Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Patent
1997-07-28
1999-09-14
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
340905, 340989, H04B 700
Patent
active
059536721
ABSTRACT:
The present invention relates to a radio-based mobile short-range communication system SRC, comprising a transmitting and receiving unit. The receiving units are offered information from the transmitting units from a number of information providers. The information providers offer information within one or more predetermined subject fields. The receiving unit selects a desired information and obtains this information presented via a presentation element. The transmitting unit transfers a protocol divided into a number of main divisions. For each information provider, the protocol is divided into a number of subdivisions, one of which indicates different subject fields. The subject fields constitute headings for different subject categories which are presented in a number of octets. Each subject field is represented by one bit which is set to 0 when the information provider does not have any information to deliver within the subject field and, respectively, to 1 for information which is provided. The receiver indicates the information provider from whom information is requested and, respectively, the subject field. The designated information is then presented on a presentation element. The receiver then obtains the desired information. The information can thereby be divided into a number of subheadings.
REFERENCES:
patent: 3646580 (1972-02-01), Fuller et al.
patent: 3899671 (1975-08-01), Stover
patent: 4864306 (1989-09-01), Wiita
patent: 5077830 (1991-12-01), Mallia
patent: 5293163 (1994-03-01), Kakihara
patent: 5539395 (1996-07-01), Buss et al.
Laraqui Kim
Lengdell Magnus
Bhattacharya Sam
Eisenzopf Reinhard J.
Telia AB
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