JPS5939349Y2 - tape recorder - Google Patents

Description

[Detailed explanation of the invention] This invention consists of a counter that detects the non-signal area between songs on the tape when it is running at high speed and counts the number of detected output pulses, and a music number designation switch. A tape recorder comprising a memory circuit for storing a track number in advance, a track number display circuit for displaying the memory state thereof, and a transition from a tape high-speed running state to a tape playback state based on a coincident output of the counter and the memory circuit. Even when the recorder is in a stopped state, if a power switch is closed and a music selection switch is closed, an arbitrarily designated music number can be stored in a memory circuit.

Hereinafter, the inventive ear recorder shown in the drawings will be explained.

1, when the tape runs at high speed (・), it contacts tape 2,
a magnetic head 3 for detecting the presence or absence of a signal on the tape 2;
4 is an amplifier, 4 is a detector for detecting a non-signal portion between songs on the tape 2, and 5 is an input of the inter-song signal pulse P generated when the detector 4 detects a non-signal portion, and the number of input pulses. A counter that sequentially outputs output signals to, for example, five output terminals ■→■ corresponding to the above, and 6 is a track number display for displaying music selection connected to each of the output terminals ■ to ■ of the counter 5 through diodes D1 to D5, respectively. The circuit 7&'J is a memory circuit which is equipped with a plurality of song number designation switches, and stores the music number designated by the song number designation switch, and has five output terminals ■~corresponding to the output terminals ■~■ of the counter 5. ■It is equipped with.

The output terminals ■ to ■ of this memory circuit 7 are connected to the song number display circuit 6 through diodes Iy1 to Iy5, respectively, and the state in which a specified song number is stored is displayed on the corresponding display element of the song number display circuit 6. Display.

Each output terminal ■ to ■ of the memory circuit 7 and each output terminal ■ to ■ of the counter 5 are led to a logic circuit 8 in order to determine whether the corresponding output terminals match outputs, and this logic circuit 8
The plunger drive circuit 9 is controlled by the output.

A power supply ON/OFF switch 11 and a music selection switch 12 are connected in series to the power supply bus 10, and a playback switch 13 that is closed when the playback button is operated is also connected in series. When both 12 and 13 are closed, power is supplied to the amplifier 3 and the detector 4, and the counter 5, the memory circuit 7, and the track number display circuit 6 are supplied with power.
The power supply line 14 may be connected to a midpoint between the music selection switch 12 and one terminal of the reproduction switch 13.

A power supply line 15 to the plunger drive circuit 9 connects to the playback switch 1 through a fast-forward switch 16 or a rewind switch 17 that closes when a fast-forward or rewind button is operated.
It is connected to the other terminal of 3.

A plunger (not shown) driven by the plunger drive circuit 9 acts to release the fast forward button or the rewind button.

A reproduction signal processing circuit 18 amplifies the reproduction signal from the magnetic head 1 and outputs it from the speaker 19 during normal reproduction, and is supplied with power through the power switch 11.

Since the tape recorder of the present invention is constructed as described above, if the power switch 11 is closed and the music selection switch 12 is closed when the playback button, fast forward button, and rewind button are not operated and the button is stopped. , power is applied from the power bus 10 to the storage circuit 7 and the track number display circuit 6 through the power supply line 14.

Therefore, in this stopped state, an arbitrary song number can be specified in the memory circuit 7, and the specified song number can be displayed on the corresponding display element of the song number display circuit 6.

Then, when the playback button is operated and the fast forward or rewind button is operated, the playback switch 13 and the fast forward switch 16 or the rewind switch 17 are closed, and power is supplied to the amplifier 3, detector 4, and plunger drive circuit 9. is applied, the presence or absence of a signal on the tape 2 can be detected by the detector 4 by fast-forwarding or rewinding the tape.

This detector 4 detects the no-signal portion between songs, and the detection pulse P is applied to the counter 5, so that output signals appear sequentially at the output terminals ■→■ of the counter 5 corresponding to the number of pulses. The plunger drive circuit 9 is operated by determining, in the logic circuit 8, an AND condition between the output of the output terminal (2) corresponding to the song number (for example, the third song) stored in the memory circuit 7 and the output of the counter 5. I can do it.

The drive circuit 9 operates the plunger at the track number designated by the storage circuit 7 (for example, the third track), and switches the tape recorder from the fast forward state (or rewind state) to the playback state.

The skipping song selection operation can be performed as described above, but if the song selection function is not required, the song selection switch 12 may be opened, and at this time the detector 4, counter 5, and song number display circuit 6. It is possible to prevent current consumption by cutting off the power supply to the automatic music selection circuit composed of the memory circuit 7 and the like, and at the same time, it is possible to obtain a normal reproduction state through the reproduction signal processing circuit 18.

As mentioned above, in the tape recorder of the present invention, the song number designation necessary for performing the skipping song selection operation can be performed when the tape recorder is stopped, so the tape recorder is once placed in the playback mode to designate the song number. It is convenient because the designated song number to be arbitrarily selected can be easily stored in the memory circuit at any time.

[Brief explanation of drawings]

The figure is a schematic circuit diagram of the tape recorder of the present invention. 0 1...Magnetic head, 4...Detector, 5
...Counter, 6...Track number display circuit,
7... Memory circuit, 11... Power switch, 12... Song selection switch.

Claims (1)

[Scope of utility model registration request] A counter that detects a non-signal area between songs on the tape when the tape is running at high speed and counts the number of detected output pulses, and a memory circuit that stores a specified song number in advance by using a song number designation switch. , a tape recorder having a track number display circuit for displaying its storage state, and a tape recorder that switches from a high-speed tape running state to a tape playback state by matching outputs of the counter and the storage circuit; The tape is characterized in that power is supplied by simply closing a song selection switch inserted into the power supply circuit, and a specified song number can be stored in the memory circuit even when the tape is stopped. recorder.