JPS60192496A - Remote control signal transmission confirming device - Google Patents

Abstract

PURPOSE:To obtain ease of remote control and mis-operation by reproducing a pseudo key input signal entirely identical to a key input signal of a local position from a code signal at a reception side and returning the pseudo key input signal and displaying the pseudo key input signal to the local position. CONSTITUTION:Caption 11 is a key matrix circuit and six output lines are connected to a transmission circuit 12. The transmission data is transmitted while being subject to optical modulation by an optical transmitter 13 comprising a light emitting diode. The optical signal transmitted from the optical transmitter 13 is received by a photoreceiver 14 at the reception side A2 and converted into an electric signal. This signal is waveform-shaped via an amplifier 15, a low pass filter 16, becomes a reception signal SG2, is inputted to a reception circuit 17 and succeedingly to a remote control signal processing section 18. Then a pseudo key matrix circuit 21 generates the entirely similar signal as a signal generated by a key matrix 11. This signal is inputted to a return transmission circuit 22 and fed to the transmission side A1 by the optical transmitter 23.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a remote control signal transmission confirmation device.

[Technical background of the invention and its problems]

For equipment that requires remote control operation,
In order to confirm whether or not the operation was performed correctly by operating the handheld controller, the user confirms by looking at the operating status on the receiving side. However, with this method, the user must perform the operation while looking at both the hand side and the receiving side, and may make a mistake in the operation when taking his/her eyes off the handheld controller. Furthermore, if the receiver is placed in a position where it cannot be seen, it is not possible to check the reception status.

[Purpose of the invention]

This invention was made in order to deal with the above-mentioned circumstances, and it is possible to check whether the remote control signal has been correctly received by the receiving side on the handheld controller side, thereby reducing operational errors and making the remote control easier to operate. The purpose of the present invention is to provide a signal transmission confirmation device.

[Summary of the invention]

In this invention, a pseudo-key human power signal that is exactly the same as the key human power signal on the hand-operated side is regenerated from a code signal on the receiving side, and this pseudo-key human-powered signal is returned to the hand-operated side for display, thereby allowing remote control operation. This provides ease of operation and prevention of erroneous operation.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the left side of the dash-dotted line A is 1 to the transmitting side of the remote control signal, and the right side is the receiving side A2. Starting from the transmitting side AI, 11 is a key matrix circuit, and six output lines are connected to a transmitting circuit 12.

The transmission circuit 12 sends a scan signal to the key matrix circuit 11, determines which of the 6×5-30 keys has been operated from the key manual signal, and converts the determined signal into a 5-bit transmission code. Convert to Furthermore, in the transmitting circuit 12, a 2-bit +t addition code (for example, input from a control key, shift key, etc.) is added to the 5-bit transmission code to create a 7-bit transmission code, and the transmitting circuit 12 own key code 3
The bits are combined and all 10 bits are sent as one word. This 10-bit transmission data is optically modulated by an optical transmitter 13 using a light emitting diode and then transmitted.

The optical signal transmitted by the optical transmitter 13 is received by the optical receiver 14 on the receiving side A2 and converted into an electrical signal, and this signal is waveform-shaped via an amplifier 15 and a low-pass filter 16 to generate a received signal 8G2. The signal is then input to the receiving circuit 17.

This receiving circuit 17 converts the received signal SG7 into a 7 unit code D.
A and input it to the remote control signal processing section 18.

Here, the standards of the transmission signal SG1 of the transmission circuit 12 and the reception signal SG2 of the reception circuit 17 will be explained.

The carrier wave of the transmitted signal S01 has a pulse width of 0.25 ma and a pulse interval of 1 ms, and when the code signal "0" continues, it becomes a transmitted signal with a pulse interval of 1 m@, and the code signal "11" If present, the pulse interval is 2 ms. FIG. 2(a) shows the unit waveform of the transmission signal when the code is "0", and FIG. 2(b) shows the unit waveform of the transmission signal when the low P is "1". By combining these, Figure 2 (C)
A transmission signal is created as shown in . ea is the key code, cb is the code obtained by the key signal e11, ee
is the code section by shift, control keys, etc. The code for the example shown is r 0001010000 J
It is.

On the other hand, FIG. 3 shows the code judgment reference signal of the receiving circuit 17, and this circuit has a pulse interval T of 0.4 ms≦T.
p (When 1,6rr+s, the code is determined to be "0"; when 1.6 ms≦T and 3.2 ms, the code is determined to be "1".

If the unique key code Ca of the transmitting circuit 12 matches the own key code, the receiving circuit 17 accepts the transmitted data as correct, and if not, it does not accept the data. Well, if the data is accepted as correct, the key code eiL is
It is removed regardless of the 7-unit code DA.

In the remote control signal processing section 18, various control operations are obtained based on the contents of the 7-unit code DA.

Next, the 7-unit code DA is applied to the delay pan-a circuit 1.
It is latched to 9. 7 unit code DA latched here
is input to the decoder 20 when the falling edge 9 pulse P1 indicating the completion of reception is input from the reception circuit 17.

The timing signal at this time is as shown in Figure 4.
, FIG. 4(,) shows the falling pulse P1 of the receiving circuit 17, and FIG. 4(b) shows the 7-unit code given to the delay buffer circuit 19 from the receiving cycle @17. -D6 period, FIG. 4(d) is the latch pulse P2 given from the receiving circuit 17 to the delay buffer circuit 19, FIG. 4(e)
is the serial data clock corresponding to the 76-unit code in the reception circuit 17, and FIG. 4C is the timing clock for setting the on/off period of the decode output. With this, decoder 2
From 0, the decoded output is always obtained after the reception of the received data is completed.

This is to prevent the reception signal (forward data) B7 and the return signal (reverse data) 132 from occurring at the same timing and causing signal disturbance.

The signals output from the decoder 20 are converted into signals on, for example, 30 data buses so that they can be used by the pseudo key matrix circuit 21.

Pseudo key matrix circuit 20 generates exactly the same signal as that generated by key matrix 11 based on the 7-unit code. This signal is input to the return transmission circuit 22, and is sent to the transmission side A1 by the optical transmitter 23. The transmitting side A7 is provided with an optical receiver 4 that receives a signal from the optical transmitter 3, and the signal received here is sent to the receiving circuit 2 via an amplifier 25 and a low-pass filter 26.
7 and is demodulated.

Then, it is input again to the display unit 28 as a 7-unit code.

According to the above-described device, when a key operation is performed for remote control, the contents of the operation are sent back via the receiving side and can be confirmed on the display unit 28 at hand.

Therefore, it is possible to prevent operational errors from occurring, and there is no need to check the status of the receiving side each time an operation is performed, making the operation easier.

Here, the decoder 20 and the pseudo key matrix 21, which are the main parts of the present invention, will be explained with reference to FIG.

Reference numeral 201 is an input terminal to which a 7-unit code DA is applied, and has seven data lines, of which the upper two bits are connected to the transmission circuit 22. This 2-bit data is used to start data return processing to the transmitting circuit 22. Next, among the remaining 5-bit lines, the upper 2 bit lines are connected to the selector 31, and the lower 3 bit lines are connected to the decoders 32, .
93.34, ,? 5 in parallel.

Here, the conversion mode of this decoder 20 is set as shown in FIG. That is, 2-bit data D
, 9, D4 are given to the selector 31, and chip selects the decoders 32 to 35 according to the contents thereof. Next, each decoder 32-35 receives data D0-D!
is given, but each decoder decodes 7 bits, 8 bits, 8 bits, and 7 bits from this 3 bit information, respectively.
Get bit decode output. The output of these 30 lines is an AND circuit (AND 1 to AND 30)
(AND 8 to AND 30 are not shown). And the AND circuit (AN1~
AND30) are divided into units of five, and the output of each divided AND circuit is divided into six OR circuits (OR circuits).
1 to 0R6). Also, each AND circuit (AND
A scan signal is input to the other input terminal of each of J to AND30), and this scan signal line is composed of five lines. As a result, the 30 data buses from the decoders 32 to 35 are connected to the AND circuit AND 1
~ AND 30 will be matrixed. now,
Considering the decoder 32, data D. ~D, is “
There are 100 to 111 types, and in order to identify them, one line is set to be at a high level. Which of the output lines of the decoder 32 is at high level is identified by the scan signal.

Therefore, according to this circuit, 30 types of code or 9 data D0 to D4 can be identified.

A-J~A15. B-1 to B15 are their identification names.

Then, the outputs I6 to I11 of that group are the OR circuit O
It is output from RI to OR6, and becomes a pseudo key human input signal.

As a result, it is possible to obtain a pseudo key human input signal that is exactly the same as the key human input signal generated in the key matrix circuit 1. As shown in FIG. 7, the key matrix matrix circuit 11 includes a 5-line scan signal bus 40, a 6-line output signal path 41,
The key selection section 42 has a 1-1 output, that is, the key input signal is input to the code generation circuit 43, and the previous data D is input. ~D4
becomes.

〔Effect of the invention〕

As explained above, the present invention enables the local operating side to confirm whether or not the remote control signal has been correctly received on the receiving side, thereby preventing operational errors and facilitating remote control signal transmission confirmation. equipment can be provided.

[Brief explanation of drawings]

FIG. 1 is a configuration explanatory diagram showing one embodiment of the present invention, FIGS. 2, 3, and 4 are signal waveform diagrams of various parts shown to explain the operation of the circuit in FIG. This figure is a circuit diagram showing a part of the circuit of FIG. 1, FIG. 6 is an explanatory diagram showing a conversion mode table of the circuit of FIG. 5, and FIG. 7 is a diagram showing a key matrix circuit. DESCRIPTION OF SYMBOLS 11... Key matrix circuit, 12.21... Circuit for transmission, 16.26... Circuit for reception, 19... Decoder, 20... Pseudo key matrix circuit, 27.
...Display section. Applicant's agent Patent attorney Takeshi Suzue Hikoken r゛ Phrases 0
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Claims (1)

[Claims] a key matrix circuit that generates a key manual signal in response to a key operation on a hand-held operating side; a transmitter that generates a code signal in response to the key manual signal; and a transmitter that modulates the 6-code signal and transmits it to the receiving side. and receiving means for receiving the signal from the transmitting means and demodulating the code signal, and converting the demodulated code signal by a decoder and generating a pseudo key human signal that is the same as the key human signal by a pseudo key matrix circuit. The present invention is characterized by comprising means for modulating the pseudo-key human power signal and sending it back to the hand-operated side, and means for demodulating the pseudo-key human-powered signal on the hand-held operating side and displaying the contents of the key operation. Remote control signal transmission confirmation device.