EP0751639A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method, transmitter and receiver for transmitting and receiving information; information broadcasting, in particular RDS (Radio Data System)
Assignee: STMicroelectronics SRL
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Filing: 1995-06-30
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Granted: —
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Expires: 2015-06-30
Abstract
Abstract In transmission systems whereby data packets of one type and having a fixed structure are used to transmit a given type of information, the invention proposes of optimizing the transmission by the utilization of data packets of the same type to transmit information of different types and of differentiating the information transmitted in such packets by the rate of re-transmission thereof. In an application of the invention to RDS systems, the block PS is used to transmit both the program service name, as usual, and the radio text, and arrangements are made for the rate of re-transmission of the name to be a high one and that of the text to be low or possibly zero.
Inventors
- 👤 Maurizio Tonella
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 15:17
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/16; H04H20/28; H04H20/33; H04H20/34; H04H20/42; H04H60/00; H04H60/02; H04H60/06; H04H2201/00; H04H2201/10; H04H2201/13
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
51 words
A method of transmitting information, whereby at least data packets of the same type are transmitted repeatedly, characterized in that the information is classed and the same information is transmitted, for a number of times which is related to a class associated therewith, through the data packets of said same type.
Claim 2
Dependent Claim
28 words
A method according to Claim 1, wherein unimportant information is transmitted no more than once, and important information is transmitted no less than a predetermined number of times.
Claim 3
Dependent Claim
35 words
A method according to either Claim 1 or Claim 2, wherein said number of times is either related to a time interval of predetermined length or to a predetermined number of consecutively transmitted data packets.
Claim 4
Independent Claim
27 words
A method according to any of the preceding claims, wherein the time lapse which separates consecutive transmissions of the same information is dependent on said associated class.
Claim 5
Independent Claim
44 words
A method according to any of the preceding claims, and of the type used in systems of the kind of RDS, wherein the data packets of said same type correspond to the information word adapted to contain the service name of the program (PS).
Claim 6
Independent Claim
51 words
A method of receiving information, whereby at least data packets of the same type are received repeatedly, characterized in that the informational contents of the received data packets of said same type is stored and the resultant information is classed according to the number of times that it has been received.
Claim 7
Dependent Claim
31 words
A method according to Claim 6, wherein said number of times is either related to a time interval of predetermined length or to a predetermined number of consecutively received data packets.
Claim 8
Dependent Claim
44 words
A method according to either Claim 6 or 7, and of the type used in systems of the kind of RDS, wherein the data packets of said same type correspond to the information word adapted to contain the service name of the program (PS).
Claim 9
Dependent Claim
145 words
A transmitter of information adapted to repeatedly transmit at least data packets of the same type, comprising a storage means (TM) adapted to contain information to be transmitted, a read means (TCP) adapted to select and read said information to be transmitted from said storage means (TM) as well as to prepare a digital signal (DS) including a sequence of data packets of which at least some are of said same type, and a transmitting means (TX) adapted to be input said digital signal (DS) and to transmit it physically on a transmissive medium, characterized in that said storage means (TM) is adapted to store said information to be transmitted in such a manner that it can be distinguished by a class associated therewith, and that said read means (TCP) is effective to implement the method as claimed in any of Claims 1 to 5.
Claim 10
Dependent Claim
37 words
A transmitter according to Claim 9, and of a suitable type for RDS systems, wherein the data packets of said same type correspond to the information word adapted to contain the service name of the program (PS).
Claim 11
Dependent Claim
148 words
A receiver of information adapted to repeatedly receive at least data packets of the same type, comprising a receiving means (RX,SD,DD) adapted to physically receive a signal from a transmissive medium and to output at least a corresponding digital signal (DS) including a sequence of data packets of which at least some are said same type, a storage means (RM) adapted to contain received information, a write means (RCP) adapted to extract at least data packets of said same type from said digital signal (DS) and to write at least the informational contents thereof into said storage means (RM), characterized in that said storage means (RM) is adapted to store said received information in such a manner that it can be distinguished by a class associated therewith, and that said write means (RCP) is effective to implement the method as claimed in any of Claims 6 to 8.
Claim 12
Dependent Claim
37 words
A receiver according to Claim 11, and of a suitable type for RDS systems, wherein the data packets of said same type correspond to the information word adapted to contain the service name of the program (PS).
Claim 13
Dependent Claim
42 words
A receiver according to Claim 12, including a display (DIS) and a control means (RCP) connected thereto and adapted to display, either simultaneously or as selected, information contained in data packets of said same type associated with at least two different classes.
Claim 14
Dependent Claim
48 words
A receiver according to Claim 12, including a further storage means (RM) for storing tuning information on pre-selected programs, wherein said further storage means (RM) is adapted to also contain, for each pre-selected program, the service name of the program (PS) associated with at least one given class.
Claim 15
Dependent Claim
57 words
A receiver according to Claim 12, including a further storage means (RM) for storing service names of the program (PS) associated with at least one given class, for programs being transmitted in a predetermined frequency band, and the control means (RCP) connected thereto (RM) and adapted to produce a scanning and selective storage procedure for said band.
References Cited (Backward Citations)
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