JPH0510259Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a mode control device for a cassette tape recorder, and is particularly suitable for use in a so-called one-way type in-vehicle cassette tape recorder that allows playback in only one direction. be.

<Prior Art> Conventionally, when a loading operation is performed, the cassette holder is brought to the cassette playing position, and the tape drive mechanism is then put into the playback state using autoplay control, and when the tape end is detected in the playback state, the tape drive is started. A mode control device for a cassette tape recorder is known that performs auto-eject control to stop the mechanism and subsequently bring the cassette holder to the cassette loading/unloading position.

<<Problems to be Solved by the Invention>> According to the conventional mode control device, the end of the tape is detected by auto-eject control based on the reel pulse from the rotation detector that detects the rotation of the reel stand in the playback state. Then, the cassette holder is brought to the cassette loading/unloading position, and the operator is prompted to turn over the cassette loading surface or replace the cassette. However, if the operator wants to listen to the same side of the cassette loaded in the cassette holder again, there is no need to eject the cassette from the cassette holder and reload it. ,
Perform the pressing operation on the cassette.

Then, the conventional mode control device brings the cassette holder to the cassette playing position as described above and continues to put the tape drive mechanism into the playing state, but since the ejected cassette reaches the end of the tape and is loaded again, the operation is stopped. If the person does not continue to rewind the tape, the end of the tape will be detected after a second or two based on the reel pulse from the rotation detector, the tape drive mechanism will be stopped, and the cassette holder will be inserted again. It ends up being brought to the cassette loading/unloading position.

Thus, according to the conventional mode control device,
The operator must quickly perform the rewinding operation following the above-mentioned loading operation within a short period of time after the cassette holder is brought to the cassette playing position until the mode control device detects the end of the tape. Ta.

<Means for Solving the Problems> In order to solve the above-mentioned problems, the mode control device of the present invention is designed to remove the cassette from inside the cassette holder after the cassette holder is brought to the cassette loading/unloading position by auto-eject control. first means for detecting that a loading operation has been performed without being ejected; and in response to the output of the first means, the tape drive mechanism continues to play even when the cassette holder is brought to the cassette playing position. A second means for not setting the state is provided.

<Operation> According to the mode control device of the present invention described above, after the cassette holder is brought to the cassette loading/unloading position by auto-eject control, the loading operation is performed without the cassette being ejected from the cassette holder. When the first means detects
Although the means brings the cassette holder to the cassette playing position, it does not put the tape drive mechanism into the playing state.

<<Example>> Hereinafter, an example of the present invention will be described with reference to the drawings.

Figure 1 shows a block diagram of the present invention.
The operation panel 1 includes a playback switch 1 ₁ , a rewind switch 1 ₂ , a fast forward switch 1 ₃ , a stop switch 1 ₄ ,
Loading switches ₁₅ and ejection switches ₁₆ are arranged. When the microcomputer 2 (hereinafter abbreviated as microcomputer 2) detects the operation of these switches, it controls the tape drive mechanism 3 and the cassette holder moving mechanism 4 to the corresponding operating states via the drive circuit 5. The above-mentioned tape drive mechanism 3 and cassette holder moving mechanism 4 are disclosed in Utility Application No. 102929/1989 and Japanese Patent Application No. 59/1989 filed by the present applicant.
Reference is made to No. 144346.

Furthermore, the microcomputer 2 detects the end of the tape based on the reel pulse S ₁ from the rotation detector 7 that detects the rotation of the supply reel stand 6, and detects the end of the tape based on the detection signals S ₂ and S ₃ from the holder position detection switches 14 and 15. Based on this, the cassette loading/unloading position and the cassette playing position of the cassette holder 8 are detected. Furthermore, based on the detection signal _S4 from the cassette detection switch 16, the microcomputer 2 detects whether the cassette 9 in the cassette holder 8 has been ejected when the cassette holder 8 is brought to the cassette loading/unloading position. In the figure, 10 is a take-up reel, 11 is a reproduction head, 12 is a capstan, and 13 is a pinch roller.

The operation of the above-described configuration will be explained below. In the playback state, when the microcomputer 2 detects the end of the tape based on the reel pulse _S1 from the rotation detector 7, it proceeds to the subroutine shown in the flowchart of FIG. 2, and in step S1 stops the tape drive mechanism 3. Subsequently, in step S2, the cassette holder 8 is brought to the cassette loading/unloading position. That is, auto-eject control is performed. And microcontroller 2
is the loop of steps S3 to S5 to cassette holder 8.
The detection signal from the cassette detection switch 16 is
Based on _S4 , it is detected whether the cassette 9 in the cassette holder 8 has been ejected or whether the loading switch ₁₅ has been operated.

If the loading switch ₁₅ is operated without the cassette being ejected within 10 seconds, the microcomputer 2 brings the cassette holder 8 to the cassette playing position in step S6, and then moves the cassette holder 8 to the cassette playing position in a loop of steps S7 and S8. It is detected whether 10 seconds have elapsed since the cassette was brought to the playing position or whether the rewind switch ₁₂ was operated.

If rewind switch 1 _{or 2} is operated within 10 seconds,
The microcomputer 2 terminates this subroutine, returns to a main routine (not shown) that performs control similar to a conventional mode control device, and puts the tape drive mechanism 3 into a rewinding state. If the microcomputer 2 detects that 10 seconds have elapsed in step S7, it brings the cassette holder 8 to the cassette loading position in step S9, and returns to the main routine. In addition, step S3 detects that 10 seconds have passed, and step S4
Also when it is detected that the cassette 9 in the cassette holder 8 has been ejected, the process returns to the main routine.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, according to the flow chart of FIG. 2, steps S7 and S9 are provided to inform the operator that the cassette 9 has reached the end of the tape.
Of course, these steps may be omitted.

<<Effect of the invention>> As described above, according to the mode control device of the present invention, after the cassette holder is brought to the cassette loading/unloading position by auto-eject control, if the loading operation is performed without the cassette being ejected,
Even when the cassette holder is brought to the cassette playing position, the tape drive mechanism is not put into the playing state, so the end of the tape is not detected and the cassette holder is not brought to the cassette loading position again. Therefore, after performing the loading operation, the operator can perform the rewinding operation with plenty of time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a flow chart for explaining the operation of the present invention. 2...Microcomputer, 3...Tape drive mechanism, 4...
...Cassette holder moving mechanism, 6... Supply reel,
7...Rotation detector, 8...Cassette holder, 9...
...Cassette, 14, 15... Holder position detection switch, 16... Cassette detection switch.

Claims (1)

[Scope of Claim for Utility Model Registration] Auto play control that brings the cassette holder to the cassette playing position when a loading operation is performed, and then puts the tape drive mechanism into a playing state;
In a mode control device for a cassette tape recorder that performs auto-eject control to stop the tape drive mechanism and subsequently bring the cassette holder to a cassette loading/unloading position when the end of the tape is detected in the playback state, the mode control device After the cassette holder is brought to the cassette loading/unloading position by the auto-eject control, the device detects that the loading operation is performed without the cassette being ejected from the cassette holder. and bringing the cassette holder to the cassette playing position in response to the output of the first means;
A mode control device for a cassette tape recorder, characterized in that it further comprises second means for not bringing the tape drive mechanism into the playback state.