EP0327834B1 - Récepteur d'appel pour un réseau d'appel de personnes - Google Patents

Récepteur d'appel pour un réseau d'appel de personnes Download PDF

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Publication number
EP0327834B1
EP0327834B1 EP89100677A EP89100677A EP0327834B1 EP 0327834 B1 EP0327834 B1 EP 0327834B1 EP 89100677 A EP89100677 A EP 89100677A EP 89100677 A EP89100677 A EP 89100677A EP 0327834 B1 EP0327834 B1 EP 0327834B1
Authority
EP
European Patent Office
Prior art keywords
message
unit
paging receiver
receiver
paging
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
EP89100677A
Other languages
German (de)
English (en)
Other versions
EP0327834A1 (fr
Inventor
Helmut Köchler
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.)
Erika Kochler Firma
Original Assignee
Erika Kochler Firma
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 Erika Kochler Firma filed Critical Erika Kochler Firma
Priority to AT89100677T priority Critical patent/ATE88291T1/de
Publication of EP0327834A1 publication Critical patent/EP0327834A1/fr
Application granted granted Critical
Publication of EP0327834B1 publication Critical patent/EP0327834B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/222—Personal calling arrangements or devices, i.e. paging systems
    • G08B5/223—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B5/224—Paging receivers with visible signalling details
    • G08B5/228—Paging receivers with visible signalling details combined with other devices having a different main function, e.g. watches
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/222—Personal calling arrangements or devices, i.e. paging systems
    • G08B5/223—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B5/224—Paging receivers with visible signalling details

Definitions

  • the invention relates to a portable call receiver for a paging network with a number of base stations for transmitting radio call messages which can be input via the telephone network and which can be received and displayed by the call receiver.
  • Such paging networks can be constructed, for example, as local or nationwide systems which transmit signals to small, portable radio paging receivers via radio stations or so-called base stations in order to expand the telephone network.
  • simple call signals can be transmitted to the receiver, but also numbers such as a telephone number to be called by the carrier, the telephone number of the caller himself or other messages.
  • the devices serving as call receivers are designed in such a way that they can reliably receive the radio signals of the base stations at a high transmission speed and can recognize and output the message transmitted therein.
  • the miniaturization for the call recipient thus reaches limits which are roughly the size of a cigarette packet.
  • the call recipient is therefore stowed by the carrier, for example in a breast pocket or on the waistband or worn on a strap.
  • the task thus arises of designing a call receiver in two parts in such a way that the carrier person can immediately take note of the corresponding message in response to a call signal and without special manipulations, a risk of loss of the message being avoided.
  • the intermediate storage of the message in the first part of the device offers several important advantages: the first, larger part of the device can thus be configured as before, ie as a call receiver that functions on its own, before it is forwarded.
  • the message can also be output in the form of a wristwatch on the display panel of the second part of the device.
  • the first part of the device works as a kind of relay station and message memory between the base stations and the second part of the device.
  • the transmission speed or bit rate can be reduced in such a way that the transmission devices can be designed in a simple manner. If the local transfer of the message is not successful, it can be repeated.
  • the paging network is composed of essentially the following components.
  • a paging terminal 14 which represents the link between the public telephone network 13 and the paging system, the subscriber data is managed and the incoming calls are converted into serial data streams suitable for the paging system in the so-called POCSAG format.
  • a network control unit (paging network unit) 15 is connected to the paging center and collects a certain number of calls in each case to form a data packet. Each data packet is encoded accordingly and made available for further transmission. The calls are then temporarily saved for transmission after approx. 30 seconds.
  • the network control unit is also responsible for the synchronous transmission of the radio calls. For this purpose, it stamps each paging with a time stamp that defines the time of its transmission.
  • a plurality of locally distributed transmitter group control units (transmitters group controllers) 16 are connected to the network control unit (via telephone lines). These transmitter group control units distribute the data packets that they receive from the network control unit to the actual paging transmitter or base stations.
  • the calls are forwarded by radio from the base stations to the receivers. They are distributed locally so that the radio calls are broadcast across the board.
  • the base stations have an interface (transmitter site interface) 18, which is provided for the intermediate storage of the calls and for the synchronous transmission of each call according to its time stamp by the associated transceiver (transmitter).
  • the call receivers (paging receivers) 19, 20 are carried by the subscribers and receive the radio calls intended for them.
  • the radio signals emitted by the various base stations can overlap at certain locations due to the area-wide radiation. There, interference-free reception is only possible if the radio signals from different base stations are available at the same time, i.e. synchronous.
  • the clocks of the base stations are periodically compared. This is done in that the base stations 17 establish radio communication with one another and equate their clocks on the basis of synchronization messages sent to one another.
  • the synchronization takes place in accordance with a synchronization command from the network control unit 15, which is transmitted to all base stations via a telephone line.
  • the synchronization process itself is described in detail in the aforementioned European Patent Publication No. A-198 448.
  • the call receiver has a first device part 19 and a second device part 20.
  • the first device part 19 is formed by a call receiver of a conventional type and is approximately the size of a cigarette packet. It receives the radio signal of the base stations 17, which is transmitted in radio frequency, at a high bit rate. Furthermore, the first serves Device part as a relay station for the second device part, to which it transmits the received and temporarily stored message over a short distance. While the miniaturization of the first device part 19 is limited due to the explained function, only miniaturizable elements are contained in the second device part 20. It is preferably designed in the form of a wristwatch.
  • the transmission distance between the two parts of the device which are carried by the wearer can therefore be limited essentially to the human body mass.
  • the range of the transmission device therefore need not exceed 2 to 3 m.
  • a simple receiver with a relatively low sensitivity can therefore be used in the second part of the device, since the bit rate of the transmission can also be reduced.
  • the second device part 20, designed as a wristwatch has in particular an LC display matrix 23 on which numbers and letters can be displayed and which forms a time display in the absence of a call message.
  • FIG. 2 shows the circuit structure from the interface 18 of a base station 17 to the second device part of the paging receiver.
  • the base station 17 has a radio frequency transmitter 4 and a corresponding receiver 5.
  • the transmitter 4 and the receiver 5 are connected to a bus 7 via an interface circuit 6.
  • a memory 8, timer circuits 9 and a microprocessor 10 as well as a control circuit 11, which is connected to a modem 12, which establishes the connection to the signal source for the call messages to be transmitted, are also located on the bus 7.
  • the blocks shown below the dash-dotted line form the interface (transmitter site interface) 18 of the base station.
  • the interface 6 controls the Microprocessor 10 the transmitter 4 and the receiver 5 of the base station.
  • the radio calls emitted in radio frequency are received by the selected call receiver 19 or 20.
  • the radio calls are transmitted in serial form according to the POCSAG code with a transmission speed of 512 baud.
  • the carrier frequency is 146.325 MHz.
  • the first device part 19 For reception, the first device part 19 has a corresponding battery-powered receiver 24, which is connected to a processor 25 for processing and storing the received message.
  • the processor 25 has an EPROM program memory 26 and a RAM data memory 27 in a known manner.
  • the first device part 19 also has an LC display matrix 21 for the visual output of the received message and an acoustic signal generator 29.
  • the first device part For local forwarding of the message to the second device part, the first device part has a transmitter 30 with a short range. This interacts with a receiver 31 in the second part of the device.
  • the transmission is preferably inductive. However, other locally acting transmission methods can also be used.
  • a receiver 31 is provided for receiving the locally transmitted message. Thanks to its relatively low sensitivity, this can be constructed simply.
  • a processor 32 designed as a display control and time keeping circuit is connected to the receiver 31.
  • the processor 32 processes the received message and outputs it on a display 23 designed as an LC matrix, which is arranged in the dial area of the clock (cf. FIG. 1). It is also connected to a quartz oscillator 33, which serves as a time reference.
  • a memory 34 is intended for the temporary storage of the message to be displayed. If a locally forwarded message arrives at the receiver 31 and is stored, the processor 32 switches the LC matrix 23 from the time display to the display of the stored message.
  • the first device part 19 can be used by itself as a portable call receiver.
  • the transmission of the message to the second device part can be configured via a switch 22 (shown schematically).
  • the second device part 20 enables an extension of the call message transmission from the telephone network to a miniaturized receiver device that can therefore be installed in a clock.
  • the second part of the device also functions as a clock and display independently of the first part of the device.
  • messages can be entered by the wearer himself into the memory 34 of the second device part via a suitable, separate input unit 40 and displayed there as a function of time (cf. FIG. 3).
  • the input unit 40 has an input keyboard 41 as well as a display 44 and a buffer 45 for inputting a message, which can be combined with a time.
  • This message is fed to an inductive transmitter 43 via a microprocessor 42 and is thus transmitted to the second device part 20. The message can be displayed there at the specified time.
  • the operation of the devices described when receiving a call message is now as follows: In the first device part 19, the call message transmitted at a high bit rate is received and temporarily stored in the RAM memory 27. If the first device part 19 is operated alone, after the call message has been buffered, it is output on the display 28 of the first device part 19.
  • An acoustic call signal from the signal generator 29 alerts the wearer to the presence of a message that is visible on the display matrix 28. This mode is used if there is no need for expansion. The electrical power required for local onward transmission can thus be saved and the batteries of the first part of the device can be protected.
  • the process for the first part of the device is essentially the same.
  • the message temporarily stored in the RAM data memory 27 is forwarded to the second device part 20 in the form of a wristwatch in a second, local transmission method. Because of the temporary storage in the first device part 19, there must be no direct temporal connection between the receipt of the message in the first device part 19 and its forwarding to the second device part 20.
  • the signal generator 29 of the first device part 19 emits an acoustic call signal. The wearer thus knows that on the second device part 20, i.e. a call should appear on the watch.
  • the wearer does not find any indication on the display 23 of the second device part 20, ie the wristwatch, after the acoustic call signal of the first device part 19, for example because the local transmission has not been carried out correctly, the call message is not lost. It is temporarily stored in the first device part 19 and is also displayed there. The In this case, the bearer can still take the call message from the first device part 19.
  • the local forwarding takes place by a few, e.g. Delayed 2 seconds
  • the delayed retransmission can also be a second transmission.
  • the wearer can use the second device part 20, i.e. the wristwatch, briefly approach the first device part 19, which can increase the security of transmission. Since the second device part 20 is designed as a wristwatch, the wearer only has to briefly move the arm near a breast or trouser pocket and can then take the message from the display 23 or call it up later.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Claims (10)

  1. Récepteur de communication portatif pour un réseau d'appel de personnes comportant un certain nombre de stations de base (17) destinées à émettre des appels radio pouvant être enregistrés par l'intermédiaire du réseau téléphonique et reçus et affichés par le récepteur (19, 20), celui-ci comportant une première partie ainsi qu'une seconde partie séparée de cette première partie, caractérisé en ce que la première partie (19) comporte un dispositif récepteur (24) pour les appels radio ainsi qu'une mémoire (27) pour l'appel, que la seconde partie (20) comporte un organe d'affichage (23) pour l'appel, les deux parties (19, 20) comportant un ensemble de transmission (30, 31) à courte portée avec un émetteur (30) dans la première partie et un récepteur (31) dans la seconde partie pour transmettre à la seconde partie, sans fil et au besoin de façon répétée, l'appel enregistré dans la mémoire (27) de la première partie.
  2. Récepteur portatif selon la revendication 1, caractérisé en ce que la seconde partie (20) est réalisée sous forme d'une montre-bracelet comportant une plage d'affichage (23) pour afficher l'appel.
  3. Récepteur portatif selon une des revendications précédentes, caractérisé en ce que la première partie (19) comprend une plage d'affichage (21) pour afficher l'appel, ainsi qu'un dispositif d'appel acoustique (29).
  4. Récepteur portatif selon la revendication 3, caractérisé en ce que la première partie (19) peut être commutée entre deux modes de fonctionnement, l'affichage n'ayant lieu que sur la première partie dans le premier mode et également sur la seconde partie (20) dans le second mode.
  5. Récepteur portatif selon une des revendications précédentes, caractérisé en ce qu'après réception de l'appel radio et mémorisation de l'appel la mémoire (27) de la première partie (19) peut être connectée à l'émetteur (30).
  6. Récepteur portatif selon la revendication 3, caractérisé en ce que la première partie (19) comporte un circuit de commande (25) capable d'actionner l'émetteur (30), de manière à ce que l'appel soit retransmis à la seconde partie (20) par l'émetteur (30) après sa réception et sa mémorisation dans la mémoire (27) de la première partie (19).
  7. Récepteur portatif selon la revendication 6, caractérisé en ce que le circuit de commande (25) est agencé pour déclencher une retransmission répétée de l'appel par l'émetteur (30).
  8. Récepteur portatif selon une des revendications 6 et 7, caractérisé en ce que le circuit de commande (25) est agencé pour actionner le dispositif acoustique d'appel (29) avant ou lors de la retransmission effectuée par l'émetteur (30).
  9. Récepteur portatif selon une des revendications précédentes, une unité d'entrée (40) séparée étant prévue pour la seconde partie, caractérisé en ce que cette unité d'entrée comporte un clavier d'entrée (41) pour introduire un message pouvant être transmis par une unité de transmission (43) à courte portée vers la seconde partie (19) et y être affiché.
  10. Récepteur portatif selon une des revendications précédentes, caractérisé en ce que la seconde partie comporte un circuit d'horloge (32, 33) et qu'un signal horaire peut être affiché sur l'organe d'affichage.
EP89100677A 1988-01-21 1989-01-17 Récepteur d'appel pour un réseau d'appel de personnes Expired - Lifetime EP0327834B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89100677T ATE88291T1 (de) 1988-01-21 1989-01-17 Rufempfaenger fuer ein personenrufnetz.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH227/88 1988-01-21
CH227/88A CH674287A5 (fr) 1988-01-21 1988-01-21

Publications (2)

Publication Number Publication Date
EP0327834A1 EP0327834A1 (fr) 1989-08-16
EP0327834B1 true EP0327834B1 (fr) 1993-04-14

Family

ID=4182180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100677A Expired - Lifetime EP0327834B1 (fr) 1988-01-21 1989-01-17 Récepteur d'appel pour un réseau d'appel de personnes

Country Status (5)

Country Link
EP (1) EP0327834B1 (fr)
JP (1) JPH01288025A (fr)
AT (1) ATE88291T1 (fr)
CH (1) CH674287A5 (fr)
DE (1) DE58904031D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247332A (en) * 1990-08-25 1992-02-26 Racal Vodapage Limited Display system
DE4328867C2 (de) * 1993-08-27 1995-07-13 Blumenbecker B & M Gmbh Transportable Vorrichtung zum Aussenden von Bestätigungssignalen
US5666159A (en) 1995-04-24 1997-09-09 Eastman Kodak Company Electronic camera system with programmable transmission capability
GB2356073A (en) * 1999-11-03 2001-05-09 Central Research Lab Ltd Portable data system
JP3750910B2 (ja) 1999-12-13 2006-03-01 セイコーインスツル株式会社 情報処理装置及び情報処理方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH346140A (de) * 1957-01-19 1960-04-30 Autophon Ag Tragbarer Rufempfänger
US3937004A (en) * 1973-05-28 1976-02-10 Citizen Watch Co., Ltd. Portable miniature type information treating device
DE2606691C3 (de) * 1976-02-19 1979-05-03 Bjoern 3100 Celle Bluethgen Nachrichtenkommunikationssystem, insbesondere Personenrufsystem
DE2918531A1 (de) * 1979-05-08 1980-11-13 Provera Gmbh Elektronische uhr, insbesondere armbanduhr, mit alarmvorrichtung
FR2532091A1 (fr) * 1982-05-14 1984-02-24 Tolle Marie Claude Transmetteur de messages visuels
US4758836A (en) * 1983-06-20 1988-07-19 Rockwell International Corporation Inductive coupling system for the bi-directional transmission of digital data
JPS62181535A (ja) * 1986-02-05 1987-08-08 Nec Corp 無線情報表示システム

Also Published As

Publication number Publication date
EP0327834A1 (fr) 1989-08-16
ATE88291T1 (de) 1993-04-15
JPH01288025A (ja) 1989-11-20
DE58904031D1 (de) 1993-05-19
CH674287A5 (fr) 1990-05-15

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