WO1998004051A1 - Dispositif de communication sans fil avec un telephone mobile - Google Patents

Dispositif de communication sans fil avec un telephone mobile Download PDF

Info

Publication number
WO1998004051A1
WO1998004051A1 PCT/EP1997/003073 EP9703073W WO9804051A1 WO 1998004051 A1 WO1998004051 A1 WO 1998004051A1 EP 9703073 W EP9703073 W EP 9703073W WO 9804051 A1 WO9804051 A1 WO 9804051A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmitting
receiving
infrared
antenna
vehicle
Prior art date
Application number
PCT/EP1997/003073
Other languages
German (de)
English (en)
Inventor
Eckhard Mutterer
Original Assignee
Eckhard Mutterer
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eckhard Mutterer filed Critical Eckhard Mutterer
Publication of WO1998004051A1 publication Critical patent/WO1998004051A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/1143—Bidirectional transmission
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/737—Characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves

Definitions

  • the invention relates to a device for wireless communication with a mobile telephone having a hand-held device and with a transmitting and receiving device.
  • Most hand-held devices for wireless communication are small and handy hand-held walkie-talkies, so-called cell phones, which are light in weight and can be operated wherever there is a corresponding »network.
  • the transmission power of known cell phones is 1 or 2.
  • a disadvantage of these handheld radios is, on the one hand, their low transmission power, which limits the possible uses of the cellphones, which is particularly true when used inside the vehicle, where the transmission and reception qualities and the network stability leave something to be desired.
  • the radiated by the antenna and received electromagnetic waves in the radio wave range which serve as a carrier for the modulated sound signals, interference radiation, both for physical impairment of the user (e.g.
  • portable radio devices so-called portraits
  • the transmission power is between 5 and 8 watts.
  • their area of application is significantly greater than that of hand-held radios and the electromagnetic influence of a user compared to that of hand-held radios is smaller because their antennas are not arranged on the handset, but their use in the vehicle is restricted because they are large and difficult to carry mobile telephones represent. While they can be used anywhere in themselves, they are due to their size and their heavier weight than handheld radios.
  • car telephones with a transmission power of 8 watts are known especially for use in vehicles, the high transmission power of which enables a wide range of applications.
  • the antenna of such car telephones is located outside the vehicle, so that there is no electromagnetic interference on the user.
  • the disadvantage of this, however, is that the user can only be reached within the vehicle. It is not possible to change vehicles.
  • the installation of a car phone is cumbersome and expensive.
  • the invention is therefore based on the object of providing a device for wireless communication of the type mentioned at the outset, which is easy to use both outside and inside vehicles, buildings, etc. with a high level of security and in particular when used in the vehicle and in other rooms the electromagnetic load on the user in the head area is reduced despite the high transmission power.
  • the above-mentioned object is achieved by a device for wireless communication, which is characterized by an infrared transmitter and receiver unit arranged on the handheld unit and on the transmitter and receiver device. Because of the configuration according to the invention, a cordless / wireless infrared connection between the hand-held device and the transmitting and receiving device is thus provided. In this way, for example, annoying connecting cables Avoid use inside the vehicle. Furthermore, passengers, especially on the back seat of the vehicle, can also make phone calls without any problems, without the connection cables mentioned being able to be disruptive. Electromagnetic waves emitted in the head area of the user in the radio wave area are avoided due to the configuration according to the invention if the infrared connection between the transmitting and receiving device and the hand-held device is active;
  • the transmitting and receiving device can preferably be connected to an antenna separate from the hand-held device.
  • the connection can be made wirelessly to establish wireless communication or by means of a connecting cable.
  • the antenna can be the external antenna of a vehicle or the external antenna of a building. Accordingly, there is no electromagnetic influence on the user.
  • an infrared transmitting and receiving unit can also be arranged on the external antenna, in particular a vehicle external antenna.
  • the unit is preferably attached to the tip of the vehicle's external antenna. Correspondingly, damage to the infrared transmitter and receiver unit is avoided when the external antenna is retracted or extended.
  • the vehicle When leaving the In this way, the vehicle maintains the connection to the hand-held device via the infrared transmitter and receiver unit at the tip of the vehicle's external antenna. This enables uninterrupted speech traffic both when leaving the vehicle and when entering the vehicle. Accordingly, undesirable electromagnetic radiation does not occur to the user either when operating inside the vehicle or in the immediate vicinity of the vehicle.
  • the hand-held device can be an existing hand-held walkie-talkie or cell phone. This is then additionally provided with the infrared transmitter and receiver unit. This unit is preferably arranged on the antenna of the hand-held device, in particular at the tip of the antenna. In this way, when removing and inserting the antenna of the cell phone, damage to the unit is prevented from riding on.
  • Such a cell phone can then be used both for interference-free speech via the infrared transmitter and receiver unit and in conventional radio operation by emitting and receiving electromagnetic waves via the antenna.
  • the handheld device can preferably be switched over between antenna operation and infrared connection operation, the switchover preferably taking place automatically as soon as the distance between the vehicle's external antenna or transmitting and receiving device for an infrared Connection is too large or the distance to establish an infrared connection has been reached.
  • the switchover preferably taking place automatically as soon as the distance between the vehicle's external antenna or transmitting and receiving device for an infrared Connection is too large or the distance to establish an infrared connection has been reached.
  • an existing connection via the infrared transmitter and receiver unit at the top of the vehicle's external antenna is therefore maintained. receive.
  • the infrared connection can switch automatically to normal antenna operation / radio operation of the walkie-talkie. As a result, uninterrupted speech communication is always ensured both when leaving the vehicle and when entering the vehicle.
  • the operation of the device according to the invention is not limited to vehicles and their surroundings; rather, corresponding transmitting and receiving devices with infrared transmitting and receiving units can also be used in other ways, for example within closed rooms of buildings, etc.
  • the transmitting and receiving device is designed as a portable transmitting and receiving device.
  • the transmitting and receiving device can essentially be designed in the form of a slide-in housing which can be inserted into corresponding receiving devices in the vehicle interior. When leaving the vehicle, the entire receiving and transmitting device can then be removed in order to be used for other purposes. A portable radio is then available accordingly.
  • the receiving and transmitting device can essentially be in the form of one from the unpublished German Patent application 196 02 503.6 disclosed transmitting and receiving device.
  • the transmitting and receiving device is part of a central, fixed infrared transmitting and receiving system.
  • This can be a system arranged outdoors or in closed rooms. Correspondingly, it can also be used in buses, taxis and other public transport, as well as in closed rooms, in subway stations etc. Since the number and network authorization are linked to the walkie-talkie, telephoning with your own number is possible .
  • small areas e.g. Residential areas with a central transmission and reception system with infrared transmission and reception units can be integrated into such an "infrared connection network".
  • the hand-held device can also be a dual-mode telephone.
  • the hand-held device is preferably automatically switchable between the modes.
  • the radio transmission can be replaced by an IR connection according to the invention.
  • Such a hand-held device can then also be used as a cordless telephone, with the IR transmitter and receiver units also being able to be present in closed rooms and outdoors.
  • the units can, for example, be attached to the ceiling of the room, preferably at the outlet of electrical lines, on lighting fixtures, etc., so that the transmission and reception can take place optimally.
  • a device is thus created which makes it possible to avoid or reduce electromagnetic radiation in the radio wave range when using hand-held devices, in particular inside vehicles, outside and in the vicinity of vehicles and inside closed spaces.
  • Fig. 1 shows an inventive device for wireless communication with a mobile phone in the form of a
  • FIG. 2 shows the handheld radio from FIG. 1 when used outside the vehicle
  • FIG. 3 shows the arrangement of a transmitting and receiving device with an infrared transmitting and receiving unit when arranged within closed rooms
  • FIG. 4 is a simplified representation to illustrate the connection of several buildings in a residential area with transmitter and receiver systems with integrated infrared transmitter and receiver units.
  • the embodiments and application examples shown in FIGS. 1 to 4 for a device according to the invention for wireless communication do not represent any restriction of the device according to the invention.
  • the device 1 according to the invention for wireless communication shown in FIG. 1 has, in the exemplary embodiment shown, a radio telephone 2 in the form of a hand-held walkie-talkie (cell phone) which, in a conventional manner, has a display which can be switched on and off and an operating keyboard via which the mobile telephone / Mobile phone can be switched on and off and operated. Furthermore, as is customary in the case of such hand-held walkie-talkies, a microphone and a loudspeaker, a transmitter and in particular a receiver and suitable electronics are provided in the device.
  • a radio telephone 2 in the form of a hand-held walkie-talkie (cell phone) which, in a conventional manner, has a display which can be switched on and off and an operating keyboard via which the mobile telephone / Mobile phone can be switched on and off and operated.
  • a microphone and a loudspeaker a transmitter and in particular a receiver and suitable electronics are provided in the device.
  • the handheld radio 2 has an antenna 3 of conventional design as the transmitter and receiver. This can be, for example, a telescopic rod antenna. At the tip of the rod antenna 3, this is provided with an infrared transmitting and receiving unit 4.
  • Another infrared transmitting and receiving unit 5 is provided on the front panel 7 of a transmitting and receiving device 6 in the form of a slide-in housing.
  • the hand-held radio device 2 and the transmitting and receiving device 6 are active for setting up a wireless one
  • the transmitting and receiving device designed as a slide-in housing also has an antenna amplifier, not shown, which has the power supplied by the handheld radio 2 increases a higher transmission power and which has electronics for hands-free operation and may contain a radio receiver.
  • At least one acousto-electric hands-free device 8 in the form of a microphone for hands-free operation, display displays 9 and control panels 10 are provided on the front plate 7 of the slide-in housing 6.
  • the transmitting and receiving device 6 can in principle also have a loudspeaker for hands-free calling; additionally or alternatively, it can be connected to the conventional car speaker. Basically, however, it is provided that the calls are made using the handheld radio 2.
  • the slide-in housing 6 is inserted into an installation slot 11 in the interior of the vehicle.
  • the installation slot 11 is preferably the standard slot of the car radio.
  • this car radio slot 11 has power supply connections 12, an antenna connection 13 and connections 14 for the car speakers 15.
  • a case part 16 with a shaft 17 for receiving the slide-in housing 6 is provided.
  • a portable radio device a so-called portable, can be designed in order to be able to use the entire car telephone with transmitting and receiving device 6 as well as cell phone 2 outside the vehicle.
  • an infrared transmitter and receiver unit 20 is preferably also on the external antenna 19 of the vehicle 18 connected to the transmitting and receiving device 6 Tip of the antenna provided. This enables uninterrupted speech traffic both when leaving the vehicle 18 and when entering it. At a further distance from the vehicle 18, an automatic switchover from the infrared connection to the normal antenna operation of the cell phone 2 can then take place. In this way it is ensured, both inside the vehicle and in the immediate distance from the vehicle 18, that no electromagnetic radiation in the radio wave region acts on the user in the head region.
  • FIG. 3 shows a simplified representation of a possible arrangement of the infrared transmitting and receiving unit 22 within closed rooms for using the handheld radio device 2 on the basis of an infrared connection.
  • the infrared transmitting and receiving unit 22 is arranged as far as possible on the ceiling of the room in order to ensure a secure connection. In the illustrated embodiment, it is attached to a lighting fixture 21.
  • FIG. 4 again shows in simplified form how buildings can be connected to a central transmitting and receiving system by means of infrared transmission.
  • a digital switching center 23 is supplied via a terrestrial line network 24 and then emits, for example, via a suitable parabolic antenna 25.
  • the emitted waves are then picked up by transmitting and receiving systems 26 having transmitting and receiving devices, which are also provided with infrared transmitting and receiving units.
  • transmitting and receiving systems 26 having transmitting and receiving devices, which are also provided with infrared transmitting and receiving units.
  • transmitting and receiving systems 26 having transmitting and receiving devices, which are also provided with infrared transmitting and receiving units.
  • infrared transmitting and receiving units 27 Between these and in the illustrated embodiment on the outside of buildings attached transmit and receive an infrared connection is then established with infrared transmitting and receiving units 27.
  • the transmission and reception of the electromagnetic radiation in the radio wave range takes place only between the highest points of the buildings with one another, while the connection to the lower or lower buildings takes place by means of infrared transmission.
  • there is then an avoidance or reduction of the electromagnetic radiation in the radio wave range when using the hand

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un dispositif de communication sans fil avec un téléphone mobile comportant un appareil portatif, ainsi qu'avec un dispositif d'émission et de réception. Ce dispositif de communication sans fil se caractérise en ce qu'il comporte une unité d'émission et de réception à infrarouges, montée sur l'appareil portatif, ainsi que sur le dispositif d'émission de et de réception.
PCT/EP1997/003073 1996-07-20 1997-06-12 Dispositif de communication sans fil avec un telephone mobile WO1998004051A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19629408A DE19629408A1 (de) 1996-07-20 1996-07-20 Vorrichtung zur drahtlosen Kommunikation mit einem Mobiltelefon
DE19629408.8 1996-07-20

Publications (1)

Publication Number Publication Date
WO1998004051A1 true WO1998004051A1 (fr) 1998-01-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/003073 WO1998004051A1 (fr) 1996-07-20 1997-06-12 Dispositif de communication sans fil avec un telephone mobile

Country Status (2)

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DE (1) DE19629408A1 (fr)
WO (1) WO1998004051A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7257426B1 (en) 1999-05-26 2007-08-14 Johnson Controls Technology Company Wireless communications systems and method
US7970446B2 (en) 1999-05-26 2011-06-28 Johnson Controls Technology Company Wireless control system and method
US8200214B2 (en) 2006-10-11 2012-06-12 Johnson Controls Technology Company Wireless network selection

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6396612B1 (en) 1998-02-11 2002-05-28 Telefonaktiebolaget L M Ericsson System, method and apparatus for secure transmission of confidential information
US6901241B2 (en) 1998-02-11 2005-05-31 Telefonaktiebolaget L M Ericsson (Publ) System, method and apparatus for secure transmission of confidential information
US7787907B2 (en) 1999-05-26 2010-08-31 Johnson Controls Technology Company System and method for using speech recognition with a vehicle control system
DE19949339A1 (de) * 1999-10-13 2001-04-19 Deutsche Telekom Ag Verfahren und Anordnung zur Verminderung der Belastung eines Mobiltelefon-Benutzers durch elektromagnetische Strahlung im Funkwellenbereich
DE10062671A1 (de) * 2000-12-15 2002-06-20 Bsh Bosch Siemens Hausgeraete Vorrichtung und Verfahren zur Eingabe von Informationen in eine Steuereinheit
DE10121860A1 (de) * 2001-05-03 2002-11-14 Kadir Yaleinkaya Autohalterung für Mobiltelefone (Handys) zusammen mit einem Headset als schnurlose Autofreisprechvorrichtung
DE102005047742A1 (de) * 2005-09-29 2007-04-05 Siemens Ag Funkmodul und Anordnung mit einem Funkmodul

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456793A (en) * 1982-06-09 1984-06-26 Bell Telephone Laboratories, Incorporated Cordless telephone system
WO1992010046A1 (fr) * 1990-12-03 1992-06-11 Light Ideas Incorporated Telephone cellulaire a liaison optique
US5201067A (en) * 1991-04-30 1993-04-06 Motorola, Inc. Personal communications device having remote control capability
GB2282731A (en) * 1993-10-08 1995-04-12 Nokia Telecommunications Oy Dual mode subscriber terminal and a handover procedure of the dual mode subscriber terminal in a mobile telecommunications network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4456793A (en) * 1982-06-09 1984-06-26 Bell Telephone Laboratories, Incorporated Cordless telephone system
WO1992010046A1 (fr) * 1990-12-03 1992-06-11 Light Ideas Incorporated Telephone cellulaire a liaison optique
US5201067A (en) * 1991-04-30 1993-04-06 Motorola, Inc. Personal communications device having remote control capability
GB2282731A (en) * 1993-10-08 1995-04-12 Nokia Telecommunications Oy Dual mode subscriber terminal and a handover procedure of the dual mode subscriber terminal in a mobile telecommunications network

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7257426B1 (en) 1999-05-26 2007-08-14 Johnson Controls Technology Company Wireless communications systems and method
US7970446B2 (en) 1999-05-26 2011-06-28 Johnson Controls Technology Company Wireless control system and method
US8380251B2 (en) 1999-05-26 2013-02-19 Johnson Controls Technology Company Wireless communications system and method
US8494449B2 (en) 1999-05-26 2013-07-23 Johnson Controls Technology Company Wireless communications system and method
US8897708B2 (en) 1999-05-26 2014-11-25 Johnson Controls Technology Company Wireless communications system and method
US9318017B2 (en) 1999-05-26 2016-04-19 Visteon Global Technologies, Inc. Wireless control system and method
US9370041B2 (en) 1999-05-26 2016-06-14 Visteon Global Technologies, Inc. Wireless communications system and method
US8200214B2 (en) 2006-10-11 2012-06-12 Johnson Controls Technology Company Wireless network selection

Also Published As

Publication number Publication date
DE19629408A1 (de) 1998-01-22

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