JP3050707B2 - Broadcast station recognition means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle radio receiver, and in particular, stores a table in which a plurality of pre-divided region names are associated with transmission frequencies of receivable broadcast stations for each region. The present invention relates to an in-vehicle radio receiver having a data memory.

[0002]

2. Description of the Related Art Conventionally, in the field of on-vehicle radio receivers, the whole country is divided into a plurality of blocks, and transmission frequency data of a receivable broadcasting station and the transmission frequency data are divided for each area block. Is stored in advance in a memory in the radio receiver, and a received signal of a desired broadcast station is used by using the stored content of the memory at the time of channel selection. Is known. This kind of on-vehicle radio receiver is known in foreign countries as a so-called ID logic type data-equipped radio receiver.

[0003] In a country such as the United States, whose land area is vast, a large number of broadcast stations are arranged in the land, and among these broadcast stations, only broadcast contents of a specific broadcast genre are broadcast all day. Some are doing. Here, the specific genre refers to a music program, a news program, and the like.
Some stations specialize in broadcasting country and rock.

[0004] In-vehicle radio receivers used in a region having such a region block usually include various data relating to a broadcasting station in each region, for example, a broadcasting station name, a broadcasting frequency, a broadcast program content, and the like. The above-mentioned stored ID logic type data is mounted, and among various selection keys provided on the in-vehicle radio receiver, there are various genres for directly selecting a station broadcasting a program of a specific genre. Is also provided, and a configuration is adopted in which one of a large number of broadcasting stations can be selected with a minimum number of operations.

On the other hand, the above-mentioned ID logic type data specifies a regional block, and its unit is a state (state) and a city (city). Is displayed on the display device of the in-vehicle radio receiver, the audible broadcast station in that state / city can be received, and the station broadcasting a program of a specific genre is automatically selected. Have the ability to This is a genre scan, usually 6
Each key is assigned a genre,
The broadcast station of the genre is searched by the corresponding key input.

[0006]

Such an ID logic type data-equipped radio receiver searches for a broadcast station of a desired genre in the current area by actually searching the genre as described above. I couldn't understand unless I tried it. This means that you have to repeat the search every time you run a car and enjoy the music of your favorite genre, or while listening to the news, the running area changes and you enter another area. That's a lot of trouble for the driver. An object of the present invention is to provide an on-vehicle radio receiver in which this disadvantage is solved.

[0007]

SUMMARY OF THE INVENTION According to the present invention, there is provided a broadcast frequency table for each genre, which corresponds to a plurality of regions divided in advance and which are broadcast for the regions. A data memory, a plurality of indicators that are activated when a broadcasting station of a corresponding genre is present in the data memory, and a control unit that controls the data memory, the indicator, and overall reception. The unit reads the data of the broadcasting station broadcasted for the area according to the genre from the table of the data memory according to the input of the area name, and displays the indicator corresponding to the existing genre among the plurality of indicators. Actuating, and in addition to the above configuration, a preset means for presetting a plurality of broadcast stations Allowed provided, is solved by presetting by the preset device broadcasting stations existing genre desired also is controlled by the control unit of the preset means.

[0008]

The control section of the microcomputer reads the broadcast frequency of the area from the data memory by the genre of the broadcast content when the area name change accompanying the change of the running area of the vehicle is inputted, and displays the indicator provided for each genre. Since it is activated, broadcasting stations of existing genres can be judged at a glance. Further, by operating a key provided corresponding to the indicator, it works so as to preset only a broadcasting station of a desired genre, so that broadcast reception for each genre can be easily performed by inputting only a region name.

[0009]

1 is a block diagram of an embodiment of an ID logic type data-equipped on-vehicle radio receiver according to the present invention, wherein 1 is a front end, 2 is an intermediate frequency amplifier, 3 is a demodulator, Reference numeral 4 denotes an audio frequency amplifier circuit, reference numeral 5 denotes a speaker, reference numeral 6 denotes a phase locked loop (PLL circuit), and reference numeral 12 denotes an antenna for reception. 7 is an intermediate frequency amplifier circuit 2
Monitoring the level of the input signal received by the output of
The output from the meter circuit is input to a control unit 8 described later as data on the level of the received signal. A control unit 8 controls the receiving circuit and other components in a microcomputer configuration. A display unit 9 displays a region name and others.
0 is a part of a database included in the ID logic memory 8 as an ID logic memory as a data memory composed of a ROM, and is a part of a database included in the ID logic memory 8 and is receivable in each region stored in the ID logic memory 10. This is a table in which the frequencies of various broadcasting stations are written for each genre corresponding to the area name, and both the display unit 9 and the IA logic memory 10 are connected to the control unit 8.

Reference numeral 11 denotes an operation unit. Of the many operation functions provided here, those not directly related to the present invention are not shown and described. Reference numeral 11a denotes an indicator for reading and displaying the existence of a broadcasting station from the ID logic memory for each genre. In this embodiment, six indicators 1 to 6 are provided. Reference numeral 11b denotes a genre key for designating the memory for each displayed genre. Correspondingly, six keys 1 to 6 are provided. Reference numeral 11c denotes a plurality of preset keys for presetting and storing the reception frequency and recalling. The above-mentioned indicators 11a, genre key 11b, and preset key 11c are all included in the control unit 8. Is controlled by Reference numeral 13 denotes a preset memory related to the preset key 11c, and stores a plurality of reception frequencies corresponding to the preset key 11c under the control of the control unit 8.

The operation of the embodiment constructed as described above will be described with reference to the flowchart of FIG. 2 together with FIG. The part including the antenna 12, the front end 1, the intermediate frequency amplifying circuit 2, the demodulation circuit 3, the audio frequency amplifying circuit 4, the phase locked loop (PLL) 6, the control unit 8, and the speaker 5 has the same configuration as a normal radio receiver. Since the operation is the same, a basic description of these parts is omitted. Now, suppose that this receiver is in ID logic mode,
If the area in which the vehicle travels changes due to the traveling movement of the car, the electric field strength of the received signal naturally becomes weaker, so the operation of changing the area is performed.

The operation is performed by a state / city selection key (not shown) included in the operation unit 11, and
When the city selection key is pressed for the first time, the state / city input mode is entered, and the state / city indicating the current location of the running vehicle is displayed on the display unit 9. Next, when the state / city selection key is pressed for 1.7 seconds or more, the state input mode is set. At this time, when a key in a desired direction of the up / down key (both are included in the operation unit 11 but not shown) is pressed, the state input mode is pressed. When the name is scroll-selected and the up-down key in the desired direction is pressed for 1.7 seconds or more, the state name is fast-forwarded, and the display unit 9 is displayed for 500 ms.
Are displayed sequentially.

When the state / city selection key is pressed again, a city input mode is set. At this time, when a key in a desired direction of the up / down key is pressed, the city name is scroll-selected in the same manner as described above. When the key of the desired direction of the down key is pressed for 1.7 seconds or more, the city name is fast-forwarded and sequentially displayed on the display unit 7 for 500 ms. Thereafter, if the state / city selection key is pressed for 1.7 seconds or more, or if no key input is performed within 5 seconds, the state / city input mode is automatically canceled and the mode returns to the normal mode.

When the area name (state / city) displayed on the display unit 9 is selected by the above operation (step 101), the control unit 8 sets the ID logic memory 1
The corresponding area name is searched from the 0 table 10a, and the broadcast frequency corresponding to the area name is read for each genre (step 102). In the example of FIG. 1, in the area name A, genre 1 has three broadcast frequencies f1, f2, and f3, genre 2 has one broadcast frequency f4, and genre 3 has two broadcast frequencies f5 and f6.
It can be seen that the station, genre 4 has two stations of f7 and f8, the genre 5 has four stations of f9, f10, f11 and f12, and the genre 6 has zero. So, in this example,
The control unit 8 includes an indicator 11a for each genre.
Of the existing genres, 1, 2,
3, 4 and 5 are turned on, and 6 is not turned on (step 10).
3). In this way, the presence of a broadcasting station of a desired genre is displayed and clarified by the indicator only by the operation of changing the area.

Next, a desired genre indicator 11
If any of a is lit, the genre key 11b corresponding to the lit indicator 11a is operated (step 104), so that the control unit 8 performs auto preset (step 105). That is, if the genre 1 is the desired genre, and if the indicator 11a is lit as in this example, by operating the genre key 11b, the control unit 8 can read the area from the table 10a of the ID logic memory 10. The genre 1 frequency data f1, f2,
f3 is read and the PLL circuit 6 is controlled, and the front end 1, the antenna 12, the intermediate frequency circuit 2, and the S meter circuit 7 sequentially receive f1, f2, and f3. Station preset memory 13
To memorize. Then, it is checked whether or not the preset number of stations has reached a predetermined number (step 106). If there is still a vacant station, the fact is displayed on the display unit 9 and the operation waits until the genre key 11b is operated (step 106). Step 10
4). In this state, a broadcast of a desired genre can be received by operating the preset key 11c, but the description is omitted because it is a known technique.

In the above, it is checked whether or not the number of preset stations has reached a predetermined number (step 106).
When the number of presettable stations is eight, the genre key 11b 2 is operated subsequently to set f4, and the genre key 11b 3 is operated subsequently to set f5 and f5.
f6 is preset, and when genre key 11b 4 is operated and f7 and f8 are preset, a total of 8
As a station, the display unit 9 displays that the number has reached the predetermined number, and waits until the next area name change input is made. In this state, it is needless to say that a broadcast of a desired genre can be received by the preset key 11c.

In the above description, the genre keys 11 correspond to the plurality of indicators 11a of the operation unit 11, respectively.
b, a preset operation is performed by the operation. However, with the input operation of the area name, the broadcasting stations of each genre are automatically preset as one genre for one preset key, and the genre key 11b Can be made unnecessary, and various other methods can be considered.

[0018]

As described above, according to the present invention, in using the radio receiver equipped with the ID logic type data, the area name (state and city) accompanying the change of the area due to driving.
, The presence status of broadcasting stations by genre in the area is automatically displayed on the indicator, so that the presence / absence of broadcasting of the desired genre can be determined at a glance, and the key of each genre can be determined at a glance as in the past. This eliminates the need to operate and search for the presence of the vehicle to be understood, which is effective for driving comfort and safety. In addition, these stations can be preset by genre, which is very convenient for users.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a flowchart of the operation of one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front end 2 Intermediate frequency amplification circuit 3 Demodulation circuit 4 Audio frequency amplification circuit 5 Speaker 6 Phase synchronization circuit (PLL) 7 S meter circuit 8 Control part 9 Display part 10 ID logic memory 10a Table 11 Operation part 11a Indicator 11b Genre key 11c Preset key 12 Antenna 13 Preset memory

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) H04B 1/16 H03J 5/00-5/02 H03J 7/18

Claims (2)

(57) [Claims] 1. A data memory which stores a broadcast frequency table for each genre corresponding to a plurality of pre-divided areas, corresponding to the area names of a plurality of areas, and a corresponding genre in the data memory. When a broadcasting station is present, the indicator includes a plurality of indicators that operate, the data memory, the indicator and a control unit that controls overall reception, the control unit, with the input of the area name, the control unit, Radio reception characterized by reading data of a broadcasting station broadcast for a region from a table of the data memory for each genre, and operating an indicator corresponding to a genre in which the broadcasting station is present among the plurality of indicators. Broadcast station recognition means. 2. A data memory storing a table of broadcast frequencies for each genre corresponding to a plurality of pre-divided areas, corresponding to the area names of a plurality of areas, and a genre corresponding to the genre in the data memory. When there is a broadcast station, a plurality of indicators that the corresponding indicator operates, a preset unit that can preset a plurality of broadcast stations, the data memory, the indicator and a control unit that controls overall reception including the preset unit The control unit reads the data of the broadcast station broadcasted for the area according to the genre from the table of the data memory according to the input of the area name, and the broadcast station is present among the plurality of indicators. Activate the indicators corresponding to the genre you want Broadcast station recognizing means of a radio receiver, wherein an existing broadcast station is preset by the preset means.