embodim-ent of the invention;
FIG. 2 shows a side view of the preferred embodiment in', FIG.1 FIG. 3 shows sectional front view of preferred embodiment'ifny FIG. 1 FIG. 4 shows a side view of the preferred embodiment-fn.
FIG. `-1 FIG. 5 shows front view of subject unit with preferred embodiment atte.ct;Erd im.
FIG. 'l FIG. 6 show sectional side view of the subject unit with Freftrred embodiment in "FIG.-1 FIG. 7 shows sectional front view of another perferred embodiment on the invention;
FIG. 8 shows a side view of the preferred embodiment in FIG. 7 FIG. 9 shows a sectional front view of preferred embodiment of the present invention in FIG. 7 FIG. 10 shows a side view of the preferrfd embodiment in FIG. 7 FIG. 11 shows a sectionan side view of another preferred embodiment of the invention;
FIG. 12 shows a section front view of the preferred embodi-ment on the invention attached to subject'unit or cellular phone in FIG. 11 FIG. 13 shows a side view of the preferred embodimend of the ivention in FIG. 13 FIG, 14 shows a sectional front view another preferred embodiment on this invention FIG. 15 shows a sectional side view of the preferred embodiment in FIG. 14 FIG. 65 shows a sectional front view subject attached to the preferred embodiment, in FIG. 14 FIG, 16 shows a sectional front view of another preferred embodiment on the invention FIG, 17 shows a sectional side view of the preferred embodiment in FIG. 16 FIG. 188 shows a front sectional view of subject attachment to preferred embodiment,in FIG, 16
Claims (15)
1. The safety mast is a device for reducing the immediate or close range disperse of electromagnetic radiation to the operator from cellular phones walky-talky or other such transmitting equipment. This invention utilize multiple sections that are so design to telescope into another section the sections can be extended or retracted for convenient transport, at one end of the section is a compartment or cavity at the opposite end of telescoping ' sections or mast is a main section or bracket ' this invention require cellular phones, transmitters or other such devices to be modify with separated controls to be deployed in to the invention ' the transmitter component of the unit can be in the compartment and the controls or put on the main section.
Once the mast section are extended puts the transmitter at a distances from the operator thus reducing the close range dispersing of radiation to the operator. the main section or bracket comprising at least one section.
Transmitter to controls connected through optics fiber optics or such. Antenna is near transmitter in cavity
Once the mast section are extended puts the transmitter at a distances from the operator thus reducing the close range dispersing of radiation to the operator. the main section or bracket comprising at least one section.
Transmitter to controls connected through optics fiber optics or such. Antenna is near transmitter in cavity
2. The safety mast of claim 1, the safety mast comprising of a main section with at least one section or compartment
3. The safety mast of claim 1, the antenna is located in or on the compartment near its transmitter in order to further reduce immediate exposure to electromagnetic radiation to operator once the safety mast is extended.
4. The safety mast of claim 1, the mast sections are extended and retracted by manual method' by placing one hand on the bracket and the other hand the cavity grip pull to extend depress to retract.
5. The safety mast further variation of said invention utilizing a arrangement of two individual mast. Each mast is comprised of multiple section that telescopes another section the compartment or cavity is equally supported between both mast, at one end of the sections is the comportment at the opposite end of both mast is a main section or bracket , this invention require an existing cellular phones or transmitters to be modify with separated controls ; the transmitter and antenna portion of the unit can be put in the compartment and the remote controls and phone indicators is put on the main section.
Once both mast that are bridge by the compartment are simultaneity extended puts the transmitter at a distance with its antenna from the operator thus reducing radiation to the human operator ; the controls communicate with its transmitter with fiber optic or other such systems.
the double mast assembly is attached to base that precede the main section the base is so design joint once extended can be detected by hand to horizontal position for added convenience once the operator is finished with cellular phone the double mast is then depress by on its cavity hand grip in to its main bracket for convenient transport.
Once both mast that are bridge by the compartment are simultaneity extended puts the transmitter at a distance with its antenna from the operator thus reducing radiation to the human operator ; the controls communicate with its transmitter with fiber optic or other such systems.
the double mast assembly is attached to base that precede the main section the base is so design joint once extended can be detected by hand to horizontal position for added convenience once the operator is finished with cellular phone the double mast is then depress by on its cavity hand grip in to its main bracket for convenient transport.
6. The safety mast of claim 5, can be with external antenna or a antenna wherein, the compartment.
7. The safety mast further variation of said invention for reducing the immediate or close range disperse of electromagnetic radiation to operator from cellular phones walky-talky or other such radio transmitter equipment.
This invention utilize multiple section that are design to telescope into another section the sections can be extended by spring action and manually retracted for convenient transport, at one end of the sections is a compartment or cavity at the opposite end of the telescoping section or or cavity at the opposite end of the telescoping sections or mast is a main section or bracket; the transmitter thereof is put wherein compartment the controls is put on the main section the transmitter communicate with its controls with fiber optics. Once the safety mast extended puts the transmitter at a distance from the operator thus reducing radiation to operator. The antenna also extended with transmitter for added radiation reduction. The spring loaded safety mast mast has a elongated spring that is the length of the extended mast extending from the bottom of the bracket to the base of the cavity. The spring is inclosed in a sectional tube configuration of the mast that can telescope into another wherein the the mast assembly , the tube configuration keeps the spring in line while being compressed once the mast is retracted, when by hand it can be extended automatically by a release button , the release button is attached to the bracket and the buttons bolt rest in a notch area on the compartment or cavity , this would prevent the mast from extending unless the button is depressed, thus retracting the bolt out of the notch area on the compartment and the spring tension extends the mast.
This invention utilize multiple section that are design to telescope into another section the sections can be extended by spring action and manually retracted for convenient transport, at one end of the sections is a compartment or cavity at the opposite end of the telescoping section or or cavity at the opposite end of the telescoping sections or mast is a main section or bracket; the transmitter thereof is put wherein compartment the controls is put on the main section the transmitter communicate with its controls with fiber optics. Once the safety mast extended puts the transmitter at a distance from the operator thus reducing radiation to operator. The antenna also extended with transmitter for added radiation reduction. The spring loaded safety mast mast has a elongated spring that is the length of the extended mast extending from the bottom of the bracket to the base of the cavity. The spring is inclosed in a sectional tube configuration of the mast that can telescope into another wherein the the mast assembly , the tube configuration keeps the spring in line while being compressed once the mast is retracted, when by hand it can be extended automatically by a release button , the release button is attached to the bracket and the buttons bolt rest in a notch area on the compartment or cavity , this would prevent the mast from extending unless the button is depressed, thus retracting the bolt out of the notch area on the compartment and the spring tension extends the mast.
8. The safety mast of claim 7, once the button is depressed release the mast.
9. The safety mast of claim 7, can be water resistant
10. A power safety mast utilizes an electromechanical arrangement to extend its cavity with its transmitter and antenna away from controls and cellular phone operator,thus reducing radiation to both. This invention comprising of multiple sections that telescope into another section at one end of the multiple sections is the cavity at the other or opposite end of the sections is a bracket , the cavity would contain the transmitter and its antenna, the bracket would be attached to the controls of the cellular phone the bracket of the power safety mast is equip with a reversible electric motor . Attached to the rotor of the motor is a spool of flexible shaft that is attached to the base of the cavity , the switch would be in the off position when the switch is depressed to extend mode the mast electric motor drives the flexible shaft through a a guide extending the cavity and its components away from its controls and cellular phone operator thus reducing the immediate or close range disperse of electromagnetic radiation to the operator of such transmittion equipment.
The safety mast would remain extended only when the operator depress the retract button the section will retract in to the bracket for convenient transport.
The safety mast would remain extended only when the operator depress the retract button the section will retract in to the bracket for convenient transport.
11. The power safety mast of claim 10, utilizes an electromechanical arrangement to extend its mast.
12. The power safety mast of claim 10, extends its transmitter and antenna away from operator.
13. The safety mast of claim 1, uses fiber optics and other such methods to communicate between its controls and transmitter.
14. The safety mast of claim 1, mast individual sections can be shieded as a added safety to further reduce radiation.
15. The safety mast of claim 1, electromagnetic transmittions is broadcast from cavity or compartment area
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2008/011933 WO2010047671A2 (en) | 2008-10-20 | 2008-10-20 | The safety mast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2737268A1 true CA2737268A1 (en) | 2010-04-29 |
| CA2737268C CA2737268C (en) | 2019-11-26 |
Family
ID=42119873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2737268A Active CA2737268C (en) | 2008-10-20 | 2008-10-20 | Safety mast for reducing dispersion of electromagnetic radiation to mobile device operator |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102204109A (en) |
| CA (1) | CA2737268C (en) |
| WO (1) | WO2010047671A2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294556B (en) * | 2017-06-26 | 2022-12-23 | 重庆盾达科技有限公司 | Multifunctional interphone |
| CN109150205A (en) | 2018-09-05 | 2019-01-04 | 天津市华诺通信工程有限公司 | No SAR radiation terminal body, external communication body and mobile terminal |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2112208U (en) * | 1991-09-04 | 1992-08-05 | 张海潮 | Trigger auto-lifting antenna |
| US6437746B1 (en) * | 2000-11-14 | 2002-08-20 | Northrop Grumman Corp | Cellular telephone antenna array |
| CN2615885Y (en) * | 2003-03-14 | 2004-05-12 | 中国电子科技集团公司第五十四研究所 | Electric built-in rising-lowering antenna rod |
-
2008
- 2008-10-20 CN CN2008801316184A patent/CN102204109A/en active Pending
- 2008-10-20 CA CA2737268A patent/CA2737268C/en active Active
- 2008-10-20 WO PCT/US2008/011933 patent/WO2010047671A2/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CN102204109A (en) | 2011-09-28 |
| WO2010047671A2 (en) | 2010-04-29 |
| CA2737268C (en) | 2019-11-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5943627A (en) | Mobile cellular phone | |
| US4905270A (en) | Vehicular hands-free telephone system | |
| ES2086152T3 (en) | HAND-HELD RADIO TELEPHONE WITH SEPARATE SPEAKER. | |
| JP2503906B2 (en) | Portable radio | |
| WO2005022682A3 (en) | Detachable antenna module | |
| CN1726694A (en) | Wireless intercom system and method of communicating using wireless intercom system | |
| EP1670283A1 (en) | Bluetooth headset | |
| CA2737268A1 (en) | Safety mast for reducing dispersion of electromagnetic radiation to mobile device operator | |
| US7804452B2 (en) | Safety mast | |
| FI82334B (en) | BRUKSYSTEM FOER BILRADIO TELEPHONE. | |
| WO2000056051A1 (en) | Cellular telephone with reduced radiation exposure | |
| GB2366681A (en) | Handsfree device with sound-conducting tubes | |
| GB2361138A (en) | Mobile phone with acoustic duct extending from earpiece | |
| CN1231570A (en) | Portable mobile communication terminal device | |
| CN211702029U (en) | 2.4G, 5.2G, 5.8G wireless frequency band conversation system | |
| CN209390053U (en) | A kind of communication interphone | |
| WO2002017657A3 (en) | Transportable self-contained communications unit comprising transmission equipment and antennas for reconnecting a disconnected cell site to a communications network | |
| CN207720125U (en) | A kind of intercom with positioning function | |
| CN207603852U (en) | A kind of Novel earphone structure | |
| JP3049594B2 (en) | Automatic switch device by receiving radio wave | |
| KR200252843Y1 (en) | A automobile-handle-contacted apparatus with a voice-switch with a portable movie-telephone and a hands-free | |
| ES2153771A1 (en) | Communication system for mobile or cellular telephone to be installed inside vehicle has receiver earphone for picking up wireless signal from transmitter and then converting it into voice signal | |
| GB2353433A (en) | Mobile telephone has a detachable transmitter/receiver section | |
| KR200238267Y1 (en) | Handsfree set installed in a steering wheel | |
| KR200258275Y1 (en) | A hands-free apparatus with an interrupt-generator by setting of a portable telephone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20131021 |