EP0266364A1 - Procede et systeme de transmission de donnees sans cable - Google Patents

Procede et systeme de transmission de donnees sans cable

Info

Publication number
EP0266364A1
EP0266364A1 EP19870901375 EP87901375A EP0266364A1 EP 0266364 A1 EP0266364 A1 EP 0266364A1 EP 19870901375 EP19870901375 EP 19870901375 EP 87901375 A EP87901375 A EP 87901375A EP 0266364 A1 EP0266364 A1 EP 0266364A1
Authority
EP
European Patent Office
Prior art keywords
receiver
transmitter
digital signals
type
unit
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Withdrawn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
EP19870901375
Other languages
German (de)
English (en)
Inventor
Faruk Baymak
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.)
ZESTERMANN Hanno
Original Assignee
ZESTERMANN Hanno
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
Priority claimed from DE19863609197 external-priority patent/DE3609197A1/de
Application filed by ZESTERMANN Hanno filed Critical ZESTERMANN Hanno
Publication of EP0266364A1 publication Critical patent/EP0266364A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/009—Teaching or communicating with deaf persons
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition

Definitions

  • the invention relates to a method and an arrangement according to the preambles of claims 1 and 14.
  • DE-OS 32 05 553 shows an arrangement serving as a pager with an input device and a display device, as a result of which information about calls to be made is transmitted to the wearer of this receiver.
  • the receipt of a message is usually indicated acoustically and the content of the message is saved so that it can then be queried.
  • a telephone number and possibly a keyword are displayed by the display device.
  • this arrangement and consequently with the working process that is carried out, it is disadvantageous that it cannot be used to inform a deaf person of extensive information arriving by radio or to enable him to communicate by radio with another person.
  • a so-called writing telephone has become known, with which, for example, two deaf people can communicate with one another via the telephone network.
  • the disadvantage here is that the arrangements to be used are bound to the locally fixed telephone connections.
  • a disadvantage common to both of the aforementioned solutions is that they are not suitable for transmitting information to a deaf person which is sent by voice.
  • the invention is based on the object of specifying a generic method and an arrangement for carrying it out in such a way that e.g. can be understood by a deaf person via radio broadcasts and that this enables communication between a deaf person and another hearing or deaf person.
  • FIG. 1 shows an arrangement for receiving wireless signals with a speech analysis unit
  • FIG. 2 shows the arrangement according to FIG. 1 with a working memory
  • FIG. 3 shows an arrangement for sending signals with a keyboard
  • FIG. 4 shows the arrangement according to FIG 3 with a microphone
  • 5 shows an arrangement for receiving wireless signals with a decryption unit
  • Fig. 7 shows a transmitter / receiver with a relay unit
  • FIG. 1 shows an arrangement for carrying out the method according to the invention.
  • this is a known type of receiver for high-frequency electromagnetic waves with a high-frequency amplifier (RF amplifier) 1, which is connected to an antenna 2, with a mixer 3, oscillator 4, an intermediate frequency amplifier (IF amplifier) 5, a demodulator 6, to which a voice analysis unit 8 with a bypass switch 9 and an output unit 10 are initially connected via a switch 7, instead of a low-frequency amplifier (LF amplifier) is connected to a display field 11.
  • RF amplifier high-frequency amplifier
  • IF amplifier intermediate frequency amplifier
  • a demodulator 6 to which a voice analysis unit 8 with a bypass switch 9 and an output unit 10 are initially connected via a switch 7, instead of a low-frequency amplifier (LF amplifier) is connected to a display field 11.
  • a printer 12 is connected to the output unit 9.
  • the demodulator 6 is also connected via a switch 13 to a conventional NF amplifier 14 with a loudspeaker 15.
  • the signal in question is amplified in the HF amplifier 1 and superimposed with the signal from the oscillator 4 in the mixer stage.
  • the IF thus created is selectively amplified in the IF amplifier 5 and then passes into the demodulator ⁇ , as a result of which the voice signal modulated on the transmitter frequency of the carrier frequency is separated from the IF.
  • This separated signal reaches the speech analysis unit 8, in which the speech signal is converted into digital signals.
  • these signals are assigned corresponding alphanumeric characters which are supplied to the output unit 10. From here the display field 11 is activated, where the linguistically received text appears in writing.
  • the main advantage of this arrangement is that a deaf person can use it to track radio programs, such as news programs, etc., consisting of spoken words
  • the NF amplifier 14 can be switched on to operate the loudspeaker 15 via the switch 13. This gives a hearing person the opportunity to acoustically follow the received program.
  • the received program can be reproduced optically and / or acoustically as required. It is further provided that the ge Service ⁇ th arrangement, such wireless transmissions can be gen empfan ⁇ , said to be transferred Informa "*
  • 25 functions can be entered on the transmitter side via a keyboard.
  • a carrier wave reaches the receiver, the modulation of which already consists of digital signals b - " " , to which alphanumeric characters are assigned.
  • the switch 9 is closed, see above
  • FIG. 2 An embodiment of the invention is shown in FIG. 2 and consists in that a memory 16 is assigned to the output unit 9.
  • the figure shows the already known functional units 1 to 15.
  • the memory 16 is connected to the output unit 10 via an input and an output line. This means that an incoming text can first be saved before it is later called up for display in field 11.
  • the memory 16 can also be used to arbitrarily set the speed at which the writing passes through the display field 11.
  • the signals are input into the memory 16 at the speed with which they are determined by the analysis unit and are output to the output unit 10 again at a generally slower adjustable speed.
  • a floppy disk drive or the like can also be connected to the output unit 10.
  • FIG. 3 shows a block diagram of an arrangement for the wireless transmission of signals.
  • a keyboard 17 is connected via an encoder 18 to an output unit 19 to which a data memory 20 is connected.
  • the output of the output unit 19 is also connected to a pulse amplifier 21, the output signal of which is fed to a modulator 22 in which a carrier frequency supplied by an oscillator 23 is modulated with the pulses coming from the amplifier 21.
  • the modulated carrier frequency thus present arrives at the power output stage 24 and is emitted via the transmission antenna 25. If a text is now entered via the keyboard 17, the carrier frequency is modulated with the digital signals corresponding to the respective alphanumeric characters and emitted so that these characters appear in the display of a receiver according to Figures 1 or 2.
  • FIG. 4 accordingly shows an arrangement for sending information, which again consists of the functional units 17 to 25, but is expanded by an encryption unit 26 with a program memory 27 and a microphone 28 with an LF amplifier 29 .
  • a speaking person can also connect with a deaf person on the receiving end.
  • the microphone 28 is switched on, a carrier wave modulated with the relevant speech signal is emitted via the antenna 25.
  • the corresponding processes on the receiver side proceed as described in connection with FIG. 1.
  • the transmitter for example by a deaf person, the keyboard 17 is switched on and the relevant information is entered.
  • the signals appearing in the keyboard code at the output of the output unit 19 are here, however, encoded again in the cipher unit 26 according to a specific ciphering program taken from the memory 27.
  • the signals obtained in this way are then used to modulate the carrier frequency.
  • the information sent herewith is incomprehensible to everyone who are not in possession of the aforementioned program.
  • FIG. 5 shows an arrangement for receiving signals from the transmitter according to FIG.
  • this arrangement has a decrypting unit 30 with a memory 31 and a switch 32.
  • the decryption unit 30 With the help of the decryption unit 30, encrypted information sent by means of a transmitter according to FIG. 4 can now be decrypted on the receiver side using the decryption program related to the encryption program used on the transmitter side. This ensures that only the person who is to receive the information has the relevant key present in the memory 31. If a signal that can be used to control the display field is obtained when speech signals are received via the speech analysis unit 8, the decoder 30 must be bridged by closing the switch 32.
  • FIG. 6 shows an arrangement for sending and receiving information, the broken line 33 indicating that the transmitting and receiving parts are arranged within a housing.
  • the transmission part in question corresponds to the arrangement according to FIG. 4 and the receiver part corresponds to the arrangement according to FIG. 5.
  • This arrangement can be switched over to transmission or reception as required.
  • the antenna switch 34 is connected to the output 25 of the power output stage 24. If information is now entered via the keyboard 17 or the microphone 28, the correspondingly modulated carrier frequency is emitted via the antenna 34. If the arrangement is set to "reception", the antenna 34 lies above the switching ter 34a at the input 2 of the RF stage 1 of the receiver and the information received either appears in the display field 11 or is made audible by means of the loudspeaker 15.
  • information obtained from digital signals can also be output on the printer 12.
  • transmission mode for control purposes it is provided that a predetermined minimum fraction of the output voltage supplied by the power output stage 24 reaches the input of the RF stage 1. This ensures that information radiated via the antenna 34 appears for checking purposes, for example in the display field 11. In this way, the activity, speaking, typing, of a person using the arrangement or the function of the functional units involved can be controlled.
  • the voice control takes place when the loudspeaker 15 is switched off on the basis of the display 11.
  • the memory 27 can contain a large number of different programs for encrypting information.
  • Such information encrypted and transmitted on the transmitter side can only be returned to the relevant plain text on the receiver side if the decryption program coordinated with the encryption program used on the transmitter side runs in the receiver.
  • the decryption program coordinated with the encryption program used on the transmitter side runs in the receiver.
  • one of the numerous encryption programs in the transmitter concerned is automatically selected and notified to the receiver so that the receiver switches on the corresponding decryption program.
  • the selection of a program and its duration can also be set manually.
  • an operator can enter his own encryption programs in a sub-area of the memory 27. So that such encrypted information is not received by people that have similar devices, it is provided that each receiver contains a permanently programmed address in its program memory.
  • the required decryption program is only made available here if a receiver that is ready to receive is addressed with its address.
  • An optical and / or acoustic wake-up signal is generated in order to possibly activate an operator.
  • Such an arrangement is preferably intended for stationary operation.
  • FIG. 7 shows an arrangement similar to that of FIG. 6, which in addition to the units 1 to 34 already described has a relay unit 35 with an antenna 36.
  • the relay unit 35 essentially consists of a seder / receiver, its receiver part with the outputs of the LF amplifier 14 and the deciphering unit 30 and its receiver part with the inputs of the output unit 19 and of the NF amplifier 29 is connected.
  • FIG. 8 shows a corresponding hand-held device 37 for remote control of the arrangement according to FIG. 7 with an antenna 38, a display field 39, a keyboard 40, a loudspeaker 41 and a microphone 42.
  • this is also a Transmitter / receiver, that is to say a reduced configuration of the arrangement according to FIG. 6, which, however, is of considerably lower power owing to the relatively short distance between the two devices and accordingly can generally be operated with batteries.
  • the invention is not based on the example examples shown.
  • the invention is not limited to the exemplary embodiments shown, but rather relates to all conceivable configurations within the claims.
  • a further embodiment of the method according to the invention consists in that information entered on the transmitter side via the microphone 28 is subjected to a speech analysis and then encrypted before the relevant carrier frequency is modulated with it.
  • digital signals arriving via the receiver are converted into acoustically reproducible speech signals by means of a speech synthesis unit.
  • the aforementioned speech synthesis unit is arranged on the transmitter side.
  • radio or television broadcasts already transmit digital signals input simultaneously via the keyboard via an additional channel in addition to the speech recorded via the microphone.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Multimedia (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé de transmission de données sans câble à l'aide d'ondes électromagnétiques de haute fréquence, et système de mise en oeuvre de ce procédé dans lequel une onde modulée par un signal analogique, en particulier un signal vocal, ou des signaux numériques, est émise via un émetteur et reçue par au moins un récepteur. Selon l'invention, lors de la réception, un signal vocal modulé sur l'onde du côté émetteur et restitué par démodulation du côté récepteur est soumis à une analyse de la parole et est ainsi converti en signaux numériques auxquels sont affectés des signes alphanumériques correspondant à la parole et les signaux pertinents sont affichés de manière optique. Des modes de réalisation de l'invention consistent, entre autres, à introduire les données à transmettre du côté transmission au moyen d'un clavier et à connecter l'unité d'analyse de la parole du côté récepteur. De cette manière, les malentendants sont capables par exemple de recevoir des émissions parlées, peuvent se comprendre entre eux et également communiquer avec d'autres personnes.
EP19870901375 1986-03-19 1987-03-03 Procede et systeme de transmission de donnees sans cable Withdrawn EP0266364A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE8607547 1986-03-19
DE19863609197 DE3609197A1 (de) 1986-03-19 1986-03-19 Verfahren und anordnung zur drahtlosen uebertragung von informationen
DE3609197 1986-03-19

Publications (1)

Publication Number Publication Date
EP0266364A1 true EP0266364A1 (fr) 1988-05-11

Family

ID=25842111

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870901375 Withdrawn EP0266364A1 (fr) 1986-03-19 1987-03-03 Procede et systeme de transmission de donnees sans cable

Country Status (2)

Country Link
EP (1) EP0266364A1 (fr)
WO (1) WO1987005735A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2773414A1 (fr) * 1998-01-06 1999-07-02 Clainche Alice Le Dispositif de transcription et d'affichage d'un message vocal
JP2003143256A (ja) * 2001-10-30 2003-05-16 Nec Corp 端末装置と通信制御方法
US7519042B2 (en) 2003-09-12 2009-04-14 Motorola, Inc. Apparatus and method for mixed-media call formatting
WO2005031701A2 (fr) * 2003-09-29 2005-04-07 Siemens Aktiengesellschaft Production automatique de representations graphiques en plusieurs dimensions d'elements de langage des signes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7411480A (en) * 1974-08-29 1976-03-02 Johannus Mathias Antonius Van Portable wrist transmitter with keyboard - has printed tape with coded message generating signal with reproduction on screen
US4010460A (en) * 1974-12-12 1977-03-01 Bell & Howell Company Alerting system with memory
US4181813A (en) * 1978-05-08 1980-01-01 John Marley System and method for speech recognition
JPS60176339A (ja) * 1984-02-22 1985-09-10 Nec Corp 無線呼出方式

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8705735A1 *

Also Published As

Publication number Publication date
WO1987005735A1 (fr) 1987-09-24

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