JPH0664779B2 - Tape recorder - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape recorder having a plurality of deck sections and capable of recording a reproduction signal of one deck section on another deck section.

2. Description of the Related Art In recent years, one tape recorder is often used so that a reproduction signal of one deck unit can be recorded in another deck unit (hereinafter, this function is referred to as dubbing). However, in the conventional tape recorder, when the dubbing is started, that is, when the playback side deck section is set to the playback mode and the recording side deck section is set to the recording mode, a large load is applied to the mode and the solenoid for driving the mechanism section of each deck section. In addition, for example, in a tape recorder having a one-motor type mechanism, as shown in FIG. 4, the solenoids of the mechanisms of a plurality of decks are simultaneously attracted for about 50 milliseconds from the start of dubbing, so that a large amount exceeding 2 A is exceeded. Current (peak current is 2.
It will also be 5A), and for about 0.3 seconds, a large current of about 1A will flow because the head substrate is moved to the play position at the same time by the motors of the mechanisms of the multiple decks. As described above, since the power supply circuit of the tape recorder supplies a large load current, the tape recorder of the AC power supply has to cope with it by using very expensive parts such as a transformer and a rectifying capacitor. In addition, the dry battery driven tape recorder has a drawback that the life of the dry battery is shortened.

In order to solve the above-mentioned problem of the power supply circuit, there is a tape recorder in which, at the start of dubbing, the mechanisms of a plurality of deck sections are controlled so as not to be driven at the same time. An example of the above-described conventional tape recorder will be described below with reference to the drawings.

FIG. 5 is a load current waveform at the start of dubbing, and FIG. 6 is a timing chart of the modes of the input switch and the deck portion at the start of dubbing. In Fig. 6, when the playback switch on the playback deck and the recording switch on the recording deck are pressed at the same time, the recording deck first switches from the stop mode to the recording mode, and after a predetermined time elapses, here about 0.4 seconds later. The playback deck moves from stop mode to playback mode. The load current waveform of the tape recorder at this time is shown in FIG. As can be seen from Fig. 5, the peak current is 1.5 because the deck on the recording side enters the recording mode and the current becomes constant, and then the deck on the reproducing side enters the playback mode.
It becomes smaller than A, the power supply circuit can be constructed at a low cost, and the dry battery life of the DC drive tape recorder is extended.

Problems to be Solved by the Invention However, in the above tape recorder, since the mechanisms of the plurality of deck sections are controlled not to be simultaneously driven at the start of dubbing, as shown in the timing chart of FIG. , Even though the tape recorder user tried to press the playback switch on the playback deck and the recording switch on the recording deck at the same time, the playback switch on the playback deck precedes the recording switch on the recording deck. When is pressed, the playback side deck section goes into the playback mode, and the recording side deck section goes into the recording mode after a lapse of a predetermined time. Therefore, there is a possibility that some signals that have been started to play cannot be recorded. Had.

In view of the above problems, the present invention allows the recording side deck unit to be in the recording mode first, even if the reproduction switch of the reproducing side deck unit is pressed slightly earlier than the recording switch of the recording side deck unit at the start of dubbing, and the predetermined time is elapsed. The present invention provides a tape recorder in which the reproduction side deck section is controlled to be in the reproduction mode after the elapse and the reproduction signal can be recorded from the beginning and the maximum current is reduced.

Means for Solving the Problems In order to solve the above problems, a tape recorder according to the present invention includes a first deck section having at least a reproducing function and a reproduction switch for operating the first deck section. 1
A switch portion, a second deck portion having a function of recording at least a reproduction signal of the first deck portion, a second switch portion including a recording switch for operating the second deck portion, and a first And a switch memory section for storing the signal of the switch section of the first deck, and a first discriminating operation command for the first deck section or an editing operation instruction for recording the reproduction signal of the first deck section on the second deck section. A first timer unit for generating a predetermined time period, a second timer unit for generating a second predetermined time period as a time period during which the starting current flows when the second deck unit shifts to the recording mode, and When the reproduction switch of the first switch unit and the recording switch of the second switch unit are pressed within the predetermined time of 1, the second deck unit is first set to the recording mode, and the second predetermined time has elapsed. Later, the first deck moves to playback mode First deck so that portion and the second
And a deck control unit for controlling the deck unit.

The present invention has the above-described configuration, and when the reproduction switch of the first switch unit or the recording switch of the second switch unit is pressed and then another switch is pressed within the first predetermined time, the deck control is performed. Section controls the first deck section to be in the reproduction mode after the second predetermined time has elapsed after first setting the second deck section to the recording mode. Even if the playback switch of the switch section of is pressed before the recording switch of the second switch section, the second deck section enters the recording mode first, so that the playback signal can be recorded from the beginning and the second deck section After the second predetermined time elapses after the recording mode is set, the first deck section is set to the reproduction mode, so that the maximum current can be reduced.

Embodiment A tape recorder according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of this embodiment, and 1 is a microcomputer. In each part built in this, 2
Is a program counter unit including a ROM and a program counter, 3 is an instruction decoder unit for decoding the contents of the ROM, 4 is a data memory unit including a RAM, etc.
Switch memory unit 4 for storing signals of the switch unit 11 of
1 and a first timer unit 42 for generating a first predetermined time
Then, after the first deck section 10 or the second deck section 20 described later enters the reproduction mode or the recording mode, the second deck section 20 or the first deck section 10 records within the second predetermined time. It includes a second timer section 43 for generating a second predetermined time in order to prevent the mode or the reproduction mode. Reference numeral 5 denotes a logical operation unit section for making various data processing determinations, and internally includes a deck control section 51 for controlling the first deck section 10 and the second deck section 20. 6
Is an input / output unit for interfacing with the outside,
Inside the first switch unit 11 and the second switch unit 21
It includes a switch input section 61 for inputting the above signal and a control output section 62 for controlling the first mechanism 10 and the second mechanism 20. Reference numeral 7 is a clock generator. The above-mentioned units are connected by a data bus 8 and are also connected by a predetermined clock line 9 from the clock generation unit 7, and perform various processes based on a program stored in the ROM of the program counter unit 2. To do.

10 is a first deck section having at least a reproducing function,
Reference numeral 11 is a first switch section including a reproduction switch 12 for operating the first deck section 10. Reference numeral 20 is a second deck portion having a function of recording a reproduced signal of at least the first deck portion 10, and reference numeral 21 is a second switch portion including a recording switch for operating the second deck portion 20.

The operation of the tape recorder configured as described above will be described below with reference to the block diagram of FIG. 1, the second flowchart and the timing chart of FIG.

A of 301 and B of 326 are connectors, which are connected in the middle of the whole flow chart (not shown) by the microcomputer 1. First, when the recording switch 22 and the reproduction switch 12 are pressed at the same time at the start of dubbing, the switch memory unit 41 is cleared in process step 302, and the switch input unit 61 is set to the first position in input step 303.
The signal from the switch unit 11 is input, and the determination step 304
Since the reproduction switch 12 has been pressed in step 305, the flow proceeds to processing step 305, the input signal is stored in the switch memory unit 41, the count value of the first timer unit 42 is cleared in processing step 306, and then the first step in processing step 307. The count value of the timer unit 42 is counted up, the signal of the second switch unit 21 is input at the input step 308, and the recording switch 22 is pressed, so that the determination step 309 is performed.
To the output step 317, the control output unit 62 outputs the second
The deck section 20 of the recording medium is set to the recording mode, and the processing step 318
After clearing the count value of the second timer unit 43 at, the count value of the second timer unit 43 is counted up at processing step 319, and the process proceeds to the judgment step 321 via the input step 319, and the state of the reproduction switch 12 is changed. According to the above, the flow goes through the processing step 322 or directly to the judgment step 323. In the determination step 323, until the second timer section 43 reaches the second predetermined time, the determination step 323 → 319 → 320 → 321 → 322 →
The loop of 323 is repeated, and the second timer unit 43
When the second predetermined time is reached, the flow goes from a judgment step 323 to a judgment step 324, and since the signal of the reproduction switch 12 is stored in the switch memory section 41, the output deck 325 puts the first deck section 10 into the reproduction mode. After that, the connector 326 is reached. Therefore, when the reproduction switch 12 and the recording switch 22 are pressed at the same time, the second deck section 20
Becomes the recording mode, and after the second predetermined time has elapsed, the first deck section becomes the reproduction mode. Next, as shown in the timing chart of FIG. 3, press the reproduction switch 12,
The operation of the first deck section 10 and the second deck section 20 when the recording switch is pressed within the first predetermined time will be described. From connector 301 to processing step 302 → 303 →
304 → 305 → 306 → 307 → 308 → judgment step 309, and the recording switch 22 is not pressed, and therefore the judgment step 310 is performed until the first timer unit 42 reaches the first predetermined time or the recording switch. Until step 22 is pressed, decision step 310 → 307 → 308 →
The loop of 309 → 310 is repeated, and as shown in FIG. 3, if the recording switch 22 is pressed within the first predetermined time, the flow goes from the judgment step 309 to the output step 317,
Hereinafter, up to the connector 326, the same operation as when the reproduction switch 12 and the recording switch 22 are simultaneously pressed is performed. Therefore,
As shown in FIG. 3, when the recording switch 22 is pressed within the first predetermined time after the reproduction switch 12 is pressed, first, the second deck unit 20 enters the recording mode, and then the second predetermined time. After a lapse of time, the first deck unit 10 enters the reproduction mode.

As described above, according to the present embodiment, the first
And a first switch section 11 including a reproduction switch 12 for operating the first deck section 10.
A second deck section 20 having a function of recording a reproduction signal of the first deck section 10; and a second switch section 21 including a recording switch 22 for operating the second deck section 20, The switch memory unit 41 for storing the signal of the first switch unit 11, the first timer unit 42 for generating the first predetermined time, the first deck unit 10 or the second deck unit 20 in the reproduction mode or After entering the recording mode, a second predetermined time is generated to prevent the second deck unit 20 or the first deck unit 10 from entering the recording mode or the reproduction mode within the second predetermined time. Timer unit 43
If the recording switch 22 of the second switch unit 21 is pressed within the first predetermined time after the reproduction switch 12 of the first switch unit 11 is pressed, the second deck unit is first pressed. 20 in a recording mode, and a deck control section 51 for controlling the first deck section 10 and the second deck section 20 so that the first deck section 10 becomes the reproduction mode after the second predetermined time has elapsed. By providing, when dubbing starts,
If the recording switch 22 of the second switch unit 21 is pressed within the first predetermined time period after the reproduction switch 12 of the first switch unit 11 is pressed, the deck control unit 51 first outputs the second switch. Since the first deck unit 10 is controlled to be in the reproduction mode after the second predetermined time has elapsed after the deck unit 20 is set to the recording mode, the deck user mistakenly reproduces the first switch unit 11. Switch 12 to second switch section 2
Even if the recording switch 22 of No. 1 is pressed before, the second deck section 20 enters the recording mode first, so that the reproduction signal can be recorded from the beginning, and the second deck section 20 enters the recording mode. Since the first deck unit 10 is in the reproduction mode after a predetermined time of 2, the maximum current can be reduced.

EFFECTS OF THE INVENTION As described above, the tape recorder of the present invention includes the first deck section having at least a reproducing function, and the first switch section including the reproduction switch for operating the first deck section.
A second deck section having a function of recording at least a reproduction signal of the first deck section, a second switch section including a recording switch for operating the second deck section, and a signal of the first switch section And a switch memory section for storing a first predetermined time for determining whether it is an independent operation command for the first deck section or an edit operation command for recording the reproduction signal of the first deck section on the second deck section. A first timer section for generating a second predetermined time as a time during which the starting current is flowing when the second deck section shifts to the recording mode; and a first timer section within the first predetermined time. When the reproduction switch of the first switch section and the recording switch of the second switch section are pressed, the second deck section is set to the recording mode first, and after the second predetermined time has elapsed, the first Make sure the deck section is in the playback mode. And the deck control unit for controlling the second deck unit, the first predetermined time after the reproduction switch of the first switch unit or the recording switch of the second switch unit is pressed. If another switch is pressed inside, the deck control unit first puts the second deck unit in the recording mode and then, after the second predetermined time elapses, the first
Since the deck section of the second switch section is controlled to be in the reproduction mode, even if the deck user mistakenly presses the reproduction switch of the first switch section before the recording switch of the second switch section, Since the recording mode is first set, the reproduction signal can be recorded from the beginning, and the second predetermined time period elapses after the second deck section is set to the recording mode, and the first deck section is set to the reproduction mode. , Which can reduce the maximum power supply, especially tape recorders that require a large current when starting the solenoid etc. to drive the mechanism of the deck, tape recorders that use dry batteries as power supplies, and tapes that are configured with an inexpensive power supply circuit It has an excellent effect in a recorder.

[Brief description of drawings]

FIG. 1 is a block diagram of a tape recorder in an embodiment of the present invention, FIG. 2 is a flow chart for explaining the operation of the same embodiment, and FIG. 3 is a timing chart for explaining the operation of the same embodiment. 4 and 5 are load current waveform diagrams for explaining a conventional tape recorder, FIG. 6, and FIG.
The figure is a timing chart for explaining a conventional tape recorder. 10 ... first deck part, 20 ... second deck part, 1
1 ... first switch section, 12 ... reproduction switch, 21
...... Second switch section, 22 ... Recording switch, 41 ...
... switch memory section, 42 ... first timer section, 43 ...
… Second timer section, 51 …… Deck control section.

Claims (1)

[Claims] 1. A first deck section having at least a reproduction function, a first switch section including a reproduction switch for operating the first deck section, and a reproduction signal of at least the first deck section. A second deck section having a recording function, a second switch section including a recording switch for operating the second deck section, and a switch memory section for storing a signal of the first switch section, A first timer for generating a first predetermined time period for discriminating between an independent operation command of the first deck unit and an editing operation command for recording a reproduction signal of the first deck unit on the second deck unit. Section, a second timer section for generating a second predetermined time as a time during which a starting current is flowing when the second deck section shifts to a recording mode, and the first timer section within the first predetermined time. The reproduction switch of the switch section of 1. Switch and the recording switch of the second switch section are pressed, the second deck section is first set to the recording mode, and the first deck section is set after the second predetermined time has elapsed. A tape recorder comprising: a deck control unit that controls the first deck unit and the second deck unit so as to shift to a reproduction mode.