JPS6286975A - Video recording and reproducing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a video recording and reproducing device in which a magnetic recording and reproducing unit (VCR unit) and a video camera unit can be connected and separated.

BACKGROUND OF THE INVENTION In recent years, video recording and reproducing devices for recording and reproducing images of landscapes, etc., have been developed in which a camera section and a VCR section are separable and integrated, and the magnetic tape in the VCR section also has different tape widths. There are many different types of tape recording systems, including those with different tape recording methods.

FIG. 4 is a side view showing the basic configuration of a conventional video recording and reproducing device of this type, in which 1 is a lens barrel, 2 is a camera body, and 3
is a locking protrusion provided on this camera body 2,
It has a hook-shaped locking part 3a at the tip. 4 is an electrical connector, which is a male type. 10 is a VCR housing;
Reference numeral 6 denotes an engagement hole into which the protrusion 3 is inserted, and when the locking part 3a of the protrusion 3 is caught inside the engagement hole 5, the VC
The R housing 10 and the camera body 2 are integrated, and at that time the VC
A female connector 6 provided on the R housing 10 is also engaged with the connector 4, and an electrical connection is also established. Further, the power supply voltage for driving the camera body 2 is supplied from the VCR housing 10 via the connector 6.4.

Problems to be Solved by the Invention However, in conventional devices, the camera section outputs a predetermined video signal and the VCR section records the video signal, but the VCR section uses 8 mm tape.
, % inch tapes were each associated with a dedicated camera section, and there was no concept of sharing the camera section, so it was not possible to share the camera section. One of the reasons why they cannot be shared is the difference in the power supply voltage used; for example, a % inch VCR uses 12 volts and an 8 mm VCR uses 8 volts.

The present invention makes it possible to connect the same camera section to, for example, an 8 mm VCR section and a % inch VCH, which use different power supplies.

Means for Solving the Problems The present invention uses a camera section to connect multiple VCs with different power supply voltages.
A VCH configured to be selectively mechanically and electrically detachable from the R section and coupled to the camera section.
Means for detecting a difference in the power supply voltage used by the VCR and converting the power supply voltage inputted to the camera section from the VCR into a predetermined voltage according to the detected output, and using the voltage as the power supply for the camera section. is built into the camera section.

Operation With the above configuration, the same camera unit can be selectively used for VCHs with different power supply voltages, so when there are differences in the subjects to be recorded, an appropriate VC can be used depending on the recording situation, etc.
The R section can be selected, which is advantageous in terms of overall cost.

Embodiment Hereinafter, one embodiment of the video recording and reproducing apparatus of the present invention will be described with reference to the drawings.

FIG. 2 is a sectional view of the camera section and the % inch VCH in a separated state, and in the figure, 1 to 6 are given the same signals as in the conventional example, and the explanation thereof will be omitted. The difference from the conventional example is that the VCR section 10a is a VCR that uses % inch tape, and that the camera section housing 2 is fitted into the recess 8 provided in the VCR section 10a, and by this fitting. The protrusion 8a provided in the recess 8 pushes the switch 9 of the camera housing 2. As shown in FIG. 1, the voltage of 12 volts applied from the power supply circuit 11 on the VCH side to the camera unit 2 via the connectors 6 and 4 is applied to the voltage conversion circuit 12 through the contact a by pressing the switch 9. The voltage is converted to 8 volts, which is the power supply voltage of the camera section, and transmitted to the camera signal processing circuit 13.

Next, when the camera unit 2 is combined with the 8mm VCR1° as shown in Figure 3, this engagement prevents the VCR10 from pressing the switch 9, so the 8mm VC
The power supply voltage of 8 volts from R1o is directly transmitted to the camera signal processing circuit 13 via the connector 6.4 and the contact point of the switch edge 9.

Effects of the Invention As described above, according to the present invention, one camera unit can be used by selectively combining multiple types of VCRs with different power supply voltages, so the tape to be used can be adjusted depending on the subject and shooting conditions. It is possible to select VCRs with different widths or recording methods.

[Brief explanation of drawings]

FIG. 1 is an electrical diagram of the main parts of an embodiment of the video recording and reproducing apparatus of the present invention, and FIG. 2 is a schematic side sectional view showing a separated state of the camera section and the first VCH in the embodiment. FIG. 3 is a side view showing how the camera section and second VCR are coupled in the same embodiment, and FIG. 4 is a schematic side sectional view showing a conventional video recording and reproducing apparatus. 1... Lens barrel, 2... Camera section, 3
...Protrusion, 4...Male electrical connector,
8...Concave portion, 8a...Protrusion portion, 9...
...Switch, 10, 10a...VCR
Section 11... Power supply circuit, 12... Voltage conversion circuit, 13... Camera signal processing circuit. -Name of agent/patent attorney Toshi Nakao and 1 other person

Claims (1)

[Claims] configuring the camera section to be mechanically and electrically removable to a plurality of magnetic recording and reproducing devices using different power supply voltages, and detecting differences in the power supply voltages of the magnetic recording and reproducing devices coupled to the camera section; The camera includes means for converting the voltage of a power source inputted to the camera section from the coupled magnetic recording/reproducing device into a predetermined voltage in response to the detection, and using the voltage as a power source for the camera section. A video recording and reproducing device characterized in that it is built into a unit.