JPH0377433A - On-vehicle acoustic equipment - Google Patents

Abstract

PURPOSE:To evade such inconvenience as operation complicating by transferring to a preceding source automatically when a radio receiver main body executes seek operation, and cannot select a reception station having an electric field strength of a prescribed value or over. CONSTITUTION:A 1st storage circuit 9 stores a source having supplied its output to a speaker section 7 before an AM radio receiver main body 1 or an FM radio receiver main body 2 enters the seek operation as a source data. Even when the seek key of an operation section 6 is operated and the AM radio receiver main body 1 or the FM radio receiver main body 2 cannot select a reception station having an electric field strength of a prescribed value or over, any of the AM radio receiver main body 1, the FM radio receiver main body 2 and a CD player main body 3, a DAT recorder main body 4 and a C cassette recorder main body 5 or the like is selected to set the operating mode. Thus, the operation to stop the seek operation is not required.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention comprises an AM radio receiver main body, an FM radio receiver main body, or an AM radio receiver main body, an FM radio receiver main body, and other audio equipment, etc. The present invention relates to an in-vehicle audio device.

[Prior art] Conventionally, radio receiver bodies (AM radio receiver body and FM radio receiver body)
If you want to select another receiving station while listening by selecting a receiving station on the radio receiver (including the radio receiver itself), if you operate one of the tuning keys on the operation panel, such as the seek key, the radio receiver The main body performs a seek operation and selects a receiving station having a field strength value greater than or equal to a predetermined value.

Therefore, it is possible to listen to the program of the receiving station selected by the seek operation.

However, if it is not possible to select a receiving station with a field strength value greater than or equal to a predetermined value even after performing a seek operation, the same seek operation is performed by lowering the predetermined value one after another, so that one of the receiving stations can be selected. You can choose.

[Problem to be solved by the invention]

The conventional radio receiver main body is configured as described above, so when an in-vehicle audio system is configured using this radio receiver main body and a seek operation is performed by operating the seek key on the operation panel, a predetermined If a receiving station having a field strength value greater than or equal to this value cannot be selected, the seek operation is performed by sequentially lowering the predetermined value until a receiving station can be selected.

Therefore, in the above-mentioned case, in order to stop the seek operation, you can operate other keys on the operation unit, such as the preset key, to select a predetermined reception station, or operate other keys to select another reception station. Since it is necessary to select an audio device (source), for example, a tape recorder, there is an inconvenience that the operation becomes complicated.

This invention was made in order to solve the above-mentioned inconvenience, and when the main body of the radio receiver cannot perform a seek operation and select a receiving station having a field strength value equal to or higher than a predetermined value. provides an in-vehicle audio system that automatically transitions to the previous source.

[Means to solve the problem]

The in-vehicle audio device according to the present invention outputs a field strength detection signal when a receiving station with a field strength value of a predetermined value or more is selected by a seek operation, and when a receiving station with a field strength value of a predetermined value or more is selected by a seek operation. AM radio receiver body that outputs a non-field strength detection signal when selection cannot be made, FM
Radio receiver body, this AM radio receiver body, FM
an operation section having at least a selection switch for selecting a radio receiver body, a seek key for causing the AM radio receiver body and the FM radio receiver body to perform a seek operation for selecting a receiving station having a field strength value equal to or higher than a predetermined value; The speaker section to which the output of the radio receiver main body or FM radio receiver main body is supplied, and the source of the supply source that was supplying the output to the speaker section before selecting the AM radio receiver main body or FM radio receiver main body. The data is stored in a non-volatile first memory circuit, and if the AM radio receiver body or FM radio receiver body selects a predetermined receiving station when the seek key is operated, the station data of that receiving station is stored. If the AM radio receiver body or FM radio receiver body outputs a non-field strength detection signal by storing it in the second memory circuit or third memory circuit and operating the seek key, before operating the seek key. When the AM radio receiver main body or FM radio receiver main body is receiving a predetermined receiving station, the station data of the AM radio receiver main body or FM radio receiver main body is stored in the second memory circuit or the third memory circuit. If the AM radio receiver or FM radio receiver is not receiving the specified receiving station before operating the seek key, the predetermined receiving station is set based on the source data in the first memory circuit. The receiver is equipped with a control section that sets the receiving station of the FM radio receiver main body or the AM radio receiver main body in the station data of the storage circuit No. 3 or the second storage circuit.

Further, an in-vehicle audio device according to another invention of the present invention includes:
Furthermore, at least one audio device main body different from the AM radio receiver main body and the FM radio receiver main body is provided, and before selecting the AM radio receiver main body or the FM radio receiver main body, output is supplied to the speaker section. The source data of the supply source is stored in a non-volatile first storage circuit, and if the AM radio receiver body or FM radio receiver body selects a predetermined receiving station when the seek key is operated, that receiving station is selected. When the AM radio receiver main body or FM radio receiver main body outputs a non-field strength detection signal by storing the station data in the second storage circuit or the third storage circuit and operating the seek key, the seek key is pressed. Before operating the AM radio receiver or
When the M radio receiver body is receiving a predetermined receiving station, the receiving station of the AM radio receiver body or FM radio receiver body is set in the station data of the second memory circuit or the third memory circuit. , If the AM radio receiver body or FM radio receiver body is not receiving a predetermined receiving station before operating the seek key, the source data in the first storage circuit is If it is the main body, the receiving station of the FM radio receiver main body or AM radio receiver main body is set in the station data of the third memory circuit or the second memory circuit, and the source data of the first memory circuit is If it is a device main body, it is equipped with a control section that sets the audio device main body to a playback mode.

[Function] The control unit of the in-vehicle audio device according to the present invention, when the AM radio receiver main body or the FM radio receiver main body is receiving a predetermined receiving station before operating the seek key, stores the second memory. Set the receiving station of the AM radio receiver body or FM radio receiver body in the station data of the circuit or the third storage circuit, and before operating the seek key, the AM radio receiver body or FM radio receiver body is set to the specified receiving station. When the station is not being received, the receiving station of the FM radio receiver body or AM radio receiver body is stored in the station data of the third memory circuit or the second memory circuit based on the source data of the first memory circuit. is set in the station data of the second storage circuit or the third storage circuit.

Further, the control unit of the in-vehicle audio device according to another aspect of the present invention is configured such that when the AM radio receiver main body or the FM radio receiver main body is receiving a predetermined receiving station before operating the seek key, Set the reception station of the AM radio receiver body or FM radio receiver body in the station data of the memory circuit or the third memory circuit, and then press A before operating the seek key.
When the M radio receiver main body or the FM radio receiver main body is not receiving a predetermined receiving station, if the source data in the first storage circuit is the FM radio receiver main body or the AM radio receiver main body, the first If the receiving station of the FM radio receiver main body or the AM radio receiver main body is set in the station data of the storage circuit 3 or the second storage circuit, and the source data of the first storage circuit is the audio equipment main body, the audio equipment Set the device to playback mode.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing the configuration of a vehicle-mounted audio device according to an embodiment of the present invention.

In Figure 1, 1 is the AM radio receiver body, 2 is the FM radio receiver.
This AM radio receiver body 1 shows the radio receiver body.
．． When the FM radio receiver body 2 selects a receiving station with a field strength value equal to or higher than a predetermined value by a seek operation, it sets the receiving station to that receiving station, outputs a field strength detection signal, and selects a receiving station with a field strength value higher than a predetermined value by a seek operation. When a receiving station with the field strength value cannot be selected, a non-field strength detection signal is output.

3 is the compact disc player body (hereinafter referred to as CD
It is called the player body. ), 4 is a digital audio tape recorder main body (hereinafter referred to as a DAT recorder main body), and 5 is a C cassette recorder main body.

Reference numeral 6 denotes an operation section, which is provided with switches, keys, etc. for setting the AM radio receiver main body 1 to the C cassette recorder main body 5 to various operations.

Reference numeral 7 indicates a speaker unit connected to the AM radio receiver body 1 to C cassette recorder body 5, and outputs the output supplied from any of the AM radio receiver body 1 to C cassette recorder body 5 as audio, music, etc. This is what is output.

Reference numeral 8 denotes a display section for displaying information on the AM radio receiver main body 1 to the C cassette recorder main body 5.

Reference numeral 9 denotes a non-volatile first memory that stores the supply [(source) that supplied the output to the speaker section 7 before the AM radio receiver main body 1 or the FM radio receiver main body 2 performs the seek operation. 10 is a second storage circuit that stores the station data of the receiving station of the AM radio receiver main body, for example, the reception frequency; 11 is a third storage circuit that stores the station data of the receiving station of the FM radio receiver main body 2; shows.

Reference numeral 12 indicates a control unit, which includes the outputs of the AM radio receiver body 1 to the operation unit 6 and the first memory circuit 9 to the third memory circuit 11.
Based on each data, AM radio receiver main body 1 to C cassette recorder main body 5. Display section 8 to 3rd
It controls the memory circuit 11 of.

FIG. 2(a), Φ) is a flowchart for explaining an example of the operation, and in this example of operation, the second storage circuit 10
．． When the third memory circuit 11 is a volatile memory circuit and the AM radio receiver body 1 or the FM radio receiver body 2 is selected, the AM radio receiver body 1 or the FM radio receiver body 2 sets the receiving frequency to the lower limit. This is the value to be set.

In FIG. 2, STI to 5T30 indicate each step.

Next, the operation will be explained.

First, when the AM radio receiver body 1 or the FM radio receiver body 2 is selected by operating the switch on the operation unit 6, the flowchart shown in FIG. 2 starts.
(Step 5TI) determines whether the AM radio receiver body 1 is selected. If the AM radio receiver body 1 is selected, the source data of the source before selecting the AM radio receiver body I is transferred to the first source. It is stored in the memory circuit 9 (step 5T2).

When the AM radio receiver main body 1 is selected in this way, the AM radio receiver main body 1 sets the reception frequency to the lower limit value, as described above.

Next, it is determined whether the channel selection key, for example, the preset key, of the operation unit 6 has been operated (step 5T3). If the preset key has been operated, the data of the AM radio receiver body 1 is stored as the source data in the first memory. After storing in the circuit 9 and storing the station data of the selected receiving station in the second storage circuit 10 (step 5T4), step ST
Proceed to step 3.

If the preset key is not operated in step ST3, it is determined whether the seek key of the operation unit 6 is operated (step 5T5), and if the seek key is operated, the field strength is detected from the AM radio receiver main body 1. It is determined whether a signal is output (step 5T6).

Note that when the seek key is operated, the AM radio receiver body 1. The receiving frequency of the FM radio receiver main body 2 is sequentially set to the receiving frequency obtained by adding the frequency corresponding to the channel plan interval until a receiving station with a field strength value equal to or higher than a predetermined value is selected. ．． When the FM radio receiver body 2 detects a receiving station with a field strength value equal to or higher than a predetermined value, it sets the receiving station to that receiving frequency, outputs a field strength detection signal, and returns the receiving frequency in order of 1 to the original. If a field strength detection signal is not obtained even when the receiving frequency is reached, a non-field strength detection signal is output.

Next, if there is a field strength detection signal as determined in step ST6, the process proceeds to step ST4, and if there is no field strength detection signal, it is determined whether a non-field strength detection signal is output from the AM radio receiver body 1 in step 5T7. ), if there is no non-field strength detection signal, the process proceeds to step ST6.

If there is a non-field strength detection signal in the determination in step ST7, it is determined whether the source data in the first storage circuit 9 is the AM radio receiver main body 1 (step 5T8), and the source data in the first storage circuit 9 is If the data is the AM radio receiver body 1, the receiving station is set in the station data of the second storage circuit 10 (step 5T9), and then the process advances to step ST3.

Next, if it is determined in step ST8 that the source data in the first storage circuit 9 is not the AM radio receiver main body 1, it is determined whether the source data in the first storage circuit 9 is the FM radio receiver main body 2. Step 5T10), if the source data in the first storage circuit 9 is the FM radio receiver main body 2,
After turning off the AM radio receiver body 1, turning on the FM radio receiver body 2, and setting the receiving station to the station data in the third storage circuit 11 (step 5T11), the process proceeds to step 5TI8, which will be described later.

Further, if the source data in the first storage circuit 9 is not the FM radio receiver main body 2 in the determination at step 5TIO, the AM
After turning off the radio receiver body 1 and setting the source of the source data in the first storage circuit 9 (any one of the CD player body 3 to the C cassette recorder body 5) to the playback mode (step 5T12), the process proceeds to step STI. move on.

Next, if the seek key is not operated in step ST5, it is determined whether the FM radio receiver body 2 is selected (step 5TI3), and if the FM radio receiver body 2 is selected, step 5T17, which will be described later. Proceed to and if FM radio receiver body 2 is not selected,
Determine whether another source is selected (step 5T1
4).

If no other source is selected in the determination at step 5T14, the process advances to step ST3, and step 5T
If another source is selected in step 14, after turning off the AM radio receiver body 1 (step 5T15)
, proceed to step STI.

Further, if the AM radio receiver main body 1 is not selected in the determination in step STI, it is determined whether the FM radio receiver main body 2 is selected (step 5T16), and if the FM radio receiver main body 2 is not selected, Step ST
If the FM radio receiver body 2 is selected, or if the FM radio receiver body 2 is selected in the determination at step 5T13, the process proceeds to step 5T17.

Note that the following steps 5T17 to 5T30 have the same control as steps ST2 to 5T15 described above, so the explanation thereof will be omitted.

Therefore, according to this embodiment, it is not possible for the AM radio receiver body 1 or the FM radio receiver body 2 to select a receiving station with a field strength value greater than or equal to a predetermined value by operating the seek key of the operation unit 6. At this time, one of the AM radio receiver bodies 1 to C cassette recorder bodies 5 is selected and set to the operating mode based on the source data in the first memory circuit 9, so that the operation for stopping the seek operation is not necessary. becomes unnecessary.

FIGS. 3(a) and 3(b) are flowcharts for explaining another example of the operation, and in this example of operation, the second memory circuit 10. The third memory circuit 11 is a non-volatile memory circuit, and the AM radio receiver main body 1.
This is to set the receiving station of the FM radio receiver body 2.

In FIG. 3, 5T31 to 5T52 indicate each step.

Next, the operation will be explained.

First, when the AM radio receiver main body 1 or the FM radio receiver main body 2 is selected by operating the switch on the operating section 6, the flowchart shown in FIG. 3 starts.
If the AM radio receiver main body 1 is selected, it is determined whether the AM radio receiver main body 1 is selected (step 5T31), and the receiving station is set in the station data of the second storage circuit 10 (step 5T32). ), it is determined whether a preset key has been operated (step 5T33).

Then, if the preset key is operated in the determination in step 5T33, after setting the receiving station of the AM radio receiver main body 1 to the station data of the second storage circuit 10 (step 5
T34), proceed to step 5T33.

Next, if it is determined in step 5T33 that the preset key has not been operated, it is determined whether the seek key has been operated (step 5T35), and if the seek key has been operated, it is determined whether there is an electric field strength detection signal (step 5T35).
T36).

Then, if there is a field strength detection signal in the determination at step 5T36, the process proceeds to step 5T34, and if there is no field strength detection signal, it is determined whether there is a non-field strength detection signal (step 5T37), and if there is no field strength detection signal, the process proceeds to step 5T37). If so, proceed to step 5T36.

Next, if there is a non-field strength detection signal as determined in step 5T37, the receiving station is set in the station data of the second storage circuit 10 (step 5738), and then the process proceeds to step 715-33.

Furthermore, if the seek key is not operated in the determination at step 5T35, it is determined whether the FM radio receiver main body 2 has been selected (step 5T39), and if the FM radio receiver main body 2 has been selected, the step 5T43 described below is performed.
If the FM radio receiver body 2 is not selected, it is determined whether another source has been selected (step 5).
T40).

If no other source is selected in step 5T40, the process advances to step 5T33; if another source is selected, after turning off the AM radio receiver body 1 (step 5T41), step 5T31 Proceed to.

Furthermore, if the AM radio receiver main body 1 is not selected in the determination at step 5T31, the FM radio receiver main body 2
is selected (step 5T42), and if the FM radio receiver body 2 is not selected, step 5
The process proceeds to T31, and if the FM radio receiver main body 2 is selected, or if the FM radio receiver main body 2 is selected in the determination at step 5T39, the process proceeds to step 5T43.

Note that the following steps 5743 to 5T52 are controlled in the same way as steps 5732 to ST41 described above.
The explanation will be omitted.

Therefore, in this embodiment as well, the same effects as in the previous embodiment can be obtained.

In the above-described embodiment, the CD player main body 3 to the C cassette recorder main body 5 are provided as the audio equipment main body, but the AM radio receiver main body 1. FM radio receiver body 2 only, or AM radio receiver body 1. If the FM radio receiver main body 2 is provided with at least one of the CD player main body 3 to the C cassette player main body 5, it will function similarly.

Also, although the operation of the display unit 8 was not explained, the AM
When the radio receiver main body 1 or the FM radio receiver main body 2 selects a predetermined receiving station, the reception frequency of that receiving station is displayed, and when the CD player main body 3 to C cassette recorder main body 5 is selected, the reception frequency of that receiving station is displayed. , and messages related to the operation will be displayed.

〔Effect of the invention〕

As described above, according to the present invention, when the AM radio receiver main body or the FM radio receiver main body cannot select a receiving station with a field strength value equal to or higher than a predetermined value by operating the seek key on the operation unit, The seek operation is based on the source data of the first storage circuit, and selects either the AM radio receiver body, the FM radio receiver body, or the audio equipment body and sets it to the operation mode. This has the effect of eliminating the need for an operation to stop.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the tank bottom of an in-vehicle audio device according to an embodiment of the present invention, FIG. 2 (6) and (b) are flowcharts for explaining an example of the operation, and FIG. 3 (a) , (b) is a flowchart for explaining another example of the operation. 1... AM radio receiver body, 2... FM radio receiver body, 3... Compact disc player body, 4... Digital audio recorder body,
5...C cassette recorder main body, 6...Operation unit, 7
...Speaker section, 9...First memory circuit, 10...
-Second memory circuit, 11...Third memory circuit, 12.
...Control unit.

Claims (2)

[Claims] (1) When a receiving station with a field strength value greater than or equal to a predetermined value is selected by the seek operation, a field strength detection signal is output; when a receiving station with a field strength value greater than the predetermined value cannot be selected by the seek operation; is an AM radio receiver body that outputs a non-field strength detection signal, an FM radio receiver body, a selection switch for selecting the AM radio receiver body, the FM radio receiver body, and the AM radio receiver body;
an operation section including at least a seek key for causing the FM radio receiver body to perform a seek operation for selecting a receiving station having a field strength value equal to or greater than the predetermined value; and an output of the AM radio receiver body or the FM radio receiver body. A non-volatile first storage circuit stores source data of a supply source that was supplying output to the speaker section and the speaker section to be supplied, and before selecting the AM radio receiver main body or the FM radio receiver main body. , and when the seek key is operated, the AM
If the radio receiver main body or the FM radio receiver main body selects a predetermined receiving station, the station data of the receiving station is stored in the second storage circuit or the third storage circuit, and the seek key is operated. By doing said AM
When the radio receiver body or the FM radio receiver body outputs the non-field strength detection signal, the AM radio receiver body or the FM radio receiver body or the FM radio receiver body outputs the non-field strength detection signal before operating the seek key.
When the M radio receiver main body is receiving a predetermined receiving station, the station data of the second storage circuit or the third storage circuit is stored in the reception station of the AM radio receiver main body or the FM radio receiver main body. If the AM radio receiver main body or the FM radio receiver main body has not received a predetermined receiving station before setting the station and operating the seek key, the predetermined reception station is a control unit configured to set a receiving station of the FM radio receiver main body or the AM radio receiver main body in the station data of the third storage circuit or the second storage circuit; (2) When a receiving station with a field strength value greater than or equal to a predetermined value is selected by the seek operation, a field strength detection signal is output, and when a receiving station with a field strength value greater than the predetermined value cannot be selected by the seek operation. is an AM radio receiver body that outputs a non-field strength detection signal, an FM radio receiver body, at least one audio device body different from the AM radio receiver body and the FM radio receiver body, and the AM radio receiver body , a selection switch for selecting the FM radio receiver main body or the audio equipment main body, and a seek key for causing the AM radio receiver main body and the FM radio receiver main body to perform a seek operation for selecting a receiving station having a field strength value equal to or higher than the predetermined value. a speaker section to which the output of the AM radio receiver main body, the FM radio receiver main body or the audio equipment main body is supplied; and the selection of the AM radio receiver main body or the FM radio receiver main body. source data of a supply source that was supplying output to the speaker unit is stored in a nonvolatile first storage circuit, and when the seek key is operated, the source data of the supply source that supplies output to the speaker unit is
If the radio receiver main body or the FM radio receiver main body selects a predetermined receiving station, the station data of the receiving station is stored in the second storage circuit or the third storage circuit, and the seek key is operated. By doing said AM
When the radio receiver body or the FM radio receiver body outputs the non-field strength detection signal, the AM radio receiver body or the FM radio receiver body or the FM radio receiver body outputs the non-field strength detection signal before operating the seek key.
When the M radio receiver main body is receiving a predetermined receiving station, the station data of the second storage circuit or the third storage circuit is stored in the reception station of the AM radio receiver main body or the FM radio receiver main body. If the AM radio receiver main body or the FM radio receiver main body has not received the predetermined receiving station before setting the station and operating the seek key, the source data of the first storage circuit is If it is an FM radio receiver main body or the AM radio receiver main body, the receiving station of the FM radio receiver main body or the AM radio receiver main body is stored in the station data of the third storage circuit or the second storage circuit. and a control unit that sets the audio equipment main body to a playback mode if the source data of the first storage circuit is the audio equipment main body.