JPS6031396A - Remote control transmitter - Google Patents

Abstract

PURPOSE:To attain the control of three kinds of devices by switching with one set of remote controller by providing the 1st and 2nd changeover switches and operating the changeover switches through combination. CONSTITUTION:In bringing the mode to the television mode (state shown in Fig.) by changing over the changeover switch 1, the part between the changeover switches 1 and 2 is opened, and the switching of a device discriminating code and inhibition or switching of various key functions are attained independently of the changeover switch 2. In bringing the mode to the VTR or the video disc player mode by switching the changeover switch 1, the part between the changeover switches 1 and 2 is conducted and the mute key and the stop key are changed over. Further, in selecting the VTR mode or the video disc player mode by the changeover switch 2, through plural contacts interlocked in the changeover switch 2, the switching of the device discriminating code, switching of tone color of a piezoelectric buzzer 7 and inhibition of various key functions in the other key matrix 3 are conducted so as to bring the mode to the VTR mode or the video disc player mode.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a remote control transmitter that can control the operations of three types of equipment with one unit.

(Conventional configuration and its problems) In conventional remote control transmitters, each device uses its own dedicated remote control transmitter, and one remote control transmitter cannot control other types of devices. There wasn't.

Such inconveniences in conventional remote control transmitters become noticeable when, for example, a television is connected to a video recorder (hereinafter referred to as a VTR) and a video disc player. In other words, the operation of a television cannot be controlled without a dedicated remote control transmitter, and in order to operate a V'rR or a video disc player, a remote control transmitter dedicated to the television must be used.
Since the user must operate a remote control transmitter dedicated to the TR-J or video disc player to control their operations, the user often has to operate multiple remote control transmitters, making the operation very complicated. there were.

(Object of the Invention) The present invention has been made in view of the drawbacks of the conventional examples described in 2. The present invention is a remote control transmitter that can control the operation of three types of devices, device A, device B, and device C, with one device. It provides:

(Structure of the Invention) In order to achieve the above object, the present invention provides a first changeover switch that switches between the control mode of device A and the control mode of device B-1: or device C, and a control mode of device B. and equipment C
A second changeover switch is provided to change over the control mode, and when the first changeover switch is switched to the device A side, the device identification code of device A is transmitted regardless of the second changeover switch. When the first selector switch is set to the device B or device C side, the second selector switch switches to the control mode of device A.
is selected, the device identification code of the selected device is transmitted, the device B or device C becomes the control mode, and the first and second changeover switches switch between three modes. .

(Explanation of Examples) Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing the operation section of an embodiment of the present invention when device A, device B, and device C are respectively a television, a VTR, and a video disc player. In addition to a changeover switch 1 for switching between VTR mode and video disc player mode,
Keys are provided for instructing various functions such as tuning the television, playing and stopping the VTR and video disk player.

The data hood, which instructs various functions of the television, VTR, and video disc player, is set as shown in the table. Here, the data code for the meet function of the TV and the stop function of VTRs and video disc players is the same, but in this embodiment, as will be explained later, the stop key is pressed by switch 1 and 2 in the TV mode. These operations are prohibited in the circuit so that the meet key does not operate as a meet key, or conversely, the meet key does not operate as a stop key in VTR or video disc player mode. Also, for other unnecessary functions with the same data code, use the changeover switch as well.
and 2, it is prohibited in terms of circuitry.

FIG. 2 is a diagram showing a circuit according to an embodiment of the present invention, and the changeover switches 1 and 2 each have a plurality of interlocking contacts, and the contact points in the figure are marked with A.

B and C designate television, VTR and video disc player, respectively. Also, 3 is the first
A key matrix corresponding to each key on the operation panel shown in the figure,
Reference numeral 4 denotes a 1-drive circuit for driving the transmitting light emitting diode 6 by 1 with the output of the transmitting IC 4. Reference numeral 7 denotes a piezoelectric buzzer, which is driven at different frequencies to emit sound in VTR mode and video disc player mode.

In the above configuration, when changeover switch 1 is changed to TV mode (the state shown in the figure), the connection between changeover switch 1 and changeover switch 2 is opened, and the device identification code can be changed and various keys can be pressed regardless of changeover switch 2. A function is inhibited or switched. For example, when switching between the mute key and the stop key, the mute key of the key matrix 3 is connected to the transmission IC 4 in the chimp mode by the contact in the changeover switch 1, and the stop key is not connected. Therefore, only the mute key becomes operable, and the stop key does not operate even if pressed.

Next, when the selector switch 1 is switched to the VTRt or video disc player mode, conduction is established between the selector switch 1 and the selector switch 2, and switching between the mute key and the stop key is performed. Then, with the changeover switch 2, V
When the TR mode or video disc player mode is selected, multiple interlocking contacts in the selector switch 2 change the device identification code, change the tone of the piezoelectric buzzer 7, and inhibit various key functions in the switch 3. etc., to enter VTR mode or video disc player mode.

In this way, by switching the changeover switches 1 and 2, the connection between the key matrix 3 and the transmitting IC 4 is partially opened or shut off, and the respective modes of the television, VTR, and video disc player are switched. After that,
By performing key operations in key matrix 3,
As shown in Fig. 3, a signal consisting of a series of pulses corresponding to the data code of the operated key is output from the transmitting IC 4 after the /gurus which corresponds to a different device identification code for each mode, and this output signal The signal is transmitted from the transmitting light emitting diode 6 via the 1 drive circuit 5. In this way, it is possible to control a television, VTR, and video disc player with one remote control transmitter.

Although the embodiments have been described above in which a television, a VTR, and a bidet 7 mask player are used as the three types of equipment, it is obvious that the present invention can be applied to equipment other than these three types of equipment. be.

(Effects of the Invention) As explained above, the present invention provides a first and a second changeover switch, and by operating these changeover switches in combination, three types of equipment can be changed over with one remote control device. It has great practical value, as it allows for easy control and ease of operation for the user.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an operation unit of an embodiment of the present invention, FIG. 2 is a circuit diagram of an embodiment of the present invention, and FIG. 3 is a diagram showing a device identification code in an embodiment of the present invention. It is a diagram. 1.2... Selector switch, 3... Key matrix,
4... IC for transmission, 5... Drive circuit, 6... Light emitting diode for transmission.

Claims (2)

[Claims] (1) A first changeover switch that switches between the control mode of device A and the control mode of device B-1: or device C;
and a second changeover switch for switching between the control mode of the device A and the control mode of the device C, the device A being operated by a combination of the first and second changeover switches. A remote control transmitter that can switch and control three types of devices, device B and device C. (2) When the first changeover switch is switched to the device A side, the device identification code is sent to the device regardless of the second switch, and the control mode of device A is switched to the device A side. When the changeover switch is switched to the device B or device C side, a device identification code for device B or device C is transmitted according to the selection by the second changeover switch, and the control mode is set to device B or device C. A remote control transmitter according to claim (1).