JPS6346905Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape playback device, and particularly to a tape playback device having a repeat playback function.

Conventionally, tape playback devices have a repeat function that repeatedly plays a specific part of a tape on which information is recorded a specified number of times.
A dedicated key switch is provided for setting the number of repeats, and the number of repeats can be set by pressing this key switch a desired number of times. Further, the set number of repeats is visually displayed on a display device for displaying the number of repeats. As described above, in a tape playback device equipped with a key switch and a display device dedicated to the repeat function, the number of types of switches and display elements in the playback device operation section has increased, resulting in a decrease in operability and space efficiency. In particular, when a miniaturized system such as a car stereo requires effective use of limited space, the reduction in operability and space efficiency is a serious drawback.

The present invention eliminates these drawbacks of the conventional technology,
It is an object of the present invention to provide a tape playback device having a repeat playback function with improved operability and space efficiency without requiring a special switch or display device for repeat playback.

This object is achieved by the following control device for a tape reproducing device according to the present invention. That is, this device is a control device for a tape playback device that can repeatedly play back a predetermined portion of a tape on which information is recorded, and includes a manual operation means and a control device for controlling the tape playback device in response to the operation of the manual operation means. A control circuit for shifting to a regeneration mode, and a control circuit that instructs the control circuit to enter a repeat regeneration mode when the manual operation means is operated while the control circuit is in the regeneration mode, and thereafter controls a signal in response to the operation of the manual operation means. and a control circuit for repeatedly playing a predetermined portion of the tape a number of times related to the signals provided from the signal transmitting means.

Next, an embodiment of a control device for a tape reproducing apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, this device has a system controller 10. This is a logic circuit or processor that centrally controls the operations of the tape playback device, including playback (PLAY), fast forward (FF), rewind (REW),
In response to key switch operations such as STOP, it outputs plunger control signals and motor control signals to control operations such as tape playback, fast forwarding, rewinding, and stopping, respectively. The plunger control signal is a signal that controls a solenoid plunger (not shown) that brings the playback head and pinch roller into or out of contact with the tape, and the motor control signal is a signal that controls the motor (not shown) that drives the capstan, reel, etc. (not shown).

The playback switch PLAY is connected by a lead 12 to the playback input PLAY of the controller 10 and to the input CK of the flip-flop F1 and
The other input 16 of the AND gate G1 is connected to the output Q of the flip-flop F1,
The output 18 of the gate G1 is connected to the repeat program input RP of the controller 10. The CL terminal of the flip-flop F1 is connected to the output lead of the controller 10. The Q output of the flip-flop F1 is also connected to the repeat input REP of the controller 10. Other switches FF, REW, STOP
etc. are connected to the system controller 10 by a group of leads 30.

The repeat program input RP and the repeat input REP of the system controller 10 are connected to a repeat control circuit (not shown) internal to the controller 10, and this circuit is driven, i.e., repeats, by the repeat input REP being at a high level. mode and repeat program input
This is a logic circuit that calculates the number of pulses given to RP and sets the number of repeats.

The switch PCLR is a program clear switch for clearing the set program, that is, the number of repeats in this case.
Connected to PCLR.

The repeat count display output IND of the system controller 10 is connected to a numeric display 36 by a group of leads 34. The numeric display device 36 visually displays the number of repeats using, for example, a 7-segment numeric display or light emitting elements such as light emitting diodes arranged corresponding to the numeric values. Some tape playback devices have a so-called skipping song selection function that allows a specified number of blocks of information, such as songs, recorded on a tape to be skipped over and selected. In such devices, the repeat mode and skip selection mode are never selected at the same time. The display device 36 does not necessarily need to be provided exclusively for displaying the number of repeats as described above, and other setting values such as the number of skipped songs that are not displayed at the same time as displaying the number of repeats can be displayed on the display device 36. controller 10
may be configured.

Next, the operation of this apparatus will be explained with reference to the operation flow diagram of the system controller 10 shown in FIG. First, when the playback switch PLAY is pressed (step 100, FIG. 2), the controller 10 inputs
This is detected when PLAY becomes high level, and the output, which is normally at a high level, is set to a low level to reset the flip-flop F1, and the system shifts to normal playback operation (102). In addition,
The output is at a high level except during a playback operation, but remains at a low level even if the rewind switch REW is pressed during a playback operation to perform a rewind operation.
If the playback switch PLAY is further pressed during the playback operation, lead 12 goes high and flip-flop F1 is set. Its Q output therefore goes high, energizing one input 16 of AND gate G1 through lead 16;
On the other hand, the repeat input REP of controller 10
(104). As a result, the controller 10 shifts to repeat mode (10
6).

Since one input 16 of AND gate G1 is energized, the high level signal on lead 12 is AND
is transmitted from the other input 14 of gate G1 to its output 18 and input to the repeat program input RP of controller 10. Controller 10 thereby detects that the playback switch PLAY has been pressed (108); Count the number of times (110 times). Further, when the playback switch PLAY is pressed, the controller 10 counts the pulses received at the input RP in response to this, interprets this counted value as the set value for the number of repeats, and visually displays it on the numerical display device 36 (the same 112). The controller 10 repeatedly reproduces the same information block recorded on the tape according to the number of repeats, that is, the count value thus set (step 114). When the same block has been reproduced a number of times corresponding to this count value, the system exits the repeat mode.

In the above repeat mode, when the program clear switch PCLR is pressed (116, 1
18) Controller 10 is a high level input PCLR
This is detected, the above-mentioned count value, that is, the set value of the number of repeats is cleared (120), and a new counting of the number of times the switch PLAY is pressed is started (108). When another switch is pressed (116, 124), the controller 10
resets the repeat mode and sets flip-flop F1 by setting the output to high level.
(122) and shifts to the operation mode corresponding to that switch.

As described above, according to the present invention, existing switches such as the playback switch, which is not operated in the playback mode in conventional tape playback devices, can be effectively used not only for setting the repeat mode but also for setting the number of repeats. Accordingly, many functions can be realized with a small number of switches arranged in a small space, and the operability of the tape playback device is improved and space efficiency is improved. In addition, in the case of a tape playback device that has an interlaced song selection function, there is no need to provide an independent display system for displaying the number of repeats.
Since the number display device that displays the number of interlaced music selections can be configured to display the number of repeats only in the repeat mode, the ease of handling and space efficiency of the display system are improved.
Therefore, the cost of the device can also be reduced. A system controller can also be realized by adding or modifying a program to a conventional controller, and peripheral circuits such as flip-flops and gates required to realize this function can be integrated with the controller. . The control device for a tape playback device according to the present invention is particularly suitable for applications such as car stereos that require multi-functionality in a limited space and require easy operation.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of a control device for a tape reproducing apparatus according to the present invention, and FIG. 2 is an operation flow diagram showing the operation of the system controller shown in FIG. Explanation of symbols of main parts, 10...System controller, F1...Flip-flop, G1...
AND gate, 36...numeric display device.

Claims (1)

[Claims for Utility Model Registration] (1) A control device for a tape playback device capable of repeatedly playing back a predetermined portion of a tape on which information is recorded, comprising a manual operation means and an operation of the manual operation means. a control means for setting the tape playback device to a playback mode operation in response to the playback mode; and when the manual operation means is operated while the control means is in the playback mode, the control means causes the control means to perform repeated playback. a signal transmission means for instructing a mode and thereafter applying a signal to the control circuit in response to operation of the manual operating means, the control means transmitting a signal a number of times related to the signal applied from the signal transmission means. A control device for a tape playback device, characterized in that the playback of a predetermined portion of the tape is repeated. (2) The signal transmission means includes a bistable circuit that takes one of two states, and the control means sets the bistable circuit to one of the two states when the reproduction mode is entered. , when the bistable circuit is set to the one state, it assumes the other of the two states in response to the next operation of the manual operating means, and the bistable circuit is set to the one state. The tape playback according to claim 1, characterized in that the tape playback device includes a gate circuit which supplies a pulse corresponding to the operation of the manual operation means to the control means as the signal when the circuit is in the other state. Device control device. (3) The control device for a tape reproducing device according to claim 1, further comprising means for manually clearing the number of times associated with the signal in the control means. (4) The tape reproducing device has an interlaced song selection function, and the number of times related to the signal is visually displayed on a means for displaying the number of songs in the interlaced selection. A control device for a tape playback device according to any one of items 1 to 3.