EP1142444B1 - Microphone passif a transfert sans fil - Google Patents

Microphone passif a transfert sans fil Download PDF

Info

Publication number
EP1142444B1
EP1142444B1 EP99952376A EP99952376A EP1142444B1 EP 1142444 B1 EP1142444 B1 EP 1142444B1 EP 99952376 A EP99952376 A EP 99952376A EP 99952376 A EP99952376 A EP 99952376A EP 1142444 B1 EP1142444 B1 EP 1142444B1
Authority
EP
European Patent Office
Prior art keywords
receiving unit
piezoelectric device
sound information
microphone
signals
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.)
Expired - Lifetime
Application number
EP99952376A
Other languages
German (de)
English (en)
Other versions
EP1142444A1 (fr
Inventor
Jürgen MICHEL
Bernhard Raaf
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP1142444A1 publication Critical patent/EP1142444A1/fr
Application granted granted Critical
Publication of EP1142444B1 publication Critical patent/EP1142444B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/02—Microphones

Definitions

  • the present invention relates to a microphone for detection acoustic signals, conversion of the acoustic signals into electrical Signals and transmission of electrical signals to a receiving unit.
  • Known microphones of this type are usually via a Connecting cable or a cable through which the electrical Signals are transmitted to the receiving unit, with power supplied or have active electronic components and a own power supply in the form of a battery.
  • Microphones, where the electrical signals are wireless Transfer to a receiving unit For example, wireless microphones, have their own battery or have their own battery, the necessary energy for signal processing and signal transmission.
  • the receiving unit is, for example, a telephone base station connected to a landline network, but may also be a mobile station of a wireless telecommunications system.
  • a cable connection between the headset and the telephone base station is disadvantageous in many applications due to the restriction of freedom of movement.
  • DE 195 20 674 proposes a method and a device for continuous control of the tire pressure with a wireless transmission of the measuring signal, in which a piezoelectric transducer is provided.
  • a piezoelectric transducer is provided.
  • the microphone of a hands-free system in a motor vehicle should be as close to the mouth of the speaker in order to minimize noise caused by loud driving noises.
  • a throat microphone is proposed, which is effectively sealed off from external sound effects.
  • the resonator is formed here by piezoelectrics. The voltages that occur due to switching oscillations at the piezoelectric are tapped and sent by wire or wirelessly to a transmission unit.
  • the disadvantages of this realization are above all two things: On the one hand, it is generally more difficult to amplify the human voice on the basis of the sounds, as they are formed in the larynx, than the pronounced word.
  • a microphone for the transmission of sound information to a receiving unit to provide that is simple and easy to set up and at the same time a wireless transmission of the sound information to the receiving unit allows.
  • a piezoelectric Device which is a device for excitation of surface waves.
  • a piezoelectric device allows on the one hand the receiving and storing of excitation energy from the receiving unit and on the other hand a wireless transmission of acoustic information carrying electrical signals to the receiving unit, making a simpler and easier Structure of the microphone according to the invention is made possible.
  • the storage of excitation energy in the piezoelectric Device eliminates the need in the microphone one own power supply in the form of a battery or a To provide batteries.
  • the microphone according to the invention is a passive microphone, d. H. there is no dedicated power supply and the transmission of sound information carrying electrical Signals from the microphone to the receiving unit via continuous or discontinuous energy transfer in the form of an electromagnetic signal by the receiving unit.
  • the microphone according to the invention is thus lightweight and simple and yet allows a wireless Transmission of electrical signals.
  • the piezoelectric device stores the excitation energy from the receiving unit in the form of mechanical Vibrations. Furthermore, a particularly easy and simple construction can be achieved when the piezoelectric Device at the same time for storing the electromagnetic Excitation energy, to detect acoustic Signals and for converting detected acoustic signals in Sound information carrying electrical signals is used.
  • the invention passive microphone essentially comprises in this case only the piezoelectric device, creating a especially simple, lighter and cheaper construction possible is.
  • the piezoelectric device can therefore z. B. substantially consist of a piezoelectric membrane. The Excitation energy from the receiving unit is then transmitted via the Antenna of the microphone recorded and in mechanical vibrations the membrane converted.
  • the swinging Membrane detect acoustic signals, which also as mechanical vibrations due to the excitation energy caused vibrations of the membrane to be modulated.
  • the modulated vibrations are from the piezoelectric Membrane converted into electrical signals and to the receiving unit transfer.
  • the piezoelectric membrane can consist of quartz or lithium niobate. Especially Quartz has a very high quality as energy storage.
  • the piezoelectric Device essentially consisting of a surface acoustic wave delay line or consist of a resonator. Even in these embodiments serves so a single Device for storing the electromagnetic excitation energy, for detecting acoustic signals and for converting detected acoustic signals in sound information bearing electrical signals, allowing a simple construction possible is.
  • the piezoelectric Device for detecting Acoustic signals and a device for storing the electromagnetic excitation energy and for converting detected acoustic signals in sound information bearing include electrical signals.
  • the device for detecting the acoustic signals may for example consist essentially of a membrane, advantageously made of metal.
  • the decor for Saving the electromagnetic excitation energy and the Converting detected acoustic signals into sound information carrying electrical signals is advantageously from a piezoelectric element, such as. B. one Surface wave delay line or a resonator such as B. a piezoelectric membrane.
  • the membrane for Detecting acoustic signals for example, with the piezoelectric element, that is z. B. with the surface acoustic wave delay line or the resonator, glued be around the detected and converted into mechanical vibrations Sound signals directly from the excitation energy the receiving unit in the piezoelectric element caused Be able to modulate vibrations.
  • the modulated Vibrations are then from the piezoelectric Element converted into electrical signals and transmitted to the receiving unit.
  • one or more means for detecting provided by acoustic signals and arranged in such a way is that the detected acoustic signals are differential converted into acoustic information carrying electrical signals become.
  • the sensitivity of the invention Microphones are considerably increased.
  • a device for compensation of Disturbance is provided to, for example, the influence of To compensate for temperature fluctuations or the like.
  • the electromagnetic excitation energy from the receiving unit can be in the form of discontinuous or continuous Excitation signals to the piezoelectric device of the microphone according to the invention are transmitted.
  • the piezoelectric Device can be designed in this way be that they the electromagnetic excitation energy of the Received receiving unit in the form of short high-frequency signals.
  • the electromagnetic excitation signals from the receiving unit can also periodically repeated high-frequency signals be.
  • the piezoelectric device the electromagnetic excitation energy from the receiving unit in the form of excitation signals with a large bandwidth-time product receives.
  • FIG. 1 schematically shows a passive microphone 1 according to FIG present invention and a corresponding receiving unit 6 shown.
  • the passive microphone according to the invention 1 comprises a piezoelectric device 4 for receiving and storing excitation energy from the receiving unit 6 and for wirelessly transmitting from the detected acoustic Signals converted electrical signals to the Receiving unit 6.
  • the piezoelectric device comprises in illustrated embodiment, a device 2 for detecting of acoustic signals and a device 3 for Converting the detected acoustic signals into sound information carrying electrical signals.
  • the microphone 1 furthermore has one with the piezoelectric device 4 connected antenna 5 for receiving the excitation energy of the receiving unit 6 and to send the sound information carrying electrical signals to the receiving unit 6.
  • the receiving unit 6 also includes an antenna 7 for Emitting the excitation energy in the form of excitation signals and for receiving the electrical signals from the microphone 1.
  • the receiving unit transmits 6 the excitation energy, for example in the form of discontinuous Excitation pulses to the microphone 1.
  • the excitation pulses be via the antenna 5 of the piezoelectric Means 4 of the microphone 1 recorded and stored, z. B. as mechanical vibrations.
  • To this Purpose includes the piezoelectric device 4, for example a piezoelectric element as shown in FIG is.
  • the piezoelectric element consists of a piezoelectric membrane 8, on the example of applied metal strip existing reflectors 10 is provided are.
  • a converter 9 coupled to the antenna 5 is provided for converting the received excitation pulses into an acoustic one Surface wave provided on the membrane 8.
  • the converter 9 is connected to a ground. Similar to the reflectors 10, the converter 9 is made of the membrane. 8 applied metal structures, eg. B. aluminum.
  • the membrane Upon receiving a high-frequency excitation from the receiving unit 6, the membrane via the converter 9 by training a surface acoustic wave to vibrations stimulated. The vibrations widen on the top of the Membrane in both directions to the reflector fields 10 out from and is reflected by these, so that in the case of resonance forms a standing wave. In this way, the Excitation energy of the excitation pulse from the receiving unit 6 stored in the form of mechanical vibrations.
  • the piezoelectric Element reflects that as a mechanical vibration cached energy via the antenna 5 back to the receiving unit 6 in the form of a decaying vibration, as shown schematically in Figure 1. This evanescent Oscillation is in the receiving unit 6 via the antenna. 7 recorded, detected, demodulated and evaluated.
  • the resonant frequency of the piezoelectric element and thus the decaying vibration coming from the piezoelectric Element reflected back to the receiving unit 6 changes, under the influence of an elongation, because the propagation velocity of the surface wave and change the distances between the two electrodes of the converter 9.
  • the membrane 8 with the reflectors 10 serves in that in FIG. 1 illustrated embodiment as the means 3 for storing of excitation energy from the receiving unit 6 and the Converting the detected acoustic signals into sound information carrying electrical signals.
  • the device 2 For example, to detect acoustic signals by a membrane, not shown, advantageously from Metal, be formed, which is glued to the membrane 8.
  • the membrane serving as the detection means 2 decreases Sound waves and converts them into mechanical vibrations around.
  • the mechanical vibrations are thereby of the the acoustic signals detecting membrane on the piezoelectric Transfer membrane 8. It will be the acoustic Signals corresponding vibrations of the electromagnetic Excitation of the receiving unit 6 caused Oscillation of the piezoelectric membrane 8 aufmoduliert.
  • the modulated oscillation is via the converter 9 in electrical signals are converted back and via the antenna 5 as an electromagnetic signal back to the receiving unit 6 transfer.
  • Membrane 8 with the reflectors 10 and the converter 9 can be a Surface wave delay line as the device 3 for storing electromagnetic excitation energy of the receiving unit 6 and for converting the detected acoustic Signals in acoustic information carrying electrical Signals are used.
  • a surface wave delay line becomes electromagnetic excitation energy from the receiving unit 6 also as a mechanical vibration saved.
  • a detection device 2 for detecting of acoustic signals transmitted by the surface acoustic wave delay line coupled converts received-acoustic Signals, d. H. Sound waves, into mechanical vibrations which transmit to the surface acoustic wave delay line become. This causes runtime effects in the the excitation energy caused by the receiving unit 6 caused mechanical vibration, causing the acoustic Signals of this mechanical vibration modulated become.
  • the detected by the device 2 acoustic signals are thus supported by the device 3 in sound information implemented electrical signals and the piezoelectric Element modulated so that the back-reflected evanescent harmonic vibration the modulated sound information wearing.
  • This modulated sound information can be found in the Receiving unit 6 detected and evaluated.
  • the piezoelectric device 4 unites the devices 2 and 3 in one element, that detects both the acoustic signals as also the detected acoustic signals in sound information converts carrying electrical signals.
  • the in Figure 2 shown piezoelectric membrane 8 with the surface acoustic wave resonance structure serves as the only device 4 forming element.
  • the detected piezoelectric membrane 8 incoming acoustic signals after Type of pressure sensor.
  • the by an excitation pulse of the Receiving unit 6 excited standing wave in the piezoelectric Element is modulated by the acoustic signals, so that after the end of the excitation pulse to the Reception unit 6 reflected back decaying vibration carries the corresponding sound information.
  • a very sturdy passive microphone for provide wireless transmission of sound information, which has a simple and lightweight construction.
  • the microphone 1 according to the invention is designed as a passive component, d. H. without own energy supply in the form of a Battery or the like, because the energy of the excitation pulses from the receiving unit 6 through the piezoelectric element recorded, stored and transmitted to the sound information is used.
  • the piezoelectric element becomes discontinuous, for example, by a pulsed excitation signal stimulated. It is also possible for a favorable continuous To find excitation signals.
  • the Membrane 8 is a quartz membrane, which is a very high quality has a very long impulse response in the time domain generated in the form of a decaying vibration and transferred back to the receiving unit 6.
  • the piezoelectric membrane 8 may further substantially consist of lithium niobate.
  • the piezoelectric membrane shown in FIG 8 with the surface acoustic wave resonance structure can also a surface acoustic wave delay line as a single element the device 4 are used.
  • the surface wave delay line can be both the acoustic Detect signals as well as the detected acoustic signals implement electrical signals carrying sound information.
  • the piezoelectric device 4 for detecting the Acoustic signals may be a second piezoelectric Device to be provided for differential processing and implementation of the detected acoustic signals to allow and thus increase the sensitivity, for example to compensate for temperature fluctuations. If a separate device 2 for detecting acoustic Signals is provided, a second device 2 for Detecting acoustic signals should be provided to one differential conversion of the detected acoustic signals to enable electrical signals for the same purpose. Additionally or alternatively, a device for Compensation of other disturbances may be present.
  • the electromagnetic Excitation energy from discontinuous excitation pulses exist, which emitted by the receiving unit 6 and according to the microphone 1 according to the invention be received.
  • the excitation pulses from the receiving unit 6, for example, short high-frequency signals be repeated periodically if necessary become. It is advantageous if the excitation signal from the receiving unit 6, a large bandwidth time product having. Another possibility is continuous to use frequency modulated excitation signals.
  • the passive microphone 1 according to the invention is very light and it can be designed to be robust, for example Eyeglass frame can be attached.
  • the Microphone can thereby at the transition between serving as an antenna Be attached bracket and the spectacle frame.
  • the microphone according to the invention can be connected to a on the Eyeglass frame releasably fastened holder may be attached to the from the eyeglass frame down to the mouth the carrier extends.
  • the holder can in this case as the Antenna 5 of the microphone 1 may be formed.
  • the passive microphone 1 according to the invention is also used suitable in a wireless headset, with the voice signals to a telephone base station or a telephone mobile station be transmitted.
  • the microphone according to the invention can be built very light and sturdy, which is versatile and specialized applications.

Claims (14)

  1. Microphone passif (1), destiné à la transmission sans fil d'informations sonores à une unité réceptrice (6) et comprenant
    une antenne (5) destinée à la réception d'énergie électromagnétique d'excitation venant de l'unité réceptrice (6) et à la transmission sans fil de signaux électriques porteurs de l'information sonore à l'unité réceptrice (6) et
    un dispositif piézoélectrique (4), qui est conçu de telle sorte que de l'énergie électromagnétique d'excitation peut être emmagasinée et que des signaux acoustiques détectés sont convertis en signaux électriques porteurs de l'information sonore et
    qui est relié à l'antenne de telle sorte que l'énergie électromagnétique d'excitation reçue par l'antenne (5) est transmise au dispositif piézoélectrique (4) et que les signaux électriques porteurs de l'information sonore sont transmis à l'antenne
    caractérisé par le fait que le dispositif piézoélectrique (4) comporte un système pour l'excitation d'ondes de surface (9) en vue d'emmagasiner l'énergie électromagnétique d'excitation dans le dispositif piézoélectrique (4), des signaux acoustiques détectés pouvant être modulés sur les ondes de surface.
  2. Microphone passif (1) selon la revendication 1
    dans lequel le dispositif piézoélectrique (4) se compose essentiellement d'une membrane piézoélectrique (8) avec une structure de résonance à ondes de surface.
  3. Microphone passif (1) selon la revendication 1
    dans lequel le dispositif piézoélectrique (4) se compose essentiellement d'un circuit de retard à ondes de surface.
  4. Microphone passif (1), destiné à la transmission sans fil d'informations sonores à une unité réceptrice (6) selon l'une des revendications précédentes 1 à 3
    caractérisé par le fait que le dispositif piézoélectrique (4) est conçu de telle sorte que l'énergie d'excitation venant de l'unité réceptrice (6) peut être emmagasinée sous la forme d'oscillations mécaniques.
  5. Microphone passif (1) selon la revendication 2
    caractérisé par le fait que la membrane (8) est en quartz.
  6. Microphone passif (1) selon la revendication 2
    caractérisé par le fait que la membrane (8) est en niobate de lithium.
  7. Microphone passif (1) selon la revendication 1
    caractérisé par le fait que le dispositif piézoélectrique (4) comporte un système (2) destiné à détecter des signaux acoustiques et composé essentiellement d'une membrane.
  8. Microphone passif (1) selon la revendication 7
    caractérisé par le fait que la membrane est en métal.
  9. Microphone passif (1) selon l'une des revendications précédentes 1 à 8
    caractérisé par le fait qu'il est prévu un dispositif destiné à détecter des signaux acoustiques et un autre dispositif destiné à détecter des signaux acoustiques disposé de telle sorte que les signaux acoustiques détectés sont convertis d'une façon différentielle en signaux électriques porteurs de l'information sonore.
  10. Microphone passif (1) selon l'une des revendications précédentes 1 à 9
    caractérisé par le fait qu'il est prévu un dispositif destiné à la compensation de grandeurs perturbatrices.
  11. Microphone passif (1) selon l'une des revendications précédentes 1 à 10
    caractérisé par le fait que le dispositif piézoélectrique (4) reçoit l'énergie électromagnétique d'excitation venant de l'unité réceptrice sous la forme de signaux brefs à haute fréquence.
  12. Microphone passif (1) destiné à la transmission sans fil d'informations sonores à une unité réceptrice (6) selon l'une des revendications 1 à 11
    caractérisé par le fait que le dispositif piézoélectrique (4) reçoit l'énergie électromagnétique d'excitation venant de l'unité réceptrice sous la forme de signaux à haute fréquence répétés périodiquement.
  13. Microphone passif (1) destiné à la transmission sans fil d'informations sonores à une unité réceptrice (6) selon l'une des revendications 1 à 12
    caractérisé par le fait que le dispositif piézoélectrique (4) reçoit l'énergie électromagnétique d'excitation venant de l'unité réceptrice sous la forme de signaux d'excitation ayant un produit temps-largeur de bande élevé.
  14. Microphone passif (1) destiné à la transmission sans fil d'informations sonores à une unité réceptrice (6) selon l'une des revendications 1 à 10
    caractérisé par le fait que le dispositif piézoélectrique (4) reçoit l'énergie électromagnétique d'excitation venant de l'unité réceptrice sous la forme d'un signal d'excitation continu et modulé en fréquence.
EP99952376A 1999-01-11 1999-08-12 Microphone passif a transfert sans fil Expired - Lifetime EP1142444B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19900633 1999-01-11
DE19900633 1999-01-11
PCT/DE1999/002524 WO2000042813A1 (fr) 1999-01-11 1999-08-12 Microphone passif a transfert sans fil

Publications (2)

Publication Number Publication Date
EP1142444A1 EP1142444A1 (fr) 2001-10-10
EP1142444B1 true EP1142444B1 (fr) 2003-10-15

Family

ID=7893893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99952376A Expired - Lifetime EP1142444B1 (fr) 1999-01-11 1999-08-12 Microphone passif a transfert sans fil

Country Status (3)

Country Link
EP (1) EP1142444B1 (fr)
DE (1) DE59907398D1 (fr)
WO (1) WO2000042813A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH664659A5 (en) * 1987-03-14 1988-03-15 Erwin Meister Throat microphone with round bracket with tongue at one end - contg. round piezoelectric resonator as transducer and sound damping parts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS505396B1 (fr) * 1970-10-14 1975-03-03
DE2831377A1 (de) * 1978-07-17 1980-01-31 Siemens Ag Elektroakustischer wandler
JP2523867B2 (ja) * 1989-04-19 1996-08-14 松下電器産業株式会社 ワイヤレスマイクロホン
JPH05129872A (ja) * 1991-11-07 1993-05-25 Hitachi Ltd 表面波共振子、表面波フイルタ、分波器および移動無線装置
DE19520674A1 (de) * 1995-06-07 1996-12-12 Burkhard Weis Verfahren und Vorrichtung zur kontinuierlichen Kontrolle des Reifendruckes von Fahrzeugreifen während der Fahrt

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH664659A5 (en) * 1987-03-14 1988-03-15 Erwin Meister Throat microphone with round bracket with tongue at one end - contg. round piezoelectric resonator as transducer and sound damping parts

Also Published As

Publication number Publication date
DE59907398D1 (de) 2003-11-20
WO2000042813A1 (fr) 2000-07-20
EP1142444A1 (fr) 2001-10-10

Similar Documents

Publication Publication Date Title
DE102007046031B4 (de) Ultraschallsensor
DE69926810T2 (de) System der automatischen zeiteinstellung eines tragbaren gegenstandes mit einer uhrenfunktion
DE10121663B4 (de) Vibrationslautsprecher
DE10130909A1 (de) Vibrationslautsprecher mit Doppelmagnet
DE102011077219A1 (de) Fahrzeuganwesenheitsunterrichtungsvorrichtung
DE10144877A1 (de) Sensor zur Sitzbelegungserkennung
EP2559025A1 (fr) Simulation de bruits de moteur dans des véhicules silencieux
DE19840212A1 (de) Wandleranordnung für teil- oder vollimplantierbare Hörgeräte
DE102009027221A1 (de) Verfahren zum Abgleich von Ultraschallsensoren
DE102010015400B4 (de) Mikrofon für eine Hörvorrichtung sowie Verfahren zum Ermitteln eines Luftschalls und eines Körperschalls
DE102007003165A1 (de) Flächenlautsprecher sowie Verfahren zur Einstellung des Schwingverhaltens eines Schwingsystems
DE102006054605A1 (de) Abstandsmessverfahren und Abstandsmessvorrichtung
EP1142444B1 (fr) Microphone passif a transfert sans fil
DE10129869A1 (de) Vielfachton- und Signalgeber
DE102007039879A1 (de) Anordnung zur Ankopplung und Aufnahme eines Mobiltelefons innerhalb eines Kraftfahrzeugs
DE102013001323B3 (de) Kraftfahrzeug mit Kommunikationseinrichtung
DE102017209823A1 (de) Ultraschallsensor
DE4414746C2 (de) Sende-Empfangsschaltung für ein akustisches Pulsecho-Entfernungsmeßsystem
DE102013211630A1 (de) Elektroakustischer Wandler
DE3916031A1 (de) Aktive daempfungsvorrichtung fuer schwingungen, insbesondere in form von laerm, ohne akustische verzoegerung
DE2831401A1 (de) Elektroakustischer wandler
DE10009129A1 (de) Ultraschallsensor
DE102017220703B4 (de) Verfahren zum Durchführen eines Telefonats
DE102020123100A1 (de) Systeme und verfahren für einen piezoelektrischen membranwandler für automobilmikrofonanwendungen
KR890003245A (ko) 전기 음향 변환기

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010613

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20020731

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59907398

Country of ref document: DE

Date of ref document: 20031120

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040107

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040716

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20070829

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070828

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20090430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080812

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080901

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090303

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: DE

Effective date: 20090720

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20110407 AND 20110413

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 59907398

Country of ref document: DE

Owner name: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., HOU, US

Free format text: FORMER OWNER: PALM, INC. (N.D.GES. D. STAATES DELAWARE), SUNNYVALE, CALIF., US

Effective date: 20110406

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20140508 AND 20140514

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170725

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20180716

Year of fee payment: 20

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180812

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59907398

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180812