EP0862820B1 - Device for the optical transmission of signals - Google Patents
Device for the optical transmission of signals Download PDFInfo
- Publication number
- EP0862820B1 EP0862820B1 EP96942260A EP96942260A EP0862820B1 EP 0862820 B1 EP0862820 B1 EP 0862820B1 EP 96942260 A EP96942260 A EP 96942260A EP 96942260 A EP96942260 A EP 96942260A EP 0862820 B1 EP0862820 B1 EP 0862820B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- optical
- transmission medium
- optical transmission
- movement
- transmitting 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims description 99
- 230000008054 signal transmission Effects 0.000 title claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 56
- 239000000835 fiber Substances 0.000 claims description 10
- 239000007850 fluorescent dye Substances 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/06—Non-electrical signal transmission systems, e.g. optical systems through light guides, e.g. optical fibres
Definitions
- the invention relates to optical devices Signal transmission between a transmitting unit and a Relatively mobile receiving unit, which has one of the light-conducting body, here as an optical transmission medium referred to, are optically coupled together.
- optical Systems For data and signal transmission are often optical Systems used. These basically consist of one Transmitting unit and a receiving unit, both via a optical transmission medium are interconnected. is the optical transmission medium the free space or air so results in a light barrier-like arrangement.
- optical fibers such as glass or plastic fibers used to guide the light.
- optical fibers such as glass or plastic fibers used to guide the light.
- the removal of the optical path, between transmitting and receiving unit constant. That means, that the amplitude of the received signal in the receiving unit is hardly subject to fluctuations over time. This results a consistent transmission quality.
- the transmitter now goes through all positions starting from the Receiver to the end of the optical medium, so does the Runtime too.
- the light comes to almost no runtime Receiver.
- This abrupt runtime difference which during the transition can occur in the transferred Signals cause a phase jump.
- This phase jump limits the transmissible bandwidth and can lead to transmission errors to lead.
- optical transmission medium in the transmission of optical signals via a formed into a closed curve optical transmission medium is an overlap at the beginning and end of the optical medium unavoidable, provided no failure of the Transfer in this position can be accepted.
- the first signal reaches after a short distance and thus also short time the receiver.
- the second signal arrives after passing through a longer distance and thus with a big one Delay the receiver. Both signals are now superimposed and give a wrong sum signal. This will be the Transmission negatively affected.
- the signal propagation time equals half Period results in an extinction of the signal. Meaningful data transfer is no longer possible here.
- EP-A-0 149 280 discloses an arrangement for data transmission between two relatively rotatable parts described.
- a transmitter feeds light into a hollow cylindrical one and on the inside mirrored mirror.
- At least two receiving transducers are provided whose output signals supplied to the inputs of an OR circuit are.
- This arrangement has the disadvantage of bandwidth limitation as well as very strong signal amplitudes due to the high attenuation of the long path length of the transmission path.
- the invention is based on the object, a device for optical signal transmission between a transmitting unit and a relatively movable receiving unit, the over an optical transmission medium are coupled together, in such a way that the aforementioned disturbing influences largely switched off on the transmission quality should be.
- the Transmission quality independent of relative movements between Transmitter and receiver unit i. that no the data transmission interfering signal overlaps at the place of Receiving unit occur.
- the device should have a require little space and cost and in particular be suitable for broadband signal transmission.
- the receiving unit at least one optical Receiver has that of an optical transmission medium whose length is shorter than that of an optical transmitter traveled path relative to the transmission medium, and that the transmitting unit has at least two optical Transmitter, the so in the longitudinal direction of movement spaced apart so that the light at least an optical transmitter coupled into the transmission medium.
- This subject matter of the invention also relates to an optical signal transmission between moving parts.
- the Movement can be circular, linear, or any other take any curve, as long as a sufficient Signal coupling from the transmitting unit to the optical transmission medium is guaranteed.
- path length of Movement refers to linearly moving parts Length of the path along which the transmitting unit and receiving unit can be moved against each other.
- circular Movements refers to the corresponding share of the Circumference of the circle, however, to the full extent of the circle. This also applies to any other curve along one of them Movement can take place.
- the optical Path length be made as short as possible.
- optical signals with different maturities the receiving unit to reach can be safely prevented optical signals with different maturities the receiving unit to reach.
- optical transmitter with little effort and low Costs are producible while optical receivers alone due to the broadband amplifier very elaborate and are expensive.
- an optical medium is not used, in that on the whole way of moving from a transmitter Light can be coupled, but it will be a short used optical medium, which is only part of the path length covers. So that on the whole path length an optical transmission becomes possible, are several optical transmitters in the transmitting unit available. These are arranged so that always at least one optical transmitter illuminates the optical medium. This is a seamless signal transmission on the total path length possible.
- the receivers of the receiving unit are not as usual at the end of the sections of optical media, but roughly arranged in the middle of the sections of the optical media.
- the transit times of the optical signals of both Ends of the optical medium the same size.
- the optical transmitters of the transmitting unit are then arranged so that the distances between them are so great that as soon as a transmitter is an optical Medium leaves, just a second transmitter on the other side of this optical medium approaches. This is one seamless signal transmission possible.
- the receiving unit contains several optical receivers each connected to an optical medium.
- the Receiving unit is designed such that the signals of the optical receivers are linked together so that a higher signal level or higher reliability Redundancy can be achieved.
- the Signals from several optical receivers can be added to overall a higher signal level and less noise to obtain.
- several signals can be combined to enable redundant transmission, so that in case of failure of a transmitter, an optical medium or also a receiver's transmission over another way still possible.
- Another embodiment relates to an arrangement in which the transmitting unit contains a position sensor.
- This position sensor Determines which optical transmitter is watching located above an optical medium. This will be the corresponding one optical transmitter signals. This allows the optical transmitters activate the full transmit power and optical Transmit signals. He leaves the area of the optical Medium, he is signaled to leave and he can reduce its transmission power or even completely switch off. With this arrangement, the total power consumption of the transmission system is reduced. By switching off the Transmitter also increases their life and production of electromagnetic interference in the powerful Transmission drivers are reduced.
- the transmitting unit has at least as many optical transmitters as signal channels present are.
- the transmitting unit and / or the receiving unit is now designed so that they also have a selector switch contains, which is controlled by a position sensor. Of the Position sensor tells the selector switch which optical Transmitter just signals over the optical medium and the associated receiver on a particular logical signal channel can transfer. It is important that every signal channel is transmitted via a defined path. The transmission path may vary depending on the position of the transmitting and receiving unit vary. It only has to be ensured that z. B. the Signals of the channel 1 on the side of the transmitting unit also for Channel 1 can be transmitted on the side of the receiving unit.
- a selector switch on the side of the Sender unit is present, are displayed. Is located z. As the transmitter 1 on the receiver 1, so is the logical signal channel 1 from the selector switch to the transmitter 1 connected through. Now the device moves a bit continue, so at a later time the transmitter 2 the receiver 1 stand. Now the selector switches the Signals of the signal channel 1 to the transmitter 2, so that this can transmit its signals back to the receiver 1. Emotional The whole arrangement in turn a little further, so is at a later time transmitter 3 above the receiver 1. Now, the selector switch the signal channel 1 to the transmitter 3, so that this again signals to the receiver 1 can transmit.
- the corresponding scheme applies to all other transmitters, receivers and signal channels as well.
- the transmission medium used a photoconductive fiber.
- This fiber can work accordingly the prior art as glass fiber, plastic fiber or fiber of another photoconductive material be educated.
- the transmission medium can be light-guiding molding.
- a light-conducting Liquid used as a transmission medium.
- a further embodiment of the device according to the invention is based on the light beam propagation within the optical transmission medium in such a way that either optical signals on different Because of within the transmission medium in the way spread that they are the same at the place of the receiving unit Times arrive so that they are put together into a single signal or that the transmission medium is in a way that is designed for a separate spatial Signal transmission of the individual light signals is ensured to avoid signal overlaps.
- a further advantageous embodiment is that in the case of a linear movement between transmitting unit and Receiving unit, the transmission medium also linear is formed, and preferably parallel to the direction of movement is arranged.
- a further advantageous embodiment is that in the case of a circular movement between the transmitting unit and receiving unit, the transmission medium also circular is formed, and preferably parallel to the direction of movement is arranged.
- the transmission medium from a circular arranged optical fiber consisting of a fluorescent dye is doped. By this doping can light be coupled at any point of the fiber.
- the transmission medium interrupted at least at one point, by deriving the transit times of the optical signals in both directions the transmission medium to the receiving unit equal are big.
- This device is based on the idea that a desired independence of bandwidth from the Signal propagation times can only be achieved if prevented is that signals in different ways with different Runtime reach the recipient. This means that the independence of the bandwidth from the signal delays guaranteed, provided that only a single signal is the receiver reached. This is e.g. at a linear distance the Case. Similarly, independence can be achieved if several signals arrive at the receiver, but all signals have the same terms to the receiver.
- Another embodiment results from the fiber with doped with a fluorescent dye, so that the Coupling of light at each position of the transmitting unit becomes particularly easy along the curve in the fiber.
- Figure 1 shows an inventive arrangement consisting of a transmitting unit 1 and a receiving unit 2, connected with an optical medium 4.
- the transmitting unit has several, but at least two optical transmitters, of which here by way of example some (3A, 3B, 3C, 3D) are shown as such are designed to be optical information in the optical Can couple medium. These transmitters are arranged that in each case at least one transmitter in the optical Medium coupled.
- the position sensor P determines the position the optical transmitter and signals the stations the Location over an optical medium such that these then their Enable transmit power.
- the transmitting unit includes a selection switch A, which establishes the logical association between the logical signal channels, transmitters and receivers based on the information of the position sensor P.
- the receiving unit 2 includes a plurality of optical receivers (5A, 5B, 5C) with associated optical transmission media (4A, 4B, 4C), some of which are exemplified herein, but at least one for each logical signal channel.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Communication System (AREA)
Description
Die Erfindung bezieht sich auf Vorrichtungen zur optischen Signalübertragung zwischen einer Sendeeinheit und einer relativ dazu beweglichen Empfangseinheit, die über einen der lichtleitenden Körper, hier als optisches Übertragungsmedium bezeichnet, optisch miteinander gekoppelt sind.The invention relates to optical devices Signal transmission between a transmitting unit and a Relatively mobile receiving unit, which has one of the light-conducting body, here as an optical transmission medium referred to, are optically coupled together.
Zur Daten- und Signalübertragung werden häufig optische Systeme eingesetzt. Diese bestehen grundsätzlich aus einer Sendeeinheit und einer Empfangseinheit, die beide über ein optisches Übertragungsmedium miteinander verbunden sind. Ist das optische Übertragungsmedium der freie Raum bzw. Luft so ergibt sich eine lichtschrankenähnliche Anordnung.For data and signal transmission are often optical Systems used. These basically consist of one Transmitting unit and a receiving unit, both via a optical transmission medium are interconnected. is the optical transmission medium the free space or air so results in a light barrier-like arrangement.
Häufiger werden jedoch optische Fasern, wie Glas- oder Kunststofffasern zur Führung des Lichtes eingesetzt. In beiden Fällen ist in der Regel die Entfernung des optischen Weges, zwischen Sende- und Empfangseinheit, konstant. Das bedeutet, dass die Amplitude des Empfangssignals in der Empfangseinheit zeitlich kaum Schwankungen unterworfen ist. Damit ergibt sich eine gleichbleibende Übertragungsqualität.However, more common are optical fibers, such as glass or plastic fibers used to guide the light. In both Cases is usually the removal of the optical path, between transmitting and receiving unit, constant. That means, that the amplitude of the received signal in the receiving unit is hardly subject to fluctuations over time. This results a consistent transmission quality.
Bei Übertragungsstrecken, bei denen die optische Weglänge zwischen Sendeeinheit und Empfangseinheit variiert, kann sich auch der Signalpegel am Empfänger ändern. Dies ist nicht zuletzt eine Folge der Dämpfung der optischen Strecke, woraus eine wechselnde Übertragungsqualität resultieren kann. Dies kann insbesondere bei modernen digitalen Übertragungssystemen, zu einer unerwünschten Zunahme der Bitfehlerrate führen.For transmission links where the optical path length varies between transmitting unit and receiving unit, may vary also change the signal level at the receiver. this is not last a consequence of the attenuation of the optical route, from which a changing transmission quality can result. This especially in modern digital transmission systems, lead to an undesirable increase in the bit error rate.
Ein weiterer Nachteil bei den dem Stand der Technik entnehmbaren optischen Übertragungssystemen ergibt sich aus der endlichen Laufzeit des Lichtes durch das optische Übertragungsmedium. Diese Laufzeit ist abhängig von der Distanz zwischen Sender und Empfänger und variiert in einem Bereich von nahezu Null, wenn sich der Sender in unmittelbarer Nähe zum Empfänger befindet, bis hin zu einem Maximalwert, der sich einstellt, wenn sich der Sender an dem vom Empfänger entfernten Ende des optischen. Mediums befindet.Another disadvantage of the prior art removable Optical transmission systems results from the finite duration of the light through the optical transmission medium. This duration depends on the distance between transmitter and receiver and varies in one area from near zero when the transmitter is in close proximity to the receiver, up to a maximum value occurs when the transmitter is at the receiver distant end of the optical. Medium is located.
Durchläuft der Sender nun alle Positionen ausgehend vom Empfänger bis zum Ende des optischen Mediums, so nimmt die Laufzeit zu. Beim Übergang von dem, dem Empfänger entfernten Ende des optischen Mediums zum Empfänger nahen Medium, durchläuft das Licht die gesamte Länge des optischen Mediums verbunden mit einer langen Laufzeit bis hin zum Empfänger; im darauffolgenden Fall kommt das Licht nahezu ohne Laufzeit zum Empfänger. Dieser abrupte Laufzeitunterschied, der während des Überganges auftreten kann, kann in den übertragenen Signalen einen Phasensprung verursachen. Dieser Phasensprung begrenzt die übertragbare Bandbreite und kann zu Übertragungsfehlern führen.The transmitter now goes through all positions starting from the Receiver to the end of the optical medium, so does the Runtime too. At the transition from the receiver to the remote End of the optical medium to the receiver near medium, passes through the light the entire length of the optical medium associated with a long term to the receiver; in the In the following case, the light comes to almost no runtime Receiver. This abrupt runtime difference, which during the transition can occur in the transferred Signals cause a phase jump. This phase jump limits the transmissible bandwidth and can lead to transmission errors to lead.
Insbesondere bei der Übertragung optischer Signale über ein zu einer geschlossenen Kurve geformtes optisches Übertragungsmedium ist eine Überlappung am Anfang und Ende des optischen Mediums unvermeidbar, sofern kein Ausfall der Übertragung in dieser Position in Kauf genommen werden kann. Damit ergibt sich am Anfang und gleichzeitig am Ende des Mediums im Empfänger eine Überlagerung von zwei Signalen. Das erste Signal erreicht nach kurzer Strecke und damit auch kurzer Zeit den Empfänger. Das zweite Signal erreicht nach dem Durchlaufen einer längeren Strecke und damit mit großer Verzögerung den Empfänger. Beide Signale werden nun überlagert und ergeben ein falsches Summensignal. Damit wird die Übertragung negativ beeinflusst. Insbesondere bei hohen Frequenzen, bei denen die Signallaufzeit gleich der halben Periodendauer ist, ergibt sich eine Auslöschung des Signals. Eine sinnvolle Datenübertragung ist hier nicht mehr möglich.In particular, in the transmission of optical signals via a formed into a closed curve optical transmission medium is an overlap at the beginning and end of the optical medium unavoidable, provided no failure of the Transfer in this position can be accepted. This results at the beginning and at the same time at the end of the Medium in the receiver a superposition of two signals. The first signal reaches after a short distance and thus also short time the receiver. The second signal arrives after passing through a longer distance and thus with a big one Delay the receiver. Both signals are now superimposed and give a wrong sum signal. This will be the Transmission negatively affected. Especially at high Frequencies where the signal propagation time equals half Period is, results in an extinction of the signal. Meaningful data transfer is no longer possible here.
In der EP-A-0 149 280 wird eine Anordnung zur Datenübertragung zwischen zwei relativ zueinander drehbaren Teilen beschrieben. Ein Sender speist Licht in einen hohlzylindrischen und auf der Innenseite verspiegelten Spiegel. Zum Empfang sind wenigstens zwei Empfangswandler vorgesehen, deren Ausgangssignale den Eingängen einer ODER-Schaltung zugeführt sind. Diese Anordnung hat den Nachteil einer Bandbreitenbegrenzung sowie von sehr stark schwankenden Signalamplituden auf Grund der hohen Dämpfung der langen Weglänge der Übertragungsstrecke.EP-A-0 149 280 discloses an arrangement for data transmission between two relatively rotatable parts described. A transmitter feeds light into a hollow cylindrical one and on the inside mirrored mirror. To the reception At least two receiving transducers are provided whose output signals supplied to the inputs of an OR circuit are. This arrangement has the disadvantage of bandwidth limitation as well as very strong signal amplitudes due to the high attenuation of the long path length of the transmission path.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur optischen Signalübertragung zwischen einer Sendeeinheit und einer relativ dazu beweglichen Empfangseinheit, die über ein optisches Übertragungsmedium miteinander gekoppelt sind, derart weiterzubilden, dass die vorgenannten störenden Einflüsse auf die Übertragungsqualität weitgehend ausgeschaltet werden sollen. Insbesondere soll erreicht werden, dass die Übertragungsqualität unabhängig von Relativbewegungen zwischen Sende- und Empfangseinheit sein soll, d.h. dass keine die Datenübertragung störenden Signalüberlappungen am Ort der Empfangseinheit auftreten. Ferner soll die Vorrichtung einen geringen Platz- und Kostenaufwand erfordern und insbesondere für eine breitbandige Signalübertragung geeignet sein.The invention is based on the object, a device for optical signal transmission between a transmitting unit and a relatively movable receiving unit, the over an optical transmission medium are coupled together, in such a way that the aforementioned disturbing influences largely switched off on the transmission quality should be. In particular, it should be ensured that the Transmission quality independent of relative movements between Transmitter and receiver unit, i. that no the data transmission interfering signal overlaps at the place of Receiving unit occur. Furthermore, the device should have a require little space and cost and in particular be suitable for broadband signal transmission.
Die Lösung der Aufgabe ist in dem Anspruch 1 angegeben.
Vorteilhafte Ausführungsformen sind Gegenstand der Unteransprüche.The solution of the problem is specified in the
Es ist eine Vorrichtung nach der Erfindung derart ausgebildet, dass die Empfangseinheit mindestens einen optischen Empfänger besitzt, der einem optischen Übertragungsmedium zugeordnet ist, dessen Länge kürzer bemessen ist als der von einem optischen Sender zurückgelegte Weg relativ zum Übertragungsmedium, und dass die Sendeeinheit wenigstens zwei optische Sender aufweist, die derart in Bewegungslängsrichtung voneinander beabstandet sind, so dass das Licht wenigstens eines optischen Senders in das Übertragungsmedium einkoppelt.It is a device according to the invention designed such that the receiving unit at least one optical Receiver has that of an optical transmission medium whose length is shorter than that of an optical transmitter traveled path relative to the transmission medium, and that the transmitting unit has at least two optical Transmitter, the so in the longitudinal direction of movement spaced apart so that the light at least an optical transmitter coupled into the transmission medium.
Dieser erfindungsgemäße Gegenstand bezieht sich ebenso auf eine optische Signalübertragung zwischen bewegten Teilen. Die Bewegung kann hier kreisförmig, linear oder auf jeder anderen beliebigen Kurve stattfinden, solange eine ausreichende Signaleinkopplung von der Sendeeinheit zum optischen Übertragungsmedium gewährleistet ist. Der Begriff Weglänge der Bewegung bezieht sich bei linear bewegten Teilen auf die Länge des Weges, entlang dem die Sendeeinheit und Empfangseinheit gegeneinander bewegt werden können. Bei kreisförmigen Bewegungen bezieht sie sich auf den entsprechenden Anteil am Umfang des Kreises, maximal jedoch auf den vollen Kreisumfang. Dies gilt auch für jede andere Kurve entlang derer eine Bewegung stattfinden kann.This subject matter of the invention also relates to an optical signal transmission between moving parts. The Movement can be circular, linear, or any other take any curve, as long as a sufficient Signal coupling from the transmitting unit to the optical transmission medium is guaranteed. The term path length of Movement refers to linearly moving parts Length of the path along which the transmitting unit and receiving unit can be moved against each other. In circular Movements refers to the corresponding share of the Circumference of the circle, however, to the full extent of the circle. This also applies to any other curve along one of them Movement can take place.
Um eine einfache und kostengünstige Realisierung der Verstärker in der Empfangseinheit zu ermöglichen, muss die optische Weglänge möglichst kurz gestaltet werden. Zudem muss für eine hohe Übertragungsbandbreite sicher verhindert werden, dass optische Signale mit unterschiedlichen Laufzeiten die Empfangseinheit erreichen.To a simple and inexpensive realization of the amplifier in the receiving unit, the optical Path length be made as short as possible. In addition, for a high transmission bandwidth can be safely prevented optical signals with different maturities the receiving unit to reach.
Durch die kurze Gestaltung des optischen Mediums ist auch im Falle des Empfanges mehrerer Signale mit unterschiedlichen Laufzeiten die Übertragungsbandbreite wesentlich größer, da sie sich umgekehrt proportional zur Länge des optischen Mediums verhält.Due to the short design of the optical medium is also in the Case of receiving multiple signals with different Run times the transmission bandwidth much larger because they are inversely proportional to the length of the optical Medium behaves.
Ein wichtiger Aspekt bei dieser erfindungemäßen Vorrichtung ist, dass optische Sender mit geringem Aufwand und niedrigen Kosten herstellbar sind, während optische Empfänger alleine aufgrund der breitbandigen Verstärker sehr aufwendig und teuer sind.An important aspect of this device according to the invention is that optical transmitter with little effort and low Costs are producible while optical receivers alone due to the broadband amplifier very elaborate and are expensive.
Erfindungsgemäß wird nicht ein optisches Medium eingesetzt, in das auf dem gesamten Weg der Bewegung von einem Sender Licht eingekoppelt werden kann, sondern es wird ein kurzes optisches Medium eingesetzt, das nur einen Teil der Weglänge abdeckt. Damit auf der ganzen Weglänge eine optische Übertragung möglich wird, sind mehrere optische Sender in der Sendeeinheit vorhanden. Diese werden so angeordnet, dass immer mindestens ein optischer Sender das optische Medium beleuchtet. Damit wird eine lückenlose Signalübertragung auf der gesamten Weglänge möglich.According to the invention, an optical medium is not used, in that on the whole way of moving from a transmitter Light can be coupled, but it will be a short used optical medium, which is only part of the path length covers. So that on the whole path length an optical transmission becomes possible, are several optical transmitters in the transmitting unit available. These are arranged so that always at least one optical transmitter illuminates the optical medium. This is a seamless signal transmission on the total path length possible.
In einer besonders vorteilhaften Ausgestaltung der Vorrichtung sind die Empfänger der Empfangseinheit nicht wie üblich am Ende der Teilstücke der optischen Medien, sondern in etwa in der Mitte der Teilstücke der optischen Medien angeordnet. Dadurch sind die Laufzeiten der optischen Signale von beiden Enden des optischen Mediums gleich groß. Es gibt somit keine Überlagerung von optischen Signalen mit unterschiedlichen Laufzeiten, die zu einer Signalverzerrung mit Bahdbreitenbegrenzung führen können. Die optischen Sender der Sendeeinheit werden dann so angeordnet, dass die Abstände zwischen ihnen gerade so groß sind, dass sobald ein Sender ein optisches Medium verlässt, gerade ein zweiter Sender sich auf der anderen Seite diesem optischen Medium nähert. Damit ist eine lückenlose Signalübertragung möglich. Gerade an dieser Stelle koppeln damit zwei optische Sender Licht in das optische Medium ein. Da aber die beiden Wege von den optischen Sendern zum optischen Empfänger der Empfangseinheit gleich groß sind, kommt es zu keinerlei Verzerrungen durch Signallaufzeitunterschiede.In a particularly advantageous embodiment of the device the receivers of the receiving unit are not as usual at the end of the sections of optical media, but roughly arranged in the middle of the sections of the optical media. As a result, the transit times of the optical signals of both Ends of the optical medium the same size. There are no Superposition of optical signals with different Running times leading to a signal distortion with Bahdbreitenbegrenzung being able to lead. The optical transmitters of the transmitting unit are then arranged so that the distances between them are so great that as soon as a transmitter is an optical Medium leaves, just a second transmitter on the other side of this optical medium approaches. This is one seamless signal transmission possible. Especially at this point couple two optical transmitter light into the optical Medium. But there the two ways of the optical transmitters to the optical receiver of the receiving unit are the same size, there is no distortion due to signal propagation time differences.
In einer weiteren vorteilhaften Ausgestaltung dieser Erfindung enthält die Empfangseinheit mehrere optische Empfänger die jeweils mit einem optischen Medium verbunden sind. Die Empfangseinheit ist derart gestaltet, dass die Signale der optischen Empfänger miteinander verknüpft werden, so dass ein höherer Signalpegel oder eine höhere Zuverlässigkeit durch Redundanz erreicht werden kann. Ebenso könnten auch die Signale von mehreren optischen Empfängern addiert werden, um insgesamt einen höheren Signalpegel und geringeres Rauschen zu erhalten. Ebenso können mehrere Signale zusammengefasst werden, um eine redundante Übertragung zu ermöglichen, so dass beim Ausfall eines Senders, eines optischen Mediums oder auch eines Empfängers die Übertragung über einen anderen Weg immer noch möglich ist.In a further advantageous embodiment of this invention the receiving unit contains several optical receivers each connected to an optical medium. The Receiving unit is designed such that the signals of the optical receivers are linked together so that a higher signal level or higher reliability Redundancy can be achieved. Likewise, the Signals from several optical receivers can be added to overall a higher signal level and less noise to obtain. Likewise, several signals can be combined to enable redundant transmission, so that in case of failure of a transmitter, an optical medium or also a receiver's transmission over another way still possible.
Eine andere Ausgestaltung betrifft eine Anordnung, bei der die Sendeeinheit einen Positionssensor enthält. Dieser Positionssensor stellt fest, welcher optische Sender sich gerade über einem optischen Medium befindet. Dies wird dem entsprechenden optischen Sender signalisiert. Dadurch kann der optische Sender die volle Sendeleistung aktivieren und optische Signale übertragen. Verlässt er den Bereich des optischen Mediums, so wird ihm das Verlassen signalisiert und er kann seine Sendeleistung reduzieren oder auch ganz abschalten. Mit dieser Anordnung wird die gesamte Leistungsaufnahme des Übertragungssystems verringert. Durch das Ausschalten der Sender erhöht sich auch deren Lebensdauer und die Erzeugung von elektromagnetischen Störungen in den leistungsstarken Sendetreibern wird reduziert.Another embodiment relates to an arrangement in which the transmitting unit contains a position sensor. This position sensor Determines which optical transmitter is watching located above an optical medium. This will be the corresponding one optical transmitter signals. This allows the optical transmitters activate the full transmit power and optical Transmit signals. He leaves the area of the optical Medium, he is signaled to leave and he can reduce its transmission power or even completely switch off. With this arrangement, the total power consumption of the transmission system is reduced. By switching off the Transmitter also increases their life and production of electromagnetic interference in the powerful Transmission drivers are reduced.
In einer weiteren vorteilhaften Ausgestaltung erhält die
Empfangseinheit mehrere unabhängige optische Empfänger mit
einem eigenen optischen Medium. Die Sendeeinheit besitzt
mindestens so viele optische Sender, wie Signalkanäle vorhanden
sind. Die Sendeeinheit und/oder die Empfangseinheit ist
nun so gestaltet, dass sie zusätzlich einen Auswahlschalter
enthält, der über einen Positionssensor gesteuert wird. Der
Positionssensor teilt dem Auswahlschalter mit, welcher optische
Sender gerade Signale über das optische Medium und den
zugeordneten Empfänger an einem bestimmten logischen Signalkanal
übertragen kann. Wichtig ist, dass jeder Signalkanal
über einen definierten Weg übertragen wird. Der Übertragungsweg
kann je nach Position von Sende- und Empfangseinheit
variieren. Es muss nur sichergestellt werden, dass z. B. die
Signale des Kanals 1 auf der Seite der Sendeeinheit auch zum
Kanal 1 auf der Seite der Empfangseinheit übertragen werden.In a further advantageous embodiment receives the
Receiving unit with multiple independent optical receiver with
a separate optical medium. The transmitting unit has
at least as many optical transmitters as signal channels present
are. The transmitting unit and / or the receiving unit is
now designed so that they also have a selector switch
contains, which is controlled by a position sensor. Of the
Position sensor tells the selector switch which optical
Transmitter just signals over the optical medium and the
associated receiver on a particular logical signal channel
can transfer. It is important that every signal channel
is transmitted via a defined path. The transmission path
may vary depending on the position of the transmitting and receiving unit
vary. It only has to be ensured that z. B. the
Signals of the
Die Funktionsweise soll hier noch einmal anhand eines einfachen
Beispiels, bei dem ein Auswahlschalter auf der Seite der
Sendeeinheit vorhanden ist, dargestellt werden. Befindet sich
z. B. der Sender 1 über dem Empfänger 1, so wird auch der
logische Signalkanal 1 vom Auswahlschalter an den Sender 1
durchgeschaltet. Bewegt sich die Vorrichtung nun ein Stück
weiter, so wird zu einem späteren Zeitpunkt der Sender 2 auf
dem Empfänger 1 stehen. Nun schaltet der Auswahlschalter die
Signale des Signalkanals 1 auf den Sender 2, so dass dieser
seine Signale wieder zum Empfänger 1 übertragen kann. Bewegt
sich die ganze Anordnung wiederum ein Stück weiter, so liegt
zu einem späteren Zeitpunkt Sender 3 über dem Empfänger 1.
Nun wird der Auswahlschalter den Signalkanal 1 auf den Sender
3 schalten, so dass dieser wieder Signale zum Empfänger 1
übermitteln kann. Das entsprechende Schema gilt für alle
anderen Sender, Empfänger und Signalkanäle ebenso.The functionality should here again by means of a simple
For example, a selector switch on the side of the
Sender unit is present, are displayed. Is located
z. As the
In einer weiteren Ausgestaltung wird als Übertragungsmedium eine lichtleitende Faser eingesetzt. Diese Faser kann entsprechend dem Stand der Technik als Glasfaser, Kunststofffaser oder Faser aus einem anderen lichtleitenden Material ausgebildet sein. Weiterhin kann das Übertragungsmedium ein lichtleitender Formkörper sein. Ebenso ist eine lichtleitende Flüssigkeit als Übertragungsmedium einsetzbar.In a further embodiment, the transmission medium used a photoconductive fiber. This fiber can work accordingly the prior art as glass fiber, plastic fiber or fiber of another photoconductive material be educated. Furthermore, the transmission medium can be light-guiding molding. Likewise is a light-conducting Liquid used as a transmission medium.
Einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung liegt die Idee zugrunde, die Lichtstrahlausbreitung innerhalb des optischen Übertragungsmediums derart zu gestalten, dass sich entweder optische Signale auf unterschiedlichen Wegen innerhalb des Übertragungsmediums in der Weise ausbreiten, dass sie am Ort der Empfangseinheit zu gleichen Zeiten ankommen, so dass sie zu einem einzigen Signal zusammengesetzt werden können, oder dass das Übertragungsmedium in einer Weise ausgebildet ist, dass für eine getrennte räumliche Signalübertragung der einzelnen Lichtsignale gesorgt ist, um Signalüberlappungen zu vermeiden.A further embodiment of the device according to the invention The idea is based on the light beam propagation within the optical transmission medium in such a way that either optical signals on different Because of within the transmission medium in the way spread that they are the same at the place of the receiving unit Times arrive so that they are put together into a single signal or that the transmission medium is in a way that is designed for a separate spatial Signal transmission of the individual light signals is ensured to avoid signal overlaps.
Eine weitere vorteilhafte Ausgestaltung besteht darin, dass im Falle einer linearen Bewegung zwischen Sendeeinheit und Empfangseinheit das Übertragungsmedium ebenfalls linear ausgebildet ist, und vorzugsweise parallel zur Bewegungsrichtung angeordnet ist. A further advantageous embodiment is that in the case of a linear movement between transmitting unit and Receiving unit, the transmission medium also linear is formed, and preferably parallel to the direction of movement is arranged.
Eine weitere vorteilhafte Ausgestaltung besteht darin, dass im Falle einer kreisförmigen Bewegung zwischen Sendeeinheit und Empfangseinheit das Übertragungsmedium ebenfalls kreisförmig ausgebildet ist, und vorzugsweise parallel zur Bewegungsrichtung angeordnet ist.A further advantageous embodiment is that in the case of a circular movement between the transmitting unit and receiving unit, the transmission medium also circular is formed, and preferably parallel to the direction of movement is arranged.
Ferner kann das Übertragungsmedium aus einer kreisförmig angeordneten Lichtleitfaser bestehen, die mit einem Fluoreszenzfarbstoff dotiert ist. Durch diese Dotierung kann Licht an beliebiger Stelle der Faser eingekoppelt werden.Furthermore, the transmission medium from a circular arranged optical fiber consisting of a fluorescent dye is doped. By this doping can light be coupled at any point of the fiber.
In einer weiteren Ausgestaltung ist das Übertragungsmedium wenigstens an einer Stelle unterbrochen, von der aus die Laufzeiten der optischen Signale in beiden Richtungen des Übertragungsmediums zur Empfangseinheit gleich groß sind.In a further embodiment, the transmission medium interrupted at least at one point, by deriving the transit times of the optical signals in both directions the transmission medium to the receiving unit equal are big.
Dieser Vorrichtung liegt die Idee zugrunde, dass eine gewünschte Unabhängigkeit der Bandbreite von den Signallaufzeiten nur dann erreicht werden kann, wenn verhindert wird, dass Signale auf mehreren Wegen mit unterschiedlichen Laufzeiten den Empfänger erreichen. Dies bedeutet, dass die Unabhängigkeit der Bandbreite von den Signallaufzeiten gewährleistet ist, sofern nur ein einziges Signal den Empfänger erreicht. Dies ist z.B. bei einer linearen Strecke der Fall. Ebenso kann eine Unabhängigkeit erreicht werden, wenn mehrere Signale am Empfänger eintreffen, aber alle Signale gleiche Laufzeiten zum Empfänger besitzen.This device is based on the idea that a desired independence of bandwidth from the Signal propagation times can only be achieved if prevented is that signals in different ways with different Runtime reach the recipient. This means that the independence of the bandwidth from the signal delays guaranteed, provided that only a single signal is the receiver reached. This is e.g. at a linear distance the Case. Similarly, independence can be achieved if several signals arrive at the receiver, but all signals have the same terms to the receiver.
Eine weitere Ausgestaltung ergibt sich indem die Faser mit einem fluoreszierenden Farbstoff dotiert ist, so dass die Einkopplung von Licht an jeder Position der Sendeeinheit entlang der Kurve in die Faser besonders einfach wird. Another embodiment results from the fiber with doped with a fluorescent dye, so that the Coupling of light at each position of the transmitting unit becomes particularly easy along the curve in the fiber.
Die Erfindung wird nachstehend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen exemplarisch beschrieben. Es zeigen:
- Fig. 1
- Schematisierte Darstellung einer erfindungsgemäßen Grundanordnung,
- Fig. 2
- erfindungsgemäße Vorrichtung mit mehreren Empfangseinheiten,
- Fig. 1
- Schematized representation of a basic arrangement according to the invention,
- Fig. 2
- Inventive device with several receiving units,
Figur 1 zeigt eine erfindungsgemäße Anordnung bestehend aus
einer Sendeeinheit 1 sowie einer Empfangseinheit 2, verbunden
mit einem optischen Medium 4. Die Sendeeinheit besitzt mehrere,
mindestens jedoch zwei optische Sender, von denen hier
beispielhaft einige dargestellt sind (3A, 3B, 3C, 3D), die so
gestaltet sind, dass sie optische Informationen in das optische
Medium einkoppeln können. Diese Sender sind so angeordnet,
dass jeweils mindestens ein Sender in das optische
Medium einkoppelt. Der Positionssensor P ermittelt die Position
der optischen Sender und signalisiert den Sendern die
Lage über einem optischen Medium derart, dass diese dann ihre
Sendeleistung aktivieren können.Figure 1 shows an inventive arrangement consisting of
a transmitting
Figur 2 zeigt eine beispielhafte Ausgestaltung.
Hierin enthält die Sendeeinheit einen Auswahlschalter A, der
aufgrund der Informationen des Positionssensors P die logische
Zuordnung zwischen den logischen Signalkanälen, Sendern
und Empfängern herstellt. Die Empfangseinheit 2 enthält
mehrere optische Empfänger (5A, 5B, 5C), mit zugeordneten
optischen Übertragungsmedien (4A, 4B, 4C), von den hier beispielhaft
einige dargestellt sind, jedoch mindestens eines
für jeden logischen Signalkanal.Figure 2 shows an exemplary embodiment.
Herein, the transmitting unit includes a selection switch A, which establishes the logical association between the logical signal channels, transmitters and receivers based on the information of the position sensor P. The receiving
Claims (7)
- Device for optical transmission of signals between a transmitting unit (1) and a receiving unit (2) which are movable relative to each other and coupled with each other via an optical transmission medium (4);
characterized in that
the receiving unit has at least one optical receiver (5A, 5B, 5C) assigned to an optical transmission medium of a length that is dimensioned to be shorter than the path length of the movement; that the transmitting unit has at least two optical transmitters that are spaced from each other along the movement direction so that the light from at least one optical transmitter couples into the optical transmission medium; and that the optical transmission medium is designed to be a light-guiding fibre, a light-guiding fibre doped with a fluorescent dye, a light-guiding shaped body, or a light-guiding liquid. - Device according to claim 1,
characterized in that
the optical receiver is disposed in the middle of the optical transmission medium, so that the transit times of the optical signals from both ends of the optical transmission medium are equal. - Device according to claim 1 or 2,
characterized in that
the optical transmitters of the transmitting unit are spaced from each other so that as soon as a transmitter leaves the optical transmission medium owing to the movement, another transmitter instantly approaches the other side of the optical transmission medium and therewith continues the transmission of data. - Device according to any one of claims 1 to 3,
characterized in that
the transmitting unit has a position sensor (P) that generates an activation signal for those optical transmitters which at that instant are located in the vicinity of an optical transmission medium. - Device according to any one of claims 1 to 4,
characterized in that
a plurality of receiving units are provided for different signal channels, a multitude of optical transmitters being disposed above each of the receiving units; and that in each of the transmitting and/or receiving units a position sensor (P) and a selector switch (A) are provided, the selector switch being controlled via the position sensor so that multiple-channel, position-independent signal transmission is possible. - Device according to any one of claims 1 to 5,
characterized in that
the optical transmission medium is designed to be linear, and in the case of a linear movement between transmitting unit and receiving unit is preferably disposed to be parallel to this direction of movement. - Device according to any one of claims 1 to 5,
characterized in that
the optical transmission medium is designed to be circular, and in the case of a circular movement between transmitting unit and receiving unit is preferably disposed to be parallel to this direction of movement.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19543387 | 1995-11-21 | ||
| DE19543387A DE19543387C1 (en) | 1995-11-21 | 1995-11-21 | Optical signal transmission device |
| DE19543386A DE19543386C1 (en) | 1995-11-21 | 1995-11-21 | Wideband optical signal transmission device |
| DE19543386 | 1995-11-21 | ||
| DE19543385 | 1995-11-21 | ||
| DE19543385A DE19543385C1 (en) | 1995-11-21 | 1995-11-21 | Mobile optical signal transmitter |
| PCT/DE1996/002223 WO1997019529A1 (en) | 1995-11-21 | 1996-11-21 | Device for the optical transmission of signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0862820A1 EP0862820A1 (en) | 1998-09-09 |
| EP0862820B1 true EP0862820B1 (en) | 2005-04-06 |
Family
ID=27215682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96942260A Expired - Lifetime EP0862820B1 (en) | 1995-11-21 | 1996-11-21 | Device for the optical transmission of signals |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6650843B1 (en) |
| EP (1) | EP0862820B1 (en) |
| AU (1) | AU1138297A (en) |
| DE (1) | DE59611213D1 (en) |
| WO (1) | WO1997019529A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19625870A1 (en) * | 1996-06-27 | 1998-01-08 | Schleifring & Apparatebau Gmbh | Device for receiving optical signals with a light-guiding object |
| US6246810B1 (en) | 1998-06-16 | 2001-06-12 | Electro-Tec Corp. | Method and apparatus for controlling time delay in optical slip rings |
| US6757494B2 (en) * | 2000-12-22 | 2004-06-29 | Nortel Networks Limited | Wavelength routing in a photonic network |
| DE10245450B4 (en) * | 2002-09-27 | 2018-06-14 | Schleifring Gmbh | Apparatus and method for transmitting digital signals between variable rate mobile units |
| DE10260940B3 (en) * | 2002-12-20 | 2004-11-25 | Schleifring Und Apparatebau Gmbh | Device and method for broadband transmission of digital optical signals between movable units |
| US7599467B2 (en) * | 2004-06-03 | 2009-10-06 | Siemens Aktiengesellschaft | Device for contact-free transmission of signals and measured data in a computed tomography apparatus |
| DE102005027632B4 (en) * | 2005-03-31 | 2009-09-24 | Schleifring Und Apparatebau Gmbh | Multi-channel data transmission system for computer tomographs |
| DK2270570T3 (en) | 2006-04-28 | 2014-09-15 | Moog Inc | Optical reflector devices for use in optical rotary joints |
| US8267598B2 (en) * | 2006-12-06 | 2012-09-18 | Motorola Mobility Llc | Point to point optical communication system for conveying signals between multiple housings of a device |
| US7672594B2 (en) * | 2006-12-06 | 2010-03-02 | Motorola, Inc. | Optical communication system with light guide having variable slidable point of entry or exit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2846526A1 (en) * | 1978-10-25 | 1980-05-08 | Siemens Ag | DEVICE FOR TRANSMITTING SIGNALS |
| DE3400361A1 (en) * | 1984-01-07 | 1985-07-18 | Philips Patentverwaltung Gmbh, 2000 Hamburg | ARRANGEMENT FOR DATA TRANSFER BETWEEN TWO RELATIVELY ROTATING PARTS |
| FR2600879A1 (en) * | 1986-07-07 | 1988-01-08 | Thomson Csf | COMPUTER - ASSISTED TOMOGRAPHY APPARATUS. |
-
1996
- 1996-11-21 US US09/068,932 patent/US6650843B1/en not_active Expired - Fee Related
- 1996-11-21 WO PCT/DE1996/002223 patent/WO1997019529A1/en active IP Right Grant
- 1996-11-21 DE DE59611213T patent/DE59611213D1/en not_active Expired - Fee Related
- 1996-11-21 AU AU11382/97A patent/AU1138297A/en not_active Abandoned
- 1996-11-21 EP EP96942260A patent/EP0862820B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59611213D1 (en) | 2005-05-12 |
| US6650843B1 (en) | 2003-11-18 |
| AU1138297A (en) | 1997-06-11 |
| WO1997019529A1 (en) | 1997-05-29 |
| EP0862820A1 (en) | 1998-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69915307T2 (en) | BIDIRECTIONAL DISPERSION COMPENSATION DEVICE | |
| EP0862820B1 (en) | Device for the optical transmission of signals | |
| DE102007020013B4 (en) | Device for transmitting data | |
| DE102019118531A1 (en) | Communication system | |
| DE10310134B3 (en) | Optical signal coupling | |
| DE3045315A1 (en) | RING-SHAPED, IN PARTICULAR OPTICAL, DATA TRANSFER SYSTEM WITH SWITCHABLE TRANSMISSION DIRECTION | |
| EP0349766A2 (en) | Optical information transmission system, especially in the subscriber connection field | |
| EP1867073B1 (en) | Multi-channel data transfer system for computer tomographs | |
| DE19651236A1 (en) | Device for coupling and decoupling optical signals from two transmission channels | |
| WO2020245049A2 (en) | Wireless optical communication network and apparatus for wireless optical communication | |
| EP0450524A2 (en) | Optical transmission system with a fiber optic amplifier | |
| DE10353891B4 (en) | Arrangement for data transmission between a stationary and a movable component | |
| DE69322962T2 (en) | METHOD FOR SUBSCRIBER CONNECTION AND SUBSCRIBER NETWORK | |
| EP0073314B1 (en) | Transmission system for the multiple bidirectional use of an optical fibre | |
| DE102019118532A1 (en) | Communication system | |
| EP0874482B1 (en) | Arrangement for transmitting and receiving optical signals | |
| DE19823587A1 (en) | Optical connection and connection unit for exchanging data between devices | |
| DE19543387C1 (en) | Optical signal transmission device | |
| DE19543385C1 (en) | Mobile optical signal transmitter | |
| EP2072011B1 (en) | Assembly made from two elements which are rotatable relative to one another | |
| DE102005010805B4 (en) | Device for transmitting modulated optical signals generated by an optical transmitter | |
| EP1672400B1 (en) | Optical rotary joint | |
| DE10222744B4 (en) | Device for optical signal transmission between units movable along circular paths | |
| EP0378087B1 (en) | Wideband optical transmission system, especially for the subscriber region | |
| EP1094620B1 (en) | Communication system for area with restricted reception capacities |
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: 19980616 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
| 17Q | First examination report despatched |
Effective date: 20021128 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| 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 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REF | Corresponds to: |
Ref document number: 59611213 Country of ref document: DE Date of ref document: 20050512 Kind code of ref document: P |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050421 |
|
| 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: 20060110 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20081128 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20081118 Year of fee payment: 13 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20081121 Year of fee payment: 13 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20091121 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100730 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20091130 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100601 |
|
| 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: 20091121 |