JP2563369B2 - Synchronous recording device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synchronous recording device that starts recording on a tape recorder or the like in synchronization with playback on a player or the like.

2. Description of the Related Art In recent years, a synchronous recording technique has been widely used in which the recording start of a tape recorder is synchronized with the reproduction start of a player or a compact disc.

An example of the above-described conventional synchronous recording device will be described below with reference to the drawings.

FIG. 4 shows an example of a conventional synchronous recording device. In FIG. 4, reference numeral 1 is a signal recording section composed of a tape recorder running system and an electromagnetic conversion system, and 2 is a signal reproducing section such as a player or a compact disc, which outputs a signal to be recorded to the signal recording section 1. . A recording control unit 3 controls the traveling system and electromagnetic conversion system of the signal recording unit 1 to a recording state or a stopped state. A reproduction control unit 4 controls reproduction / stop of the signal reproduction unit 2 and outputs a recording start signal to the recording control unit 3 when the reproduction of the signal reproduction unit 2 is started.

The operation of the synchronous recording device configured as described above will be described below.

By pressing a reproduction button of a player or the like, a reproduction start signal is output from the reproduction control unit 4 to the signal reproduction unit 2, and a reproduction signal is output from the signal reproduction unit 2 to the signal recording unit 1. On the other hand, the playback control unit 4 outputs a recording start signal to the recording control unit 3 at the same time, and the recording control unit 3 puts the signal recording unit 1 into a recording state. Therefore, the playback output of the signal playback unit 2 is recorded by the signal recording unit 1. The action to be performed can be performed with one touch.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above configuration, when the transition time from the stop of the signal reproduction unit to the reproduction is shorter than the transition time from the stop of the signal recording unit or the recording standby to the recording state, There is a problem that the reproduction start of the reproduction section becomes earlier than the recording start of the signal recording section, and as a result, the head portion of the recorded signal may be cut off as compared with the reproduction signal.

Actually, there is a transition time of about 1 second from the recording standby of the tape recorder to the recording state until the running becomes stable,
On the other hand, the transition time from the stopped state of the compact disc to the playback state is as long as the pickup access amount is small.
Since it takes about 0.3 seconds, the above-mentioned problem occurred.

In view of the above problems, the present invention provides a synchronous recording device having a simple structure and no head loss.

Means for Solving the Problems In order to solve the above problems, a synchronous recording device of the present invention includes a signal recording unit, a signal reproducing unit for reproducing a signal to be recorded in the signal recording unit, and a signal reproducing unit. A playback control unit that controls playback / stop, a recording control unit that controls recording / stopping of the signal recording unit by the output of the playback control unit, and the signal recording unit is stopped or from the recording standby state to the recording state. It is detected from the recording control unit that the signal recording unit is in the transition period, and the signal reproducing unit is put in a pause state during the transition period of the signal recording unit to the recording state, and the signal recording unit is in the complete recording state. And a transition period detection unit that outputs a signal for detecting the fact to release the pause state to the reproduction control unit.

Operation According to the present invention, when the signal recording unit is stopped or in the recording standby state, when the synchronous recording is started, the transition period detection unit causes the signal recording unit to stop during the transition period from the recording standby state to the recording state. It is detected from the recording control unit that the signal playback unit is put in a pause state during the transition period to the recording state of the signal recording unit, and it is detected that the signal recording unit is in a complete recording state and is in a pause state. Acts to release.

Example Hereinafter, a synchronous recording apparatus according to an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a main part of a synchronous recording apparatus according to an embodiment of the present invention. In FIG. 1, 1 is a signal recording unit, 2 is a signal reproducing unit, 3 is a recording control unit, and 4 is a reproduction control unit, and these are configured similarly to the conventional example of FIG. A transition period detection unit 5 detects a period during which the signal recording unit 1 is stopped or transitions from a recording standby state to a recording state depending on the state of the recording control unit 3, and during this period, the signal reproduction unit 2 is detected.
A pause signal is output to the reproduction control unit 4 so as to pause.

The operation of the synchronous recording device configured as described above will be described below. When the playback button of a player or the like is pressed, a recording start signal is output from the playback control unit 4 to the recording control unit 3 to put the signal recording unit 1 into the recording state, but a transition period is required until the signal is completely recorded. The detection unit 5 detects that it is the transition period, and outputs a pause signal to the reproduction control unit 4. Therefore, originally, when the reproduction button is pressed, the reproduction start signal should be output from the reproduction control unit 4 to the signal reproduction unit 2. However, at the same time, the transition detection unit 5 inputs the pause signal, so that the signal reproduction unit is input. 2 pauses and waits. After that, when the signal recording unit 1 becomes completely in the recording state and the transition period ends, the transition period detection unit 5 does not output the pause signal, so the reproduction control unit 4 outputs the reproduction start signal to the signal reproduction unit 2 and outputs the signal. The reproduction unit 2 starts reproduction, outputs a reproduction signal to the signal recording unit 1, and recording starts. FIG. 2 is an explanatory diagram showing the above operation on the time axis. The operation of A in FIG. 2 is a diagram for explaining the operation of the conventional example of FIG.
When the play button is pressed, the recording operation of the signal recording section and the reproduction operation of the signal reproducing section are started at the same time, and the time until the completion of the transition to the reproduction operation of the signal reproducing section is the completion of the transition to the recording operation of the signal recording section. Therefore, the signal reproduction unit output rises in the transition period of the signal recording unit operation a as shown by c, and only the x part of the reproduction signal of the signal d actually recorded in the signal recording unit is reproduced. It shows that the head part is not recorded. on the other hand,
The operation of B in FIG. 2 is a diagram for explaining the operation of the present invention in FIG. The signal is temporarily stopped, and then the signal reproducing unit continues to be stopped until the transition to the recording operation of the signal recording unit is completed. Since the signal reproducing section starts the reproducing operation after the signal recording section is completely in the recording state, the signal reproducing section output f can be recorded completely from the head by the signal recording section.

FIG. 3 shows an example of the main part of the flow of processing when the processing of the operation of the present invention in FIG. 1 is performed using a microcomputer. In the processing of the reproduction control unit in FIG. 3, when the reproduction button is pressed, a recording start signal is output, the signal reproduction unit plays a part, and the signal is temporarily stopped for 10 mS. During this period, if there is a signal indicating that the transition is in progress from the transition period detection unit 5 which will be described later, the pause is continued during the transition and the reproducing operation is started after the completion of the transition. If the signal recording unit is not in the recording standby state, there is no signal being transferred, and the reproduction operation is immediately started. On the other hand, the processing of the recording control unit waits for a recording start signal from the reproduction control unit if the recording is in a standby state, and outputs a reproduction pause signal to the reproduction control unit when the signal is input. Performs recording operation transition processing. When the shift is completed, the playback pause signal is turned off, and the process ends. In this process, the reproduction pause signal ON / OFF process part corresponds to the transition period detection part.

As described above, the present invention is provided with the transition period detection unit that detects the transition period during the transition of the recording operation of the signal recording unit of the synchronous recording device, and the signal recording unit is stopped or the recording standby state is changed to the recording state. The recording control unit detects that it is a transition period, and the signal playback unit is put in a pause state during the transition period to the recording state of the signal recording unit, and it detects that the signal recording unit is in a complete recording state. Since the paused state is released, it is possible to perform high-quality synchronous recording in which the head portion of the reproduction signal is not interrupted during the synchronous recording.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main part of a synchronous recording apparatus according to an embodiment of the present invention, FIG. 2 is a signal waveform diagram showing the operation of the present invention and a conventional synchronous recording apparatus, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a flowchart showing the main part of the processing of the operation of FIG. 4, and FIG. 4 is a block diagram showing the main part of the conventional synchronous recording apparatus. 1 ... Signal recording unit, 2 ... Signal reproducing unit, 3 ... Recording control unit, 4 ... Reproduction control unit, 5 ... Transition period detection unit.

Claims (1)

(57) [Claims] 1. A signal recording section, a signal reproducing section for reproducing a signal to be recorded in the signal recording section, a reproduction control section for controlling reproduction / stop of the signal reproducing section, and an output of the reproduction control section. Recording of the signal recording section
A recording control unit that controls stop and the like, and the recording control unit detects that the signal recording unit is in a transition period from a stop or recording standby state to a recording state,
The signal reproducing unit is put into a pause state during the transition to the recording state of the signal recording unit, and the signal for releasing the pause state is detected when the signal recording unit is in the complete recording state and the reproduction is performed. A synchronous recording device comprising: a transition period detection unit for outputting to a control unit.