JPS63179676A - Video recording and reproducing device incorporating television receiver - Google Patents

Abstract

PURPOSE:To realize an additional function inexpensively with simple constitution by constituting a TV section and a VTR section incorporatedly and using a state signal of the VTR section so as to drive a signal processing circuit of the TV section directly. CONSTITUTION:When no cassette is loaded and a cassette-in switch 19 of a magnetic recording and reproducing device (VTR) section is turned off, a control output signal from a drive circuit 16 is not applied to a cathode ray tube (CRT) drive circuit 14, but when a cassette is loaded, a drive circuit 16 gives an output to make the screen of the CRT 15 blue in color. When the automatic repeat function enters the rewinding state from the reproducing state, a control signal is outputted to make the screen of the CRT 15 green in color. Thus, whether or not the cassette is loaded in the main body and whether or not the VTR is in the rewinding state are observed simply from the screen of the TV section 10.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a television integrated video recording and reproducing device that can be used in a device that integrates a television receiver and a magnetic recording and reproducing device.

Conventional technology In recent years, monitor televisions and magnetic recording and reproducing devices (hereinafter referred to as VT
A VTR with a monitor TV (hereinafter referred to as "R") is constructed so as to be completely integrated and is generally used for business purposes such as companies, schools, shops, and service industries.

Its uses include in-company training, educational purposes at schools, and product explanations for sales promotions. The greatest advantage of being able to use a monitor TV and VTR as one unit is that it is easy to carry, has excellent operability, and does not require cable connection.

If the monitor TV and VTR are separate, it is very inconvenient to connect cables and operate the monitor TV and VTR each time you move. This type of VTR with monitor TV is mainly used in corporate schools, etc., and since it is used by moving from room to room, it is difficult to integrate the monitor TV and VTR. It has the following characteristics.

Menki: A VTR with a monitor TV like this doesn't need to have a recording function, and it can just have a playback function.

Furthermore, in order to make such a VTR with a monitor TV as inexpensive as possible, the VTR section is often commercialized as a reproduction-only device.

Also, it is possible that the TV section has a tuner part to receive broadcast waves, but from the purpose explained above, in most cases, when combined with the playback function of the VTR section, it is used as a monitor TV. In many cases, the function alone is sufficient. and the cathode ray tube (CRT) in the monitor television section.
The screen size is selected from 5-inch to 14-inch depending on the purpose. Sizes 6 to 11 are suitable for carrying around to promote publishers, and sizes 9 to 11 are used for other cases.
Type 14 or larger is selected.

Problems to be Solved by the Invention In conventional equipment where the TV section and VTR section are separated,
In order to make the screen of the TV section shine in a certain color when a cassette is inserted, it is necessary to have a synchronization signal generation circuit and a specific color generation circuit, and to output a signal from this synchronization circuit in response to a cassette-in detection signal. However, the configuration is complicated and the price is very high.

Also, in order to generate a different color during rewinding, in addition to the above configuration, the phase of the color signal (3.58MHz) can be shifted by an appropriate value in order to generate another specific color. It is also necessary.

Specifically, when a soft tape is played repeatedly using the auto-repeat function for in-store advertising, during rewinding (about 5 minutes in the case of a long rewind), the screen may be blank if no signal is input to the external input. It is often requested that the screen becomes completely black and it is difficult to tell that a soft tape is being demonstrated, or that even if it is clear, some kind of signal should be output.

Furthermore, although the state in which the one-way set tape is inserted into the main body is generally indicated on the display section of the VTR section, there is often a request for this to be clearly indicated on the screen.

If the above-mentioned functions are to be realized only on the VTR side, complicated configurations such as a synchronization signal generation circuit, a color signal generation circuit, and a luminance signal generation circuit are required.

The present invention provides an integrated TV and VTR section, which requires a complicated circuit and is expensive in the conventional system in which the TV and VTR sections are configured separately. The present invention aims to realize the above functions with a simple control circuit.

Means for Solving the Problems In order to solve the above-mentioned problems, the television integrated video recording and reproducing apparatus of the present invention provides a cassette-in signal of the VTR section, a rewind state signal, and an HE state (stop).

The control signal S of the TV unit and CRT is driven by the detection signal in accordance with the VV status (playback status) signal (fast forward, 9 rewind, etc.) and the VV status (playback status) signal.

Effect of the present invention With the above-described configuration, the TV section and the VTR section are integrated, and the VT
By controlling the CRT and financial circuit of the TV section from the R section, it becomes possible to display a specific color on the TV screen according to the state of the VTR section.

EXAMPLE Next, an example of the present invention will be described. FIG. 1 is an external perspective view of a television integrated video recording and reproducing apparatus according to the present invention. FIG. 2 shows a seven-step block diagram of this embodiment, and FIG. 3 shows monitor side signal control waveforms for the VTR status. Further, FIG. 4 shows an example of a concrete implementation circuit.

In Fig. 1, 1 is the main unit, 7 and 8 are the VTR parts, 7 is the front loading cassette insertion slot, and 8 is the VTR unit.
These are the various operation buttons of the TR. This embodiment is an example in which the mechanical section is a vertical mechanism and the cassette is inserted vertically.

There is one power switch 2, which is common to the TV section and VTR section. 4 is an audio speaker, and 5 is a TV-related adjustment knob.

The present invention will be explained in detail with reference to the system diagram shown in FIG. 10
23 is mainly a TV section, and 23 is a VTR section.

In the TV section 10, only the signal display section is shown, and other power supply deflection systems and the like are omitted. 11 is the signal input section and 12.1
3, the signal is decoded into Y (luminance signal system) and C (color signal system) and transmitted to the CRT drive circuit section 14. 15 is a CRT. Further, the VTR unit 23 has its power supply-related, servo-related, etc. parts omitted, and only the parts related to the present invention are shown.

17 is a switching circuit for external input signals and VTR playback images; 19;
is a cassette down switch, 18 is a state control circuit, 2o
is a system control microcomputer, 21
．． 22 is a state control circuit.

Now, when no cassette is inserted (the cassette in switch 19 is off), the control output signal from the drive circuit 16 is output as shown in FIG. Although not added, when a cassette is inserted, the drive circuit 16 outputs a blue screen as shown in FIG. Generally, such VTR-integrated TVs have an automatic repeat function, which is a function used for in-store advertising, etc., but when the rewind mode is entered from the playback mode, the 011 screen appears as shown in Figure 3. A control signal is output so that the color becomes green.

In the above embodiment, an example was explained in which the entire screen is colored blue or green depending on the state of the VTR, but it goes without saying that the color of the screen can be freely set.

FIG. 4 shows the CRT drive circuit section 14 of the system block diagram of FIG. A concrete implementation circuit example of the drive circuit 16j state control circuit 18 is shown. Reference numerals 24 to 26 are drive output circuits for the CRT section 15, and 27 is a switching section for displaying a specific color depending on the state of the VTR section and when the general "/TR" signal is received.

Effects of the Invention As described above, according to the present invention, the TV section and the VTR section are integrated, and the signal processing circuit of the TV section is directly driven by the status signal of the VTR section, thereby making the structure simple and inexpensive. Additional functions can be realized, and it is easy to see whether a cassette is in the main unit or whether the VTR is in rewind mode by lighting up the entire screen of the TV section in a certain color, which has always been requested as a function. It is possible to achieve what was previously known at a low cost.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the external appearance of a playback device according to an embodiment of the present invention, FIG. 2 is a block diagram of the embodiment, FIG. 3 is a signal waveform diagram of the embodiment of the present invention, and FIG. 4 is a diagram showing the same implementation. FIG. 3 is an example circuit diagram. 1... Body, 2... Power switch, 3
...Power indicator lamp, 6...TV section operation knob, 8...VTR section operation button, 11...
...Video signal processing unit, 12...Brightness signal processing unit, 13...Color signal processing unit, 14...
CRT drive circuit section, 16... Name of CRT0 agent Patent attorney Toshio Nakao and one other person Figure 2
/θ-TV Capital Figure 3 Figure 4

Claims (2)

[Claims] (1) A television integrated video recording and reproducing device that integrates a television receiver and a magnetic recording and reproducing device in the same housing, which detects the cassette down switch section provided in the magnetic recording and reproducing device and detects the cathode rays. An integrated television set characterized by being configured to control the signal drive circuit section of the tube to make the cathode ray tube of the television receiver shine in a specific color to indicate the presence of a cassette in the magnetic recording/reproducing device. Video recording and playback device. (2) The claim is characterized in that the magnetic recording/reproducing device is configured to control the signal drive circuit section of the cathode ray tube so as to emit light in a specific color by detecting a status signal when the magnetic recording/reproducing device is in the unwinding state. The TV-integrated video recording and reproducing device according to item 1.