JPS61289591A - Tape recorder - Google Patents

Abstract

PURPOSE:To prevent erroneous operation by providing a memory means, inputting the output of an address designating means and a signal detecting means and controlling a displaying means. CONSTITUTION:When an address designating switch 3 is turned ON-OFF, the address stored at the second memory means through steps 1-3 is counted one by one and the contents are displayed by a displaying means 6. When the contents of the second memory means are equal to the contents of the fourth memory means, by steps 2 and 4, the contents of the second memory means are rewritten to '1', '1' is displayed at the displaying means 6, and continuously, an address designating switch 3 is turned ON-OFF, the count-up is started from '1'. When the contents of the second memory means are equal to the contents of the fourth memory means, a series of actions that '1' id displayed again is repeated. Thus, the regeneration of the erroneous operation can be prevented and the heading function of the tape recorder can be made secure, and the operation can be made efficient.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tape recorder having a cue function by specifying an absolute address from the beginning of the tape.

2. Description of the Related Art In recent years, with the development of karaoke machines, various cueing functions have been proposed by specifying an absolute address from the beginning of the tape. If you try to specify a number larger than the address number recorded on the tape (for example, specifying the 6th track on a tape with 4 tracks on one side), after passing the final program, a long no-signal section is detected or the tape When the end of winding was reached, all memory contents, such as the current address, etc., were erased, and the mode of the mechanism was also forcibly stopped, to prevent malfunctions in subsequent operations.

Problems to be Solved by the Invention However, with the above measures, all memory contents will be erased, so the operation to memorize the absolute address of the current location,
That is, it is necessary to rewind the tape to the beginning and then sequentially count the programs again, resulting in a large loss of time and an inefficient operation.

The present invention solves these conventional problems, and even when cueing is performed by specifying a number larger than the number of addresses recorded on the tape, all stored contents up to that point are erased. To provide a tape recorder which can improve operability and perform efficient cueing while taking care not to perform the same erroneous operation once the erroneous operation has been performed.

Means for Solving the Problems The tape recorder of the present invention includes a storage means for storing the current address, the running state of the non-signal portion after the last program, the address displayed on the display means, and the maximum address on one side of the tape. ,
It is constructed so that the outputs of the address designating means and the signal detecting means are inputted to control the display means.

Function: The tape recorder of the present invention stores the maximum address on one side of the tape in the fourth storage means in addition to the outputs of the signal detection means and the rotation detection means, and counts up the number of displays on the display means by the address designation means. When the address is stored in the second storage means, the numerical value in the second storage means is compared with the numerical value in the fourth storage means, and if they are equal, the display is reset to the initial stage, and then the count is increased. It is possible to prevent an erroneous operation in which an address greater than the maximum address on one side is specified and the cue is performed.

Embodiment Hereinafter, a tape recorder according to an embodiment of the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.
is a magnetic signal reproducing means including a magnetic signal reproducing head and a first stage amplifier; 2 is a signal detecting means for determining the presence or absence of an output from the magnetic signal reproducing means 1 and outputting it as a digital signal; 3 is designating an address at which the cue is to be searched. address designation switch,
4 is a mechanism, 6 is a rotation detection means for detecting the rotation of the reel stand of the mechanism 4, and 6 is an address designation switch 3.
Display means for displaying the address specified by or the current address; 7 is a microcomputer as a control means; the signal detection means 29 address designation switch 32 inputs the change detection means 6, and stores the address of the current position. a first storage means for storing the display address of the display means 6; a third storage means for storing the fact that the tape is running in a no-signal portion after the final program on the tape; , comprising a fourth storage means for storing the maximum address on one side of the tape,
Display means 6. It is configured to control the operation of the mechanism 4.

FIG. 2 is a flowchart showing the processing contents of the microcomputer 7.

The operation of the tape recorder of this embodiment will be explained using the flowchart shown in FIG.

First, select an address greater than or equal to the maximum address on one side using the address designation switch 3.
When the no-signal portion after the final program on one side is being run in fast forward mode due to an erroneous operation such as cueing by specifying , the third storage means of the microcomputer 7 stores this information. This state remains for a certain period of time (5 in fast forward mode)
If the process continues for more than 1 second), the process goes through steps 5 to 8 and reaches step 9, where it is determined that there is no signal beyond that, and the mechanism 4 changes from the fast-forward state to the rewind state. In this state, when the end of the final program is detected by the signal detection means 2 via the magnetic signal reproduction means 1, steps 5 and 13.1
4, the program reaches step 16, runs for t seconds, and after reaching the middle of the final program, the mechanism 4 enters the fast forward state again. When the end of the final program is detected by the signal detection means 2 in this state, steps 5, 8, 10.11
The microcomputer 7 operates to bring the mechanism 4 into a stopped state, and in step 12, the current address stored in the first storage means is stored as the maximum address in the fourth storage means. Further, when the change in the output of the rotation detecting means 5 stops and the end of the tape is detected while traveling in the above-mentioned no-signal area, the maximum address is stored in the fourth storage means through the same process as steps 16 to 18. be remembered.

In this state, when the address designation switch 3 is turned ON-OFF, the addresses stored in the second storage means are counted up one by one through steps 1 to 3, and the contents are displayed on the display means 6. However, when the contents of the second storage means are equal to the contents of the fourth storage means, steps 2 and 4 are executed.
The contents of the second storage means are rewritten to "1",
"1" is displayed on the display means 6, and when the address designation switch 3 is turned ON-OFF, the count starts from "1" and the contents of the second storage means change to the contents of the fourth storage means as described above. The series of operations of displaying rlJ again when it becomes equal to is repeated.

Effects of the Invention As described above, according to the present invention, the present invention includes a signal detection means, a rotation detection means, and a third storage means for storing that the tape is running in a non-signal area after the final program on one side of the tape. This makes it possible to stop the mechanism at the end of the final program on one side, and to store the address of the current position in the fourth storage means as the maximum address on one side. Second
When counting up the contents of the storage means, if the contents are equal to the contents of the fourth storage means, the contents of the second storage means are returned to the initial state. This makes it possible to prevent addresses higher than that address from being specified again, and prevents the recurrence of the erroneous operation of specifying an address higher than the maximum address on one side to search for the beginning. It is possible to ensure the reliability and improve operational efficiency.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the tape recorder of the present invention, and FIG. 2 is a timing chart showing the processing contents of a microcomputer used in the tape recorder. 1... Magnetic reproduction means, 2... Signal detection means, 3... Address designation switch, 4...
・Mechanism, 5...Rotation detection means, 6...
...Display means, 7...Microcomputer. Name of agent: Patent attorney Toshio Nakao and 1 other person/-
--Shiba Kiyogo folding + stage 2-11 signal Uyusho, pre-installed 3-1~1 Togahi 4sho λL switch ± 4-11 mechanism

Claims (1)

[Claims] A signal detecting means for outputting a digital signal in response to the presence or absence of a magnetic reproduction signal, a rotation detecting means for detecting the rotation of the reel stand of the mechanism and detecting the beginning and end of the tape, and a means for trying to cue the tape. An address specifying means for specifying the address of a song, an address display means for displaying the specified address or the address of the current position, and signals from the signal detecting means, rotation detecting means, and address specifying means as input. , a first storage means for storing the address of the current position, a second storage means for storing the display address of the display means, and a memory for storing the fact that the vehicle is running in a no-signal portion after the final program on the tape. and a fourth memory means for storing the address of the current position as the maximum address when the signal-free running state continues for a certain period of time or more or when the end of tape winding is reached in that state. The control means counts up the address stored in the second storage means every time the song number designation means is closed, until the number of addresses becomes equal to the address stored in the third storage means. A tape recorder characterized in that the tape recorder is configured to perform an initial reset at a point in time, and then count up.