JP3290260B2 - Remote control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control system capable of reliably performing a remote operation by a remote control transmitter.

[0002]

2. Description of the Related Art As devices operated by a remote control signal increase, the format of a remote control signal that enables any device to be operated by a single remote control transmitter (hereinafter simply referred to as a remote control) is standardized by each company. ing.

This format is composed of a component code (8 bits) for identifying each device and an operation instruction code (8 bits).

At the time of actual transmission, one instruction is composed of a leader code, a component code, and its inverted data, and an instruction code and its inverted data, which indicate the start of transmission. On the receiving side, since both the component code and the instruction code are compared with all-bit inverted data, the system is extremely resistant to malfunctions caused by other remote controllers or external light.

FIG. 1 shows an example of a case where two devices are remotely controlled by a remote control signal standardized by a unique format. It is designed to be remotely controlled.

However, in such a form, since the two devices 2 and 3 receive the common remote control signal and operate at the same time, the light receiving port 4 of one of the devices 2 and 3 is blocked. Has been processed. Further, although the remote controller 1 can be driven by the built-in battery, if the built-in battery runs out, the remote control 1 cannot be operated.

From such a situation, a configuration shown in FIG. 2 can be considered. That is, the remote control 1 and the device 2 are wired by a cord 5 connected to a remote control installation stand (not shown). In this case, while the remote control 1 is installed on the remote control installation table, the driving power of the remote control 1 is obtained from the remote control installation table side, so that the consumption of the internal power supply of the remote control 1 can be suppressed.

However, even in such a case, the device 2 receives the remote control signal from the remote controller 1 via the code 5 and the device 3 receives the remote control signal via the light receiving port 4. There is a problem that both devices 2 and 3 operate simultaneously by a common remote control signal.

[0009]

As described above, in the case of wireless or wired remote control by the above-mentioned conventional remote controller 1, both devices 2 and 3 operate simultaneously by a common remote control signal. There was a problem in terms of gender.

The present invention has been made in view of such circumstances, and has as its object to provide a remote control system capable of improving operability.

[0011] In order to achieve the above object, the remote control system of the present invention comprises at least a plurality of devices.
Can be connected to one line, and the optical transmitter
A remote controller that enables remote control of each of a plurality of devices
The troll transmitter and the remote control transmitter
That one of the plurality of devices is line-connected
Detecting means for detecting, the remote control
When the line connection of the transmitter is detected,
Stop the optical transmission operation and remote control by the line connection.
Control signal and the line connection
Is removed, the equipment connected to the line
Stop receiving the remote control signal
The optical transmission to a device other than the device connected to the line
Enable remote control signal transmission
It is characterized by the following.

[0012]

According to the remote control system of the present invention,
Remote control transmitter connects to any device via line
The optical transmission at the remote control transmitter
The optical transmission operation of the communication unit stops. Therefore, wireless
Transmission of the remote control signal is disabled.
Remote control from mote control transmitter
The signal will only be sent to line-connected equipment.
You. And if this line connection is disconnected,
Remote control on line-connected equipment
By stopping light signal reception, this line connection
Disable wireless transmission to the device you were using. This
To a device other than the one originally connected to the line.
Enables only wireless transmission of remote control signals
I do.

Therefore, the disadvantage that both devices operate at the same time by the common remote control signal as in the related art is eliminated.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 3 shows an embodiment of the remote control system according to the present invention. As shown in FIG.
0 is provided with terminals 11a to 11d.

The remote controller 20 which is detachable from the remote controller installation table 10 has terminals 1 on the remote controller installation table 10 side.
Terminals 21a to 21d connected to 1a to 11d are provided. Here, the terminals 11a and 21a are terminals for transmitting a command signal, and the terminals 11b and 21b are terminals to which power is supplied from the remote control installation table 10 side. The terminals 11c, 21c, 11d, and 21d are terminals for detecting that the remote controller 20 has been installed on the remote controller installation base 10.

CPU provided inside remote controller 20
22, a wired output port 23a connected to the terminal 21a and a connection sense port 2 connected to the terminal 21b.
3b, a power input port 23c connected to the terminal 21b,
LED for controlling the light emission operation of LED 25
Wireless output port 23 connected to driver 24
d, a key input port 23e connected to the key group 26 is provided.

The power input port 23c is provided with a built-in battery 27 and a switch 28 for turning on and off the power from the built-in battery 27. The switch 28 is mechanically turned off when the remote control 20 is installed on the remote control installation base 10.

Further, the remote controller 20 is provided with an invalid key (not shown) for stopping the reception of a remote control signal from the light receiving section 32 to a device 30 described later, which is wired via the remote control installation base 10. I have.

FIG. 4 shows an internal configuration of a device remotely controlled by a remote control signal from the remote control 20. As shown in the figure, the device 30 is provided with a microcomputer 31. The microcomputer 31 has a remote control installation table 1
The wired output from the 0 side, the power supply, and the detachment sense of the remote controller 20 are taken in.

The microcomputer 31 receives a remote control signal from the remote controller 20 and an instruction signal from the key group 33, which are received by the light receiving section 32. The operation of the tape deck 34 and the tuner 35 is controlled based on a signal or an instruction signal.

The audio signals from the tape deck 34 and the tuner 35 are converted into digital signals by an A / D converter 36, and then output to a digital amplifier (not shown) via an out terminal 39.

When a digital audio signal from another device is input to the IN terminal 40, the digital audio signal is output from the OUT terminal 39 to the digital amplifier via the changeover switch 38.

FIG. 5 shows the internal structure of another device which is remotely controlled by a remote control signal from the remote control 20. As shown in FIG.
1 is provided. The microcomputer 51 receives a remote control signal received by the light receiving unit 52.

The microcomputer 51 receives the CD 53 and the tuner 5 based on the remote control signal received through the light receiving section 52.
4 is controlled. Analog audio signals from the CD 53 and the tuner 54 are output to a speaker (not shown) through an out terminal 55.

Next, the operation of the remote control system having such a configuration will be described.

FIG. 6 is a flowchart for explaining the operation flow of the remote controller 20. First, it is determined whether or not the connection is wired (step 601). That is, as shown in FIG. 3, when the remote controller 20 is installed on the remote controller installation base 10, the CPU connects to the terminals 11b and 21b.
22, the connection sense port 23b of the remote controller 22 is pulled up, so that the CPU 22
0 is detected.

When any of the keys 26 is operated in the wired connection state (step 6).
02), a remote control signal corresponding to the key is output to the microcomputer 31 of the device 30 (step 603).

On the other hand, when it is determined in step (601) that the connection is not a wired connection, and when any operation of the key group 26 is determined (step 604), the CPU 22 transmits the information via the LED driver 24 via the LED driver 24. L
The light emission operation of the ED 25 is controlled (step 60).
5).

On the other hand, at step 604, the key group 26
If any one of the keys is not operated, the clock oscillation of the CPU 22 of the remote controller 20 stops and the mode shifts to the current consumption mode (step 606).

FIG. 7 is a flowchart for explaining the operation flow of the device 30 shown in FIG. 4. First, the microcomputer 31 of the device 30 determines whether or not a wired remote control signal has been input (step 701). If you determine that
It is determined whether there is a key input for instructing validity / invalidity of the wireless remote controller (step 702).

If there is a key input for instructing validity / invalidity, validity / invalidity switching processing is performed on the remote controller 20 (step 703). On the other hand, (Step 7
If there is no key input for instructing validity / invalidity of the wireless remote controller in 02), key processing is performed (step 704). The key processing here is to process a command signal from the remote controller 20 side.

On the other hand, if it is determined in step 701 that no wired remote control signal has been input, it is determined whether a wireless remote control signal has been input (step 7).
05). If it is determined that the wireless remote control signal is input, it is determined whether the wireless remote control is in the valid mode. If it is determined that the wireless remote control is in the valid mode, key processing is performed in the same manner as described above (steps 706 and 70).
7).

As described above, in the present embodiment, when the CPU 22 of the remote controller 20 detects the wired connection by installing the remote controller 20 on the remote controller installation base 10, the light emitting operation of the LED 25 via the LED driver 24 is stopped. , The remote control signal is transmitted to the device 30 through the wired connection. On the other hand, when the remote controller 20 is detached from the remote control installation stand 10, the remote control signal on the device 30 is stopped after the reception of the remote control signal on the device 30 is stopped. Instead, only the device 50 side receives light.

Therefore, even when there are two devices 30 and 50 remotely controlled by one remote controller 20, remote control of the device 30 is possible in the case of wired connection, and remote control of the device 50 in the case of wireless. Since the operation is enabled, the disadvantage that both devices operate simultaneously by a common remote control signal as in the related art is eliminated, so that the operability can be improved.

[0035]

As described above, according to the remote control system of the present invention, the remote control
When the transmitter is connected to any device, the remote
Optical transmission operation of the optical transmitter in the control transmitter is stopped.
To stop remote control from the remote control transmitter.
Troll signals can only be sent to line-connected equipment.
And And if this line connection is disconnected
Wireless transmission to this line-connected device.
Device other than the device connected to the line
Only wireless transmission of remote control signals to
Make it possible. Therefore, unlike the related art, a problem that both devices operate simultaneously by a common remote control signal is eliminated, so that operability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment in which two devices are remotely controlled by a remote control signal standardized by a conventional unique format.

FIG. 2 is a perspective view showing another embodiment which is taken to solve the problem of FIG.

FIG. 3 is a diagram showing one embodiment of a remote control system of the present invention.

FIG. 4 is a diagram showing an internal configuration of a device remotely controlled by the remote controller of FIG. 3;

5 is a diagram showing an internal configuration of another device remotely controlled by the remote controller of FIG. 3;

FIG. 6 is a flowchart for explaining the operation of the remote controller of FIG. 3;

FIG. 7 is a flowchart for explaining the operation of the device in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Remote control installation stand 20 Remote control 22 CPU 25 LED 30 Equipment 31 Microcomputer 32 Light-receiving part 34 Tape deck 35 Tuner 51 Microcomputer 52 Light-receiving part 53 CD54 Tuner

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuhiro Nakano 25-1, Nishimachi, Kawada-shi, Kawagoe City, Saitama Prefecture Inside the Pioneer Corporation Kawagoe Plant (72) Noriyoshi Funaki 25-1, Nishimachi, Yamada-shi, Kawagoe City, Saitama Prefecture Pioneer Corporation Kawagoe Factory (72) Inventor Kawaichi Saki ▼ 25-1, Nishimachi, Yamada-shi, Kawagoe-shi, Saitama Prefecture Pioneer Corporation Kawagoe Factory (56) References JP-A-4-202918 (JP, A) Kaisho 56-15936 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H04Q 9/00-9/16

Claims (1)

(57) [Claims] 1. A line connection to at least one of a plurality of devices.
And each of the plurality of devices can be connected by an optical transmission unit.
Remote control transmitter that enables remote control of each
And the remote control transmitter is
Detecting means for detecting that one of them is connected to the line;
The provided, line connection detection of the remote control transmitter
When stopped, the optical transmission operation of the optical transmission unit is stopped, the
Sends remote control signal via line connection
And if the line connection is disconnected,
Remote control of devices that were connected in
Stop receiving signals, and connect the line-connected device
Remote control by the optical transmitter to other devices
A remote control system characterized in that the remote control system can transmit a remote control signal .