JPH01252056A - Remote operation control device by public line - Google Patents

Abstract

PURPOSE:To select plural devices, which are connected to one line, by judging whether the number of calling tones arrives at the number of stored calling tone and changing the number of stored calling tones according to a command signal, which is transmitted after incoming. CONSTITUTION:When the program of a processor 6 is started, whether the tone is a calling tone or not is judged by a calling tone detecting part 5. In the case of the calling tone, when the number of calling tones arrives at the specified number, the line is closed and a timer is set. In the case of a calling tone changing command until the incoming, the data are stored and after that, the line is disconnected. According to the stored data, the specified number is changed. For example, when the number of calling tones of an automatic answering telephone set 3 is set be three times and the number of calling tones of a remote operation control device 11 is set to four times from a condition, in which the number of the device 11 is set to be twice, according to the stored data, in the case that a calling tone next arrives at an input terminal 1 and an input terminal 2 and the number of calling tones arrives at the three times, the automatic answering telephone set 3 is changed to be incoming.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Field of Industrial Application The present invention relates to a remote control device using a public line that allows remote control using a public line.

(2) Prior Art Conventionally, remote control has been carried out using public telephone lines. For example, it is known that a telephone answering machine transmits a predetermined code signal using a public telephone line to record the contents of an answering machine when the user is away from home.

Devices that can be remotely controlled using public telephone lines have recently come to be used not only as the above-mentioned answering machines but also as facsimile machines, VTRs, and the like. Therefore, there are cases in which a plurality of devices that can be remotely controlled using such public lines are connected to one line.

(3) Problems to be Solved by the Invention In a device that can be remotely controlled using a public telephone line, the device is set to receive a call depending on the number of times the device rings. Many devices can set the number of rings to one or two types (for example, 2 and 4 times), but multiple devices that can be remotely controlled using a public line are connected to one line. If the device is used as a device, the device that is set to have the least number of rings will receive calls preferentially.

Therefore, there is a problem in that a device that is set to have a large number of ringtones cannot be remotely controlled even though it has a function.

(4) Means to solve the problem.

The present invention has been made in view of the above points, and it is possible to change the number of rings via a public telephone line so that a plurality of devices connected to one telephone line can be selected by remote control. and in order to achieve this purpose,
A memory means for storing the number of ring tones, a determining means for determining whether the number of ring tones stored in the memory means has been reached, and a number of ring tones stored in the memory means in accordance with a command signal transmitted after receiving a call. and a changing means for changing the value, and is configured to enter an incoming call operation according to the judgment of the judgment means.

(5) Effect In this configuration, the changing means changes the number of ringing tones stored in the memory means in accordance with a command signal transmitted after receiving a call, thereby acting to change the number of ringing tones.

(6) Examples Hereinafter, the present invention will be explained based on the drawings.

FIG. 1 is a block diagram showing an embodiment of a remote operation control device using a public line according to the present invention.

In FIG. 1, input terminal 1 and input terminal 2 are connected to a public line. Input terminal 1 and input terminal 2 are connected to answering machine 3 and remote control device 11 . The answering machine 3 and the remote control device 11 are
This is an example of a device that can be remotely controlled using a public line, and a remote control device 11 is installed inside a VTR or the like to be remotely controlled.

For example, if the number of rings of the answering machine 3 is set to three times, and the number of rings of the remote control device 11 is set to two times, and the changes described below cannot be made, the number of rings is set to a small number. The remote operation control device 11 receives the call preferentially, and the answering machine R3 cannot be remotely operated.

Inside the remote operating word 1i1j device 11, the input terminal 1 is connected to the ringing tone detection section 5, and the input terminal 2 is connected to either the ringing tone detection section 5 or the transformer 8 via the changeover switch 4. The ring tone is detected by the ring tone detection unit 5.
The command to the processor 6 is sent as an audio signal from the transformer 8 to the transmitting/receiving section 9.
is supplied to the processor 6 via.

The processor 6 operates as shown in the flowchart in FIG. 2, and whether or not to perform the operation is selected by operating the switch 7. The processor 6 operates as shown in the flowchart described below, outputs an output signal to the control output section 10, and controls the VTR or the like to be remotely operated via the control output section 10. V
Control of the TR includes, for example, turning the power on and off, changing the time of recording when the user is away, and the like.

In FIG. 2, when the program of the processor 6 is started, it is first determined in step 21 whether or not there is a ringing tone. If there is a call, it is determined in step 22 whether or not the number of calls has reached a predetermined number, and the process waits until the number of calls reaches the predetermined number. When the predetermined number of times is reached, the line is opened in step 23 and a timer is set (step 24).

Thereafter, in step 25, the button signal (P
The human input of the B-time signal is waited until the timer set in step 24 is reached (steps 25 and 26).

When a pushbutton signal is input, it is determined in step 28 whether or not it is a command to change the ring tone until an incoming call is received. If it is a command to change the ringing tone for incoming calls, the data is stored (step 29), the line is disconnected (step 27), and the process returns to step 21.

According to the data stored in step 29, the prescribed number of times determined in step 22 is changed. For example, from a state where the number of rings of the answering machine 3 is set to three times and the number of rings of the remote operation control device 11 is set to two times, the number of rings of the remote operation control device If is stored in step 29. If the number of calls is changed to 4 according to the data given, the next time the ringing sound reaches input terminal 1 and input terminal 2, when the number of calls reaches 3, instead of the remote control device 11 The answering machine 3 is changed to receive the call.

If it is determined in step 28 that there is no command to change the ring tone until the incoming call is received, step 3 waits for the password to match and sets a timer (step 31). If the passwords do not match in step 3o, the process returns to step 25.

Thereafter, in step 32, the control code is inputted until the timer set in step 31 reaches the time (steps 32 and 33). If the control code is available, an output signal is output to the control output section 1o in step 34 to control the VTR, and then the process returns to step 31 to wait for the next control code to be input. When the timer set in step 31 is reached, disconnect the line and then (
Step 27), return to step 21.

(7) Effects of the Invention As explained above, the present invention includes a memory means for storing the number of callouts, a determining means for determining whether the number of callouts stored in the memory means has been reached,
A change means for changing the number of calls stored in the memory means in accordance with a command signal transmitted after receiving a call is provided, and the apparatus is configured to enter a call receiving operation according to the judgment of the judgment means.

In this configuration, the changing means operates to change the number of callouts by changing the number of callbacks stored in the memory means in accordance with a command signal transmitted after receiving a call.

This makes it possible to change the number of calls made via a public line, and to select a plurality of devices connected to one line by remote control.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of a remote operation control device using a public line according to the present invention, and FIG. 2 is a flowchart. l ... Input terminal 2 ... Input terminal 3 ... Answering machine 4 ... Changeover switch 5 ... Ringing detection section 6 ... Processor 7 ... Switch 8 ...Transmission/reception section 10...Control output section 11 ...Remote operation control device patent applicant NEC Home Electronics Co., Ltd. Agent Patent attorney Yama 1) Takeki

Claims (1)

[Claims] a memory means for storing the number of ring tones; a determining means for determining whether the number of ring tones stored in the memory means has been reached; and a call stored in the memory means in accordance with a command signal transmitted after an incoming call. 1. A remote control device using a public line, comprising: changing means for changing the number of tones, and entering an incoming call operation according to the judgment of the judging means.