JPS5870476A - Acoustic device - Google Patents

Abstract

PURPOSE:To control a lot of functions and operations by a few switches, by setting a receiver selected by a mode selecting switch, or a tape recorder/reproducer to an operating state selected by a function selecting switch. CONSTITUTION:A receiver using a phase lock loop frequency synthesizer, and a tape recorder/reproducer for executing plural functions are controlled by a digital signal. That is to say, the digital signal selects the receiver and the tape recorder/reproducer selectively by mode selecting switches 25-30, and each of plural function selecting switches 32-38 is superposed on each function of the receiver and each function of the tape recorder/reproducer, and corresponds to each of them. In this state, the function of the receiver or the tape recorder/ reproducer, which has been selected by the switches 25-30 is executed by operating the switches 32-38, therefore, the receiver and the tape recorder/ reproducer can be controlled by a small number of switches.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a receiver using a phase loop li'd wave &-/ synthesizer and a digital (fa'') K
The present invention relates to an audio device including a tape recorder/player that performs multiple functions in response.

Sound devices such as this one are used in the home, and in recent years there has been a trend toward multi-functionality, requiring a large number of operation switches depending on the function. . In order to install a large number of switches, a large installation space is required, and selectively operating these switches during continuous running with the L1 switch is a safety issue.

The object of the invention is to provide an acoustic device which can be used to control the same operation in many machines using as few switches as possible.

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

This audio device is automatically installed, and its operation is controlled by a processing device such as a microcomputer. A receiver 2 using a phase-locked loop wave number synthesizer capable of receiving 1v4A standard broadcasts and station wave late standard broadcasts, and a tape recording/player 3 that performs multiple functions in response to digital signals. The audible value from the iy1
Speakers 11, 12, and 13 installed in the single room 9 of Army 8
．． 4 on 14. t be beaten. Speakers 11 and 12 are located in the vehicle compartment 9.
are installed on the front left and right sides of the Speaker 13°14
are provided on the left and right rear portions of the vehicle compartment 9, respectively.

The vehicle 8 in front of the vehicle 8 is also equipped with an amateur radio device 15. In the processing bag fjtl, the processing circuit 16° and the input/output interface 17, 1 connected to the father's machine 2, the tape recording/playback machine 3, and the amateur radio machine 15.
Contains 8.19. To control Ig machine z and tape recording/(1 + raw machine 3 and amateur radio machine 15,
A key human power device 20 is provided. This key Jinrikiso w20
is connected to the processing circuit 16 via the input/output interface 21. The processing circuit 16 is also connected to each control circuit 5 , 6 , 17 via an output interface 94 , and is also connected to a cathode ray tube 76 via an output interface 75 . Instead, the liquid crystal display tube LCD, the fluorescent display tube 1;'LD and the like may be set by +1''.

FIG. 2 shows both sides of the operation panel 22 of this P-acoustic device. The operation panel 22 is provided with an insertion slot 23 for loading and unloading a cassette tape. A mode selection switch 24 is disposed at the top of the operation panel 22. This mode selection switch 24 has a switch 25 for receiving the Akiku Tomo Broadcasting, a switch 26 for receiving the Tsunami E and Aicho Broadcasting, a switch 27 for operating the amateur radio 15, and a switch 27 for operating the amateur radio 15. A switch 28 for operating the vinegar/regenerating machine 3 and a switch 29 for displaying a clock
and a switch 3 which functions as a timer to operate the receiver 2 or the tape recording/player 3 at a predetermined time.
Including 0. 4M operation panel 22 ty) In the F section, the funkunyong selection switch 31 is turned on. This function selection switch 31 performs an eject operation to eject the cassette tape loaded in the cassette insertion slot 23 to the outside, a switch 32 to stop the tape from running, and a tape recording/playback device 3 to perform recording. It is provided with a switch 33 that can be operated completely for the purpose of operation, and switches 34 to 38 for performing the yx6 operation as shown in Table 1.

Table 1 Here, "search down" and t↓ represent the tuning operation of lowering the same wave number when the tuning of amplitude up-tuning broadcasting and same-wave number up-tuning broadcasting is performed by subtracting 111) on the own UAJ. . "Search up" means the fully automatic cancellation of the 111fl1 frequency broadcast and the frequency father broadcast K J'l'l) minus (1
If it does, it indicates a tuning operation that increases the same wave number. "Search scan" means that the search down and search up tuning operation is paused, that is, when the tune is tuned, it is paused, and the next tune is reached again without any instruction. When the correct size is reached, repeat the operation of N)51. If the 11-length switch 36 is operated during this tuning, the sweep remains at that tuning position. [Preset scan] is a function that scans pre-selected channels for broadcasting in the same frequency modulation, broadcasting in the same wave number modulation, and amateur radio (temporarily stopping at the RJ direction wave number and returning the tuning to the sequential INJ). If the switch 35 is operated again during this tuning, the subsequent channel selection operation will be stopped. If the reception wave number to be selected when the switch 35 is operated is stored, when the switch 34 is in the switching mode corresponding to the main channel, the predetermined one channel number 0 to 9 is selected. The reception of 10 stations is set to 0T function, and when the sub-side switching mode is activated, the other 10 stations can be selected.l'
-REWJ indicates rewinding of the tape, 1-FFJ&, fast forwarding of the tape, and [PLA'YJ indicates operations for reproducing the tape and converting the band used for the tape, that is, converting the program.

1APsJ represents an operation in which the recording band is increased by ytt and cue playback is performed only because this switch 35 is pressed. VPAUSI! :J represents an action to temporarily stop recording/playback.

A display 39 is provided at the center of the operation panel 22 . This display 4391+i is realized using a liquid crystal or the like. This display device 39 displays the signal during communication channel selection in the display area 40, displays the time 17 in the display area 41, indicates the reason for skipped recording area during cue playback in the display area 42, and displays the error in the recording area skipped during cue playback in the display area .44
represents the tape running direction, and the recording area 45 represents the audible (manpower level of g) during tape recording.

The operation lever 22 is provided with a switch 46 for controlling the sound h1. When switch 47 is operated,
The volume gradually increases, and when the switch 48 is operated, the volume decreases by I/'IV.

Switches 47 and 48 are collectively designated as switch 4G. Switches 49 to 53 are provided for sound quality control, and are generally indicated by a square 54. These switches 49-53iJ:, Audible +j No. 3 50)iz
, 250Hz, IKMLZ, 4KHz, 16KH
z is operated to control the amount of attenuation 6111 respectively. These switches 49 to 53 serve as a pair of switches for reducing Wk, and will be given suffixes a and b, respectively, in the following explanation.

The switch 54 for performing volume balance is
A switch 56 that increases the volume of the speaker 11.12 provided in the ``11 part'' and the speaker 13.1 of the gii+ (
The sound of 4! ? A switch 57 to increase the volume, a switch 58 to increase the volume of the right speaker 12, 14, and a switch 59 to increase the volume of the left speaker 11, 13.

FIG. 3 is a detailed electrical circuit diagram of the key power device 20. As shown in FIG. A plurality of horizontal direction signal lines 60 to 6B and a plurality of longitudinal force directions (
Switches 25 to 30 at each intersection with lines 70 to 73
．． 32-38.47, 48°49-53.56-59 will be paid. The sound quality control switches 49 to 53 are
Consisting of a pair of switches, the switch that increases the amount of attenuation is indicated with the suffix a, and the switch that decreases the amount of attenuation is indicated with the suffix s. The key human force fi20 is oxta,
These switches 81-85 include switches 80-84.
is provided at a location other than the operation panel 22, for example near the handle, and is configured to allow remote control. The signal lines 60 to 68 and 70 to 73 are connected to the input/output interface 21, and the processing circuit 16 detects whether the switch has been operated. The level of the r+J'+W multidirectional signal omnidirectional wave band obtained by operating the switches 49 to 53 for sound quality control is outputted from the processing circuit 16 via the output interface 75 to 1.
The signal is sent to the polar ray tube 76 and displayed. Operation panel 22
is equipped with a power switch 80 1]9. Ru.

FIG. 4 shows the theory 14 of 0σ1 production according to the operation of the mode selection switch 24, sound 1j control switch 46, sound quality control switch 54, and sae 1i balance system 1i 111 switch 55.
It is a full O-chigito for f. Starting from step nl, the power switch 80 is turned on at step n2.
A check W1 is made to determine whether the machine has been operated or the stand has been operated. By operating the power switch 80, in step n2a, the power supply circuit '1[i-]' is activated and de-energized as shown in FIG. In step n2, 'power switch 8
0 is operated and the issue 117 is issued, it is determined whether each switch 25 to 30 of the mode selection switch 24 has been operated in steps n: 3 to 08. Cut off. When the power switch 26 or the switch 25 for amplitude modulation broadcasting is operated for frequency modulation broadcasting, the radio reception processing is started at step n3aVc$. When the final switch 28 of the tape recording/playback device 3 is operated, the process moves to step n5aVc, and the tape recording/playback device 3 is operated. Similarly, in steps n6a, n7a, and n8a, the amateur radio device 1
5, clock processing 11, and clock processing as a timer are performed.

In steps nlO and nil, a volume increase process n1Oa and a volume decrease process n1la are performed in accordance with the operations of switches 47 and 48 included in the switch 46 for volume control, respectively.
will be carried out.

In steps n12 to n15, the operation of the volume balance switches 56 to 59 is detected, and step nl
2 a -n l 5 a K o (8 and speaker 11~
14 volume balance processing is performed.

In steps n16 to n20, in controlling the sound quality, it is detected whether or not the switches 49a to 53a for reducing the amount of attenuation for each frequency band have been operated, and depending on the operation of these switches 49a to 53a, Step H
Sound quality processing operations are performed in 16a-n2Ua.

In steps n21 to n25, the limit should be 11 +t:i
It is determined whether the switches 49b to 53b for reducing the amount of attenuation of the audible signal in the wave number band are operated or not, and accordingly, the attenuation amount increasing process IJυ1 is performed in steps n21a to 1125b.

In step n26, it is determined whether or not the clock is in the operation mode according to the operation of the switch 29, and if so, in step n26, it is assumed that the wrong switch 29 of the clock u1 has been operated, and if the subsequent clock sections J are continued. . In step n27, it is determined whether the reserved operation mode according to the operation of the switch 30 is interrupted, and if so, it is assumed that the switch 30 has been operated in step n27a, and the subsequent timer operation is executed in the C3+continuation mode. cormorant. In step n28, it is determined whether the radio reception operation mode is being performed by operating the switch 25 or 26, and if so, the radio 7-reception-J operation is performed 51 times in a row. At step n29, it is determined whether or not the tape recording/producing machine 3 is being operated. If so, the operation of the tape recording/playing machine 3 is continued at step n29a. In step n30, switch 2
It is determined whether the amateur radio device 15/7) operation according to the operation of step 7 is being performed, and if so, the operation of the amateur radio device 15 is continued in step H30a.

FIG. 5 is a flowchart for explaining the operation of receiving amplitude modulation broadcasting or same wave number modulation broadcasting by receiver 2 in step n3a according to the operation of switches 25 and 26. Step ml to step m
2, it is determined whether or not the cassette tape is inserted into the cassette insertion hole 23. IJlIT will be done. If a cassette tape is installed, it is determined in step m3 whether or not the recording stop switch 33 is operated, and if yes, step rn 3 a VC.
Then, the tape recording/playback device 3 performs a recording operation. When no tape is inserted, K is step m.
Move to step m4 after 2 seconds.

In step m4, it is determined whether switch 25 or 26 has been operated. When the switch 25 or 26 is operated, K moves to step m16, determines that the switch 25 or 26 is operated for the first time, and checks in the next step m17 whether or not the switch 25 for amplitude modulation has been operated. When it is determined that the switch 25 has been operated, K receives the amplitude modulated broadcast in step m 18 , and when the switch 26 is operated, K moves to step m 17 and then step m 19 , and receives the amplitude modulation broadcast at step m 18 . Wave number modulation broadcasting is received.

In step m5, it is determined whether the switch 81 (see FIG. 3) has been operated, and in step m6, it is determined whether the switch 37 has been operated. When the switch 81 or 37 is operated, an operation of increasing the reception frequency is performed in step m20. In step m7, it is determined whether or not the switch 82 (FIG. 3) and the switch 38 have been operated. If they have been operated, the reception frequency is lowered in step m21 and a channel selection operation is performed. In step m8, it is determined whether or not the switch 36 has been operated, and when the switch 36 has been operated, the reception frequency sweep operation is performed in step m22h. In step m9,
It is determined whether the switch 35 is operated and the preset scan is to be terminated, and in step m10, it is determined whether the switch 35 is in the conductive state to start the preset scan. , thus when the switch 35 is operated, step m2
3 K Transfer, preset skigging processing operation is performed. In step mll, it is determined whether or not the switch 34 has been operated, and if the switch 34 has been operated, step m2
4, the selection process of [Reception to be selected] which is pre-stored in memory and selected by Masa Uranami is performed. step m
In step 12, it is determined whether or not the receiving frequency is being swept, and if the receiving frequency is being swept, step m is performed.
22 [3] Continuing to step m22, a scan processing operation is performed. In step m13, it is determined whether or not the preset scan operation is in progress, and if so, the process moves to step m23 to continue the preset scan operation. In step m14, it is determined whether or not the reception frequency prestored in the memory is being selected according to the operation of the switch 34, and if so, the operation in step m24 is continued.

FIG. 6 is a 70-chigito for explaining the specific operation of the skigging process in step m22. The process moves from step m8 to step pl, and in this step pl it is determined whether the switch 36 has been operated for the first time, and if so, it is determined in step p2 whether or not the skigging operation mode is being performed. . If the skigging operation mode is not being performed, the skigging operation is started in step p3.

In step p4, the reception frequency is changed to increase, and in step p5, when a channel is selected, the station waits for 5 cycles at the selected reception IN wave number. During these 5 seconds, if the listener wishes to continue receiving at that reception frequency, he/she can operate the switch 36 again, and then step p.
An operation is performed to move from l to m 15 K. If K wants to continue selecting the next channel, he can wait and discuss the next channel selection.

When it is determined in the skigging operation step p2 that the scan operation mode is selected, the process returns to the step p6, where the scan operation mode is terminated and the process returns to step m15K.

When it is determined in step m12 that the scanning operation is in progress, it is determined in step p7 whether or not the current reception frequency and the 177 reception frequencies match, and if these reception frequencies match. Sometimes, it is determined in step p8 whether or not it is on standby for 5 seconds. If the current frequency and the reception frequency of the song do not match (step m15 VC), a scanning operation will be performed. When the receiving frequency matches the broadcasting frequency, the channel selection state is maintained for 5 seconds as described in 1ti, and from this the subscriber can judge whether or not it is the desired station, and if it is the desired station. , press the switch 36 of VC-4 again as described above. As a result, the process moves from step pl to step m15, and the channel selection 01 operation ends.

FIG. 7 is a flowchart for explaining the operation of the preset skigging process performed in step m23. In step m9, when the switch 35 of the preset skiggin is operated in (8) and is in the cutoff state 18, the preset scan operation is terminated in step q9. If so, it is determined in step q1 whether the switch 35 is turned off for the first time, and if so, it is determined in step 42 whether or not it is in the preset scan operation mode. When the preset scan operation does not cause any impact, step q3
, step skigging operation is started, and step q
Move on to 4. In step q4, when the reception frequency matches the frequency of the broadcast section, the reception state of the broadcast is maintained for 5 seconds in step q4Vc, and the process moves to step q5. In step 45, it is determined whether or not the number of signals being received is 9, and if not, step q6[
It is then determined whether there is a channel number or not. When the receiving channel number is a number other than 9, K moves to step q7, where it is incremented by the receiving channel number or l, and in step Q8, the receiving part wave number corresponding to the channel number is selected. A station reception operation is performed. In step q6, if there is no channel number in the channel, step qll
Then, the channel number "0" becomes selected and received.

When it is determined that the preset operation mode is in step m l 3 Vc, step q1
At 0, it can be determined whether or not the receiving side is busy for 5 seconds when receiving a tuned channel. When the 5 seconds are not being counted, the VC is
Proceeding to step q4, it is set to perform a reception operation for 5 seconds before the next reception channel selection.

FIG. 8 shows a specific IJ11 flowchart of the tape thief one production mode in step m3aVc. Moving from step rl to Sugetsuburi r2, whether the switch 32 has been operated or not is cut off at t1J, and if it has not been operated, aV
C moves to step r3V (it is determined whether the switch 34 is operated or not. When the switch 34 is not operated, K moves to step r4, and switches the switch 33 for recording.
101 is performed to determine whether or not the operation has been completed. If the switch 33 is not operated, the process moves to step r5, and it is determined whether the switch 36 is operated. At Sugetsubu r li and r 7, it is determined whether or not the switches 37 and 38 are operated respectively. In step r8, it is determined whether tape 1''1 is currently being processed. In step 9, it is determined whether the switch 35 has been operated, and in step rlU, it is determined whether or not a cue playback operation is being performed in accordance with the operation of the switch 35.

Toki V whose switch 34 was operated in step r3
C. In step rll, it is determined whether or not the switch 34 is operated for the first time fJJ 1-L, and if so, in step r12, the tape running is temporarily stopped, ie, paused (1'AUsE). .

If the switch 34 is not operated for the first time in step rll, VclIi: and in step r13ic, the temporary stop operation of tape running is canceled.

In step r4, when the switch 33 is operated for recording, the process moves to step r14, where recording is performed. When the switch 37 is operated in step r6V (step r6V), the tape is fast-forwarded in step r15.

When it is detected in step r2Vc that the switch 32 is being operated, it is determined whether the step r16Vc transfer tape is in a bad state. If the tape has stopped, the cassette tape is ejected from the cassette extension port 23 in step r18, and an eject operation process is performed. If the tape is running, steps r16 to rlH
Then the tape stops running.

In step r5, Toki was unable to operate the switch 36,
In step r19, it is determined whether or not a tape playback operation is being performed. When the tape is being reproduced, the recording band is changed in step r20. If the tape is not being played back, the playback operation is continued until the end of the tape in step r21.

When the switch 35 is operated in step r9, the switch 35 is operated at step r22.
It is detected how many times 5 has been suppressed. d) The same number of operations of the switch 35 corresponds to the number of skips in the recording area. Step r10? I7C&J: When the cue playback U1 operation mode is selected, the process moves to step r23, where it is determined whether or not the cue selection is in progress. Subtraction processing is performed by the number X by l, and in step r25 it is determined whether the subtracted result is zero or not. When it is zero, step r
26, the skipping run of the cue stop is stopped, and a regeneration operation is performed at Sugetsuburi r27.

FIG. 9 shows the switch 27 for the amateur radio device 15.
Specifics 1 of step n3a when is operated and the amateur radio device 15 is operated!・This is a flochigito that is meant to be used as a celebration. Steps 81 to 82
Moving on to processing amount W11 (i VC switch 34
The signals according to the operations of ~38 are transferred from the input/output interface 19 to the amateur radio tJu15VC. Step S
The process then moves to step S5, where it is detected whether the switch 34 has been operated or not.

When the switch 34 is operated, the communication N wave number is changed from 145.00 MHz to 145.50 MHz to 145.50 MHz from the main channel. In steps 86 to s9, the switches 35.3fi, 3
It is detected whether or not each of 7°38 has been operated.

In step slO, it is detected whether the switches for communication channels 1 to 5 in the amateur radio device 15 have been operated. In step sll, amateur radio 4fi
l It is determined whether the power switch of 5 is cut off or old,
If it is not blocked, Isamu moves to step n115.

In step s5, when the switch 34 is operated, the VC receives a signal from the processing circuit 16 to the amateur radio device 15 via the input/output interface 19 in step s15.

When the switch 35 is operated in step 56LL, the process goes from step s6 to step s17, and the preset scan operation mode is entered.In step slH, the current channel A' channel number is set, and the process moves to step s20.

When the switch 36 is operated in step s7, the process moves to step s21, and the preset scan operation mode is canceled, and in step 522Vc, the station selection scan operation mode stored in the amateur radio device 15 is canceled. , the channel number for channel selection is cleared in step s23, and the process moves to step 520VC.

Step s8. When the switch 37 or 38 is operated in s9, the process moves to step s24, and the memo switch set in the amateur radio 15Klii is changed to 4jI.
If flNυi has expired and Sakai J Tago has passed, the process moves to step s25, where the upper row or lower row of the rffl subwave number is 14!1iII is performed. Step s26 Then, the operation by the seventh switch 36 is canceled.If the memo switch is in conduction in step s24, the process moves to step s27, where a scanning operation of the same communication wave number is performed, and the process moves to step s23.

Chi in step slO? When the switch or operation ζtr is activated to supply the channel, K moves to step s28, sets all the output pulses in step S29, sets the number of output pulses with j=-, and in step 530 sets the number of output pulses.
The process then proceeds to step 520.

The amateur radio device 15 uses vc-
+ffi key V The configuration is such that other operations can only be recorded after operating the key switch. Therefore, the processing] 1 is similar to when the cancel switch was operated in order to discontinue the production of the amateur machine 15 (S.
He used brozolam to perform the ``forming'' motions.

FIG. 1O is a concrete block diagram of the volume control circuit 5, the old-fashioned control circuit 6, and the volume balance control circuit 7. 9 (g and I
The JrIs signal is derived from line 90Vc. The town 1 challenge signal to line 90 is applied to the attenuator 91 of the control d111 circuit 5. The attenuator 91 receives the line 9 with an attenuation corresponding to the voltage value applied from the line 92.
The audible signal from ( ) is attenuated and routed to line 93 .

The signals routed from the processing circuits 16 via the output interface 94 to the bus 95 are controlled by integrated circuits. 1l
Tl il,i] road 9fir is given. The 5-bit signal applied to this control circuit 96 is determined as shown in Table 2.

(hereinafter referred to as Eihaku) Referring to Table 2 and Figure 11, the operation panel 22 VC0iii
The operation when the selected switch 47 is operated is shown below. When the switch 47 is operated, the process moves from step ul to step u2, where it is determined whether the switch 47 was operated first. When the operation is performed for the first time, the process moves to step u5, and a counter that clocks a predetermined waiting time W1 is cleared. step u21c
When it is determined that the switch 47 remains operated, a predetermined time Wl is clocked in step u3. 1. The counter created in step 1 performs a counting operation, and when the predetermined waiting time Wl is reached in step u4, the process moves to step u5. In step u6,
It is determined whether the attenuation amount of the attenuator 91 is the minimum and therefore the volume is the maximum.
A signal for decreasing the sound 1+j value by one step R1 by one step is sent from the control circuit 1) 6 to 3rp +++.

In this way, the control circuit 96 changes the voltage value derived to the line 92 in step u8, and the attenuator 91 intensifies the sound HL by one level.

Referring to FIG. 12, the operation when the switch 48 for decreasing the volume on the operation panel 22 is operated is shown. When this switch 48 is operated, step u
Moving from lo to ull, it is determined whether or not the switch 48 is being operated for the first time, and if it is the first time, step u is executed.
14, a counter that clocks a predetermined time Wl is cleared. When it is determined in step ulllc that the switch 48 continues to be operated, the operation time is elapsed in step ullc.
12, and when the operation time is a predetermined time W1 in step u13, the process moves to step u14. In step u15, it is determined whether the volume value set by the attenuator 91 is the minimum, that is, whether the attenuation amount of the attenuator 91 is the maximum. A signal is derived from the processing circuit 96 that is changed so that the attenuation amount of the attenuator 91 becomes smaller by one step R1, that is, the attenuation amount of the attenuator 91 becomes larger by one step.

In this way, the control circuit 96 changes the voltage value of the line 92 so that it becomes the volume value set in step u16.

Referring to FIG. 13, the operations described in connection with FIGS. 11 and 12 may be better understood. Assume that the switch 47 is turned on to VC at time tIVC as shown in FIG. 13(1), and the interlayer f cage continues at time [2-1]. If it is detected in step u2 that the time period [l to t2 is longer than the predetermined waiting time W1, step u5.

Moving to u6, the sound lT1 output data shown in Table 2 is derived from the processing circuit 16 via the output interface 94 on line 95. The control circuit 96 is controlled by the main controller.
By adjusting the voltage of line 92, the attenuation amount of attenuator 91 +d:1 step is reduced by this car, and the volume t/i
As shown in FIG. 13(3), it is increased by one step Rl. When the switch 47 is operated between times t3 and t4 and the time between times 13 and t4 is less than the predetermined time W1, the attenuation amount of the attenuator 91 is increased by one step in the same manner.

Assume that the switch 47 continues to be suppressed from time t5 to time t6. The time from time t5 to t6 is longer than the predetermined waiting time W1, so the process moves from step u2 to step u5 via steps u3 and ju4, and from step u6 to step u7, the volume value increases by one step R1. I'm going to go. In this way, the volume according to the attenuation M of the attenuator 91 is increased by one step R1 at a time wi
It gets bigger by one step each time.

The switch 47 continues to be operated from time E5 to time t6,
As a result, when the attenuation amount of the attenuator 91 becomes the minimum and the volume reaches the maximum, the attenuation amount of the attenuator 91 decreases to a small level and the volume remains at the maximum.

The switch 48 switches from time t7 to t8 as shown in FIG. 13(2).
When the attenuator 91 is operated for less than the predetermined waiting time W1 from time t9 to time tlO, the attenuation amount of the attenuator 91 increases by one step, thereby decreasing the volume by one step R1.

From time tll to t12, a predetermined waiting time open W1
When the switch 48 continues to be bribed for the above period of time, V
Yo, step ul 2, ul :3 110j
According to the work, wait pif W 14jj: to 1 step dejjR
Volume decreases by 1 in step u16 1. To go.

This -2゛□“1′11i.

When it is detected in step 1115 that the volume has reached its lowest value, the lowest value of the volume is maintained by operating the switch 48.

In the sound quality control circuit 6, a line 93- is connected from the volume control circuit 5.
The signal is amplified in buffer 1 through line 98 and is applied to amplifier circuit 99 via line 98. This line 98Vζ is in the frequency band Q5511z.

220H2, 880H, 3,5KH2, 14KI (z
K and F filter times WFl 01 ”
-105 units are provided. Filter circuit 101'''ciq
The signal 8 from the control circuit 106, which receives the digital signal from path 95, is applied to transistors 107-11, which causes transistors 107-110 to be suppressed.

Transistors 107 to 11Or (is Koi/l/Ill
Capacitor 112 and resistors 113-116 are connected in association. Transistors 107 - 110 are selectively turned on by control circuit 106 .
The amount of attenuation near H2fd changes. Filter circuits 101 to 103 have the same configuration.1-1 Their circuit constants have frequency bands of 55H2, 220H2, and 880H2.
The force is changed in response to b. The filter circuit 104 includes a control circuit 125, transistors 117 to 119,
Core coil 120, capacitor 121, and resistor 122~
124, and further includes a resistor 126 and a transistor 1
27, a capacitor 1287, etc. In this way, in filter circuit 104, transistors 117-119 are selectively controlled to conduct in response to the digital signal from path 95. This changes the amount of attenuation in the vicinity of 3.5KI-12 of the audible signal.

Another filter circuit 105, filter circuit 104
It has a similar Ume modification, and the circuit constants are changed compared to the filter circuit 104.

The 4-bit signal consisting of bits DO to D3 in Table 3 is the signal that is derived to path 95 for controlling the sound quality of the 55H2, and the 8-bit signal consisting of bits AO to A7 is the signal that controls the sound quality. The control state is ejected from the output ink face 75 to be displayed by the λ polar ray tube 76 (ilj number).

Table 3 A signal similar to that shown in Table 3 has a frequency band of 220H.
It can also be used in 2,880H2, 3,5KH2 and 14KH2.

FIG. 14 is a flowchart showing specific operations of step 116a (see FIG. 4) for controlling the amount of attenuation in the frequency band 55I2 and step n17a for reducing the amount of attenuation in the frequency band 55H2. When the switch 49a is operated in step n16, the force is applied to step n16a, and in step v3 it is determined whether or not the switch 49a is operated for the first time. time W
For example, set a counter that ticks for 0.5 seconds, start the operation, and in step 5, the attenuation is the minimum and the level of the passing signal near 55) (2 (= J) is the maximum. It is determined whether or not the attenuation is the maximum, and if it is not the maximum, the attenuation amount is decreased by one step in step v6, and the passing sound volume is accordingly increased by one step R2.In step v5, it is determined that the passing sound volume is the maximum. Then, the process moves to step V7, and the control of the sound quality around 55H2 is completed.In step v3, when the switch 49a continues to be pressed, [i
', move to slurtsub ■8, check whether it is in the waiting period of 0.5 seconds or blue 2, otherwise 1 step ■9
During the operation of the switch 49a (), a waiting time of 5 seconds is clocked [7, after which the process moves to step v5. If there is a waiting time of 0.5 seconds in step v8, then
The process moves to step v7VrC.

When it is detected that the switch 49I in the frequency band 55I■2 is pressed (when you want to reduce the M signal 119 component, switch 49I is pressed in step n17P), the switch 49b is pressed in the first step It is determined whether it is a work by M'r or not, and if so, step V1
2, a counting operation is started by a counter that counts a predetermined holding time W2. 1f55 at step vl°3
Jl of frequency 1 minute near H2 (1 overtone is the minimum or not! 14J cut off 1, otherwise.

Then, the process moves to step v14, where the attenuation amount is increased by one step, and the passing amount is decreased by one step or two. After that, the process moves to step v15. When it is detected in step v13 that the passing sound it of the frequency component near 55H2 is the minimum, the process moves to step v15. When the switch 491] is operated in step vll, the process moves to step v16, and it is determined whether or not the waiting time is 095 seconds! l'lJ cut off.

If the switch 49b is not operated during the waiting time in step v16, the process moves to step v17, where a clocking operation for 0.5 seconds is performed by the counter, and then the process moves to step V13V. When it is detected in v16 that the switch 49b is being operated during the waiting time, step v15i'i:IM'J is executed. Thus, in FIG. 14, the switch 49a associated with the frequency &

49b is performed. After the judgment step of step vlO, the frequencies 220H2, 880H2, 3,
Similar operations are performed in accordance with the operations of switches 50 to 53 associated with 5KH2 and 14KH2 to achieve sound quality control.

In order to change the amount of attenuation of the frequency component of the audible signal near 55H2, switch 491 as shown in FIG.
Assume that the suppression operation is performed at time (1 to t2 and time t3 to t4. This time t1 to t2 and t3
- Time r1 of t4, waiting time is less than 0.5 seconds. Through this 'h operation, steps v3 to y in FIG.
(i's 001 work is 91 rope not t1 control circuit 106 selectively conducts/cuts off transistors 1() 7 to 110, and this causes 55112 (: J , is reduced by one step, and the passing sound it is increased by one step 1', t!? That's exactly what it says.

At time 15 to t6, switch 49 a nN O,
11. Steps v 3 , v 8 , v 9 in FIG.
v 5, v6, v7 is here, l-L
[Thus, the waiting time is 0.5 seconds 4 and the control circuit 106 is 55 seconds.
The attenuation amount 1 of the EJ audio magnification signal frequency U value near H2f=l is decreased one step at a time. After the amount of attenuation becomes the minimum, the amount of attenuation does not change even if the switch 49a remains operated and remains at the maximum value.

As shown in FIG. 15 (2), one interval t7 to t8 and time t
9~tl (switch 49b for less than 0°5 seconds at NC)
When is operated, the DilJ operation of steps vll to v15 is achieved. As a result, the amount of attenuation of the filter 101 is reduced by 11 Iηh, and the overlapping sound volume is increased by one step R. At time tll, tl 2, switch 191) continues for a waiting time of 0.5 seconds or more.
When operated, the frequency component of 55H2 + near audible signal due to filter 1()1 is 1 step R every 0°5 seconds.
Step v16, v l so as to decrease by 2
7, v l 3, v 14, v l 5 were achieved.

Ru. After the attenuation (it reaches the maximum and the passing sound it of the frequency component above the audible value near 55H2 becomes the minimum, even if the switch 49b is operated, the attenuation will also be 4"
is maintained at maximum.

The signal via the line 130 from the tone control @41 circuit 6 is the tone balance 1t control circuit 111! '+7. In spinal balance control circuit 7, the audible signal from line 130 is routed from capacitors 131-134 to attenuator 13.
9-142 to amplifier circuits 135-138. The attenuation amount t of attenuators 1.39 to 141 is
is determined 714 by the control circuit 143 which receives the digital signal from 5.

The control circuit 143 responds to the digital signal from the bus 95, and when the switch 56 is operated, the attenuator l 39 , 1.40 corresponding to the speaker l 1 , 1.2 provided in the 1rJ section of the vehicle interior 9 is activated. At this time, the attenuation amount of the attenuators 141, 142 provided at the rear of the vehicle compartment 9 and corresponding to the loudspeakers l3, 1.4 is increased. Control the volume to be low. When the trench switch 57 is operated, the attenuators l 39 and l 40 corresponding to the speakers 11 and 12 provided in the four parts of the vehicle compartment 9 are attenuated ■1
Increase 1 to 1. The attenuator 1 corresponding to the speaker 13 and 14 is installed at the rear of the vehicle compartment 9 to reduce the sound part.
41 and 142 attenuation to reduce the attenuation of those speakers.
3. Increase the volume of l4. When the switch 58 is operated, the speaker 1 installed on the right side of the single room 90
Attenuators 140 and 142 corresponding to 2°14 are attenuated to lower the volume to lower the volume.
9, l Increase the attenuation amount of 41 to lower the volume. When the switch 59 is operated, the attenuation amount of the attenuators 139 and 141 corresponding to the speakers 11 and 13 provided on the left side of the vehicle interior 9 is decreased to increase the volume.
The attenuation amount of the attenuators 140 and 142 corresponding to the speakers 12 and 14 provided on the right side is increased to reduce the volume. The digital signal led from the bus 95 is determined as shown in Table 4, and is determined so that the volume corresponding to each of the attenuators 139 to 142 changes by 1 s' by %R3.

(Leaving space below) Part 4: When performing surface volume balance, move from step zl in Figure 16 to steps 22 to z5, and press switch 5.
6 to 59 are operated, a judgment 111 is made as to whether or not the switch 56 has been operated. -1 Yes, h, in step z8, a counter that counts a predetermined waiting time W3, for example, 0.5 seconds, starts counting.In step 29, the volume of the speaker 12 provided on the front cloth section reaches its maximum. It is determined whether the sound 1 of the speaker 12 is the maximum, and if it is not the maximum, the process moves to step zlO and the volume is increased by one step R3.If the sound 1 of the speaker 12 is the maximum, the process moves from step z9 to step zll.
Move to. In step zll, it is determined whether the volume of the speaker 11 provided on the left side of the song is at the maximum level hl; if not, step zlo occurs.

At z12, the volume is increased by one step R3.

In step z13, no.1. It is determined whether or not the volume of the speaker 14 is at the minimum, and if it is not, the volume is decreased by one step in step z14. In step z15, it is determined whether or not the volume of the speaker 13 provided at the rear left portion is at the minimum. If not, the volume is decreased by one step R3 in step z16.

When it is determined in step z7 that the switch 56 is not operated for the first time but is operated continuously, the process moves to step z17, and it is determined whether or not the counter is counting the waiting time of 0.5 seconds. , if counting is not in progress, wait 11;1(1'+lO) at step z18.

A clocking operation of 5 seconds is started, and then the process moves to step z9. At step z17, wait I+, 71t'd O,
5 seconds clock! When I was working on lνJ
Move one step and end the operation.

When it is detected in step z3 that the switch 57 has been turned to 4, steps z27 to z38 similar to steps 27 to 218 described in n11 are executed, and the speaker installed in the 1Q section of the passenger compartment 9 is turned on. The volume of 11 and 12 has been reduced, and the volume of 11. The volume of the left speakers 13 and 14 is increased.

When it is detected in step z4 that the switch 58 has been operated, steps 27 to z58 corresponding to steps 27 to z18 are executed. This fLK increases the volume of the right speaker 12j14 and decreases the volume of the left speaker 11.13. Step 2
When it is detected in step 5 that the switch 59 has been operated, steps z67 to z78 corresponding to steps z7 to z18 described in step 11h are executed. Due to this, the volume of the right speaker 12.14 is decreased, and the volume of the left speaker 11.1 is decreased.
3 volume is increased.

Referring to FIG. 17, when the switch 56 is operated by less than the predetermined waiting time open W3 from time t1 to t2 as shown by (+) in FIG.
(is increased by one step R3 as shown in FIG. 17 (5), and the volume of the front left speaker 11 is increased by one step R3 as shown in FIG. 17 (6).
The volume of the rear right speaker 14 is decreased by one step R3 as shown in FIG. 17 (7), and the volume of the rear left speaker 13 is also decreased by one step R3.

Assume that the right switch 58 is operated between times t3 and t4. At time 1111 from time t3 to time t4, the waiting time W3 is less than the predetermined waiting time W3. At this time, Fig. 17 (
5) and as shown in FIG. 17 (7), the volume of the front right speaker 12 and the rear right speaker 14 increases, and
The volume of the front left speaker 11 and rear left speaker 13 shown in FIG. 17 (6) and FIG. 17 (8), respectively, decreases.

As shown in FIG. 17(2), when the rear switch 59 is operated at a time interval t5 to t6 that is longer than the waiting time W3, steps z29 to z36 are executed via steps 27 to 237 and z38, and the previous step is executed. right speaker 1
2 and nfT The volume i of the left speaker 11 decreases by one step R3 for every waiting time W3 as shown in FIGS. The sound 11[ of the rear left speaker 13 increases by one step R3 for every waiting time W3 as shown in FIGS. 17(7) and 17(8). When the volume of speakers 11 and 12 is the lowest and when speaker 1
3. When the volume of 14 is maximum,
Even if 7 continues to be operated, the volume state is maintained.

When the switch 59 is operated continuously for the waiting time W3 or more from time t7 to t8 as shown in FIG. 17(4), the sound from the front right speaker 12 and the rear right speaker 14 is As shown in FIG. 17 (5) and FIG. 17 (7), one stage R3 is generated for each waiting time W3.
It gradually decreases. The volumes of the sweet front left speaker 11 and rear speaker 13 are as shown in FIG. 17 (6) and FIG. 17 (8).
), the wait time increases by one step R3 for each waiting time W3. Such operations are performed by executing steps z67, z77, z78, z69 to z76 in FIG.

As described above, according to the present invention, the receiver and the tape recording/playback device are controlled by a digital signal, and after receiving the digital signal, the mode selection switch selectively selects between the receiver and the tape recording/playback device. Each function selection switch corresponds to each function of the receiver and each function of the tape recorder/player, respectively, and the operation of the function selection switch selects the receiver mode or mode selection switch selected by the mode selection switch. Since the functions of the tape recorder/player are performed, only a small number of switches are required to control the receiver and the tape recorder/player.

[Brief explanation of the drawing]

1 is a block diagram of an embodiment of the present invention, FIG. 2 is a front view of the operation panel 22, FIG. 3 is a specific electrical circuit diagram of the key-powered device 20, and FIG. Flowchart for explaining the operation according to the operation, No. 5
The figure is a flowchart explaining the operation when the function selection switch 31 is operated in the case that the switch 25 for receiving modulated broadcasting and frequency modulated broadcasting is not operated.
Figure 6 shows the operation of the scan process in Figure 5.8)1-
FIG. 7 is a flowchart for explaining the operation of the brisset gyan process in step m23VC in FIG. 5, and FIG. 8 is a flowchart for explaining the tape recording/playback 11. 'I'
The flowchart for performing ll'1 in FIG. +Switch 27 to create
Step n3 in Figure 4 when M is created
a A flowchart for explaining the operation of amateur radio processing in VC, FIG. 10 is a concrete block diagram of the volume control circuit 5, sound quality control circuit 1iF 16 and volume balance control circuit 7, and FIGS. 11 and 12 are volume FIG. 13 is a flowchart for explaining the operation of the control circuit 5; FIG. 13 is a waveform diagram for explaining the operation of the volume control circuit 5;
4 is a flowchart for explaining the operation of the sound quality control circuit 6, FIG. 15 is a waveform diagram for explaining the operation of the sound quality control circuit 6, and FIG. 16 is a waveform diagram for explaining the operation of the volume balance control circuit 7. The flowchart, FIG. 17, is a waveform diagram for explaining the operation of the volume balance control circuit 7. l...processing device, 2...receiver, 3...tape recording/player, 5...volume control circuit, 6...sound quality control circuit, 7...volume balance control circuit, 9 ...vehicle compartment,
11-14...Speaker, 20...Key human power device,
22... Operation pile, 23... Tape insertion slot, 2
4...Mode selection switch, 31...Function selection switch, 39...Display unit, 46; 47, 48
...Switch for volume control, 49-53i54・
・Switch for sound quality control 1, 55; 56 to 59・
・Volume) Switch for Kurance, 91,139~
142...Ateneta, 96, l O6, l 2
5... Control circuit, 101-105... Filter agent Patent attorney I! A Education Department Figure 11 Figure 12

Claims (1)

[Claims] A receiver that uses a phase-locked loop frequency synthesizer, a tape recorder/player that performs multiple functions in response to a digital signal, and a receiver and tape recorder/player that perform multiple functions. a mode selection switch that is activated by
A receiver selected by the mode selection switch in response to outputs from such a function selection switch individually and commonly corresponding to each of the plurality of functions of the playback device, and the mode selection switch and the function ni switch. The audio device 1 is characterized by further comprising a control means for bringing the tape recording/I4 gradation device into an operating state selected by a function selection switch.