SK283057B6 - Radio paging and electronic mailbox system - Google Patents

Abstract

The paging and mailbox system uses one or more satellite and/or terrestrial television transmitters, with the paging or electronic mailbox information transmitted as teletext signals inserted in the blanking intervals in the analogue video signals. The paging or electronic mailbox signals are decoded by the teletext decoder within each television receiver, for display on the screen. Preferably each individual subscriber has an authorisation code, which is used when sending or receiving a message.

Description

Technical field

The invention relates to a method of radio calling persons and electronic mailboxes for delivering messages to third parties.

BACKGROUND OF THE INVENTION

The flexibility of today's society requires that every individual be reachable at any time, practically anywhere in the globe.

To reach this goal, there are now a number of communication systems, such as public telephone networks, various terrestrial mobile radio networks and global mobile satellite radio services.

Mobile terrestrial and satellite-provided services are considerably more expensive than those offered by the public fixed telephone network, usually due to the necessary higher costs.

In contrast, people search and e-mail services are considerably cheaper. This makes them interesting for a large number of users because they are seen as a way to better handle unforeseen situations.

Electronic mailbox systems offer the possibility of exchanging messages with third parties via their own electronic mailbox, such as the Telebox-400-IPM service of German Telekom AG. At the same time, the participants do not communicate directly with each other, but usually with a delay. The person who awaits the message must call up his / her "mailbox" for this purpose.

In addition, there are a number of people search systems, such as the SCALL service DeTeMobil, a subsidiary of Telekom, which allows third parties to initiate predetermined responses.

Telekom's services are described in:

"Telebox 400 - Mehr Effizienz, Aktualität, Flexibilität und Sicherheit: 4 Bausteine fur Ihren Erfolg", publisher of Deutsche Telekom AG, Vertrieb Geschäftskunden;

"Telebox 400-IPM-Productbeschreibung für IPM und PC-Box-Software", Publisher Deutsche Telekom AG, Forschungs- und Technologiezentrum, Mailbox 10 00 03, 64276 Darmstadt;

"Telebox 400-MT-Produktbeschreibung", publisher of Deutsche Telekom AG Forschungs- und Technologiezentrum, mailbox 10 00 03, 64276 Darmstadt;

"Telebox 400 EDI - Damit iibertragen Alle alle Bestellungen, Rechnungen oder Lieferbestätigungen Computer-Computer-Computer", Publisher Deutsche Telekom AG, General Director, FB GK 3, Mailbox 2000, 53105 Bonn.

The use of these services requires that the subscriber 's whereabouts are known for terrestrial fixed communication networks, for mobile terrestrial telephone networks, that this service is provided with the same technical standard when crossing the border so that the same terminal can be used everywhere; special expensive equipment.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a general, country-wide cross-border method of radio calling and electronic mailboxes utilizing existing terrestrial and satellite television systems.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a radio call method for persons and electronic mailboxes in conjunction with one or more terrestrial and / or satellite television transmitters, as well as reception apparatus and apparatus for receiving terrestrial or satellite television broadcasts according to the invention. SUMMARY OF THE INVENTION The information or message of information or messages stored in an electronic mailbox system to be delivered to third parties is inserted as teletext into the blocking gap of an analog video signal and known teletext decoders in reception and ground and / or apparatus apparatus. satellite TV will recognize and announce it.

Information or messages contained in the electronic mailbox system are transmitted in the blocking gap of the analog video signal in teletext format and decoded and communicated to the teletext decoders in the receiving device, and the information or messages contained in the electronic mailbox system for certain subscribers are in the blocking gap of the analog video signal. insert in teletext format (en after authorization by the transmitter or receiver).

The invention is further based on the fact that the information, respectively. a teletext message containing an analog video blocking gap for certain subscriber groups is encoded, and that the teletext decoder in the receiving device recognizes this for a subscriber group only with a special attachment for that subscriber group and then announces it, and that the information, respectively. a teletext message containing an analog video signal blocking gap for certain subscribers is encoded and that the teletext decoder in the receiving device recognizes this subscriber-related event only with a special attachment for that subscriber and then communicates it.

In addition, another substance is that messages contained in the group's e-mail system, which the members of the group become aware of, can only be read through a publicly accessible communication network only by members of the group after identification or authorization, and that messages contained in the electronic mailbox system of a single subscriber, the existence of which the subscriber becomes aware of, can be read through the public, generally accessible communication network only to those subscribers after identification or authorization.

The satellite television receiving equipment shall be equipped with a transmitter which allows the subscriber to be able to prove to be authorized by the satellite mailbox system and which transmits the message, whether uncoded or coded, to him as teletext, and in addition the satellite television receiving equipment can in addition, be equipped with a transmitter which allows the subscriber to be able to prove himself / herself as an authorized subscriber to the electronic mailbox system and which can be stored in the electronic mailbox system for a third party.

The proposed way of radio calling people and electronic mailboxes bulletin board uses a wide-ranging infrastructure in Europe. This consists of regional use of a terrestrial network of television transmitters and of trans-regional and country-wide transboundary use of existing television satellites as well as television reception equipment capable of receiving teletext. at the HS station of the uplink route for satellite television, one electronic mailbox system is always set up. The invention can thus be implemented at existing plants throughout Europe without great expense.

The proposed method avoids the disadvantage of terrestrial search methods that the geographical region in which the addressee is located must be known or, in addition, the call must be transmitted simultaneously or sequentially through many transmitters. Compared to conventional satellite-based people-searching methods, there is the advantage that no expensive infrastructure needs to be created. In particular, no expensive receivers are needed, but conventional television receivers for terrestrial and / or satellite television with teletext decoders are sufficient.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will now be described by way of example, schematically shown in the drawing, wherein FIG. 1 is a method of radio calling persons and electronic mailboxes with television subscribers.

DETAILED DESCRIPTION OF THE INVENTION

Participants, devices, resp. the apparatus and systems shown in FIG. 1, form the overall assembly, respectively. the overall method described herein.

The proposed method of radio calls to persons and electronic mailboxes is carried out by means of terrestrial television transmitters and / or one or more television satellites (DBS) 12, as corresponding to FIG. 1. An analogue television signal is transmitted that can be received directly. The receiving devices of subscribers 1-9 may be receiving devices for analogue terrestrial television as well as for satellite television. A subset of the receiving devices of subscribers 4-9 includes known teletext decoders. In the case of satellite television, a satellite signal to be transmitted is transmitted to satellite 12 via a known uplink station 11a. The terrestrial television transmitters 10a and / or the uplink path station 11a are each connected to a single system 10 and / or a system 10, respectively. 11 of the electronic mailbox.

The following describes the delivery of the message transmitter information to the system 10, respectively. 11 of the electronic mailbox. The electronic mailbox contains information for subscribers who have been notified to the system as authorized (authorized) users. This information is received for the access participants by the system 10, respectively. 11 of the electronic mailbox via either

1. public networks, for example

(a) by telephone (for example, the public fixed telephone network, mobile radio networks (for example, the C-, D1-, D2-, E-network)) using an operator or an automatic speech recognition system that converts the spoken text appropriately into 'written text'; or

(b) by Telefax; or

c) E-mail, or

d) Telebox 400, or

(e) DFN; or

f) INTERNET, or

(g) online services such as T-online, Compuserve, etc., or

(h) FTP; or

(i) via Datex; or

(j) by means of Teletext; or

(k) through Telex; or

2. Satellite 12 from individual subscribers 7-9 via a low power transmitter and a bandwidth. FDMA in conjunction with crevice-ALOHA may be used as access procedures. ALOHA is described, for example, in the following publications;

1. N. Abramson, "Throughput of packet broadcasting channels", IEEE Trans.Commun. 25.117 to 128.1977;

2. D. Raychaudhuri, J. Harman, “Dynamic performance of ALOHA-type BACK channels: A simulation study, IEEE Trans.Commun. 38, 251-259, 1990; and the slit ALOHA is known and described by L.G. Roberts, "ALOHA Packet System with and without Slots and Capture", ARPANET Satellite Syst. Note 8, NIC 11290, June 1972 (reprinted in Comput. Commun. Rev., April 1975).

The notification of the recipient of the message by the system 10, respectively, is described below. 11 of the electronic mailbox.

The uplink station 11a and / or the terrestrial TV transmitters 10a regularly connect to the television signal to be transmitted an updated list of teletext addressees for which they are in the system 10 and 10, respectively, in the blocking gap. 11 electronic mailbox stored messages. The recipient can recognize that a message is ready for him using a television receiving device capable of receiving teletext.

Recalling information from system 10, respectively. 11 of the electronic mailbox by authorized addressees, as in the case of memorizing a message in the system 10, resp. 11 of the electronic mailbox, can be implemented in principle in two ways, namely through

L public network, for example

(a) by telephone by means of an operator or an automatic text-to-speech system which, in system 10 and / or 11 will convert the memorized text in an appropriate way and pass it as a speech (voice) when retrieved via the phone, or

(b) by Telefax; or

c) E-mail, or

d) Telebox 400, or

(e) DFN; or

f) INTERNET, or

(g) online services such as T-online, Compuserve, etc., or

(h) FTP; or

(i) via Datex; or

(j) by means of Teletext; or

(k) through Telex; or

2. a television satellite 12, wherein the authorized addressee of the plurality of subscribers 7-9 transmits a request to the electronic mailbox system 11 at the uplink station 11a via very low power and bandwidth radio satellites 12. Then system 10, respectively. 11 of the electronic mailbox, format the information for the subscriber who sent the request as teletext and transmit it encrypted, thereby guaranteeing that only the addressee can receive and use the message (possibly using a teletext decoder accessory).

Upon acknowledgment by the subscriber of this service that retrieves the mailbox, the information in the electronic mailbox is deleted and the list of recipients for which the message is prepared is updated. This ensures that the periodically broadcast teletext format is not unnecessarily long. Depending on the number of subscribers, the number of rows in the blocking gap may not be enough. In this case, teletext would allow, for example, the use of a full number of video image lines to transmit information.

The method can be implemented without technical problems across Europe with a uniform standard, either as a person search system or as an electronic mailbox system. It can be used to deliver messages, search prompts, etc. across Europe using a satellite component throughout Europe. for example, passengers if they have access to a satellite television receiver capable of receiving teletext (eg in a hotel).

Due to the already existing infrastructure, the present invention is more advantageous than national methods of radio calling and electronic mailboxes. However, the present invention also has the advantage that no special receivers are required in comparison with purely satellite methods of searching for persons.

via satellite, by means of a transmitter on the satellite television reception equipment, proves to be authorized and subsequently the message, uncoded or encrypted, intended for that subscriber, is transmitted in teletext format.

Method according to claim 1, characterized in that the subscriber of the system and the electronic mailbox is proven to be authorized by means of an additional transmitter on the satellite television reception device and subsequently the message intended for the third subscriber is stored in the electronic mailbox system.

Claims (7)

PATENT CLAIMS 1. A method of radio calling persons and electronic mailboxes in conjunction with one or more terrestrial and / or satellite television transmitters, as well as receiving apparatus and apparatus for receiving terrestrial or satellite television broadcasting, characterized in that the information or message on information or messages, stored in the electronic mailbox system to be delivered to third parties is inserted as teletext into the blocking gap of the analogue video signal and the message or message information is recognized and communicated in the teletext decoders in the reception equipment and apparatus for terrestrial and / or satellite television. Method according to claim 1, characterized in that the information or messages found for certain subscribers in the electronic mailbox system are inserted into the blocking gap of the analog video signal in teletext format only after being authorized by the transmitter or receiver. Method according to one of claims 1 or 2, characterized in that the teletext format information or message, which includes an analog video signal blocking gap for certain groups of subscribers, is encoded, and in the teletext decoders in the receiving device, this fact relating to a certain group participants, first recognizes by means of a special attachment of this group of participants and then announces. Method according to any one of claims 1 to 3, characterized in that the information or message in the teletext format, which contains an analog video signal blocking gap for certain subscribers, is encoded, and in the teletext decoders in the receiving device, this fact relating to the subscriber , first recognizes the subscriber through a special attachment and then announces. Method according to any one of claims 1 to 3, characterized in that the messages contained in the electronic mailbox for the group, the existence of which the members of the group become aware of, are made available to the members of the group only after identification or authorization. . Method according to any one of claims 1 to 3, characterized in that the messages contained in the electronic mailbox for one subscriber of which the subscriber is aware of the existence thereof are made available only to that subscriber via the public, generally accessible communication network after identification or authorization. Method according to claim 1, characterized in that the user of the system and the electronic mailbox are