JP2893026B2 - Receiving machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a receiver such as a PLL synthesizer receiver capable of selectively receiving a frequency of a broadcast station stored in a memory.

BACKGROUND ART Conventionally, a PLL synthesizer receiver is generally configured as shown in FIG. That is, the receiving circuit unit 21 has a PLL circuit 22 for selecting the receiving frequency, and the frequency dividing ratio of the programmable frequency divider of the PLL circuit 22 is controlled by the control unit 23 to receive the signal at the desired receiving frequency. Is performed. Reference numeral 24 denotes operating means for inputting an operation to the control means 23; 25, a memory means for storing a frequency of a desired broadcast station; and 26, a display for displaying a frequency or the like. Here, the operation means 25 includes a band key for selecting a frequency band and a frequency
In addition to a tuning key for downing, a read key such as a memory key for writing in a preset memory or a scroll key (or a key for selecting the required number of memories) for reading stored frequencies is provided.

Then, a broadcast station having a desired reception frequency is tuned and listened to by the band key and the tuning key of the operation means 24, and the tuned reception frequency is written into the memory means 25 by the memory key to be used as a preset memory. The preset reception frequency can be read out and received by operating a readout key.

However, in the above-mentioned conventional device, the reception frequency of a desired broadcast station is stored in the memory means, and can be read out whenever necessary and immediately received. When the receiver is used in an area, the receiving frequency of the broadcasting station preset before cannot be used, and there is a trouble that it is necessary to receive while searching for the frequency of the broadcasting station in the area. . At that time, if the frequency of the broadcasting station in the area is not known, there is no other way than to search while transmitting the frequency sequentially.

DISCLOSURE OF THE INVENTION In view of such a conventional problem, the present invention can immediately select the frequency of a broadcasting station in a travel or business trip area, and the operation thereof is easy. The purpose of the present invention is to provide a receiver that can write in any broadcasting station.

In order to solve the above problems, a receiver according to the present invention is: (1) A receiver capable of selectively receiving a frequency of a broadcast station stored in a memory. A first memory means for storing a frequency, a second memory means for writing a frequency of an arbitrary broadcast station, and a broadcast station in a specific area stored in the first memory means, or First selecting operation means for selecting whether to tune to a broadcast station of an arbitrary memory written in the second memory means, and the first memory means or the second memory means by the first selecting operation means Is selected, a second selection operation means for selecting a required broadcast station frequency, and the first memory corresponding to the selection between the first selection operation means and the second selection operation means Means or second
Channel control means for controlling reception of a frequency of a desired broadcast station from the memory means. The first selection operation means selects an arbitrary memory and can select an arbitrary broadcast station. A station switch, and a memory switch for writing the frequency of the broadcasting station selected by the tuning switch to the second memory means, wherein the tuning control means corresponds to the operation of the tuning switch and the memory switch. The frequency of the selected broadcasting station is written in the second memory means.

(2) In the above configuration, the second selection operation means includes a band switch for switching a frequency band and a memory selection switch for selecting a frequency of a broadcast station stored in each band.

(3) In the above configuration, a display having a region name display section for a plurality of areas and a reception frequency display section is provided,
When the first selection operation means is operated, the area name is selectively displayed on the area name display section in response to the selection operation, and the frequency of the broadcasting station selected when the second selection means is operated is displayed as the reception frequency. This is configured so as to be selectively displayed on a section.

(4) Further, in the above configuration, there is provided a display having a plurality of area name display sections and a reception broadcast station name display,
When the first selection operation means is operated, the area name is selectively displayed on the area name display section in accordance with the selection operation, and the broadcast station name of the broadcast station selected by the second selection operation means is broadcast. It is configured to be selectively displayed on the station name display section.

(5) In the above configuration, the first selection operation means includes an area display for displaying a reception area stored in the first memory means and a selectable state of a frequency of a broadcast station in the area, And a free display for displaying a selectable state of the reception frequency stored in the memory means. The tuning control means selects the area by the first selection operation means in the non-receiving state or the receiving state. It is configured to be possible.

(6) In the above configuration, the tuning control means may select a broadcasting station arbitrarily by a tuning switch when the first selection operation means selects a region of the first memory means. Is stopped, and when the second memory means is selected, it is possible to control the desired reception frequency to be writable in the memory means by operating a memory switch.

(7) A receiver capable of selectively receiving a prerecorded reception frequency of a broadcast station by a predetermined operation,
First memory means for storing the frequency of a broadcasting station in each of a plurality of areas, second memory means capable of writing the frequency of an arbitrary broadcasting station, and detection of tuning at a certain level or higher A tuning detecting means for selecting whether to select a broadcast station in a specific area stored in the first memory means or to select a broadcast station in an arbitrary memory written in the second memory means; A first selection operation means, and a second selection operation means for selecting a required broadcast station frequency in a state where the first memory means or the second memory means is selected by the first selection operation means. An automatic search start operation means for specifying a use area; and a sweep signal is started by a start signal of the automatic search start means. Channel selecting control means for comparing the frequency with the frequency stored in the memory to select a matching receiving area and determining the area, wherein the channel selecting control means operates the first automatic search start operating means to operate the first search area. Irrespective of the operation of the selection operation means, the reception area is selected and fixed, thereby controlling the frequency of the broadcasting station in the area to be receivable.

(8) In the configuration of the above 7, the second selection operation means has a band switch for switching a frequency band, and a memory selection switch for selecting a frequency of a broadcast station stored in each band. After the reception area selected by the operation of the automatic search start operation means is determined, it is possible to select a band and a broadcast station.

(9) In the configuration of the above 7, in a state where the first selection operation means selects an arbitrary memory, a tuning switch capable of selecting an arbitrary broadcasting station, and a broadcasting station selected by the selecting switch. A memory switch for writing the frequency of the broadcast station to the second memory means, and by controlling the tuning control means, the frequency of the broadcasting station selected in response to the operation of the tuning switch and the memory switch is set to the second frequency. It is configured to write in the memory means.

(10) In the configuration of the seventh aspect, the tuning detection means includes an intensity detection circuit for detecting that the intensity of the received signal by amplitude detection of the intermediate frequency signal is equal to or higher than a certain level, and a frequency value of the intermediate frequency signal. And a frequency detection circuit for detecting whether or not the frequency of the received signal is equal to that of the received signal.

(11) In the configuration of the above 7, after the start of the sweeping by the automatic search start operation means, a display means for automatically displaying that the receiving area is being searched or a display when the search becomes impossible. It has.

(12) A receiver capable of selectively receiving a frequency of a broadcast station stored in advance, wherein the frequency memory means stores the frequency of the broadcast station in each of a plurality of areas, Tuning detection means for detecting the signal strength of the broadcast station, selection operation means for selecting the frequency of the broadcasting station required by the memory means, and broadcasting in the desired area stored in the memory corresponding to the selection of the selection operation means. Tuning control means for receiving the frequency of the station, the tuning control means, when the memory selection operation by the selection operation means, the level of the selected broadcast station is below a certain level by the tuning detection means In this case, the broadcast station is skipped and the frequency of the next broadcast station stored in advance is received.

According to the present invention, with the above-described configuration, the frequency of the broadcast station in the area stored for each reception area can be selected by the selection operation means, and the area is selected by the first selection operation means and the second operation is performed. The memory of the desired broadcasting station is selected by the selection operation means. Further, the area, frequency and / or broadcast station name corresponding to the selection by the selection operation means are displayed on the display device at a glance.

In addition, the selection of the area by the first selection operation means is performed only in the non-reception state, and it is possible to prevent the broadcast station from being changed arbitrarily due to erroneous operation of the first selection operation means during reception.

In addition, the sweep is started by the automatic search start signal, and the received frequency is stored every time the sweep is stopped by the detection of the tuning detection means, and the memory of the received frequency is compared with the frequency of the broadcasting station in a plurality of regions stored in advance. By doing so, it is possible to select a matching reception area to enable reception of a broadcasting station in that area, and display that the search is being performed by the display means.

If the level of a reception signal of a preset broadcast station in a selected reception area is equal to or lower than a certain level, the broadcast station is skipped.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the receiver of the present invention, FIG. 2 is a memory configuration diagram of the first memory means, FIG.
FIG. 4 is a circuit diagram showing a specific example of the selection operation means, FIG. 4 is a front view showing the configuration of a display unit of the display, FIG. 5 is a flowchart showing the same, FIG. 6 is a block diagram showing a second embodiment. Fig. 7, Fig. 7 is a detailed block diagram of the tuning detecting means, Fig. 8 is a circuit diagram showing a specific example of the selecting operation means, Fig. 9 is the same flowchart, Fig. 10 is a flowchart of the third embodiment, Eleventh
(A) to (c) are configuration diagrams showing another embodiment of the first memory means, and FIG. 12 is a block diagram showing a conventional example.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a first embodiment of a receiver according to the present invention will be described with reference to the drawings. FIG. 1 is a block diagram thereof, FIG. 2 is a block diagram of a first memory unit, FIG. 3 is a block diagram of a selection operation unit, and FIG. 4 is a front view showing a display on a display.

In the figure, reference numeral 1 denotes a receiving circuit unit, and 2 denotes a PLL circuit for determining the receiving frequency. The receiving frequency, that is, the broadcasting station is determined by controlling the frequency division ratio of the programmable frequency divider of the PLL circuit 2. . 3 is a tuning control means for controlling the PLL circuit 2, 4 is a memory unit, 5 is a selection operation means for selecting a frequency of a reception broadcasting station, and 6 is a display, which corresponds to the operation of the selection operation means 5. The tuning control means 3 outputs a control command of the reception frequency to the PLL circuit 2 and a required display command to the display 6, and also issues a write or read command to the memory unit 4.

The control means 3 includes a CPU 7, a PLL control means 8 for controlling the frequency division ratio of the PLL circuit 2 in accordance with a command from the CPU 7, and a reception frequency written or read in the memory 4 in accordance with a command from the CPU 7. Memory input / output means 9 for performing operations, an operation input means 10 for sending a code signal to the CPU 7 in response to an operation of the operation unit 5, and a display drive means 11 for controlling display of the display 6 in accordance with a command of the CPU 7. Have.

The memory unit 4 includes, for each of a plurality of regions, a first memory unit 4a that stores a region and a frequency of a broadcasting station in the region, and a second memory unit 4b that can write and read a frequency of an arbitrary broadcasting station. And Then, above the first memory means 4a, a local memory group A ₁ to A _n, the frequency memory group a ₁ ~a _n memory have been regional broadcasting stations in each of the region memory group A ₁ to A _n It has bets have arbitrarily write readable frequency memory group b ₁ ~b _n in the second memory means 4b. In addition, the above regional memory groups A ₁ to
The A _n, as shown in FIG. 2, AM band, FM band, in each frequency band of the TV band has a frequency memory group of a ₁ ~a _n,
It is suitably determined by the number of broadcast stations in each region A ₁ to A _n, in which advance memory. The memory is configured as a read-only memory that is not rewritable, and for a frequency of a broadcasting station different for each region, there is no possibility that a memory in a region whose reception frequency is not known is rewritten by mistake. It is like that.

Next, the selection operation means 5 is connected to the first memory means.
First selection operating means 5a, the memory has been the frequency memory group a ₁ ~a _n or b to select the second memory means 4b capable preset memory are regional memories A ₁ to A _n and free to 4a _{1 to} b _n, that is, a second selection operation means 5b for selecting a required frequency of a broadcasting station. Here, the memory as the second selection operating means 5b, AM band, FM band, the band switches for switching the frequency band of the TV band from the frequency memory group a ₁ ~a _n and b ₁ ~b _n in each band band And a memory select switch for selecting and reading the desired desired frequency. The read memory select switch is configured by a scroll method using one key or a plurality of specific keys. Further, when the second memory means 4b is selected by the first selection operation means 5a, a tuning switch comprising an up / down switch capable of arbitrarily selecting a reception frequency, and an optional switch for the second memory means 4b. And a write memory switch for writing a desired broadcast station frequency. In addition, a power switch for turning on / off the power and other necessary operation switches are provided.

FIG. 3 shows an example in which the selection operation means 5 is constituted by a matrix key switch. That is, the key K ₁
And ~K _9, pin by the pressing the corresponding and a terminal T ₁ through T ₇ for providing a signal inputted to the operation input means 10, the pressing of the operation input unit 10 is the key K ₁ ~K ₉ it is to generate the code signal corresponding to the short circuit of the T ₁ through T _7. Here, K ₁ is a power switch key, K ₂ and K ₃ are up / down channel selection switch keys, K ₄ is a hand switch key, K ₅ is a memory selection switch key, K ₆ is a region selection switch key, K ₇ Is a memory switch key for writing. Then, the key K ₆ is a first selection operating means 5a described above, the second selection operating means
A memory selection switch key K ₅ and the band switch key K ₄ that corresponds to 5b, after region selection key K _6, and the desired band switching by the key K _4, the selection of the desired broadcast station by key K ₅ Do it. Incidentally, by the operation means is also used for the key K ₈ and K ₉ and K ₉ and K _7, the clock means having a tuning control unit 3 has a timer and alarm functions, as described below.

Next, the display 6 will be described with reference to FIG. The display 6 has an area display section 12 indicating a reception area, a band and / or am / pm display section 13, a frequency or time display section 14, a memory channel display section 15, and another function display section 16. doing. Above area display
12 is Tokyo (TOKYO) 12a, Nagoya (NAGOYA) 12b, Osaka (O
From the display of SAKA) 12c, Shinkansen (JR) 12d and free (F) 12e, the first memory means that Tokyo 12a to Shinkansen 12d is described above
Corresponds to a display of local memory group A ₁ ~A _n in 4a, free
12e corresponds to the display of the second memory means 4b. The display unit 13 displays an AM band 13a, an FM band 13b,
Along with the reception band display section of the band 13c, it has a display section of AM13a in the morning (also used as the AM band at the time of reception) and a display section of PM13d in the afternoon as a clock display. The display unit 14 has a colon 14a for displaying time and a dot 14b for displaying a decimal point when displaying frequency, along with a segment for displaying numbers, and displays time when not receiving, and frequency (when receiving AM and FM). KHz or MHz)
, And the channels (1 to 12 channels) are displayed when receiving TV. In addition, the display unit 15 includes the area display units 12a
In selecting ~12d and free display part 12e, as they display each memory group A ₁ to A _n and a memory frequency of memory channel 4b (above a ₁ ~a _n or b ₁ ~b _n, that It has a display (M) 15a indicating a memory reception state and each memory channel display section 15b.The other display section 16 has a display 16a indicating an alarm time setting, a display 16b indicating an alarm after a predetermined time, and a decrease. And a display 16c indicating a voltage, that is, a warning of battery replacement.

Here, the relationship with the clock function will be described with reference to FIG. 3 and FIG. During the off power switch key K _1, together with the display unit 13 shows the morning and afternoon of the time by the display unit 13a and 13b, the display unit 14 to 12: 00-11: displaying the 59 time. And, it is the adjustment of the current time by the pressing of the memory shared up and down key while pressing the time set key K ₇ of K _2, K _3. Further alarm key K ₈
Up and down keys of the alarm after a predetermined time by pressing, and which displays by lighting of the display 16b that is being set, while pressing the key K ₈ of
The predetermined time (1 to 180 minutes) can be set by pressing K ₂ and K ₃ . In addition, the display unit by pressing the standby key K ₉
Switching the current time of 14 at the alarm time, the hold down the key K ₉ by pressing the up or down key K _2, K ₃ can adjust the alarm time, the display 16a by the press release of the key K ₉ Lights up to show that setting is in progress.

Next, the channel selection operation will be described with reference to the flowchart of FIG. First, the power is determined whether the ON state or OFF state by the key K ₁ in step S _1, to determine the on and off of the area select key K ₆ proceeds to step S ₂ if off, if off return to the original, the process proceeds to the next step S ₃ by turning. In step S _3a, the key K ₆ regional memories A ₁ to A _n when on (Note that the 4 n = 4 in the embodiment shown in the drawing) region memory that has been selected among the destination
Determining whether the A _1, if A ₁ in step S _4a with selecting the next local memory A _2, so that the lighted display area display unit 12b at step S _5a. On the other hand, the process proceeds to A ₁ unless the next step S _3b in step S _3a (not shown), will proceed to step S _3n sequentially same decision, YES in the same manner as described above step S _3b to S _3n If it is determined that each step S _4b to S _4n memory group a ₃ ~ in
A _n, as well as select 4b, so that the lighted display area display unit 12c~12e in step S _5b to S _5n. Then, if it is determined in NO in step S _3n, with selecting the area memory A ₁ in step S _6, and thus the lighting display enter the area display part 12a in step S _7. That is, in the power-off state, each time the area selection key K ₆ (in other words, the first selection operation means 5a) is pressed, the memory groups A _{1 to An} and 4b
With the switching, the area display sections 12a to 12e can be sequentially switched and displayed, and one of them is always lit.

Then, in step S _1, when powered on state by pressing the key K _1, become receivable state, the process proceeds to step S _8a. In step S _8a, what is selected from among the local memories A ₁ to A _n is determined whether the A _1, local memory A ₁ proceeds if A ₁ to the next step S _9a Is received. In this step _S9a , the key K
₄ and band switching by operation, performs a reception frequency selection of the desired broadcast station in the area by the selection of the frequency memory a ₁ ~a _n by the operation of the key K _5, the band display 13a~13c and frequency display 14 And a memory channel display 15b so that the broadcast station can be received. On the other hand, sequentially proceeds, each selected region to determine whether the local memory A ₂ to A _n, step S _9b to S if A ₂ to A _n to step S _8b to S _8n if step S _8a NO _Go to _9n
This step S _9b to S in _9n each local memory A ₂ to A _n
Performs the same operation as step _S9a , that is, performs selective reception and display. Further, when it is determined NO in step S _8n proceeds to step S _10, the memory means 4b
In the receiving state (ie, free), and the frequency memory b ₁
The selection of ~b _n carries out in the same manner as described above, the step S ₁₀ in the key K _2, K ₃ can be up and down tuning the reception frequency by, a memory b ₁ a desired frequency by operating the key K ₇
Bb _n can be arbitrarily written (rewritten).

Next, a second embodiment will be described with reference to FIGS. In the figure, the same reference numerals as those in the first embodiment denote the same components.

In FIG. 6, reference numeral 17 denotes a tuning detecting means for detecting whether or not the receiving circuit unit 1 has tuned at a certain level or higher.
Numeral 18 is a tuning input means in the tuning control means 3 for operating the CPU 7 based on the output of the tuning detecting means 17. Reference numeral 4c denotes a third memory unit included in the memory unit 4. The third memory unit is configured to be writable and readable, similarly to the second memory unit 4b, and is used for automatic search for specifying a use area described later. The frequency of the broadcasting station tuned by the sweep is stored in the memory. Reference numeral 5c denotes an automatic search start operation means, which is operated when writing data in the third memory means 4c. The key K ₁₀ shown in FIG.
, And the key K ₁ ~K ₉ is as defined above.

The tuning detecting means 17 takes out the intermediate frequency signal of the receiving circuit section 1 and applies it to the input terminal A, and determines whether or not the intensity of the received signal by amplitude detection of the intermediate frequency signal is equal to or higher than a certain level value. Signal strength detection circuit 17a to be detected
And a frequency detection circuit 17b for detecting that the frequency value is a predetermined value when the DC component (S-curve voltage) of the detection signal of the intermediate frequency signal is within a predetermined voltage range. C supplies the tuning input means 18.

Next, the selection of the receiving area by the automatic search in the second embodiment will be described with reference to the flowchart of FIG. First, in order to identify the areas that are using the receiver to start by operating an automatic search start operation means 5c (key K _10). Then, set the start band at step S ₁₁ (set to fast searchable FM band here), the display unit 6 (and those added as appropriate to the display device of FIG. 4 described above) to the display through the area search lighting (step S _12). Follows step S _13, the minimum value f _min of the FM band, to start sweeping reception at a predetermined frequency interval. For each setting of the frequency, or full round frequency in step S ₁₄ (i.e. f _min ~f _max or ended up) determines, in the case of NO detection of the signal strength detection circuit 17a in the next step S ₁₅ certain level or more when a 1 level occurs, the process proceeds to the next step S _16, wherein when a predetermined value (for example, FM frequency is in the frequency detection circuit 17b is 10.
When 7MHz), proceed to the next step S _17. This step S
_15, YES in the S _16, temporarily stops the sweep of the receiver, step
It writes the received frequency in the third memory means 4c in S _17. In the next step S _18, the third memory means 4c
Write to is determined whether or not the third memory means 4c plurality many write set to the is performed, if made proceed to the next step S _19. On the other hand, including the step S _18, if it is determined NO in step S ₁₅ and S _16, the process returns to step S _13, is performed repeatedly the same operation for the next frequency. And, despite the frequency round (i.e. f _min ~f _max), if it is determined that the set number of write NO in step S _18, YES in step S ₁₄
Side, i.e., the process proceeds to step S _20, turns off the display in the area search, and thereby performing display lighting of the search impossible in step S _21.

In step S _19, local memory group A ₁ to A _n in the first memory means 4a is selected in step S ₂₃ via the following steps S _22, for example, selected areas memory A ₁
The frequency of the frequency memory group a ₁ ~a _n at step S
₁₇ in the third receiving written in the memory means 4c frequency c ₁ ~
c _n are compared with each other, and if they match, step S ₂₄
The reception area is determined. On the other hand, if no match in step S _23, the process returns to step S _19, selects the next local memory A _2, will be compared in step S ₂₃ again via step S _22. Then, the loop of steps S _19, S _22, S ₂₃ are sequentially performed, the memory A ₁ to A _n of all regions of the first memory means 4a is selected, the frequency memory group a ₁ ~a _n And the frequency c _{1 of} the third memory means 4c
Be a to c _n are compared, if they do not match, will proceed from YES in step S ₂₂ to step S ₂₀ side.

When coverage is determined in step S _24, in step S ₂₃ sets the band and the frequency in the region (this band and frequency may be appropriately set, but set by later-described last 1 memory good). And
Then, to turn off the display in area search in step S _26,
Band and the reception frequency and area in step S ₂₇ (region)
Turn on the display. Here, the automatic area search ends, and the area where the receiver is used at that time is automatically searched and the selection ends.

In the above step S _18, the third memory means 4
The reason why writing to c is required to write a plurality of set frequencies is that if there is a broadcasting station of the same frequency in a different area, this must be selected without fail, but it is sufficient for two stations. Whether or not three or more stations are required may be set as appropriate in view of the schedule for opening a broadcasting station in the future.

Next, a third embodiment will be described. This embodiment has the configuration of the flowchart shown in FIG. 10 in the block diagram shown in FIG. 6, and the point is that the tuning detection means 17 is used to select a broadcasting station after the reception area is selected. , A broadcast station tuned below a certain level is automatically skipped.

Hereinafter, description will be made based on the flowchart shown in FIG. First, in step S _31, the selection of coverage memory. It is selected by operation of the operation area selection switch key K ₆ or automatic search key K _10,. Next, in step S _32, it is determined whether the memory selection switch key K ₅ is operated, if it is operated, the process advances to the next step S _33, and repeats the same determination to be operated. In step S ₃₃ to select a frequency memory group a ₁ ~a _n in the area, setting the frequency of the next step S ₃₄ in the selected memory group a ₁ ~a _n, the level of the received signal at that time determined based on the output of the signal strength detection circuit 17a, the process returns to step S ₂₃ at low levels, determines again the next frequency, if beyond the level the reception state proceeds to the next step S _36. That is, step S
_By the judgment of _35, the broadcasting station having a low reception level is skipped.

Next, another embodiment will be described with reference to FIGS. 11 (a) to 11 (c).

First, an example of (a) diagram, the memory a ₁ received ~a _n frequency AM _{1-Am n} in each region memory group _{A 1 ~A n, FM 1 ~FM} n, TV 1 ~T
The broadcast station name N is also stored together with V _n , and this is also to be displayed on the display 6. As an example of the display, it may be displayed as another display unit together with the frequency display 14, or may be displayed instead of the frequency display 14.

Next, an example of (b) diagram is the local memory group A ₁ to A _n, the area per final memory means LM ₁ stores the final receiving frequency before switching of each region when the region selection to L m _n Respectively. This memory means LM _{1 to} LM _n
If there is no, when the respective regional memory groups A _{1 to An} are switched, the first set receiving frequency is set to be, for example, the first memory a ₁ of the AM band.
By having LM ₁ to L m _n areas every last memory means as mentioned above, that the frequency of the last of a broadcast station that best listening in each region leave the memory, can be selected with the highest priority at the time of switching the region It is. (C) In the example of the figure, in addition to the example of the figure (b), final memory means AM ₀ , RM
₀ and TV ₀ , and the frequency of the last listening broadcast station in the band is stored even if the band is switched for each area.

In the above description, the memory number of the memory frequency to the local memory group A ₁ to A _n of the first memory means 4a a ₁ ~a _n
Described an example where rewriting is not possible.
A ₁ memory group a ₁ ~a _n also in to A _n, second memory means 4b
Group memory b ₁ like the ~b _n, may be rewritten optionally. In this case, of course, those even during local A ₁ to A _n selection, channel selection frequency by the key K _2, K ₃ is configured to be possible.

In the above embodiment, the selection of the local memory group by the first selection operation means (ie, 5a or the key K ₆ ) is enabled only in the non-reception state, but in the reception state (ie, the power-on state). Selection of a regional memory group may be enabled. This is the flow in FIG. 5, the step S ₂ to S _7, it may be inserted after step S _9a to S _9n and S _10.

INDUSTRIAL APPLICABILITY The present invention is configured as described above, and for each of a plurality of regions, the frequency of a desired broadcast station stored in the first memory means that stores the frequency of the broadcast station in the region is stored in the first memory unit. The reception frequency can be received in accordance with the selection of the first selection operation means and the second selection operation means. For example, when the user goes to the area on a trip or a business trip, the reception frequency can be selected without transmitting the frequency. Can be easily and reliably selected and selected by a simple operation without knowing this. In addition, the frequency of the desired broadcast station stored in the second memory means to which the frequency of the arbitrary broadcast station can be written can be similarly received, and the first selection operation means selects the arbitrary memory. Then, a broadcast station receivable in an area where the receiver is used can be arbitrarily selected by a tuning switch. Further, the frequency of the received broadcasting station can be arbitrarily stored in the second memory means by a memory switch. Memory is possible, so that the memory and selection of more broadcast stations can be made by a simple memory selection operation.

In addition, by displaying the selected region or frequency, the receiver can be made more reliable and the current reception status can be easily understood. It becomes convenient.

Further, the first selection operation means performs an area display for displaying a broadcast station selectable state stored in the first memory means and a broadcast station selectable state stored in the second memory means. By selecting the free display, the selected state can be confirmed more reliably by visual recognition.

In addition, when the selection by the first selection operation means selects the area of the first memory means, the selection of the broadcast station arbitrarily performed by the selection switch is stopped, and when the second memory means is selected. By writing the desired reception frequency into the memory means by operating the memory switch, it is possible to prevent a malfunction even if the tuning switch is operated by mistake in the selection state of the specific area. ,
Moreover, there is no possibility that the data is written by mistake.

A tuning detection means for detecting a tuning at a certain level or higher; an automatic search start operating means for specifying a use area; Comparing the reception frequency with the output equal to or higher than the level and the frequency stored in the first memory means to select a matching reception area and determining the reception area irrespective of the operation of the first selection operation means; Thus, the frequency of the broadcasting station in the area can be received, and only by performing the operation of automatic search start, a receivable frequency area in an unknown area can be easily selected. Moreover, during the area search, the display is obvious at a glance, which is very convenient.

In addition, when the level of the received signal of the pre-stored broadcasting station in the selected receiving area is lower than a certain level, the broadcasting station is skipped, so that it is very easy to use in an area where the receiving frequency is not known. Is good.

Continuation of the front page (56) References JP-A-54-31201 (JP, A) JP-A-58-62922 (JP, A) JP-A-61-123321 (JP, A) JP-A-57-69925 (JP) JP-A-57-69924 (JP, A) JP-A-58-66733 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04B 1/06 H04B 1/16 H03J 5/00

Claims (12)

(57) [Claims] 1. A receiver capable of selectively receiving a frequency of a stored broadcast station, the first memory means storing, for each of a plurality of regions, the frequency of a broadcast station in the region,
A second memory means capable of writing a frequency of an arbitrary broadcast station, and a broadcast station in a specific area stored in the first memory means, or an arbitrary memory written in the second memory means. A first selection operation means for selecting whether to select a broadcasting station, and a broadcasting station required when the first memory means or the second memory means is selected by the first selection operation means A second selection operation means for selecting the frequency of the first and second broadcasts, and a desired broadcast from the first memory means or the second memory means corresponding to the selection between the first selection operation means and the second selection operation means. Channel selection control means for controlling the frequency of the station to be receivable; and a channel selection switch capable of selecting an arbitrary broadcast station with the first selection operation means selecting an arbitrary memory; The frequency of the broadcasting station selected by the switch A memory switch for writing the number into the second memory means, wherein the tuning control means sets the frequency of the broadcast station selected in response to the operation of the tuning switch and the memory switch in the second memory means.
A receiver configured to write in the memory means. 2. The apparatus according to claim 1, wherein the second selection operation means includes a band switch for switching a frequency band, and a memory selection switch for selecting a frequency of a broadcast station stored in each band. Receiver. 3. The display device according to claim 1, further comprising a display having a plurality of area name display sections and a reception frequency display section, wherein the first selection operation means is operated in accordance with the selection operation. A receiver configured to selectively display a region name on a name display unit and to selectively display a frequency of a broadcast station selected at the time of operating the second selection unit on a reception frequency display unit. . 4. The display device according to claim 1, further comprising a display having a plurality of area name display sections and a display name of a received broadcast station, wherein the first selection operation means is operated in response to the selection operation. It is characterized in that the area name is configured to be selectively displayed on the area name display section, and the broadcast station name of the broadcast station selected by the operation of the second selection operation means is selectively displayed on the broadcast station name display section. Receiver. 5. The area display according to claim 1, wherein the first selection operation means displays a reception area stored in the first memory means and a selectable state of a frequency of a broadcasting station in the area. And a free display for displaying a selectable state of the reception frequency stored in the second memory means. The channel selection control means does not receive the selection of the area by the first selection operation means. A receiver characterized in that it can be configured in a state or a reception state. 6. The channel selection control means according to claim 1, wherein the selection of the broadcasting station arbitrarily performed by the selection switch is performed when the selection by the first selection operation means selects the area of the first memory means. The present invention is characterized in that, when the second memory means is selected, it is possible to control such that any desired reception frequency can be written into the memory means by operating a memory switch. Receiving machine. 7. A receiver which is capable of selectively receiving a prerecorded reception frequency of a broadcast station by a predetermined operation, wherein the first memory stores, for each of a plurality of regions, the frequency of the broadcast station in the region. Memory means, second memory means capable of writing the frequency of an arbitrary broadcast station, tuning detection means for detecting tuning at a certain level or higher, and broadcasting of a specific area stored in the first memory means A first selection operation means for selecting whether to select a station or a broadcast station in an arbitrary memory written in the second memory means; Selection operation means for selecting a required broadcast station frequency in a state where the memory means or the second memory means is selected, automatic search start operation means for specifying a use area, and automatic search start means According to the start signal of Then, the sweep is started, the reception frequency based on the output equal to or higher than a certain level by the tuning detection means is compared with the frequency stored in the first memory means, and the reception area that matches is selected and the area is determined. The automatic search start operation means selects and confirms a reception area irrespective of the operation of the first selection operation means. A receiver configured to control the frequency of a station so that reception is possible. 8. The automatic operation system according to claim 7, wherein the second selection operation means includes a band switch for switching a frequency band, and a memory selection switch for selecting a frequency of a broadcast station stored in each band. A receiver characterized in that it is possible to select a band and a broadcast station after the reception area selected by the operation of the search start operation means is determined. 9. A tuning switch according to claim 7, wherein said first selecting operation means selects an arbitrary memory, and a tuning switch capable of selecting an arbitrary broadcasting station, and a broadcasting station selected by said tuning switch. A memory switch for writing the frequency to the second memory means, and the control of the tuning control means for controlling the frequency of the broadcasting station selected in response to the operation of the tuning switch and the memory switch, by the second memory A receiver configured to write to a means. 10. An apparatus according to claim 7, wherein said tuning detecting means includes an intensity detecting circuit for detecting that the intensity of the received signal by amplitude detection of the intermediate frequency signal is equal to or higher than a predetermined level, And a frequency detection circuit for detecting whether or not the received signal is the same as the received signal. 11. A display device according to claim 7, wherein after the start of sweeping by the automatic search start operation means, the display means for automatically displaying that the receiving area is being searched or for displaying when the search becomes impossible. A receiver comprising: 12. A receiver capable of selectively receiving a frequency of a broadcasting station stored in advance, comprising: frequency memory means for storing the frequency of a broadcasting station in each of a plurality of regions; Tuning detection means for detecting the signal strength of the broadcast station, selection operation means for selecting the frequency of the broadcasting station required by the memory means, and broadcasting in the desired area stored in the memory corresponding to the selection of the selection operation means. Tuning control means for receiving the frequency of the station, the tuning control means, when the memory selection operation by the selection operation means, the level of the selected broadcast station is below a certain level by the tuning detection means In the receiver, the broadcast station is skipped and the frequency of the next broadcast station stored in advance is received.