WO1994022234A1 - Mobile communications equipment - Google Patents
Mobile communications equipment Download PDFInfo
- Publication number
- WO1994022234A1 WO1994022234A1 PCT/IB1994/000041 IB9400041W WO9422234A1 WO 1994022234 A1 WO1994022234 A1 WO 1994022234A1 IB 9400041 W IB9400041 W IB 9400041W WO 9422234 A1 WO9422234 A1 WO 9422234A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hands
- free
- equipment according
- telephone
- Prior art date
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
- H04M1/6075—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle
-
- 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
- H04B1/3877—Arrangements for enabling portable transceivers to be used in a fixed position, e.g. cradles or boosters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/16—Connectors or connections adapted for particular applications for telephony
Definitions
- the subject of the present invention is telecommunications equipment and more particularly a pocket telephone which can be carried on board a vehicle.
- the subject of the present invention is telecommunications equipment and more particularly a telephone for pocket that can be used as a car and conference phone.
- It includes an accessory weighing less than 120 grams capable of instantly converting a pocket radio telephone into a "hands-free” car telephone or, just as instantly, transforming the pocket radio radio into an indoor telephone , also "hands-free” for telephoning while taking care of it manually or for holding a teleconference between two working groups distant from each other.
- the present equipment overcomes the drawbacks of the aforementioned devices and is defined by the characteristics of claim 1.
- Figure 1 is a perspective of a first embodiment of the telephone equipment and a pocket phone.
- FIG. 2 illustrates a block diagram of part of the "hands-free" circuit contained in the multi-function connector or in a support.
- FIG. 3 is a block diagram of part of the electronic circuit of the "hands-free" device contained in a housing or support.
- FIG. 4 illustrates in perspective a second embodiment of the telephone equipment according to the invention.
- FIG. 5 illustrates in perspective a third embodiment of the telephone equipment according to the invention.
- FIG. 6 is a block diagram of the electronic circuit contained in the support of the third embodiment illustrated in FIG. 5.
- the pocket telecommunication equipment according to the present invention comprises a pocket telephone having a large autonomy, due to a rechargeable battery, comprising all the options offered by a device of this type of high technology. It can be a device of the "Natel C", “Telecom 2000” type or others provided with its antenna.
- the present pocket telephone is particularly suitable for being carried on board a vehicle, for being used as a car telephone with “hands-free” equipment, without however requiring fixed installations in the vehicle. It is also particularly well suited to be used for conferences for several people also "without requiring fixed installations.
- this pocket phone 1 is mechanically connected and electrically connected using a multi-function connector 5 and a single cable 2 to a box.
- the body of the "hands-free” device can be presented in particular in the form of a small box of 4 cm x 4 cm by 2 cm approximately, it comprises an electronic printed circuit adapted to the electronics of the pocket radio telephone.
- This circuit manages and distributes according to an established diagram, the signals between the various elements of the telephone, whose power levels go from 7 to 30 V. According to the possible variants, it has, inside or outside this housing, a system of "ambient audio” allowing to clearly hear its correspondent, when one is within sight of the telephonic apparatus.
- the electric cable 2 comprises electrical conductors ensuring the connection between the "cigarette lighter" socket and the pocket telephone 1 for simultaneously supplying power and charging its built-in accumulator.
- This electric cable 2 also includes the electrical connections necessary for the connection between the "hands-free" box 3 and the pocket telephone 1.
- this electrical cable 2 simultaneously constitutes the mechanical support of the "hands-free” box 3.
- this "hands-free” box 3 is located near the "cigarette lighter” socket 4 and the electric cable 2 or at least its sheath in its portion connecting this socket 4 to the "hands-free” box is mechanically strong and relatively rigid.
- this section of rigid cable serves as a support and attachment to the "hands-free” box.
- the other part of the cable 2, connecting the "hands-free” box to the pocket telephone is flexible and extensible, as is the custom for ensuring the maneuverability of the pocket telephone 1.
- the end of the cable 2 is connected to the pocket telephone 1 using a plug-in connector 5.
- This connector 5 contains part of the “hands-free” electrical circuit of this equipment, illustrated in FIG. 2, and including in particular a microphone 6 and its associated circuit.
- the microphone 6 is automatically put into service while that incorporated in the telephone apparatus is automatically put out of service.
- This connector 5 is pluggable by means of connection pins a ... g in the pocket telephone 1 and is connected by the multi-wire cable 2b to the housing 3.
- the switch S makes it possible to choose the commissioning of d '' an external antenna or the internal antenna of the device.
- the pocket phone is also provided with a 'fixing member to be able to fix it on the surface of the dashboard of a vehicle or place it on a seat without it moving.
- This fixing member can be constituted by a suction cup fixed to the pocket telephone and making it possible to fix it by simple pressure on a smooth surface.
- This fastening member can also be formed by a velvet band with hooks fixed to the pocket telephone 1 cooperating with a velvet band with hooks correspon ⁇ dante fixed where the user so desires.
- This second strip of velvet with hooks can be affixed to a heavy cous ⁇ sinet, loaded with shot for example, and one of which surface is non-slip. It is thus possible to "fix" the pocket telephone anywhere simply by placing the said pad and placing the telephone on it.
- the assembly formed by the pocket telephone and its power cable comprising the connector, the "hands-free” box and the "cigarette lighter” socket is very compact. It can be stored in a very small volume kit. This would be true even if the user wishes to take with him also a charging and supply device via the network and a device for fixing the telephone, suction cup or pad.
- this equipment particularly intended to be taken on board a vehicle without requiring a fixed mon ⁇ tage, nevertheless allows the use of the pocket telephone alone outside the vehicle.
- This pocket phone can therefore be used as a telephone with surround speakers for conferences with several users. It is thus possible to have a "hands-free" telephone with ambient speakers both in the car and in the bathroom. conference or at home.
- This device therefore meets all the requirements of a car telephone combined with a pocket telephone with ambient speakers, and does not have any of the drawbacks of existing devices.
- the device which weighs only 120 grams is infinitely lighter and of course much less bulky than a mobile phone, while retaining all the faculties and all the ease of use.
- the pocket telephone When the pocket telephone is detached from the “hands-free” device in question, it will regain its original weight, will preserve the integrity of its functions and all its mobility as a pocket telephone; in a car it does not require any fixed installation on the vehicle, has a "hands-free” system and special anti-feedback circuits, and has a simple and original holding or fixing device, for example a suction cup or a pad.
- the accumulator can be powered by the "cigarette lighter" socket of a vehicle simultaneously ensuring the charging of the accumulator, so that the total capacity of the rechargeable battery of the pocket telephone is always available. when used separately.
- it can be connected to the 220V network via an auxiliary transformer.
- this equipment also has the advantage of being able to be acquired in any store, retailer, large area, etc. since it requires no assembly and is immediately ready for use as soon as a call number is assigned to it by the competent administration, which could even be done in the future at moment of purchase.
- the user can also, by connecting the pocket telephone to the 220V network using the auxiliary transformer, have a telephone with ambient speakers in any office or local.
- the assembly constituting the portable telecommunication equipment consists of a pocket telephone 1 and a low-voltage and "hands-free” power supply device.
- This low-voltage and "hands-free” power supply device comprises a "cigar-lighter” plug 4 intended to be connected to a low-voltage power outlet, a "hands-free” device 3 and an electrical cable.
- ⁇ plate 2 connecting on the one hand the pocket telephone 1 to the "hands-free” box 3 via the multi-function connector 5 containing the "hands-free” microphone and its associated circuit and on the other hand this box "hands-free” 3 to the low-voltage power plug 4.
- This electric cable comprises a first relatively rigid and short part 2a between the plug 4 and the "hands-free” box 3 and a second flexible, extensible and re ⁇ long long 2b between the "hands-free” device 3 and the connector 5.
- This set allows the user of a pocket radio phone to converse without having to place the mono-block handset against his ear.
- the user can leave the handset on its support as long as it is within direct sight of his mouth.
- FIG. 2 illustrates this electronic circuit housed in the housing 3 which comprises two stages of amplifiers here making use of integrated amplifiers U1 and U2 of type 082, the BFIN input of which receives the low frequency signals coming from the pocket telephone 1.
- the output of this chain of amplifiers feeds via an adjustable potentiometer P1 a filtering circuit comprising in particular an integrated circuit U3 of the MC 34019 type supplying the loudspeaker HP.
- This electronic circuit makes it possible to avoid and eliminate any snagging or interference between the loudspeaker and the microphone incorporated in the connector 5.
- a low voltage power supply is integrated so that the pocket telephone can also be supplied when it is connected to the "hands-free" device, thereby reducing the number of connections required for the use of a multi-function connector. 5 between the part 2b of the electric cable 2 and the pocket telephone 1. This supply simultaneously allows the supply of the electronic circuit of the "hands-free” and the recharging of the accumulators of the pocket radio-telephone 1 so that it is always ready for use without an external power source.
- This low voltage power supply is connected to the "cigarette lighter" plug by two conductors V BAT IN and the earth and delivers a first voltage + V for supplying the pocket telephone and the integrated circuit U3. as well as a second voltage + V / 2 supplying the "hands-free" electronic circuit.
- This embodiment allows, as can be seen, to limit the number of electrical conductors in the cable 2 to two conductors in part 2a and three in part 2b of this cable 2.
- the entire "hands-free" and power supply electronic circuit as well as the loudspeaker are housed in a small, rigid housing.
- a multi-function connector 5 allows the connection of the “hands-free” and power supply device 2,3,4 to the pocket telephone 1 and incorporates the microphone and its associated circuit.
- the "hands-free” equipment comprises: a) a molded connector, which is perfectly suited to a mobile cellular telephone. This contains an anti-feedback circuit, a pre-amplifier and filters. There is also incorporated a microphone suspended in a mem ⁇ brane of injected silicone, specially designed to stop the transmission of vibrations which without this device would result in buzzing noise. b) a compact molded box, containing a "system management” printed circuit, a “fast recharge” circuit (from 0 to 90% in 1 hour), a loudspeaker with its amplifier and a potentiometer adjustable by means of a small toothed wheel, protruding by 2mm, one side of the box. c) a car cigarette lighter connector. d) a light spiral cable which leaves part 5, passes through part 3 and ends in part 4.
- FIG. 4 illustrates a second embodiment of the telecommunications equipment according to the invention.
- the mobile phone or pocket phone 1 is pluggable into a support 10 which can be fixed to any element or wall of a dashboard of a vehicle for example by an adhesive tape, self-adhesive, or a strip of velvet with hooks.
- This support 10 comprises in its lower part a connector corresponding to that of the radio telephone and allowing it to be plugged in for its operation, its power supply and the recharging of its own batteries or rechargeable batteries by the cigarette lighter socket of a vehicle.
- the lower part of this support 10 comprises, like the connector 5 of the first embodiment, a microphone 11 which, when the radio telephone is plugged in, is automatically activated while that incorporated in the pocket phone is put out of service.
- the upper part of the support 10 includes the speaker 12 which in the first embodiment was placed in the housing 3.
- a spiral cord 13 connects the support, its electronic circuits, the connector, the microphone 11 and the loudspeaker to a cigar-lighter plug 14.
- This second embodiment is even more practical for the user because the support 10 can be permanently fixed, removably or not, in a vehicle, plugged into the cigarette lighter and the user has more than plugging his pocket phone into the holder when get into his car.
- the equipment notably includes a microphone, an anti-feedback circuit, an amplifier and a rapid charger for accumulator (from 0 to 90% in 1h) housed in a support.
- This system allows a harmonious proximity of the loudspeaker with the microphone, which favors the miniaturization of the system while avoiding any Larsen effect.
- the molded support in one piece contains the system and measures at most 15 x 6.5 x 4 cm and depending on the model may be further reduced. It will be connected to the cigar light by means of a continuous spiral cord. Its total weight is around 200 grs (with its spiral cord and its connector connecting it to the car cigarette lighter). In each of the different versions required, the equipment is also perfectly compatible with the most recent handheld mobile handsets.
- This equipment eliminates nuisance noise, feedback, whistling, snoring and other background noise, it transmits and reproduces, simply and faithfully, to the same qualitative degree, all the sounds that are received or emitted by the cellular telephone to which it is connected.
- the third embodiment illustrated in FIGS. 5 and 6 of the telecommunications equipment which is the most sophisticated and the preferred solution comprises a mobile telephone 20 pluggable into a support 21 connected by an extensible wire 22 to a plug 23, here a cigarette lighter plug, making it possible to connect it electrically to a source of electrical energy either directly, in the case of the use of a cigarette lighter socket of a vehicle cule, or via a transformer in the case of a connection to the electrical distribution network.
- the support 21 may include fixing means for fixing it on the dashboard of a vehicle or on a conference table. It comprises the usual electrical connections or contacts, cooperating with those of the plug-in mobile telephone 20 to ensure the charging functions of the battery of the mobile telephone 20 and to switch off the speaker and the microphone incorporated in the mobile telephone by replacing them with a speaker 24 and two microphones 25, 26 mounted in said support 21, when the mobile telephone 20 is plugged into support 21
- the geometric and / or spatial arrangement of the microphones 25, 26 with respect to the loudspeaker 24 is very important.
- a symmetrical arrangement is essential assu ⁇ rant a transmission of sound signals from the speaker 24 to each microphone with a practically equal intensity.
- the microphones 25, 26 are moreover arranged or shaped so as to perceive the ambient noises in a directive or selective manner, the microphone 25 being much more sensitive to the sounds coming from the left of the support while the microphone 26 is much more sensitive to sounds coming from the right of support 21.
- the electronic circuit of this third embodiment is illustrated diagrammatically in FIG. 6.
- the two microphones 25,26 are connected to the terminals M1 +, M1- and M2 +, M2- while the terminals FL3, FL4, FL6, Bat + and Bat- are connected to the contacts of the support 21 intended to cooperate with the contacts of the mobile telephone 20 when the latter is plugged into the support 21.
- the signals from microphones 25,26 are delivered to the inputs of a differential amplifier IC4A, L 833N, the output signal of which corresponds to the difference of the signals delivered by microphones 25,26.
- a switching provided for this purpose causes the loudspeaker 24 and the external microphones 25,26 to be put into service.
- a fast charger is also put into service and thus allows charging of the battery incorporated in the mobile phone if necessary.
- Electronic circuits adapt the ne- the correct functioning of said electronics. To facilitate the description of the device, three main parts must be considered:
- the signal supplied by the mobile telephone 20 corresponding to the message being received is brought by appropriate connections to the circuit IC5 which is an important component.
- the main function of this element is to prevent the loop comprising the microphones of the device, the signal transmission circuit of the user, the receiving circuit of the correspondent as well as his speaker, then the microphone of this same cor- respodnant and all the circuits up to the loudspeaker of the user of the device, do not enter into oscillation (ac ⁇ hooking or Larsen effect) when the overall gain of the described loop will have a sufficient value.
- this signal is used to actuate the loudspeaker HP which will provide sufficient acoustic power for the desired purpose.
- the device can be in a given instant in one of the following three states: a) transmission (the user speaks) b) reception (the correspondent speaks) c) standby (neither the correspondent nor the user speak)
- each of these states will correspond to certain internal conditions in the processing circuit.
- the amplification of the microphones will be at the maximum during the transmission state; to this maximum gain “microphones” will correspond a minimum amplification “loudspeaker” for the signal of the correspondent.
- the amplification of the correspondent's signal will be at most up to the loudspeaker and this maximum “loudspeaker” gain will correspond to a minimum amplification of the signal " user microphones.
- intermediate amplification levels are defined, always with the aim of not having a snag or feedback effect.
- a differential preamplifier makes it possible to attenuate, or even eliminate, the common component originating from the loudspeaker, hence a very significant reduction in the signal which would have been the cause, inter alia, of a catch. 2) A certain attenuation of the ambient noise is also obtained in this way.
- the equipment can be used indifferently for a vehicle with left or right-hand drive and this without modification.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephone Set Structure (AREA)
- Mobile Radio Communication Systems (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6520849A JPH08508147A (en) | 1993-03-16 | 1994-03-15 | Mobile communication device |
AU61558/94A AU6155894A (en) | 1993-03-16 | 1994-03-15 | Mobile communications equipment |
EP94908477A EP0691051A1 (en) | 1993-03-16 | 1994-03-15 | Mobile communications equipment |
FI954349A FI954349A (en) | 1993-03-16 | 1995-09-15 | Mobile telecommunications equipment |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH788/93-8 | 1993-03-16 | ||
CH78893 | 1993-03-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994022234A1 true WO1994022234A1 (en) | 1994-09-29 |
Family
ID=4195204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1994/000041 WO1994022234A1 (en) | 1993-03-16 | 1994-03-15 | Mobile communications equipment |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0691051A1 (en) |
JP (1) | JPH08508147A (en) |
AU (1) | AU6155894A (en) |
CA (1) | CA2158481A1 (en) |
FI (1) | FI954349A (en) |
WO (1) | WO1994022234A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0663749A1 (en) * | 1994-01-13 | 1995-07-19 | Nokia Mobile Phones Ltd. | Hands free equipment for a mobile telephone |
GB2296157A (en) * | 1994-12-16 | 1996-06-19 | Tcc Ind Inc | Multifunction hands-free cellular telephone adaptor |
WO1997000792A1 (en) * | 1995-06-23 | 1997-01-09 | Andreas Peiker | Telephone set with a handset having a mouthpiece and/or an earpiece |
GB2304487A (en) * | 1995-08-14 | 1997-03-19 | Lead Electronic Co Ltd | Hand-free communication system for a cellular phone |
US5732361A (en) * | 1996-09-18 | 1998-03-24 | Liu; Chun-Chieh | Adapter for mobile phone |
WO1998047300A1 (en) * | 1997-04-11 | 1998-10-22 | Moh Jin Chew | Telephone adaptor apparatus |
EP0780991A3 (en) * | 1995-12-20 | 1999-01-07 | Martin Dawes Telecommunications (Deutschland) GmbH | Adaptor cable for a mobile radio |
GB2331433A (en) * | 1997-10-27 | 1999-05-19 | Chi An Chen | Hands-free Adapter for a Mobile Telephone |
GB2332588A (en) * | 1997-12-17 | 1999-06-23 | Sony Electronics Inc | Hands-free telephone adapter having rotatable microphone boom. |
GB2337394A (en) * | 1998-09-23 | 1999-11-17 | Karim Ben Yahia | Hands free support for use of a portable cellular phone while driving |
EP1134958A1 (en) * | 2000-03-14 | 2001-09-19 | Sagem Sa | Mobile phone with multi-function plug connector |
US6687513B1 (en) * | 2002-10-30 | 2004-02-03 | Hsiu-Chu Hsu Li | Device for attaching portable phones to vehicle |
KR100595411B1 (en) * | 1997-10-08 | 2006-10-04 | 소니 일렉트로닉스 인코포레이티드 | A unit for use with a wireless telephone, a method of making the unit and a method of using the wireless telephone |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19850044C2 (en) * | 1998-10-30 | 2003-06-12 | Cullmann Gmbh | Mobile phone holder for a vehicle |
US8355515B2 (en) | 2008-04-07 | 2013-01-15 | Sony Computer Entertainment Inc. | Gaming headset and charging method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4325142A (en) * | 1980-07-25 | 1982-04-13 | Nippon Electric Co., Ltd. | Portable radio set with a carrying holder |
JPS62281596A (en) * | 1986-05-29 | 1987-12-07 | Mitsubishi Motors Corp | Microphone equipment for hand-free automobile telephone |
JPH03117148A (en) * | 1989-09-29 | 1991-05-17 | Fujitsu Ltd | Loudspeaker telephone set |
GB2245437A (en) * | 1990-06-18 | 1992-01-02 | Nodic Matsumoto Progress | Power supply for energising a portable telephone from a vehicle battery |
EP0494780A2 (en) * | 1991-01-11 | 1992-07-15 | Kabushiki Kaisha Toshiba | An adapter unit for adaptively supplying a portable radio telephone with power |
WO1992014328A1 (en) * | 1991-02-05 | 1992-08-20 | Profinor Sa | Telecommunication equipment |
-
1994
- 1994-03-15 WO PCT/IB1994/000041 patent/WO1994022234A1/en not_active Application Discontinuation
- 1994-03-15 EP EP94908477A patent/EP0691051A1/en not_active Withdrawn
- 1994-03-15 JP JP6520849A patent/JPH08508147A/en active Pending
- 1994-03-15 AU AU61558/94A patent/AU6155894A/en not_active Abandoned
- 1994-03-15 CA CA002158481A patent/CA2158481A1/en not_active Abandoned
-
1995
- 1995-09-15 FI FI954349A patent/FI954349A/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4325142A (en) * | 1980-07-25 | 1982-04-13 | Nippon Electric Co., Ltd. | Portable radio set with a carrying holder |
JPS62281596A (en) * | 1986-05-29 | 1987-12-07 | Mitsubishi Motors Corp | Microphone equipment for hand-free automobile telephone |
JPH03117148A (en) * | 1989-09-29 | 1991-05-17 | Fujitsu Ltd | Loudspeaker telephone set |
GB2245437A (en) * | 1990-06-18 | 1992-01-02 | Nodic Matsumoto Progress | Power supply for energising a portable telephone from a vehicle battery |
EP0494780A2 (en) * | 1991-01-11 | 1992-07-15 | Kabushiki Kaisha Toshiba | An adapter unit for adaptively supplying a portable radio telephone with power |
WO1992014328A1 (en) * | 1991-02-05 | 1992-08-20 | Profinor Sa | Telecommunication equipment |
Non-Patent Citations (2)
Title |
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PATENT ABSTRACTS OF JAPAN vol. 12, no. 174 (E - 612) 24 May 1988 (1988-05-24) * |
PATENT ABSTRACTS OF JAPAN vol. 15, no. 319 (E - 1100) 14 August 1991 (1991-08-14) * |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0663749A1 (en) * | 1994-01-13 | 1995-07-19 | Nokia Mobile Phones Ltd. | Hands free equipment for a mobile telephone |
US6075999A (en) * | 1994-01-13 | 2000-06-13 | Nokia Mobile Phones, Ltd | Hands free equipment |
US5642402A (en) * | 1994-01-13 | 1997-06-24 | Nokia Mobile Phones Limited | Hands free equipment |
GB2296157A (en) * | 1994-12-16 | 1996-06-19 | Tcc Ind Inc | Multifunction hands-free cellular telephone adaptor |
WO1997000792A1 (en) * | 1995-06-23 | 1997-01-09 | Andreas Peiker | Telephone set with a handset having a mouthpiece and/or an earpiece |
US7068783B2 (en) | 1995-06-23 | 2006-06-27 | Andreas Peiker | Telephone set with a handset having a mouthpiece and/or an earpiece |
GB2304487A (en) * | 1995-08-14 | 1997-03-19 | Lead Electronic Co Ltd | Hand-free communication system for a cellular phone |
EP0780991A3 (en) * | 1995-12-20 | 1999-01-07 | Martin Dawes Telecommunications (Deutschland) GmbH | Adaptor cable for a mobile radio |
US5732361A (en) * | 1996-09-18 | 1998-03-24 | Liu; Chun-Chieh | Adapter for mobile phone |
WO1998047300A1 (en) * | 1997-04-11 | 1998-10-22 | Moh Jin Chew | Telephone adaptor apparatus |
KR100595411B1 (en) * | 1997-10-08 | 2006-10-04 | 소니 일렉트로닉스 인코포레이티드 | A unit for use with a wireless telephone, a method of making the unit and a method of using the wireless telephone |
GB2331433B (en) * | 1997-10-27 | 2002-07-24 | Chi An Chen | Wireless mobile telephone adapter for automobiles |
GB2331433A (en) * | 1997-10-27 | 1999-05-19 | Chi An Chen | Hands-free Adapter for a Mobile Telephone |
GB2332588A (en) * | 1997-12-17 | 1999-06-23 | Sony Electronics Inc | Hands-free telephone adapter having rotatable microphone boom. |
GB2332588B (en) * | 1997-12-17 | 2001-11-28 | Sony Electronics Inc | Hands-free telephone adapters and operation methods |
US6058184A (en) * | 1997-12-17 | 2000-05-02 | Sony Corporation Of Japan | Speaker unit with boom microphone |
WO2000017014A1 (en) * | 1998-09-23 | 2000-03-30 | Karim Ben Yahia | Device for safe use of a portable cellular telephone while driving |
ES2158796A1 (en) * | 1998-09-23 | 2001-09-01 | Karim Ben Yahia | Device for safe use of a portable cellular telephone while driving |
BE1012401A5 (en) * | 1998-09-23 | 2000-10-03 | Ben Yahia Karim | Device for safe use of a cellular phone while driving. |
NL1011555C2 (en) * | 1998-09-23 | 2000-04-11 | Karim Ben Yahia | Device for the safe use of a cellular telephone while driving. |
FR2783663A1 (en) * | 1998-09-23 | 2000-03-24 | Yahia Karim Ben | DEVICE FOR SAFE USE OF A PORTABLE CELLULAR TELEPHONE WHILE DRIVING |
GB2337394A (en) * | 1998-09-23 | 1999-11-17 | Karim Ben Yahia | Hands free support for use of a portable cellular phone while driving |
EP1134958A1 (en) * | 2000-03-14 | 2001-09-19 | Sagem Sa | Mobile phone with multi-function plug connector |
FR2806564A1 (en) * | 2000-03-14 | 2001-09-21 | Sagem | MOBILE TELEPHONE WITH MULTIFUNCTION CONNECTOR |
US6687513B1 (en) * | 2002-10-30 | 2004-02-03 | Hsiu-Chu Hsu Li | Device for attaching portable phones to vehicle |
Also Published As
Publication number | Publication date |
---|---|
CA2158481A1 (en) | 1994-09-29 |
FI954349A (en) | 1995-11-15 |
FI954349A0 (en) | 1995-09-15 |
JPH08508147A (en) | 1996-08-27 |
AU6155894A (en) | 1994-10-11 |
EP0691051A1 (en) | 1996-01-10 |
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