JPS6220908Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a commander for remotely controlling a tape recorder such as a video or audio tape recorder, and is particularly designed to prevent the recording mode from being canceled by mistake during the recording mode.

Conventionally, as a mechanism for preventing cancellation of the recording mode in this type of commander, when the recording mode is set by pressing the recording key 1 as shown in FIG. It is known that the keyboard surface 4 of the commander body 3 is covered with a movable safety cursor 5. The cursor 5 is slidable by engaging its legs 7 in guide grooves 6 formed on both sides of the commander 3. However, with this configuration, if you forget to move the safety cursor 5 so that it covers the stop key 2, there is a risk that you may accidentally press the stop key 2 and cancel the recording mode. .

In addition, even if you operate the safety cursor 5 reliably, the recording mode will also be activated if you accidentally touch the power switch key on the device that cannot be covered by the safety cursor 5 and turn the power switch OFF. There was a fear that this would result in the release of the information, and that a reliable recording state would no longer be obtained.

The present invention was devised in view of the above-mentioned conventional circumstances, and avoids the complexity of the configuration and the complexity of operation caused by mechanical devices such as the conventional safety cursor, and has a simple configuration. The purpose is to reliably prevent the recording mode from being canceled inadvertently with a simple operation.

Furthermore, as in the conventional example, the present invention is capable of handling keys that cannot be structurally covered by the safety cursor provided on the commander, such as the power switch key of the main body of the recording/reproducing device installed separately from the commander. It is an object of the present invention to provide a recording mode release prevention device that can also deal with the above problems.

In other words, the commander of the present invention has a protection means consisting of a protection circuit or a protection switch that is activated in conjunction with the recording mode selection key in a commander capable of switching ON/OFF the recording mode of the recording/reproducing device. However, this protection means is characterized in that the operation key for setting the recording release mode is set to an inoperable state.

Hereinafter, embodiments of the present invention shown in the drawings will be described.

The example shown in Figure 2 is the commander's stop key 2.
A safety switch 22 is provided in series with the power switch key 21 and the safety switch 22.
Each contact 23, 24 of 2 is a recording mode selection key 25.
It is arranged so that it is switched to the OFF state in conjunction with the operation of the switch. In such a configuration, when the recording mode selection key 25 is pressed and the selection key 25 is in a recording mode such as recording or sound recording, the selection key 2
5, each contact 23, 2 of the safety switch 22
4 is in the OFF state, so even if you press the stop key 20 or the power switch key 21 by mistake and turn it into the ON state, each of these keys 20, 21 will be in the OFF state.
is forcibly disabled by the safety switch 22, so the recording mode state will not be released.

The above example is an example of a mechanical configuration, but
Furthermore, as shown in FIG. 3, it is also possible to cancel the recording mode only when the stop key 20 and another key 25 are pressed twice.

That is, a safety switch 22 is connected in series to the stop key 20 and the other existing key 25'.
The contacts 23 and 24 of this safety switch 22 constitute a switch that is turned off when the recording mode selection key 25 is turned on. Furthermore, the outputs of the stop key 20 and other existing keys 25' are led to an AND circuit 26.

Therefore, in the recording mode state, that is, when the recording mode selection key 25 is turned ON and the contacts 23 and 24 of the safety switch 22 are OFF, the recording mode will not be canceled even if the stop key 20 is pressed and turned ON. .

In this case, to release the recording mode, only when the stop key 20 and another existing key 25' are operated simultaneously will the AND circuit 26 generate a release signal, and the recording mode will be released.

In the example shown in FIG. 4, switch 2 is turned on to the contact 26a side by the recording mode selection key
6 is connected in series with the stop key 20, and when the recording mode selection key 25 is turned on, that is, when the stop key 20 is pressed twice during the recording mode, the output signal of the monomulti 27 causes the gate 2 to be turned on.
8 is opened, the counter 30 counts two pulses from the monomulti 29, and the recording mode can be canceled by the output signal.

Therefore, when the stop key 25 is pressed only once, no output signal is obtained from the counter 30, and the recording mode is not canceled.

As described above, in the present invention, when the recording mode selection key is operated, the protection means constituted by the switch 22 or 26 is switched to the OFF state, and the stop key or other means for canceling the recording mode is switched to the OFF state. keys are forcibly disabled. Therefore, it is possible to sufficiently avoid recording failures caused by accidentally touching the recording release key during recording, etc., and to fully achieve the intended purpose.

In particular, unlike the conventional method that relies on the safety cursor, there is no need for special operations such as moving the safety cursor in addition to the operation of the recording mode selection key, and it can be done simply by operating the recording mode selection key. Since the recording mode is prevented from being released, a highly reliable recording state can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing a conventional example. Second
4 through 4 are essential block diagrams showing different embodiments of the present invention. 20...stop key, 21...power switch, 22, 26...protection switch, 25...recording mode selection key.

Claims (1)

[Scope of utility model registration request] A commander capable of switching ON/OFF the recording mode of a recording/playback device has a protection means consisting of a protection circuit or a protection switch that is activated in conjunction with the recording mode selection key, and this protection means can be used to cancel recording. A commander characterized in that an operation key set as a mode is set to an inactive state.