JPH0119503Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a remote control signal generator that can be controlled by a lock type switch. (Prior Art) A remote control signal generator using a non-locking switch is already known, and is configured, for example, as shown in FIG. In FIG. 1, numerals 1, 2, 3 and 4 are non-lock type switches, respectively. Reference numeral 13 denotes a remote control signal generator, which outputs a remote control signal S consisting of a serial signal in response to, for example, a matrix input. The remote control signal generator 13 has already been integrated into an integrated circuit, such as MK5087(N) (Mostek) and N50115×P (Mitsubishi Electric). The outputs of switches 1 and 3 are connected to the third column terminal (Col) of remote control signal generator 13 through diodes 5 and 7.
3), the outputs of switches 2 and 4 are connected to diodes 6,
The outputs of switches 1 and 2 are supplied to the first row terminal (Row 1) of the remote control signal generator 13 via inverters 9 and 10, respectively. ), the outputs of switches 3 and 4 are supplied to the second row terminal (Row 2) of remote control signal generator 13 via inverters 11 and 12, respectively. Therefore, when switches 1, 2, 3, and 4 are individually turned on, different remote control signals S are output, and the remote control signal generator 13
A remote control signal receiver (not shown) receives the remote control signal S, and the controlled device switches the assigned function in response to the remote control signal S, for example, A, B, C, D. It will be done. However, for the same function in the controlled equipment,
In a case where control is possible by a manual operation switch installed directly on the controlled device and remote control, if the manual operation switch is a lock type switch, the switch controlling the remote control signal generator 13 is also locked. A type switch is also desirable from the viewpoint of operability. Further, there are cases where the manually operated switch has both functions as a lock type switch and functions as a non-lock type switch. In such a case, it is desirable from the viewpoint of operability that the switch for controlling the remote control signal generator 13 be a lock type switch for the former, and a non-lock type switch for the latter. However, in the past, there was no remote control signal generator controlled by a lock type switch. (Purpose of the invention) The present invention has been made in view of the above, and is a remote control that can be controlled by a lock type switch, and if necessary, can be used in combination with a non-lock type switch, and can give priority to control by the lock type switch. The object of the present invention is to provide a signal generator. (Structure of the invention) The remote control signal generator of the invention has a movable piece to which a power supply voltage is applied to one terminal, the other terminal is grounded, and which is selectively brought into contact with one terminal or the other terminal. and a plurality of lock-type switches which use the outputs from the movable pieces as output signals, a decoder which sends outputs from output terminals corresponding to the combination of output signals from the plurality of lock-type switches, and a A differentiation circuit that is connected and differentiates each output from the decoder, and a series circuit in which the output from the differentiation circuit is input to the corresponding row and column, and the output from the differentiation circuit corresponds to the input row and column. The present invention is characterized by comprising a remote control signal generator that outputs a remote control signal consisting of a signal. Further, a logic circuit is provided that supplies voltage to one terminal of the plurality of non-lock type switches when there is no output from the differentiating circuit, and the output from the other terminal of the non-lock type switch is applied to the other terminals of the remote control signal generator. By providing an input of 1, the remote control signal generator can be easily controlled by either a locking switch or a non-locking switch. The present invention will be explained below with reference to examples. FIG. 2 is a circuit diagram showing the configuration of one embodiment of the present invention, and is an example in which control by a non-lock type switch is also possible. In the embodiment of the present invention shown in FIG. 2, the same components as those of the conventional remote control signal generator shown in FIG. 1 are designated by the same reference numerals. 41 to 44 are lock type switches. Switches 41 and 42 are switches that issue control instructions for functions different from those of switches 1-4. switch 43
is a switch for controlling one of the control instructions given by switches 41 and 42, and controls the supply of voltage +B to the collector of transistor 22, which will be described later.
This is a switch that controls the opening and closing of the AND gate. The switch 44 supplies power to the remote control signal generator.
This is a switch that works with the switch that turns on and off the supply of B. The contact 44-1 of the switch 44 is connected to the power supply +B via the pull-up resistor 37.
-2 is grounded. Further, the contact 44-1 is grounded via the switch 43. One contact 41-1 of switches 41 and 42
and 42-1 is connected to the power supply + via switch 44.
B voltage is supplied and switches 41 and 4
The other contacts 41-2 and 42-2 of 2 are grounded. The outputs from the movable pieces of switches 41 and 42 are connected to inverters 16 and 17 and AND gate 18.
.
1 generates a high potential output. The outputs of AND gates 18 to 20 are each output from differentiating circuit 2.
3, 24, and 25 are output separately. The output of the AND gate 21 is supplied to the base of a transistor 22 whose collector is grounded via a switch 43, and the emitter output of the transistor 22 is output via a differentiating circuit 26. Here, the transistor 22 is operated as an AND gate as described above. The output of the differentiating circuit 23 and the output of the differentiating circuit 25 are connected to the first column terminal (Col) of the remote control signal generator 13 via diodes 27 and 29, respectively.
1), and the output of the differentiating circuit 24 and the output of the differentiating circuit 26 are connected to diodes 28 and 30.
each separately via a remote control signal generator 13
It is supplied to the second column terminal (Col2) of . In addition, the output of the differentiating circuit 23 and the differentiating circuit 24
The outputs of are supplied to the third row terminal (Row 3) of the remote control signal generator 13 via inverters 31 and 32, respectively, and the outputs of the differentiating circuit 25 and the differentiating circuit 26 are supplied to the inverters 33 and 34, respectively. The signals are respectively supplied to the fourth row terminal (Row 4) of the remote control signal generator 13 via separate channels. On the other hand, the outputs of the differentiating circuits 23-26 are supplied to a NOR gate 36, and the output of the NOR gate 36 is supplied to one terminal of the non-lock type switches 1-4 in place of the power supply +B shown in FIG. (Operation of the invention) In one embodiment of the invention constructed as described above, the remote control signal generator 13 supplies pulses to the n-th column terminal (Coln) and the m-th row (Rowm) as shown in FIG. A serial remote control signal S corresponding to [n, m] is output only when Now, with the movable piece of the switch 44 in contact with the contact 44-1, the voltage of the power supply +B is supplied to the remote control signal generator, and at the same time the switch 4
1 and one contact 42-1 of the switch 42. In this state, the outputs of the decoders, that is, the outputs of the AND gates 18 to 21, are as shown in Table 1 with respect to the positions of the movable pieces of the switches 41 and 42. In the following, high potential output is indicated by H, and low potential output is indicated by L. The outputs of AND gates 18-20 are differentiated by differentiating circuits 23-25, respectively. Also,

[Table] When the switch 43 is set to the off state, the voltage of the power supply +B is applied to the collector of the transistor 22, and the transistor 22 is in the on state while the AND gate 21 is generating a high potential output. The emitter voltage of the transistor 22 is differentiated by the differentiating circuit 26. In this case, the output of the AND gate 21 is directly connected to the differentiating circuit 26. Now, if the switch 43 is set to the OFF state and the movable piece of the switch 41 is brought into contact with the contact 41-2, and the movable piece of the switch 42 is switched,
It works as shown in Figure 4a. For a predetermined period determined by the time constant of the differentiating circuit 25 from when the movable piece of the switch 42 is brought into contact with the contact 42-1, a high potential signal is applied to the first column (Col1) of the remote control signal generation circuit 13 and the fourth row A low potential signal is supplied to (Row 4), and the remote control signal generator 13 generates a remote control signal that causes the controlled device to perform function G.
Further, for a predetermined period determined by the time constant of the differentiating circuit 26 from when the movable piece of the switch 42 is brought into contact with the contact 42-2, a high potential signal is applied to the second column (Col2) of the remote control signal generator 13. 4 rows
4) is supplied with a low potential signal, and the remote control signal generator 13 generates a remote control signal that causes the controlled device to perform function H. In addition, in FIG. 4a, the differentiating circuits 25 and 26
During the period in which the NOR gate 36 is generating an output, the NOR gate 36 is generating a low potential output, and during this period, the switches 1, 2,
Even if 3 or 4 is turned on, the remote control signal generator 13 will not generate a remote control signal for controlling the functions of A, B, C or D. Furthermore, when the movable piece of the switch 42 is switched while the switches 1, 2, 3, or 4 are in the on state, the differentiating circuit 25 or 26 generates an output, and the output of the NOR gate 36 becomes a low potential. For,
The output of the movable piece of switch 42 takes priority over the outputs of switches 1-4. Also, the differential circuit 2
During the period in which the switches 5 and 26 are not generating output, the remote control signal generator 13 can be controlled by the switches 1 to 4 even during the period T shown in FIG. 4a. Furthermore, when the switch 43 is turned on, the collector of the transistor 22 is grounded, and even if the AND gate 21 generates a high potential output, the transistor 22 is off, and the output of the AND gate 21 is connected to the differential circuit. 26 is not supplied. Therefore, in this case, the operation of function H of the controlled device can be stopped by turning on the switch 43. Furthermore, by controlling the switch 43 from the on state to the off state when the AND gate 21 is at a high potential, the output of the AND gate 21 becomes equivalent to that supplied to the differentiating circuit 26 via the transistor 22, and the differentiating circuit The remote control signal generator 13 is controlled by the output of 26. Next, connect the movable piece of the switch 42 to the contact 42-2.
When the movable piece of the switch 41 is brought into contact with the contact point 41-1 and the movable piece of the switch 41 is switched, the action is as shown in FIG. , the remote control signal generator 13 generates a remote control signal that causes the function F or H of the controlled device to function. Furthermore, the effects of the switches 41 and 42 on other states are similar, and detailed explanation thereof will be omitted. However, the control of the remote control signal generator 13 by the switches 41 and 42 has priority over the control of the remote control signal generator 13 by the switches 1 to 4, and the supply of the output of the AND gate 21 to the differentiating circuit 26 is substantially This is controlled by the switch 43 in the same way as in the case described above. Further, assuming that a time constant is set so that the voltage of the power supply +B is maintained for a predetermined time after the movable piece of the switch 44 contacts the contact 44-2, the movable piece of the switch 44 is brought into contact with the contact 44-2. When the switches 41 and 42 are brought into contact, the outputs of the switches 41 and 42 become low potential unless the movable pieces of the switches 41 and 42 are in contact with the contacts 41-2 and 42-2, and the switch 43 is in the OFF state. In this case, the remote control signal generator 13 will generate a remote control signal that causes the controlled device to perform function H. (Effects of the invention) As explained above, according to the invention, the remote control signal generator can be controlled by a lock type switch, and since a differentiating circuit for differentiating the output of the decoder is provided, the output of the differentiating circuit is converted into a NOR gate. By providing a non-lock type switch via a switch, etc., it is possible to mix the non-lock type switches and control the remote control signal generator with the non-lock type switch. Further, control by a lock type switch can be given priority over control by a non-lock type switch. Furthermore, since the lock type switch that directly controls the remote control signal generator takes its output from the movable piece, it is possible to simultaneously output a combination of the outputs of a plurality of lock type switches.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional remote control signal generator. FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention. 3 and 4 are waveform diagrams for explaining the operation in one embodiment of the present invention. 1-4...Non-lock switch, 5-8 and 27-30...Diode, 9-12, 16,
17 and 31-34...Inverter, 13...
Remote control signal generator, 18-21...AND gate, 23-26...Differential circuit, 36...NOR gate, 41-44...Lock type switch.

Claims (1)

[Scope of utility model registration request] A plurality of locks have a power supply voltage applied to one terminal, the other terminal is grounded, have a movable piece that selectively contacts one terminal or the other terminal, and have an output from the movable piece as an output signal. a decoder that sends an output from an output terminal corresponding to each combination of output signals from the plurality of lock-type switches; and a decoder that is connected to each output terminal of the decoder and that differentiates each output from the decoder. A remote control signal that outputs a remote control signal consisting of a differentiating circuit, and a serial signal in which the output from the differentiating circuit is input to the corresponding row and column, and the output from the differentiating circuit is made to correspond to the input row and column. A remote control signal generator comprising: a generator.