JPH057164A - Method of identifying name of broadcast station for radio receiver - Google Patents

Abstract

PURPOSE:To reduce cost and to enhance versatility by using a frequency data stored in a preset memory so as to access a storage means thereby specifying district information and selecting a name of a broadcast station of a relevant district. CONSTITUTION:When a channel selection completion signal S1 is outputted from a digital electronic tuner 10, an editing circuit 12 reads a frequency data FD at that time. Upon the receipt of a reception frequency, the circuit 12 references a broadcast number table 14A of a lookup table 14. A broadcast number N and a head address of the lookup table are written in an area of the table 14A in which a relevant frequency is used as an address. Since a single station frequency table 14B uses a frequency data when only one broadcast station is in existence for one broadcast wave as an address to store a district number in which the broadcast station is in existence, when the frequency is coincident, the single station is discriminated and the broadcast name is detected. Then the data is inputted to a voice synthesis circuit 16, from which it is informed the user.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcasting station name identification method of a radio receiver for outputting a selected broadcasting station name,
Especially, when the same frequency is assigned to a plurality of broadcasting stations, only the broadcasting station name of the corresponding area is output.

[0002]

2. Description of the Related Art An electronically tuned radio is a digital tuning type for designating a broadcasting station (specifically, its frequency), and a search tuning type for gradually increasing or gradually decreasing a designated reception frequency to stop the frequency change when a desired station is received. In any case, it is judged whether the received broadcast wave is for the desired station by looking at the frequency display, but for that purpose it is necessary to know the broadcast station name corresponding to the received frequency, so select It would be convenient if the name of the broadcast station that was tuned in could be output as a voice or display.

[0003]

However, when the same frequency is shared by a plurality of broadcasting stations, it is necessary to identify the broadcasting station name of the area. INDUSTRIAL APPLICABILITY The present invention enables a radio receiver that outputs a selected broadcasting station name to output only the broadcasting station name of a corresponding area when the same frequency is shared by a plurality of broadcasting stations. is there.

[0004]

According to the present invention, storage means for storing broadcast station name information corresponding to broadcast frequency information and area information, and for storing broadcast station information assigned to one broadcast frequency, A broadcasting station name identifying method of a radio receiver including an electronic tuning tuner having a preset memory in which a plurality of broadcasting frequency information is preset in advance,
Based on the broadcast station information assigned to the one broadcast frequency, it is determined whether or not a plurality of broadcast stations are assigned to the frequency data when the tuning of the electronic tuning tuner is completed,
When it is determined that a plurality of broadcasting stations are allocated, the storage means is accessed by using the frequency data stored in the preset memory to specify area information, and the specified area information and the channel selection are performed. A method for identifying a broadcasting station name of a radio receiver, characterized in that the broadcasting station name of a corresponding area is selected by accessing the storage means according to frequency data at the time of completion.

Further, the present invention stores the broadcasting station name information corresponding to the broadcasting frequency information and the area information, and also stores the broadcasting station information assigned to one broadcasting frequency, and the frequency sweep selection station. In a method of identifying a broadcasting station name of a radio receiver including an electronic tuning tuner having means, a plurality of frequency data at the time of completion of tuning of the electronic tuning tuner are provided based on broadcasting station information allocated to the one broadcasting frequency. Judge whether or not the station of
If it is determined that a plurality of broadcasting stations are assigned, the frequency sweep tuning means is activated, the storage means is accessed using the frequency data obtained by the tuning means, and area information is specified. A broadcasting station name identifying method for a radio receiver, characterized in that the broadcasting station name of the corresponding area is selected by accessing the storage means according to the specified regional information and the frequency data when the tuning is completed.

[0006]

When a plurality of broadcasting stations are allocated to the frequency data at the time of completion of tuning based on the broadcasting station information allocated to one broadcasting frequency, the frequency data stored in the preset memory is used, or the frequency data stored in the preset memory is used. By accessing the storage means by using the frequency data obtained by activating the sweep tuning means, the area can be specified if the single station frequency is included in the frequency data. By accessing the storage means with the specified area and the frequency data at the time of completion of the tuning, the broadcasting station name of the corresponding area can be selected.

[0007]

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, reference numeral 10 denotes a digital electronic tuning tuner of a radio receiver, which has a high-frequency amplifier, a local oscillator, a frequency mixer, an intermediate-frequency amplifier, a tuning circuit with a built-in PLL, and the like, which are not shown but are known. If the tuning circuit is a digital tuning type, it is a memory for storing broadcasting frequency information of each broadcasting station, a selection switch for instructing any desired one of the broadcasting frequency information, the selected broadcasting frequency information and the local oscillation frequency (specifically, It is composed of a local oscillator frequency changing circuit for gradually increasing or gradually decreasing the local oscillation frequency while the comparator shows a disagreement,
The search channel selection type includes a circuit for changing the frequency of the local oscillation and a circuit for temporarily or permanently stopping the change in the frequency of the local oscillation when the broadcast wave is received by the output of the intermediate frequency amplifier.
Reference numeral 12 is an editing circuit, which is composed of, for example, a microcomputer, and when receiving the tuning completion signal S1 from the intermediate frequency amplification stage or the comparator of the tuner 10, receives the broadcast frequency data at that time, specifically, the local frequency data FD. Put in.
Reference numeral 14 is a look-up (reference) table, which is composed of a ROM (read-only memory) and stores broadcasting station name information and broadcasting frequency information thereof. The broadcasting station name is NHK Tokyo 1st Broadcast,
It is relatively long, such as Chubu Nippon Broadcasting, and "is" in the announcement.
It will be even longer if you add "," etc., so "Chubu,""Japan,""broadcast," etc. are stored for each phrase. The editing circuit 12 accesses the table 14 by using the frequency data FD fetched from the tuner 10 as an address, and reads the broadcasting station name information corresponding to the data for each clause. For example, the n, n + 1, n + 2 addresses of the table 14 store the above-mentioned clauses “Chubu”, “Japan”, and “broadcast” (for details,
Instead of such a word, a memory address of a voice synthesis circuit described later), the editing circuit 12 outputs the head address n of the frequency data FD, and a predetermined number of subsequent addresses, n + 1 and n + 2 in this example, to output a table. Access 14. The broadcasting station name information SI read out from the table 14 in this way is inputted to the speech synthesis circuit 16 and the synthesized speech output S
Output VO.

The voice synthesizing circuit 16 is of the Percoll type in this example, and comprises a synthesizing controller 18, a voice data memory 20, a signal processor 22, and a D / A converter 24. The memory 20 is also composed of a ROM and stores voice data for each phrase. The broadcasting station name information SI is an address of the memory 20. For example, when the information SI is “Chubu”, “Japan”, and “broadcast”, these are stored in the memory 2
It becomes an address signal of a storage area for storing the phrase-corresponding voice data of 0, and the data is output one after another. This is input to the signal processor 22 via the synthesis controller 18 to change the frequency characteristic of the processor 22 which is a digital filter. Although not shown, impulse or random noise is input to the processor, and when it passes through the filter 22 whose frequency characteristic is changed by voice data, its output becomes a digital voice signal representing each clause,
When DA converted by the D / A converter 24, the analog audio signal SVO is obtained. This is input to the low frequency amplification section of the radio receiver and emitted from the speaker.

One broadcasting station does not necessarily correspond to one broadcasting frequency, and broadcasting stations in a plurality of regions separated from each other may use the same broadcasting frequency.
The table below shows an example of assigning the same frequency to multiple stations: 7 stations at 1197 KHz, 2 stations at 1233 KHz, and 1 station.
Two stations are assigned to 269 KHz, and the same frequency is assigned to areas that are far apart so as not to interfere with each other.

[0010]

[Table 1]

The present invention makes it possible to identify a broadcasting station name only in the area when such a frequency (hereinafter referred to as multi-station frequency) is received. FIG. 2 is an explanatory diagram of main parts, and FIG. 3 is an overall flowchart. According to the flow of FIG. 3, first, when the tuner 10 outputs the tuning completion signal S1, the editing circuit 12 determines the frequency data FD at that time.
Read in. The contents of the next decision step A and processing step B are shown in FIG. In the example of FIG. 2, the FD is 1008 (KH
z) is taken as an example. The editing circuit 12 refers to the broadcast station number table 14A of the lookup table 14 when the reception frequency FD = 1008 is given. In this table 14A, the number N of broadcast stations and the start address of the look-up table (here, the next single station frequency table 14B is shown) are written in the area having the corresponding frequency FD as an address. This table 14B uses the frequency data (this is called a single station frequency) when only one broadcasting station exists in one broadcasting wave as an address, and the area No. in which the broadcasting station exists therein. Is stored, it can be determined as a single station if the frequencies match, and a broadcast station table for a single station (not shown) (the frequency FD and the corresponding broadcast station name are stored)
To detect the broadcasting station name (this processing step is not shown in FIGS. 2 and 3). After that, it is possible to shift to the editing of voice synthesis (after the judgment step C in FIG. 3).

However, if the number N of broadcasting stations is 2 or more for the frequency FD, a match cannot be obtained by comparison with the table 14B (not in the table). In this case, processing step B
Go to. The flow of FIG. 2 shows this part in detail.
That is, (1) if the preset memory in which a plurality of broadcast frequency information is stored in advance has a preset single-station frequency in the area, compare it with the table 14B to determine the area NO. 2) A channel selection operation such as scanning is automatically performed, and a frequency different from FD = 1008 is received to specify a region. The RAM shown in FIG. 2 is a random access memory in which several frequencies received in this way are stored, and FDa, FDb, ... Next, this frequency data FD
a, FDb, ... By comparing the table 14B with each other, if there is a match, the district No. Read out. And
This area NO. By referring to the broadcasting station name table 14C with FD = 1008, it is possible to know the broadcasting station name of only the relevant area from the multi-station frequencies. After this, the process proceeds to the voice synthesis processing similar to the single station frequency.

After step C in FIG. 3, it is indicated that all broadcast station names are not announced as they are read, but some are output at frequencies. That is, there are many broadcasting station names, and it is not economical to prepare all of them in the lookup table 14 and the audio data memory 20. Therefore, it is recommended to announce the name of the station as a typical broadcasting station and announce the frequency of others. In this case, the lookup table 14 and the voice data memory 20 have "5 hundreds" and "9".
Voice information for phrases such as "10", "3", and "KHz" is also prepared.

By the method described above, the broadcasting station name can be known from the reception frequency, and even if there are a plurality of broadcasting stations for one broadcasting frequency, the user can be notified without error.

[0015]

As described above, according to the present invention, even when the same frequency is assigned to a plurality of broadcasting stations in different regions, the corresponding broadcasting is performed without the user manually operating the region selection switch or the like. It is very convenient because only the station name can be identified and notified to the driver.

Moreover, since the area can be specified using the existing electronic tuner without using an expensive system for specifying the area, the area can be identified with a low-cost and highly versatile structure. . Further, there is an advantage that an incorrect broadcasting station name is not output due to forgetting operation.

[Brief description of drawings]

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

FIG. 2 is an explanatory diagram of a main part thereof.

FIG. 3 is an overall flowchart.

[Explanation of symbols]

10 Digital electronic tuning tuner 12 Editing circuit 14 Look-up table 16 speech synthesis circuit

Claims (2)

[Claims] 1. Storage means for storing broadcasting station name information corresponding to broadcasting frequency information and area information, and also storing broadcasting station information assigned to one broadcasting frequency, and a plurality of broadcasting frequency information are preset. In a method of identifying a broadcasting station name of a radio receiver including an electronic tuning tuner having a preset memory, a frequency at the time of completion of tuning of the electronic tuning tuner based on broadcasting station information allocated to the one broadcasting frequency. It is determined whether or not a plurality of broadcasting stations are allocated to the data of No. 1, and when it is determined that a plurality of broadcasting stations are allocated, the frequency data stored in the preset memory is used to access the storage means. Area information is specified, and the storage means is accessed according to the specified area information and the frequency data when the tuning is completed. A method of identifying a broadcasting station name of a radio receiver, characterized by selecting a broadcasting station name in a region. 2. An electronic device having storage means for storing broadcast station name information corresponding to broadcast frequency information and area information, and for storing broadcast station information assigned to one broadcast frequency, and frequency sweep selection station means. In a broadcasting station name identifying method of a radio receiver including a tuning tuner, a plurality of broadcasting stations are included in frequency data when the tuning of the electronic tuning tuner is completed based on broadcasting station information assigned to the one broadcasting frequency. When it is determined whether or not a plurality of broadcast stations are assigned, it is determined whether or not a plurality of broadcast stations are assigned, and the frequency sweep tuning means is activated to store the storage means using the frequency data obtained by the tuning means. The area information is accessed and specified, and the storage means is accessed by the specified area information and the frequency data when the tuning is completed to select the broadcasting station name of the corresponding area. A method for identifying a broadcasting station name of a radio receiver, which is characterized by the above.