JPH0445331Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a camera-integrated videotape recorder (hereinafter referred to as a movie) having means for confirming recording standby and recording operation states.

[Conventional technology]

FIG. 4 is a perspective view showing an example of a conventional movie. In the figure, 1 is a movie main body, 2 is a selection switch between movie recording and recording standby, 3 is a viewfinder, 9 is a microphone, and 10 is a lens.

FIG. 5 shows an example of the display section 5 that can be seen when looking through the viewfinder 3. 6 is a screen on which the subject to be photographed is displayed, and 7 is a light-emitting display that indicates that a movie is being recorded. , light emitting diodes, etc. are used. 8 is a light emitting body such as a light emitting diode.

Next, the operation will be explained. In Figure 4,
Turn on the power switch (not shown) to activate the electronic circuit built into the movie main body 1.
Then, the user points the lens 10 of the movie main body 1 toward the subject, looks through the viewfinder 3, and adjusts the camera so that it is in a recording standby state and in an appropriate imaging state.

When the subject is in the desired state to be photographed, the selection switch 2 is pressed and the subject image and the sound from the microphone 9 are recorded on the tape in a recording state. Next time you want to temporarily stop shooting, press the selection switch 2 again.
is pressed to enter a recording standby state. At this time, whether the recording standby state or recording is in progress is indicated by whether the light emitting display 7 emits light or is turned off.

[Problem that the invention attempts to solve]

Since conventional movies are configured as described above, it is necessary to visually check the light emitting display 7 to confirm whether the operation status is recording or in recording standby. I had a problem where I had to take my eyes off the subject on screen 6 for a moment. In addition to the light-emitting display body 7, the display unit 5 also includes:
Since there is a light-emitting body 8 that indicates an emergency situation or a warning, there is also the problem that checking the light-emitting display body 7 is quite troublesome.

This invention was made in order to solve the above problems, and the purpose is to obtain a movie that does not require taking your eyes off the subject on the screen and has a confirmation means that allows you to easily confirm the operation status of the movie. shall be.

[Means to solve the problem]

The movie according to this invention includes a selection switch that selects between recording and recording standby, and a control signal that receives a selection signal from the selection switch and outputs a sound generation command signal during either recording or recording standby. This camera-integrated video tape recorder is equipped with a sounding body that emits a sound in response to the sound generation command signal, and the sounding body is attached to a position near the ear when looking through the viewfinder. Preferably, in the above configuration, the audio signal processing circuit that records the input signal from the microphone is provided with a filter that attenuates only the frequency component of the sound emitted by the sounding body.

[Effect]

In the movie according to this invention, the operation status of the movie can be known by the sound emitted by the sounding body.

〔Example〕

Hereinafter, embodiments of this invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes a movie main body, 2 a selection switch between movie recording and recording standby, and 3 a view indexer, which is provided protruding from one side of the movie main body 1. Reference numeral 4 denotes a piezoelectric buzzer that emits a sound of a specific frequency. This is installed at a position on the movie main body 1 that is near your ear when you look into the viewfinder 3, and the sound emitted by this piezoelectric buzzer 4 is It can now be heard from the outside.

FIG. 2 shows a block diagram of the internal circuitry of the movie. In the figure, 11 is a system control circuit, which receives a selection signal a from the selection switch 2 (Fig. 1).
is received at its input terminal 2a, and based on this selection signal a, a mode switching signal b and a sound generation command signal c are generated.
is output to control the tape drive motor 12 and piezoelectric buzzer 4, respectively.

13 is an audio signal processing circuit, and a microphone 9
(FIG. 1) is received at the input terminal 9a, subjected to signal processing, and then guided to the magnetic head 14.
15 is a video signal processing circuit, and video signal input terminal 1
The video signal inputted from 6 is processed and inputted to recording amplifier 17. 18 is a magnetic head for recording the output signal of the recording amplifier 17 on a tape, and d is a control signal input from the system control circuit 11 to the audio signal processing circuit 13, the video signal processing circuit 15, and the recording amplifier 17.

A, B, and C in FIG. 3 indicate the selection signal a, mode switching signal b, and sound generation command signal c, respectively.

In FIG. 1, when the selection switch 2 is pressed while the movie is in recording standby, the selection signal a shown in FIG. 3A is output from the selection switch 2, the movie enters the recording state, and the system control shown in FIG. The circuit 11 applies a mode switching signal b shown in FIG. 3B to the motor 12 to run the tape, and applies a sound generation command signal c shown in FIG. 3C to the piezoelectric buzzer 4 shown in FIG. 2, The piezoelectric buzzer 4 is activated to notify the operator that the movie is being recorded.
Furthermore, the control signal d is input to the audio signal processing circuit 13, the video signal processing circuit 15, and the recording amplifier 17, and the magnetic head 14 records the sound from the microphone 9, and the magnetic head 18 records the video onto the tape.

Next, when you press selection switch 2 in Fig. 1, the second
The mode switching signal b output from the system control circuit 11 shown in the figure changes to the standby state, and the sound generation command signal c
Then, the control signal d is stopped, the motor 12 is stopped, the tape is stopped, and the sound of the piezoelectric buzzer 4 is also stopped, notifying the operator that the movie is in a recording standby state.

Therefore, the operator can know whether the movie is in the recording standby state or in the recording state without taking his eyes off the subject displayed on the screen 6 in FIG. 5 at all. These conditions can be confirmed by simply listening to the sound of the piezoelectric buzzer 4, so there is no need for confirmation.

In this embodiment, a piezoelectric buzzer 4 is attached to the same side of the movie main body 1 as the viewfinder 3, at a position that is close to the ear when the viewer looks at the viewfinder 3. Therefore, when the viewer's eyes come into contact with the viewfinder 3 of the movie main body 1, the piezoelectric buzzer 4 is located close to the ear, and the movie operator can reliably hear the sound emitted by the piezoelectric buzzer 4, as well as the sound emitted by the piezoelectric buzzer 4. Since the sound can be reduced, it is easy to prevent the sound of the piezoelectric buzzer 4 from entering the microphone 9. It is suitable that the microphone 9 has high directivity so that only sound from the direction of the subject enters the microphone 9.

Note that by providing a filter that attenuates only the frequency component of the sound of the piezoelectric buzzer 4 in the audio signal processing circuit 13 of the movie main body 1, even if the sound emitted by the piezoelectric buzzer 4 enters the microphone 9, the sound will be The volume of the piezoelectric buzzer 4 can also be adjusted arbitrarily by not recording it on the tape of the movie main body 1.

Note that the piezoelectric buzzer 4 can also be made to sound when the movie is not in the recording state but in the recording standby state. In this embodiment, the piezoelectric buzzer 4 is shown as the sounding body, but it is also possible to use a speaker and a voice synthesis IC to emit specific words such as "Recording now" from the speaker. You can also do it.

[Effects of the invention] As described above, according to this invention, when the recording state is selected, the sounding body attached to the movie emits an alarm sound, so the operator can surely recognize by hearing that the movie is in the recording state. Therefore, the operator does not miss a recording opportunity and can operate the movie while always visually checking the state of the subject without taking his eyes off the subject on the screen.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a movie according to an embodiment of this invention, Fig. 2 is a block diagram showing the circuit of the movie of this invention, Fig. 3 is a timing chart showing the operation of the movie of this invention, and Fig. 4. 5 is a perspective view showing a conventional movie, and FIG. 5 is a front view showing a display section of the conventional movie viewed from the view indexer. 1... Movie main body, 2... Selection switch, 4
...Piezoelectric buzzer, 9...Microphone, 11...
System control circuit, a... selection signal, b... mode switching signal, c... sound generation command signal. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A selection switch for selecting a recording state and a recording standby state, a control circuit for receiving a selection signal from the selection switch and outputting a sounding command signal during recording, and a sounding means for generating an alarm sound in response to the sounding command signal. A camera-integrated video tape recorder, characterized in that an audio signal processing circuit for processing an audio signal input from a microphone is provided with a filter means for attenuating the frequency component of the alarm sound emitted by the sounding means.