JPH0217374Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field of the Present Invention> The present invention relates to a signal input/output switching device.

<Background art that led to the invention> Generally, a signal input/output switching device is used as a relay device when transmitting and receiving signals between electronic devices such as televisions, VTRs, and video disc players. In conventional devices, input terminals and output terminals are provided separately for each electronic device, so as the number of compatible electronic devices increases, the number of input and output terminals becomes extremely large. It has the disadvantage that the circuit becomes more complex because it only has a signal path determined by the terminal.

<Purpose of the present invention> The present invention was devised in view of the shortcomings of such conventional signal input/output switching devices, and is a switching device that allows a terminal to function as an input terminal or an output terminal by operating a changeover switch. The aim is to provide the equipment.

<Configuration of the present invention> An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is an external perspective view of the signal input/output switching device according to the present invention, in which 1 is the main body, 2 to 6 are terminals (consisting of jacks) provided on the front surface of the main body 1, and 3 are connected to the input and output sides of VTR1, and terminals 4 and 5 are connected to the television TV.
The terminal 6 is connected to the input side and the output side of the video disc player VP.

2A to 6A are the respective terminals 2 as shown in Figure 2.
The input/output changeover switches are provided corresponding to input/output switches 6 to 6, respectively, and have an input contact a and an output contact b, and by operating the knobs 2a to 6a provided on the front of the main body 1, the input or output contacts b is configured to be selectively turned on.

2B to 6B are signal path changeover switch units (hereinafter referred to as switch units) provided corresponding to each terminal 2 to 6, each having four switches, and each of these switches is provided on the top surface of the main body 1. It is designed to be turned on and off by operating each button of the button units 2b to 6b.

<Operation of the present invention> The present invention is constructed as described above.
Next, its effect will be explained.

Now, the video played on the video disc player VP is displayed on the TV and the VTR1
To record data, first turn on the input/output switch 6A at terminal 6 by operating the knob 6a, and turn on the input/output switch 4A at terminal 4 and the input/output switch 2A at terminal 2 by turning the respective knobs. 4a, 2a to turn on output contact b, and then switch unit 6
It is best to turn on the first and third switches S ₁ and S ₃ in B.

Then, the video signal output from the video disc player VP is transferred from the input terminal 6 to the input contact a of the input/output switch 6A to the switch unit 6.
Switch _S1 in B - Output contact b of input/output switch 2A - Terminal 6 which is supplied to the VTR 1 via the route of terminal 2 which becomes the output terminal and is recorded and also becomes an input terminal - Input of input/output switch 6A The signal is supplied to the television TV via the route of contact a, switch _S3 in switch unit 6B, output contact b of input/output switch 4A, and terminal 4, which serves as an output terminal, and is displayed on the television screen.

In addition, if you want to record the video signal (including audio signal) received by the television TV on the VTR 1, turn on the input/output switch 5A at the terminal 5 to the input contact a by operating the knob 5a, and also turn on the input/output switch 5A at the terminal 5.
Turn on the input/output selector switch 2A to the output contact b by operating the knob 2a, and switch the switch unit 5.
It is best to turn on switch _S1 in B.

Then, the video signal received by the television TV and outputted from it is transferred to terminal 5 which becomes the input terminal - input contact a of input/output switch 5A - switch S ₁ in switch unit 5B - input/output switch 2.
It is recorded on the VTR 1 via the route from output contact b of A to terminal 2, which serves as the output terminal.

In addition, when displaying the video signal recorded on the VTR 1 on a television TV, first turn on the input/output switch 4A at terminal 4 to output contact b by operating the knob 4a, and turn on the input/output switch 4A at terminal 3. 3A is turned on to input contact a by operating knob 3a, and then switch unit 3
It is best to turn on switch S ₂ in B.

Then, the video signal reproduced from the VTR 1 is transferred to terminal 3 which is the input terminal - input contact a of input/output switch 3A - switch in switch unit 3B.
S ₂ - Output contact b of input/output switch 4A - Television via the route of terminal 4, which is the output terminal.
It is supplied to the TV and displayed on the TV screen.

Furthermore, the video signal to be played from VTR1 is
When dubbing to VTRs (VTR2 and VTR3), remove the connection wires for the television TV and video disc player VP from terminals 5 and 6, and instead connect the VTR2,
Connect to the input side of the VTR 3, and operate the knobs 5a and 6a of the input/output switches 5A and 6A to connect the respective output contacts b as shown by the broken lines in Figure 2.
It is good to turn on.

Then, the video signal reproduced from the VTR 1 is transferred to terminal 3 which is the input terminal - input contact a of input/output switch 3A - switch in switch unit 3B.
S ₃ , S ₄ - Each output contact b of input/output switch 5A, 6A - Supplied to VTR2, VTR3 via the route of terminals 5, 6 which serve as output terminals, and are connected to the two VTRs.
will be recorded.

<Effects of the Present Invention> Since the present invention is constructed as described above, one terminal can be made to function as an input terminal or an output terminal as required by operating an input/output changeover switch.

That is, in conventional signal distributors or switchers, the number of input and output terminals and signal paths are fixed, but in the present invention, the number of input and output terminals and signal paths can be arbitrarily set by operating a changeover switch. For example, if the device has 6 terminals,
In some cases, the input terminals and output terminals can be freely combined by simply operating the input/output switch, such as 1 input terminal, 5 output terminals, 2 input terminals, and 4 output terminals.

Therefore, this is an excellent idea that is extremely easy to use and can also reduce the number of terminals.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view of one embodiment of the signal input/output switching device of the present invention, and FIG. 2 is an electric circuit diagram showing the electrical connection between the same device and electronic equipment. 2 to 6: terminals, 2A to 6A: input/output changeover switches, 2B to 6B: signal path changeover switch units.

Claims (1)

[Scope of utility model registration request] In an apparatus that is connected to a plurality of electronic devices through a plurality of terminals and connects each terminal via a signal path switching circuit means to relay the transmission and reception of signals between the respective electronic devices, each of the terminals and the signal path An input/output switch is provided between the switching circuit means for selectively switching each terminal as an input terminal or an output terminal, and each terminal is input by switching the input/output switch. A signal input/output switching device configured to be set as a terminal or output terminal.