RDS radio receiver with user-definable-region filtering
First Claim
1. A radio receiver, havinga tuner stage (38) having an output,a decoder (10), having an input connected to said output of said tuner stage (38), and decoding digitally-encoded, received traffic news bulletins, and program identification (PI) codes in accordance with the Radio Data System (RDS),a first memory device (12) having an input connected to the output of said decoder, and storing route-specific features, namely geographic region identifiers (22) and at least one of:
- place names (a,
18),junction identifiers (20),route identifiers, androute segment identifiers (b);
a second memory device (26) storing, in each of a plurality of respective memory locations (28), a geographic region identifier and a Program Identification (PI) code, including data uniquely identifying each radio transmitter;
means (36,
14), connected to an output (32) of said first memory device (12), for indicating, to a user, information from said memory device which is relevant to said received traffic news;
whereininput means (24), connected to an input of said second memory device, are provided for defining at least one geographic region about which the user desires to receive traffic news bulletins;
the geographic region identifiers stored in said first and second memory devices (12,
26) correspond to each other,a comparator (50) receives and compares an output signal from said RDS decoder )10) with an output signal from said second memory device (26), and triggers a station-seeking stage (52) whenever respective PI codes in said output signals do not match; and
logic means (34), having respective inputs connected to respective outputs (32,
30) of said first and second memory devices (26,
12), selectively actuate said indicating mans (36,
14) whenever a PI code of a received traffic news bulletin matches a PI code of a geographic region (28) stored in said second memory device (26).
1 Assignment
0 Petitions
Accused Products
Abstract
Memory devices containing route-specific features as well as standardized texts are provided in vehicle receivers having a decoder for decoding digitally encoded, received traffic news. By addressing the memory locations, these texts can be called up. In order to ensure that the driver receives only traffic information from the region of interest to him, route-specific features are provided with an identifier. By specifying the identifier it is then possible to select only the traffic news relating to the desired region. In addition, program identification codes of stations which are responsible for broadcasting traffic news in the respective regions are stored. By comparing the stored program indentification codes, the prerequisite is created that stations which are responsible for traffic news in the region of interest to the driver are in actual fact received.
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Citations
6 Claims
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1. A radio receiver, having
a tuner stage (38) having an output, a decoder (10), having an input connected to said output of said tuner stage (38), and decoding digitally-encoded, received traffic news bulletins, and program identification (PI) codes in accordance with the Radio Data System (RDS), a first memory device (12) having an input connected to the output of said decoder, and storing route-specific features, namely geographic region identifiers (22) and at least one of: -
place names (a,
18),junction identifiers (20), route identifiers, and route segment identifiers (b); a second memory device (26) storing, in each of a plurality of respective memory locations (28), a geographic region identifier and a Program Identification (PI) code, including data uniquely identifying each radio transmitter; means (36,
14), connected to an output (32) of said first memory device (12), for indicating, to a user, information from said memory device which is relevant to said received traffic news;wherein input means (24), connected to an input of said second memory device, are provided for defining at least one geographic region about which the user desires to receive traffic news bulletins; the geographic region identifiers stored in said first and second memory devices (12,
26) correspond to each other,a comparator (50) receives and compares an output signal from said RDS decoder )10) with an output signal from said second memory device (26), and triggers a station-seeking stage (52) whenever respective PI codes in said output signals do not match; and logic means (34), having respective inputs connected to respective outputs (32,
30) of said first and second memory devices (26,
12), selectively actuate said indicating mans (36,
14) whenever a PI code of a received traffic news bulletin matches a PI code of a geographic region (28) stored in said second memory device (26). - View Dependent Claims (2, 3, 4, 5, 6)
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Specification