EP1206888A1 - Interface de donnees optiques pour telephones sans fil - Google Patents

Interface de donnees optiques pour telephones sans fil

Info

Publication number
EP1206888A1
EP1206888A1 EP00955715A EP00955715A EP1206888A1 EP 1206888 A1 EP1206888 A1 EP 1206888A1 EP 00955715 A EP00955715 A EP 00955715A EP 00955715 A EP00955715 A EP 00955715A EP 1206888 A1 EP1206888 A1 EP 1206888A1
Authority
EP
European Patent Office
Prior art keywords
computer
wireless phone
data interface
optical data
interface adapter
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Withdrawn
Application number
EP00955715A
Other languages
German (de)
English (en)
Inventor
Raymond C. Wallace
Leslie I. Porciuncula
Jeffrey L. Bartlett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of EP1206888A1 publication Critical patent/EP1206888A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • 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
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces

Definitions

  • This invention relates to wireless communications systems. Specifically, the present invention relates to systems and methods for transferring data between a wireless phone and another electronic device.
  • Infrared data linking is an alternative method for providing a data interface to a wireless phone.
  • infrared energy is transmitted, without cables, between an infrared sensor on the phone and an infrared sensor on a computer attachment.
  • the performance of the data link is degraded by bright sunlight. This is problematic in outdoor phone testing environments.
  • the infrared data link is susceptible to blocking due objects placed between the phone and associated external computer.
  • external electromagnetic signals from other infrared devices such as television remote controls may cause significant interference that degrades the performance of the infrared data link.
  • the inventive system is adapted for use with a cellular telephone and an external computer.
  • the inventive system includes a first optical data interface adapter designed for use with and connected to the wireless phone and a second optical data interface adapter.
  • a fiber optic cable connects the first optical data interface adapter to the second optical data interface adapter.
  • the wireless phone is a cellular telephone and a computer is connected to the second optical data interface adapter.
  • the first and second optical data interface adapters include optical transmitters and photodetectors.
  • the invention is implemented as a system for placing wireless calls from a computer via the wireless phone.
  • the system includes the external computer and an optical data link between the phone and the computer.
  • Software running on the computer controls the wireless phone via the optical data link enabling the computer to place calls via the wireless phone.
  • the present invention is a system for taking measurements of a wireless phone and includes the computer, optically connected to the wireless phone.
  • Measurement software running on the computer controls the flow of the information so that information pertaining to the wireless phone is obtained by the computer.
  • the novel design of the present invention is facilitated by the use of the fiber optic cable for optically transmitting data to and from a computer.
  • the optical nature of the transmission reduces or eliminates interference between data transferring across the fiber optic cable and electromagnetic energy transmitted or received by the wireless phone.
  • FIG. 1 is a diagram of a cellular telephone connected to a typical data interface adapter and associated cable for connection to an external computer.
  • FIG. 2 is a diagram of an arrangement constructed in accordance with the teachings of the present invention.
  • FIG. 3 is a diagram of the arrangement of FIG. 2 fitted with wireless data interface adapters in accordance with the present teachings for creating a wireless data interface between the cellular telephone and the computer.
  • FIG. 4 is a more detailed block diagram of the arrangement of FIG. 2 showing various electrical components.
  • FIG. 5 is a flow diagram of software of the present invention for facilitating communications between a wireless phone and a computer via the data interfaces of FIGS. 2, 3, and 4. DESCRIPTION OF THE INVENTION
  • FIG. 1 is a diagram of a cellular telephone 10 connected to a typical data interface adapter 12 and associated cable 14 for connection to an external computer (not shown). Antenna currents travel along the cable 14 and tend to interfere with data transmission along the cable 14 and alter the radiation pattern of the phone's antenna system. In addition, noise generated by a digital bit stream within the cable 14 may interfere with the wireless transmission and reception of cellular communications signals via the cellular telephone 10.
  • FIG. 2 is a diagram of an arrangement constructed in accordance with the teachings of the present invention.
  • the cellular telephone 20 and a computer 22 are fitted with a telephone fiber optic data interface adapter 24 and a computer fiber optic data interface adapter 26, respectively.
  • the two adapters are interconnected with a fiber optic cable 28.
  • Antenna currents are deflected at the telephone fiber optic data interface adapter 24 and do not interfere with data transmission across the fiber optic cable 28.
  • Noise generated by digital signals within the computer 22 is deflected at the computer fiber optic data interface adapter 26, which inhibits or prevents the noise from interfering with cellular telephone wireless signal transmission and reception.
  • the fiber optic data interface adapters 24 and 26 may include photodetectors and transmitters (not shown) as is known in the art. These devices are commercially available.
  • the transmitters may be purchased from Siemens as SFH750V transmitters and the photodetectors may be purchased as Siemens SFH551/1-V-1 photodetectors.
  • the photo transmitters facilitate the conversion of electrical signals into optical signals for transmission across the fiber optic cable 28.
  • the fiber optic cable is a Mitsubishi EHV4002 fiber optic cable.
  • the unique design of the present invention facilitates the transmission of data between the cellular telephone 20 and the computer 22 without perturbing the antenna radiation pattern of the cellular telephone and without causing interference between computer electronics and cellular telephone transmissions and receptions.
  • the present invention is ideal for applications involving the use of the cellular telephone 20 as a modem for the computer 22.
  • FIG. 3 is a diagram of the cellular telephone 20 and computer 22 of FIG. 1 fitted with a cellular telephone wireless data interface adapter 40 and a computer wireless data interface adapter 42 of the present invention for creating a wireless data interface 44 between the cellular telephone 20 and the computer 22.
  • Antenna currents are deflected at the cellular telephone wireless data interface adapter 40 and noise generated by digital signals within the computer 22 is deflected at the computer wireless data interface adapter 42.
  • the wireless interface 44 replaces the fiber optic cable 28 of FIG. 2.
  • the wireless interface is implemented by way of optical transmission such as via Siemens laser transmitters or by way of infrared transmission via Hewlett Packard IRDA infrared transceivers.
  • FIG. 4 is a more detailed block diagram of the arrangement of FIG. 2 showing various electrical components within the telephone fiber optic data interface adapter 24 and the computer wireless data interface adapter 42.
  • the arrangement includes, from left to right, the computer 22, the telephone fiber optic data interface adapter 24, the fiber optic cable, the computer wireless data interface adapter 42, and the cellular telephone 20.
  • the computer fiber optic data interface adapter 24 includes, from left to right, an RS-232 to transistor-transistor logic (TTL) driver 50 in parallel with a first photodetector 52 and a first optical transmitter 54.
  • the fiber optic cable 28 connects the first photodetector 52 to a second transmitter 56 and connects the first transmitter 54 to a second photodetector 58, both in the optical data interface adapter 42.
  • the second transmitter 56 and the photodetector 58 are connected to the cellular telephone 20 via standard connection systems.
  • the fiber optic cable 28 is duplex plastic fiber optical cable.
  • the interface between the TTL driver 50 and the interface between the TTL driver 50 and the first photodetector 52 and the first optical transmitter 54 are standard interfaces known in the art.
  • the TTL driver 50 is made by Analog Devices Inc., part number ADM202EARW, Dual RS-232 Driver /Receiver.
  • the photodetectors 52 and 58 are Siemens SFH551/1-V-1 plastic fiber optic integrated photodetectors.
  • the transmitters 54 and 56 are Siemens SFH750V plastic fiber optic transmitter diodes.
  • the duplex fiber optic cable 28 is Mitsubishi EHV4002 1000 micron 2 plastic fiber optic cable.
  • TTL data to be directed from the computer 22 to the cellular telephone 20 is transferred to the TTL driver 50, which is a standard serial bus driver.
  • the TTL driver 50 can accommodate two transmit paths and two receive paths.
  • the TTL data is formatted for RS-232 serial transmission and is transferred to the first transmitter 54.
  • the first transmitter 54 converts the electrical serial data to serial optical data that is transmitted via the fiber optic cable 28 to the second photodetector 58 where it is converted back to electrical signals and subsequently transferred to the cellular telephone 20.
  • the cellular telephone 20 then processes the electrical serial data via circuits such as a baseband processor (not shown) on a baseband chip (not shown).
  • TTL serial data to be transferred from the cellular telephone 20 to the computer 22 is directed to the second optical transmitter 56, where it is converted to optical TTL serial data and transmitted via the fiber optic cable 28 to the first photodetector 52 where it is detected and converted to electrical TTL serial data.
  • the electrical TTL serial data is transferred to the TTL driver 50 where it is converted to RS-232 format.
  • the TTL data is then transferred to the computer 22 for further processing.
  • FIG. 5 is a flow diagram of software 70 of the present invention for facilitating communications between a wireless phone and a computer (see FIGS. 2 and 3) via the data interfaces of the present invention (see FIGS. 2, 3, and 4).
  • the software 70 includes routines that reside in the computer 22 and on a wireless phone computer (not shown) within the wireless phone 20.
  • an initial power-checking step 72 software running on the computer 22 checks if the wireless phone 20 is turned on. If the wireless phone 20 is not turned on, the software 70 ends. If the wireless phone 20 is turned on, control is passed to a command-waiting step 74.
  • the command-waiting step 74 software running on the computer 22 waits for requests for data and /or other user commands from a user of the computer 22. The commands and/or requests may be entered via a conventional input device such as a keyboard or mouse or a combination thereof. If in the command-waiting step 74, no commands are entered for a predetermined amount of time, the wireless phone 20 is turned off, or the user issues an exit command, the software 70 ends. Otherwise, if the software running on the computer 22 receives a user request for data /or another command other than an exit command, control is passed to a communications step 76.
  • the software running on the computer 22 initiates communications with the wireless phone 20 (via software running on a wireless phone computer) and sends an appropriate command and /or request to the wireless phone 20 based on the command and/or request received via the software running on the computer 22 in the command- waiting step 74.
  • control is passed to a processing step 78, where a software routine running on the wireless phone 20 processes the request and/or command and subsequently delivers an appropriate response back to the software running on the computer 22. Details of the software routines running on the wireless phone 20 for enabling the establishment of communications and for processing requests and /or commands may be developed by those ordinarily skilled in the art without undue experimentation.
  • control is passed back the command-waiting step 74, thereby forming a loop comprising the steps 74, 76, and 78 that is exited when the phone is turned off, the user issues an exit command, or the software routine times out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Optical Communication System (AREA)
  • Telephonic Communication Services (AREA)

Abstract

La présente invention concerne un système destiné à connecter un téléphone sans fil (20) à un circuit extérieur (22). Ce système comprend un premier adaptateur d'interface de données optiques (42) relié au téléphone sans fil. Il comprend aussi un second adaptateur d'interface de données optiques (24). Un câble de fibre optique (28) permet de connecter le premier adaptateur d'interface de données optiques (42) au second adaptateur d'interface de données optiques (24). Dans une réalisation spécifique, le téléphone sans fil est un téléphone cellulaire (20), et un ordinateur (22) est connecté au second adaptateur d'interface de données optiques (24). Les premier et second adaptateurs d'interface de données optiques (41, 24) comprennent des émetteurs optiques (56, 54) et des photodétecteurs (58, 52). Dans une réalisation caractéristique, la présente invention est réalisée sous la forme d'un système destiné à passer des appels téléphoniques depuis un ordinateur (22). Ce système comprend un ordinateur (22) indépendant du téléphone (20) et une liaison de données optiques (28) entre le téléphone sans fil et l'ordinateur. Un logiciel s'exécutant sur l'ordinateur permet de commander le téléphone sans fil via la liaison de données optiques (28) de façon à ce que l'ordinateur puisse passer des appels via ce téléphone. Dans une seconde réalisation caractéristique, la présente invention est réalisée sous la forme d'un système permettant de prendre des mesures de performance d'un téléphone sans fil et comprend un ordinateur relié optiquement à ce téléphone afin de transférer une information entre le téléphone et l'ordinateur. Le logiciel d'évaluation de performance qui s'exécute sur l'ordinateur permet de commander le débit de l'information de façon à ce que l'ordinateur obtienne l'information de performance relative au téléphone sans fil.
EP00955715A 1999-08-19 2000-08-18 Interface de donnees optiques pour telephones sans fil Withdrawn EP1206888A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US37821399A 1999-08-19 1999-08-19
US378213 1999-08-19
PCT/US2000/022744 WO2001013661A1 (fr) 1999-08-19 2000-08-18 Interface de donnees optiques pour telephones sans fil

Publications (1)

Publication Number Publication Date
EP1206888A1 true EP1206888A1 (fr) 2002-05-22

Family

ID=23492225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00955715A Withdrawn EP1206888A1 (fr) 1999-08-19 2000-08-18 Interface de donnees optiques pour telephones sans fil

Country Status (7)

Country Link
EP (1) EP1206888A1 (fr)
JP (1) JP2004500746A (fr)
KR (1) KR20020027563A (fr)
CN (1) CN1378760A (fr)
AU (1) AU6786900A (fr)
HK (1) HK1047849A1 (fr)
WO (1) WO2001013661A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040015520A (ko) * 2002-08-13 2004-02-19 에스케이텔레텍주식회사 광통신을 위한 이동통신 단말기 및 그를 이용한 무선통신시스템
WO2014008084A1 (fr) 2012-07-02 2014-01-09 Corning Cable Systems Llc Câble pour communication radiofréquence

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0619669A3 (fr) * 1993-03-22 1995-07-26 Ascom Business Systems Ag Dispositif d'interface pour une transmission de données par liaison radio.
JP2737672B2 (ja) * 1994-11-15 1998-04-08 日本電気株式会社 携帯情報通信装置
DE19538842A1 (de) * 1995-10-19 1997-04-24 Walter Dipl Ing Siepmann Mobiltelefon
FI955200A7 (fi) * 1995-10-31 1997-05-01 Nokia Corp Yhteiskäytäntö half-duplex -liikennöintiä varten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0113661A1 *

Also Published As

Publication number Publication date
KR20020027563A (ko) 2002-04-13
AU6786900A (en) 2001-03-13
JP2004500746A (ja) 2004-01-08
HK1047849A1 (zh) 2003-03-07
CN1378760A (zh) 2002-11-06
WO2001013661A1 (fr) 2001-02-22

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