JPS63213142A - Tape recorder - Google Patents

Abstract

PURPOSE:To record without leaving any erasing from the start end of a tape by performing erasing by rewinding the tape by specific amt. on detection of the tape startend. CONSTITUTION:In the case of starting a recording after reaching up to the startend with a tape recorder user performing rewinding operation, the reach up to the startend after rewinding is stored in a memory means. And when a recording is started, the tape amt. possible to cause the erasing left unfinished of the signal stored previously is rewound by a forced erasing means 6 according to the storage contents of the memory means 5 to wind the rewound tape amt. by erasing mode. No erasing left unfinished is therefore caused. A recording can thus be effected without leaving any erasing from the startend of a tape.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tape recorder that records and reproduces signals on a tape using a rotating head, and particularly relates to recording from the beginning of the tape.

2. Description of the Related Art In recent years, tape recorders have been proposed which convert audio signals into PCM data and record the data on tape using a rotating head. Some tape recorders using this type of rotary head are constructed so that when a rewinding operation is performed, a predetermined amount of tape is wound up after reaching the starting end, and tape running is stopped.

Problems to be Solved by the Invention However, in such a tape recorder, when a tape that has been recorded from the starting edge is rewound and then recorded again from the starting edge, variations in the tape position after the rewinding operation and variations in the stop position of the rotary head occur. For this reason, a part of the previously recorded signal may not be erased, and a new signal may be subsequently recorded. Therefore, if this tape is played back from the beginning, the previously recorded signal will be played for a short time and then the newly recorded signal will be played back, causing the previously recorded signal to become an abnormal sound. There was a problem with hearing.

As mentioned above, when a tape recorder user rewinds and starts recording after detecting the starting edge, the purpose is to erase the previously recorded signal and record a new signal. It was difficult to erase previously recorded signals.

The present invention has been made in view of the above problem, and when recording is started after rewinding to the beginning, even if a signal has been recorded first, recording is started after completely erasing that signal. The purpose of this invention is to provide a tape recorder that can.

Means for Solving the Problems In order to solve the above problems, the tape recorder of the present invention includes a storage means for storing the fact that the beginning of the tape has been detected during the rewind mode, and when the recording switch is pressed. If the storage contents of the storage means are in a state in which the beginning of the tape has been detected, forced erasing means is provided which rewinds the tape by a predetermined amount and then winds the tape by a predetermined amount in an erasing mode.

According to the above-described structure, when the tape recorder user performs a rewinding operation and starts recording after reaching the start end, the storage means stores that the start end has been reached after rewinding, and the recording continues. When the erase mode is started, the forced erase means rewinds the amount of tape that may cause previously recorded signals to remain unerased, depending on the memory contents of the storage means, and then rewinds the amount of tape that has been rewound in erase mode. Since it is rolled up, there will be no unerased area.

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

FIG. 1 is a block diagram of essential parts showing an embodiment of the tape recorder of the present invention. In FIG. 1, 1 is a deck section having at least a rewind mode, a recording standby mode, a recording mode, and an erase mode; 2 is a starting edge detection section for detecting the starting edge of the tape loaded on the deck section 1; 3
4 is an operation switch that includes a rewind switch 301 for putting the deck 1 in rewind mode and a recording switch 302 for putting it in recording standby mode or recording mode; 6 is a deck control section for controlling the section 1; 6 is a storage means for storing whether or not the tape has been rewound and reached the start end based on the output signals of the operation switch section 3 and the start end detection section 2;
When the recording switch 302 is pressed after the tape has been rewound to the starting end by the output signals of the storage means 6 and the operation switch 3, the tape is rewound by a predetermined amount and the deck unit 1 is forced into the erase mode, and the tape is rewinded. This forced erasing means outputs an output signal to the deck control section 4 to set the deck to recording standby mode or recording mode after winding a predetermined amount. As an erasing method, there is a method of isometrically erasing a previously recorded signal by overlappingly recording a signal corresponding to a no-signal level, for example. In this embodiment, the deck control section 4, storage means 59, and forced erasing means 6 are realized by a microcomputer 7.

The operation of this embodiment will be described below based on a flowchart showing a part of the processing operation of the microcomputer 7 shown in FIG. In FIG. 2, A at 20 and B at 36 are connectors, which are connected in the middle of the entire flowchart (not shown) by this microcomputer. First, in judgment step 21, the state of the operation switch section 3 is judged, and if any switch of the operation switch section 3 is pressed, the flow goes to judgment step 22, and judgment step 2
2, the pressed switch is the rewind switch 30
1 is pressed, and the rewind switch 301 is pressed.
If is pressed, deck part 1 is pressed in processing step 23.
is put into rewind mode, and decision step 24 is reached. In judgment step 24, when the starting edge detecting section 2 detects the starting edge, the deck section 1 continues the rewinding mode, and when the starting edge detecting section 2 detects the starting edge of the tape, the process proceeds to processing step 25, where The deck control section 4 cancels the rewinding mode, controls the deck section 1 to stop running after feeding a predetermined amount of tape including the leader tape section in the reproduction direction, and the process proceeds to step 26. In processing step 26, "1" is stored in the storage means 5, which is a part of the memory section of the microcomputer 7, to indicate that the user has rewound the tape to the beginning, and the tape reaches the connector B35. In judgment step 22, if a switch other than the rewind switch 301 is pressed, the flow goes to judgment step 27, and in judgment step 27, it is determined whether or not the recording switch 302 has been pressed, and if the recording switch 302 has been pressed. flows to decision step 28. Judgment step.

In step 28, if the memory content of the storage means 5 is '1'', the flow goes to processing step 29, and in processing step 29, if recording is started after entering the immediate recording standby mode, or if recording is started, if the recording mode is set, the process proceeds to processing step 29. In step 30, the deck unit 1 is forced into the erase mode,
After winding up the amount of tape rewound in processing step 29, '0'' is stored in the storage means 5 in processing step 31, and the flow proceeds to processing step 32. Also, judgment step 2
In step 8, if the stored content is not °11'', that is, if the recording switch 302 is pressed in the middle of the tape, the flow goes to processing step 32.In processing step 32,
The deck control section 4 controls the deck section 1 to be in the recording standby mode or the recording mode, and reaches the connector B35. In judgment step 27, if a switch other than the recording switch 302 is pressed, the process proceeds to judgment step 33.

In judgment step 33, if a switch that does not allow the tape to run, such as a stop switch or a pause switch, is pressed, the memory contents of the storage means 5 are transferred to the connector B35 without changing them, and the fast forward switch or playback switch is pressed. If the switch for running the tape is pressed as shown in FIG. Processing step 29 and processing step 3o are operations of the forced erasing means 6, and processing step 26. Processing step 31 and processing step 34 are operations of the storage means 6.

As described above, according to this embodiment, when the tape recorder user performs a rewind operation and starts recording after reaching the start end, the storage means 6 stores the fact that the start end has been reached after rewinding. When recording is started, the compulsory erasing means 6 rewinds the amount of tape in which previously recorded signals may remain unerased, depending on the memory contents of the storage means 6, and rewinds the tape in erasing mode. Since the returned amount of tape is wound up, there will be no unerased area.

In this embodiment, a tape recorder that converts an audio signal to PCM data and records it on a tape using a rotating head is explained as an example, but it goes without saying that the present invention can be applied to a video tape recorder that records a video signal on a tape using a rotating head. stomach.

Effects of the Invention As described above, the present invention includes a deck section capable of recording signals on a tape by a rotating head, a deck control section that controls the deck section including rewinding mode, recording standby mode, or recording mode. A start end detection section that detects the start end of the tape, a rewind switch that puts the deck section into rewind mode, and when the start end is reached during the rewind mode, winds a first predetermined amount of tape, and a deck section that is put into recording standby mode. or an operation switch section including a recording switch for setting the recording mode, a storage means for storing that the beginning of the tape has been detected during the rewind mode, and a memory content of the storage means when the recording switch is pressed. By providing a forced erasing means that rewinds the tape by a second predetermined amount and then winds the second predetermined amount of tape in the erase mode when the tape start end is detected, the tape recorder user can unwind the tape. When recording is started after the rewind operation has been performed and the start end has been reached, the storage means remembers that the start end has been reached after rewinding, and when recording is started, the forced erasing means However, since it rewinds the amount of tape that may cause unerased signals that were previously recorded, and rewinds the amount of tape that was rewound in erase mode, it has the excellent effect of not causing unerased signals. It is something that you have.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the main parts of an embodiment of the present invention, and FIG. 2 is a flowchart of the main parts showing the control procedure of the microcomputer of this embodiment. 1...Deck part, 2...Start detection part,
3... Operation switch section, 31... Rewind switch, 32... Recording switch, 4...
. . . deck control unit, 5 . . . first means, 6.
... Forced erasing means, 7... Microcomputer. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (1)

[Claims] A deck section capable of recording signals on a tape by a rotating head, a deck control section that controls the deck section including a rewind mode and a recording standby mode, a start end detection section that detects the start end of the tape, and a deck section. an operation switch section including a rewind switch for setting the tape to a rewinding mode and winding up a first predetermined amount of tape when the start end is reached during the rewinding mode; and a recording switch for setting the deck section to a recording standby mode or a recording mode; and a storage means for storing that the beginning of the tape was detected during the rewind mode, and a storage means for storing the fact that the beginning of the tape was detected when the recording switch is pressed, and if the stored contents of the storage means are in a state in which the beginning of the tape has been detected, the tape is moved to the second position. A tape recorder comprising forced erasing means for rewinding a predetermined amount of tape and then winding a second predetermined amount of tape in an erasing mode.