JPS60165835A - Receiver - Google Patents

Abstract

PURPOSE:To recognize easily a broadcast station name at an optional district by discriminating a received broadcast radio wave strength and a prescribed preset radio strength pattern and informing a broadcast station name from the district information and frequency information. CONSTITUTION:A control circuit 5 revises a reception strength pattern of a reception pattern storage circuit 8 by the operation of a search switch 51 or 52. This is attained by changing sequentially a frequency code of the reception frequency setting circuit 6 by each prescribed amount. Then the control circuit 5 selects a broadcast station with sufficiently strong strength so as to be received. Then a reception district discriminating circuit 11 gives district information 11a to a frequency data storage circuit 9 to which a frequency of a broadcast station at each district is preset and the circuit 9 outputs the frequency information 9a of the district. A comparator circuit 10 compares the frequency information 8a and 9a and discriminates it whether the present district is a district of the information 11a or not and the district coincident most with the frequency information is selected. The control circuit 5 reads the broadcast station name code at that time from a frequency-broadcast station name storage circuit 12 according to the address information based on the reception frequency and the district discriminating information 11c.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a receiver applied to an auto-search radio receiver or the like.

[Prior art]

The configuration of a conventional receiver will be explained with reference to FIG. In the figure, (1) is a receiving circuit, and the received output of this receiving circuit (1) is given to a speaker (4)K via a detection circuit (2) and an amplifier circuit (3). The above configuration is well known from conventional radio receivers.

(5) is a control circuit. Although not shown, this control circuit (5) includes, for example, a microcomputer, etc., and is used to set the receiving frequency of the receiver, balance modes, and perform various calculations. . The reception frequency setting circuit (6) is
Although not shown, it includes, for example, a decoder, etc., and converts the receiving frequency setting code given from the control circuit (5) into predetermined frequency information and provides it to the receiving circuit (11K).

The receiving circuit (1) changes its receiving frequency according to frequency information given from the receiving frequency setting circuit (6). An example of such a receiving circuit (1) is an electronic tuner. The receiving circuit (1) outputs an intensity signal of the received radio waves. As such a strength signal, for example, the output of an AGC circuit (not shown) included in the receiving circuit (1) is used.

This strength signal is given to a receiving frequency strength measuring circuit (7).The receiving frequency strength measuring circuit (7) is for converting the given strength signal into a digital code. The intensity signal converted into a digital code is given to the control circuit +51K.・The above control circuit (51K is the up (uP) search switch (5υ and down (do)
wn) The side of the search switch is connected. Control circuit (
5) increases the set frequency code given to the reception frequency setting circuit (6) by a predetermined frequency when the up search switch 6υ is operated. Conversely, when the down and search switch □□□ is operated, the control circuit (5) lowers the set frequency code given by the reception frequency setting circuit +61K by a predetermined frequency.

Next, the operation of the above configuration will be explained.

When the up search switch (5υ) is operated, the control circuit (5) increases the set frequency code provided to the reception frequency setting circuit (6) K by a predetermined frequency.

In Japan, this predetermined frequency is 9kHz for AM broadcasting.
For FM broadcasting, the frequency is set to 0.1 μHz.

When the reception frequency setting is changed, the reception circuit (1) receives a new reception frequency, and the reception frequency strength measurement circuit (7) measures the strength of the reception frequency. This intensity signal is given to a control circuit (5) K.

The control circuit (5) determines this strength signal, and if the strength of the reception frequency is sufficiently strong, it directly puts the reception frequency into the reception state. If the strength of the received frequency is weak,
Again, the set frequency code is increased by a predetermined frequency and the strength of the radio wave is determined.

In this way, by repeating increasing the frequency by a predetermined frequency in sequence, a sufficiently strong receiving frequency is found within the receiving band, and the receiving frequency is received. Even when the down search switch Kasumi is operated, the only difference is that the frequency is lowered by a predetermined amount, and the other operations are exactly the same. This type of receiver is called an auto-search radio receiver because it searches for a sufficiently strong receiving frequency.

By the way, various broadcasting frequencies are currently used in various places, and the same frequency is often used depending on the region. For example, in the case of AM broadcasting, the output is 20 KW.
This tendency is especially strong for broadcast stations that have not yet received a broadcast. Therefore, when driving from place to place by car, the driver can know the reception frequency of the car radio receiver, but if the driver is not familiar with the local broadcast station, what exactly are they listening to? I don't know. In this way, when listening to broadcasts in various places using the same receiver, it is inconvenient that the conventional receiver cannot easily know the name of the broadcasting station being received.

[Summary of the invention]

This invention was made in order to eliminate the above-mentioned drawbacks, and the reception area is determined based on the received broadcast radio wave intensity and a preset preset radio wave intensity pattern, and the reception area is determined from the area information and frequency information. To provide a convenient receiver that can easily and accurately know the name of a broadcasting station even when receiving any broadcasting station in any area because the name of the broadcasting station is announced. It is an object.

[Embodiments of the invention]

FIG. 2 is a block diagram showing an example of a receiver according to the present invention, and the same parts as in FIG. 1 are given the same reference numerals and the explanation thereof will be omitted.

In the figure, (8) is a reception pattern storage circuit;
It has a storage circuit that stores the intensity pattern of the current reception state over the entire reception band. (9) is a frequency data storage circuit (9), and this frequency data storage circuit (91K
The frequencies of broadcasting stations existing in a plurality of regions are preset in correspondence with a plurality of regions. For example, in the Osaka area, NHK 1st broadcast 666kHz, NHKM2
Broadcasting frequency is 828kHz.

Asahi Broadcasting 1008kHz, Mainichi Broadcasting 1179kHz
.

1314kHz for Radio Osaka, 88°1μHz for NHK FM broadcast, and 85.1μHz for FM Osaka broadcast are preset. In Japan, there are approximately 220 areas with broadcast stations for AM broadcasting and approximately 500 areas for FM broadcasting, so data for approximately 500 stations is preset to account for duplication of both.

A frequency with a sufficiently strong radio wave intensity is selected from the reception pattern storage circuit (8) and given as frequency information (8a) to a specific absorption circuit having a comparator (not shown). For example, 'Shunshu A with strong radio wave strength
Five M broadcasting stations and five FM broadcasting stations have been selected. Of course, it is not limited to this.

Preset frequency information (9a) is given from the frequency data storage circuit (9) to a comparison circuit αα, and the comparison circuit α0) determines whether or not the frequency information (8a) and the preset frequency information match. The comparison result is then output to the reception area determination circuit (Ill).

Although not shown, the reception area determination circuit αD includes, for example, a memory circuit, an arithmetic circuit, an address counter, etc., and determines the reception area based on the comparison result given from the comparison circuit (to) and converts it to the frequency data storage circuit ( 9) gives regional information (lla), and the above regional information (lla)
) is a button that is updated at a predetermined timing by an address counter (not shown) of the reception area determination circuit. Furthermore, when the reception area determination circuit (11) receives the area determination start signal (llb) from the control circuit (5), it starts the area determination operation, and when determining the reception area, Region determination information (llc) in the control circuit (5)
It is designed to give

■ is a frequency-broadcasting station name memory circuit, and this memory circuit @
, broadcast station names are preset corresponding to multiple reception areas and multiple broadcast frequencies. The plurality of reception areas may be exactly the same as the plurality of reception areas classified in the frequency data storage circuit (9). The frequency/broadcasting station name storage circuit U is connected to the control circuit (5) through an address bus and a data bus. The sound synthesizer is a voice synthesizer, and this voice synthesizer Q31 has a control circuit (5
) according to the broadcasting station name code from the predetermined audio memory αa.
It reads the input data and synthesizes audio, and its output is sent to the amplification circuit (3).

Next, the operation of the above configuration will be explained.

When the user operates the up search switch (51J or down search switch (branch) and gives a signal to the control circuit (5), the control circuit (5) first updates the contents of the reception pattern storage circuit (8). That is, the control circuit (5) sequentially changes the setting frequency code given to the reception frequency setting circuit (6) by a predetermined frequency, and receives all reception frequencies within the entire reception band.Reception circuit (
The intensities of radio waves of all reception frequencies received in step 1) are converted into digital codes by reception frequency strength measurement times W% (7), and this digital code is stored in the reception pattern storage circuit (8).

The radio wave intensity signal of each reception frequency during this all-band search is also sent from the frequency intensity measurement circuit (7) to the control circuit (5), and the control circuit (5) can receive the next signal from among all the bands. Select a broadcasting station with sufficiently strong signal strength. After the full band search, the control circuit (5) causes the selected broadcast station to be received. The selected broadcasting station must be a station whose radio wave strength is strong enough to exceed a predetermined threshold, and which is the highest frequency station above or below the frequency that was being received before the search operation. It's close.

The reception pattern in the reception pattern storage circuit (8) is updated for both AM broadcasting and FM broadcasting, and the region is determined after the contents of the reception pattern storage circuit (8) are updated. That is, first, when a region determination start signal (llb) is given from the control circuit (5) to the reception region determination circuit αD, the reception region determination circuit (111) gives region information (lla) to the frequency data storage circuit (9). , this area information (lla) is updated at a predetermined timing by an address counter (not shown) of the reception area determination circuit.

The frequency data storage circuit (9) to which the region information (lla) has been given outputs frequency information (9a) corresponding to the region to the comparison circuit α0). Comparison circuit 0α compares frequency information (8a) from reception pattern storage circuit (8) and frequency information (9a) from frequency data storage circuit (9) to determine whether the frequency information matches. Then, it is determined whether the current area is the area of the area information (lla). The regional information (lla) is updated at a predetermined timing as described above, and all predetermined regions are compared,
The region with the most matching frequency information is selected. The area selection criteria in the reception area determination circuit l are at least A
A necessary condition is that the frequency information of two M broadcasting stations and one FM broadcasting station match. The selected region is sent to the control circuit (5) as region determination information (llc).

When the control circuit (5) is given the area determination information (llc), it determines the received reception frequency and area determination information @ (11
c)) Sends predetermined address information based on the frequency/broadcasting station name storage circuit u21VC. In the frequency-broadcasting station name storage circuit U, predetermined broadcasting station names are preset corresponding to predetermined reception areas and broadcasting frequencies as described above, and address information given from the control circuit (5) is preset. In response to this, the station name code of the broadcasting station being received by the receiver at that time is read out. The read broadcasting station name code is given to the speech synthesizer αJ, and the speech synthesizer (131
reads the corresponding voice information from the voice memo 141 and synthesizes the voice.The voice output synthesized by the voice synthesizer is outputted from the speaker (4) via the amplifier circuit (3), and the user You can know the name of the broadcasting station you are receiving.

As described above, according to this embodiment, the receiving area is determined by comparing and calculating the frequency information preset for each of a plurality of areas with the intensity distribution of the received radio waves obtained from the receiving circuit (1). Therefore, the reception area can be determined very accurately. Therefore, the user can know the exact name of the broadcasting station.

By the way, in the above-mentioned embodiment, the up search switch 61:J and the down search switch Q are used as in the conventional one, and the receiving frequency is selected from those having radio field strength above a certain threshold value. However, it is also possible to configure the radio waves to be received in order of strength. FIG. 3 shows this embodiment.

In FIG. 3, (53) is a region search switch, which is used by the user to give a command to the control circuit (5) to determine the receiving region. (Incorporated) is a reception selector switch that allows you to switch the reception frequencies that can be received in a particular area in descending order of radio wave strength. Frequency information (8) from the reception pattern storage circuit (8)
A) is applied not only to the comparator circuit 00) but also to the control circuit (5).

In such a configuration, when the user operates the region search switch, the control circuit (5) receives data over the entire reception band, updates the contents of the reception pattern storage circuit (8), and determines one region. This operation is exactly the same as in the previous embodiment, so the explanation will be omitted. Based on the frequency information (8a) from the reception pattern storage circuit (8), the control circuit (5) gives a predetermined code to the reception frequency setting circuit (6) to select the frequency with the highest radio wave strength, and sets the frequency to the reception circuit (1). receive it. After the receiving frequency and region are determined, the name of the broadcasting station of that receiving frequency is searched and the name of the broadcasting station corresponding to the receiving frequency is searched and a voice guidance is provided.0 After that, when the changeover switch is operated, the control circuit (5) Based on the frequency information (8a) from the reception pattern storage circuit (8), the reception frequency is switched in descending order of radio wave strength, the reception circuit (1) receives the signal, and searches for the name of the broadcasting station of that reception frequency. Then, it will be announced by voice.

By the way, as in the above embodiment, if the receiving frequency is selected from those with a radio field strength above a certain threshold value, and the one with the strongest strength is selected for region determination, the two do not necessarily match. In addition, there is a possibility that the name of the broadcasting station may not be displayed even though the broadcasting station is being received.

However, in this second embodiment, since the frequency information used to select the reception frequency and the frequency information used for the station determination match, the broadcasting station name is displayed even though the reception is being performed. It is possible to eliminate the risk of failure.

In the above case, the reception frequency that is changed each time the changeover switch is operated is changed in order of strength of radio waves, and after a predetermined number, for example, 5 stations have been changed, the reception frequency is changed again to the strongest radio wave. Although the configuration is such that the signal strength returns to the receiving frequency, the method is not limited to this method.

If it is inconvenient for the user to hear the receiver during up-search or down-search operations, the amplifier circuit (
3) The IVIUTE circuit (not shown) may be operated to prevent unnecessary sounds from being heard by the user.

Further, in the above embodiment, the region selection is performed when the user presses a switch such as up search, but the present invention is not limited to this. It may also be possible to detect interruptions in audio even during reception, update the reception pattern by receiving the entire reception band or a part of it, and select the update target and trap area. .

With this configuration, it is possible to speed up the response time for broadcast station guidance. Alternatively, region selection may be performed when the receiver is powered on.

Further, the control circuit (5), furthermore, the comparison circuit α0) and the reception area determination circuit aD may be configured by the same microcomputer.

Furthermore, the frequency data storage circuit (9) and the frequency data storage circuit (9)
Although the configuration uses a memory separate from the broadcasting station name storage circuit (2), the same memory can also be used.

Further, in the above embodiment, the control circuit (5) is configured to receive all reception frequencies over the entire reception band, but may be configured to receive only specific frequencies.

In addition, in the above-mentioned embodiment, audio is used to announce the name of the broadcasting station, but it is also possible to visually announce the name of the broadcasting station by using an optical notification means such as a character display using a dot matrix or a light emitting diode. The name of the broadcasting station may be announced in a recognizable manner.

〔Effect of the invention〕

As described above, according to the present invention, the receiving area is determined based on the intensity of the broadcast radio waves received by the broadcast radio wave receiving means and the predetermined radio wave intensity pattern stored in advance in the intensity pattern storage means, and Since the corresponding broadcasting station name is read out from the frequency-broadcasting station name storage means based on the area determination information and frequency information and announced, it is easy to tune into any broadcasting station in any area. You can know the name of the broadcasting station.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a conventional receiver, FIG. 2 is a block diagram showing an example of a receiver according to the present invention, and FIG.
The figure is a block diagram showing another embodiment of the invention. (1)...Reception circuit, (2)...Detection circuit, (3)
...Amplification circuit, (4)...Speaker, (5)...
Control circuit, (6)... Reception frequency setting circuit, (7).
... Reception frequency strength measurement circuit, (8) ... Reception pattern storage circuit, (9) ... Frequency data storage circuit, 00
)... Comparison circuit, αF... Reception area determination circuit, ■...
・Frequency - broadcasting station name memory circuit, decoy...speech synthesizer, circle...sound memory. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Masuo Oiwa Procedural Amendment (Voluntary) 20 Name of invention Receiver 3, Representative Hitoshi Katayama of the person making the amendment Department 4 Agent 5, ``Scope of Claims'' and ``Invention Detailed explanation of each column of J. 6. Contents of amendment A Specification: (1) #The description of the scope of fraudulent claims is amended as shown in the attached sheet. (2) Page 5, line 13 L1, page 8 6th line 1]; “μ
HzJ and r M Hz J and 3F city. (3) Page 6, line 4; Change the word ``gaeshi'' to ``gaeshi.'' (4) Page 9, line 3: ``r (11) ke,'' is corrected to ``r (11) is''. 2 Attachment Claims r(+) after amendment a radio wave intensity detecting means for detecting the intensity of the broadcast radio waves received by the broadcast radio wave receiving means; and a frequency data storage means for storing in advance frequency information of broadcast frequencies of broadcast stations corresponding to a plurality of predetermined regions. , a reception pattern storage means for storing a pattern of radio field intensity detected by the radio field intensity detection means; a receiver 4f stored in the reception pattern storage means; reception area determination means for determining which of the plurality of predetermined reception areas the area corresponds to and outputting area determination information when determining the area; and for each of the predetermined reception areas. , frequency-broadcasting station name storage means for pre-storing a predetermined broadcasting station name in correspondence with the frequency; A broadcasting station name reading means for reading a corresponding broadcasting station name from the broadcasting station name storage means, and a broadcasting station name notifying means for notifying the broadcasting station name read by the broadcasting station name reading means. Receiving machine. (2) The receiver according to claim 1, wherein the radio field intensity pattern of the receiving frequency is updated when the user changes the receiving broadcasting station. (3) The receiver according to claim 1, wherein the radio field intensity pattern of the reception frequency is updated at the reception middle time. (4) The receiver according to claim 1, wherein the radio field intensity pattern of the receiving frequency is updated when the power is turned on. (5) The receiver according to claim 1, wherein the radio field intensity pattern of the receiving frequency is updated when the user operates a switch. (6) 6 Compare the frequency information with sufficiently strong radio wave strength selected from the reception pattern storage means and the frequency information in the area selected from the frequency data storage means, and select at least two AM broadcasting stations, FM broadcasting stations, etc. Claims 1 and 2 are configured so that when one broadcasting station matches, the area with the most matching frequencies is determined to be that area.
3. The receiver according to item 3, item 4, or item 4. ”

Claims (6)

[Claims] (1). Broadcast radio wave receiving means for receiving broadcast radio waves; Receiving frequency setting means for setting a receiving frequency of the broadcast radio wave receiving means; and For detecting the intensity of the broadcast radio waves received by the broadcast radio wave receiving means. A radio field intensity detection means, a frequency data storage means for pre-storing frequency information of broadcast frequencies of broadcasting stations corresponding to a plurality of predetermined regions, and a pattern of radio field intensity detected by the radio field intensity detection means. When the reception pattern storage means and the radio wave intensity pattern of the reception frequency stored in the reception pattern storage means are updated, the reception area at that time is determined from the predetermined area. Any area that receives J number! IC#, reception area determination means that determines whether the IC# is correct and outputs area determination information when determining the area; Based on the frequency-broadcasting station name storage means to be stored, the frequency information from the reception frequency setting means and the region determination information from the region determination means, the corresponding broadcasting station name from the frequency-broadcasting station name storage means. What is claimed is: 1. A receiver comprising: a broadcasting station name reading means for reading out the broadcasting station name; and a broadcasting station name notifying means for notifying the broadcasting station name read by the broadcasting station name reading means. (2) The receiver according to claim 1, wherein the radio field intensity pattern of the receiving frequency is updated when the user newly changes the receiving broadcasting station. (3) The receiver according to claim 1, wherein the radio field intensity pattern of the reception frequency is updated at regular intervals during reception. (4) Update the radio field strength pattern of the above reception frequency by m
2. The receiver according to claim 1, which is configured to perform the operation when A is turned on. (5) The receiver according to claim 1, wherein the radio field intensity pattern of the receiving frequency is updated when the user operates a switch. (6) Compare the frequency information selected by the reception pattern storage means and having a sufficiently strong nine radio waves with the frequency information in the area selected by the frequency data storage means,
Claim 1, wherein an area where at least two AM broadcasting stations and one FM broadcasting station match, and where there are many frequencies where Km also matches, is determined to be another area;
The receiver according to item 2, 3, or 4.