JPH0644239U - Receiving machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To enable to automatically select and set the blocked reception area in which the reception frequency is registered. [Structure] A reception frequency is preset for each specific area, all reception frequencies registered in the area are transferred to a station memory by calling the specific area, and the transferred reception frequency is selected and specified. A receiver adapted to receive a station, automatically sweeps the reception frequency for each area to obtain the number of receiving stations in the area (step 22), and determines the area with the largest number of receiving stations in the receiving area. It is automatically selected as an area (step 23),
The reception frequency of the area is transferred to the station memory (step 24). After that, the broadcast station registered in this area stored in the memory transferred to this station memory becomes a receiving station.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a receiver capable of receiving an AM / FM station, a TV station, etc., and particularly to a receiver in which a large number of reception frequencies are preset for each preset reception area.

[0002]

[Prior art]

 Receivers that can receive AM / FM stations and TV stations each have a large number of reception channels, and the reception frequency differs depending on the area. Therefore, reception is performed in a specific area (area), for example, in each major city. There is known a receiver in which possible reception frequencies are preset for each area.

When using this receiver, it is first determined which receiving area the area to be received belongs to, and when the receiving area can be specified, the receiving area is selected. Then, the reception frequency registered in advance in the reception area becomes the reception station in the area, and the broadcast can be received by selecting an appropriate station.

If a method of calling such a preset receiving station for each receiving area is called a receiving area calling method, this receiving area calling method requires the frequency of the broadcasting station desired to be listened to in advance and presetting the frequency. In addition to omitting it, there is an advantage that even if the frequency of the local broadcasting station is not known, the local broadcasting station can be selected correctly immediately without checking the frequency of the receiving station.

The specific receiving area is divided into blocks for each major city as described above, and the identification number of the receiving area is assigned a numeric keypad number according to the receiving area as shown in FIG. 3, for example. It is used as an area call number. For example, if you want to receive a broadcast in the Tohoku area when you have blocked the area in Japan into multiple reception areas, enter the area call number "2" to receive multiple receptions that are preset in the Tohoku area. The frequency (AM / FM station and / or TV station) is transferred to the station memory.

Therefore, thereafter, unless the receiving area is changed, only the specific receiving station registered in advance as the Tohoku area stored in the station memory can be received.

The area call number may be a city code or a postal code of a telephone number other than the number corresponding to the above-mentioned ten keys.

[0008]

[Problems to be solved by the device]

 When this area call method is adopted, a specific area call number is pre-assigned according to the receiving area as shown in FIG. 3, so unless the person who has correctly grasped the relationship between the area call number and the receiving area. I can't call the reception area I want.

A receiver purchaser or enthusiast may store the relationship between the receiving area and the area call number as shown in FIG. 3, but normally the relationship between the receiving area and the area call number is stored. I often don't remember. Therefore, the area call function is not fully used.

Since it seems that there are few mistakes in using the area call number that is familiar to us, it is possible to use the city code of the telephone number or the postal code as described above. Conceivable. However, it is extremely rare to correctly remember the area code and postal code of telephone numbers in areas far from my home.

Therefore, there is no guarantee that the receiving area belonging to the area can be selected without fail, and normally, the desired receiving area is selected only after repeating the receiving area selection several times. Is relatively troublesome.

Therefore, the present invention solves such a conventional problem, and proposes a receiver capable of automatically selecting a reception area belonging to the reception area.

[0013]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, in the present invention, the reception frequency is preset for each specific reception area, and all reception frequencies registered in the reception area by calling a specific reception area are stored in the station memory. In the receiver that is transferred to the receiver and selects the transferred reception frequency to receive a specific station, the reception frequency is automatically swept for each reception area and the number of reception stations in that reception area is calculated. The receiving area with the largest number is automatically selected as the receiving area in that receiving area, and the receiving frequency is preset in advance for each specific receiving area so that the receiving frequency of the receiving area is transferred to the station memory. By calling the reception area, all reception frequencies registered in the reception area are stored in the station memory. Is transferred, and is characterized in that it has a so that to receive the particular station selects the transferred reception frequency.

[0014]

[Action]

 As shown in FIG. 2, a predetermined first reception area in the registered reception areas is first called, and the reception frequencies registered in the reception area are sequentially swept to detect the number of reception stations ( Steps 21 and 22). For example, the number of receiving stations in the AM band is calculated. In addition to the AM band, the reception frequencies of the FM band and the TV band are sequentially swept to obtain the number of receiving stations in the same manner. The number of receiving stations for all the bands registered in the receiving area is calculated, and the sum of them is calculated (step 22).

The calculation of the number of receiving stations is performed for all the registration areas, and the receiving area having the largest number of receiving stations among them is set as the receiving area in the receiving area (step 23). Therefore, the reception frequency of the selected reception area is transferred to the station memory 16 shown in FIG. 1 (step 24). After that, only the stations stored in the station memory 16 can be designated and received.

[0016]

【Example】

 Next, an example of a receiver according to the present invention will be described in detail with reference to the drawings. In the receiver 10 shown in FIG. 1, the reception signal received by the antenna 11 is demodulated in the reception circuit 12 into an audio signal and then supplied to the speaker 13. The receiving circuit 12 includes an AM / FM tuner 12A and a TV tuner 12B in this example, and can be received by an FM station and a TV station including an AM station.

Reference numeral 14 denotes a control unit that controls various controls of the receiver 10 and is composed of a CPU. Reference numeral 15 denotes a memory (ROM) in which various control programs are built in. Here, a control program for realizing an area automatic setting function described later and a plurality of receiving areas and their receiving areas as shown in FIG. 3 are provided. , Which is a broadcasting station existing in the United States of America, stores preset preset reception frequencies.

Data relating to a specific reception area that has been area-called and a reception frequency preset in the reception area is transferred to a station memory (eg, RAM) 16 and stored therein.

Reference numeral 17 is a ten-key pad provided on a keyboard (not shown) from which input instructions such as band switching and channel selection are performed, and a specific reception frequency is previously set for each specific reception area. The (broadcasting station) calls the preset reception area and transfers the reception frequency and the like to the station memory 16 to input the area automatic selection mode. The CPU 14 has means for performing such area automatic selection. In this example, this is realized by software processing.

Reference numeral 18 denotes a display unit composed of an LCD or the like, on which a reception channel, a reception frequency and the like are displayed. Reference numeral 19 is a band switch.

The reception area is divided into blocks for each major city (district) as shown in FIG. 3, and all AM / FM / TV stations that can be received in that area are preset.

A processing program for realizing the reception area automatic setting processing of automatically calling the reception area for each of the blocked reception areas and setting the reception area in the station memory 16 will be described with reference to FIG.

In the present invention, the number of broadcasting stations that can be received in a certain receiving area (the number of receiving stations) is usually larger than the number of stations that can receive the broadcasting stations in the adjacent receiving area, and the automatic reception area The selection is made.

First, a predetermined first reception area of the registered reception areas is called (step 21). For example, when 10 reception areas are registered in advance, the reception areas are called in order from the smallest area call number.

First, the reception frequencies registered in the reception area called first are sequentially swept to detect the number of receivable stations (reception station number) (step 22). First, find the number of receiving stations in the AM band. Next, the number of receiving stations that can be received in the area is obtained by sweeping only the registered receiving frequency of the FM band. Finally, the same frequency sweep is performed for the reception frequency of the TV band and the number of reception stations at that time is obtained. The total sum is obtained from the number of receiving stations for all bands.

This calculation of the number of receiving stations is performed for each registered receiving area, and the magnitude of the total number of receiving stations in the receiving area performed immediately before is compared, and only the receiving area having the largest number of total receiving stations is set as the next candidate. The next candidate receiving area and the number of receiving stations are stored in a register (not shown) or the like (step 23). Since this size discrimination processing is sequentially performed for all receiving areas, the number of receiving stations in the receiving area remaining in the register is the largest.

A large number of receiving stations in a specific receiving area means that the specific receiving area has the highest probability of being located in the finally remaining receiving area. The receiving area having the largest number is selected as the receiving area in the specific receiving area, and the receiving frequency registered in the selected receiving area is transferred to the station memory 16 and stored therein (step 24). After that, only the stations stored in the station memory 16 can be designated and received.

Although a specific example of the processing for discriminating the number of receiving stations in each reception area is not described, the processing for discriminating the size is performed by the discrimination processing method disclosed in, for example, “Japanese Utility Model Publication No. 1-63223”. It can be realized if applied.

In the example of FIG. 2, the reception frequency is automatically swept for all the bands of AM / FM / TV and the reception area is automatically selected. However, only the band of AM / FM / TV is selected. The final reception area may be selected by sweeping the reception frequency to obtain the number of reception stations and comparing only in a single band. However, this selection of the receiving area using only a single band may cause the wrong receiving area to be selected depending on the receiving area where the receiving area is selected, but the TV band is specified as the single band. In most cases, the receiving area can be selected correctly.

The AM and FM bands may be used instead of a single band to select the reception area.

[0031]

[Effect of device]

 As described above, according to the present invention, the receiving frequency is preset for each receiving area, and the receiving frequency that is preset in the receiving area can be selected by calling the receiving area. The receiving area used in is automatically selected.

According to this, it is possible to accurately and automatically select the receiving area covering the area regardless of which area the receiver is operated. Therefore, it has the feature that it is possible to surely eliminate the erroneous operation of receiving area selection that occurs when you do not remember a specific area call number or you memorize it by mistake.

[Brief description of drawings]

FIG. 1 is a system diagram showing an example of a receiver according to the present invention.

FIG. 2 is a flowchart showing an example of processing for area call.

FIG. 3 is a diagram showing a relationship between an area call number for a blocked reception area and a reception frequency registered in the reception area.

[Explanation of symbols]

 10 receiver 12 receiving circuit 14 CPU 15 program memory 16 station memory 17 input section 18 display section

Claims (3)

[Scope of utility model registration request] 1. A reception frequency is preset for each specific reception area, all reception frequencies registered in the reception area are transferred to a station memory by calling the specific reception area, and the transferred reception frequencies are transferred. In a receiver that selects to receive a specific station, the receiving frequency is automatically swept for each receiving area to obtain the number of receiving stations in that receiving area, and the receiving area with the largest number of receiving stations is received. A receiver comprising means for automatically selecting a reception area in a region and transferring a reception frequency of the reception area to the station memory. 2. The detection of the number of receiving stations is AM / FM / TV.
2. The receiver according to claim 1, wherein the reception is performed for any one of the reception frequency bands. 3. The number of receiving stations is detected by AM / FM / TV.
2. The receiver according to claim 1, wherein it is performed for all of the reception frequency bands.