JP2005101689A - Communication terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication terminal capable of turning off power of an apparatus in a system even from one's destination. <P>SOLUTION: In a facsimile 103, a decision is made on whether DTMF is detected or not in call termination (steps ST1, ST2) and if the DTMF is detected, a decision is made on whether a transmitted number matches the number of any personal computer registered on the PC registration table 5a of an RAM 5 (step ST3). If the numbers match each other, a decision is made on whether power of that personal computer is turned on or not (steps ST4, ST5). Power on/off state is replied to the source (step ST6) and if power is turned on, power of that personal computer is turned off (steps ST7, ST8). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a communication terminal apparatus such as a facsimile machine, a multi-function machine having multiple functions such as a facsimile function and a copying function.

In general, a facsimile machine or a multi-function machine connected to a public telephone line is connected to several personal computers (PCs) and other devices via a LAN (Local Area Network) to form a system ( For example, see Patent Document 1).
JP-A-10-98776

  In the above-described system, it is possible to turn off the power of one personal computer from another personal computer within the LAN, for example. However, since it is a closed world on the LAN, the power supply in the system cannot be disconnected from the outside, and there is a problem that it is very inconvenient if the user forgets to turn off the power and goes out.

  The present invention has been made paying attention to the above problems, and an object of the present invention is to provide a communication terminal device that can turn off the power of the devices in the system even when away from home.

  A communication terminal device according to the present invention includes a transmission / reception unit connected to a public line, an input / output unit for connection to an external processing device via a network, and an external processing device for storing the number of the connected external processing device And a control unit for outputting a signal for turning off the power of the external processing device by telephone from a public line.

  In this communication terminal device, when there is a telephone with a number previously registered in the storage unit from the outside via a public line, a command to turn off the power is sent to the external processing device (PC) corresponding to the registered number. The power of the external processing device can be cut off.

  In the communication terminal device according to the present invention, it is also possible to respond to a telephone call from the public line and to answer the connection / disconnection of the power supply of the external processing device.

  Further, in the communication terminal device according to the present invention, the number storage unit stores a number of a plurality of external processing devices, and depending on the telephone content from the public line, either an individual external processing device or all external processing devices It may be possible to select whether to turn off the power of the apparatus.

  According to the present invention, the transmission / reception unit connected to the public line, the input / output unit for connecting to the external processing device via the network, and the number of the external processing device that stores the number of the connected external processing device Because it has a storage unit and a control unit that outputs a signal to turn off the power of the external processing device by telephone from a public line, even if you go out without turning off the computer, Since the power is turned off, waste of electricity costs can be prevented and the safety of the device can be ensured.

  Hereinafter, the present invention will be described in more detail with reference to embodiments. FIG. 1 is a block diagram showing the configuration of a communication system in which the present invention is implemented. In this system, a facsimile apparatus 103 is connected to a public telephone line network 105 and is connected to another external processing apparatus such as personal computers (PCs) 101 and 102 via a LAN 104. Normally, in this system, image data read or received by the facsimile apparatus 103 is transferred to the personal computers 101, 102, etc., or image data is printed or transmitted by facsimile in response to a request from the personal computers 101, 102. it can. Further, the facsimile apparatus 103 receives a telephone call from the public telephone line network 105, sends a power connection command to the personal computer in which the personal computer number is registered in advance in the facsimile apparatus 103 itself, and turns on the power of the personal computer. Can be cut.

  The facsimile machine 103 is configured as a multi-function machine that serves both as a copying machine and a facsimile machine, and a schematic configuration is shown in FIG. This color multi-function peripheral has a function of performing facsimile communication of a color image in accordance with a facsimile communication procedure specified by the ITU-T recommendation.

  In FIG. 2, a CPU (central processing unit) 1 as a main control unit has a function of comprehensively controlling each unit constituting the device.

  The CPU 1 includes an NCU (Network Control Unit) 2, MODEM 3, ROM 4, RAM 5, image memory 6, display unit 7, operation unit 8, image reading unit 9, image recording unit 10, CODEC (encoding / coding). Decoder: Coder and Decoder) 11 and LAN I / F 12 are connected via a bus 13.

  The NCU 2 is controlled by the CPU 1 to control connection with a telephone line network (PSTN) 105 which is a communication line. Further, the NCU 2 has a function of sending a dial pulse corresponding to a telephone number (including a FAX number) of a communication partner and a function of detecting an incoming call. MODEM3 is an ITU (International Telecommunication Union) -T recommendation T.264. 30, T.M. 4 according to the facsimile transmission control procedure (facsimile communication procedure) according to FIG. 17, V. 27ter, V.I. The transmission data is modulated and the received data is demodulated in accordance with 29. MODEM3 is a V. 8, V. V. using 34. It is also applicable to 34 FAX. Specifically, the MODEM 3 has a function of modulating transmission data, which is a digital signal, into an analog voice signal so as to be transmitted to the telephone line network 105 via the NCU 2. The MODEM 3 has a function of demodulating an analog voice signal received from the telephone line network 105 via the NCU 2 into a digital signal.

  The ROM 4 stores a program for controlling the operation of the entire apparatus. The RAM 5 stores data necessary for control by the CPU 1 and data that needs to be temporarily stored during the control operation. The RAM 5 includes a PC registration table 5a. In this PC registration table 5a, numbers of a plurality of PCs that receive a call from outside and turn off the power are registered. The image memory 6 stores the image data read by the image reading unit 9 in a compressed state. Further, the image memory 6 stores image data received from an external device such as a personal computer via a network (LAN) or image data read from a recording medium in a compressed state (JPEG or the like).

  The display unit 7 displays icons, key buttons, message contents necessary for data transmission / reception, a telephone number and a FAX number input by the operation of the operation unit 8, and the like. As the display unit 7, a CRT display or an LCD (liquid crystal display device) is used. The operation unit 8 includes a numeric keypad, a one-touch key, a registration key, a start key, and an operation mode switching key. The numeric keypad is for inputting a telephone number or a FAX number. The one-touch key is used to call a destination telephone number or FAX number with one touch. The registration key is used for abbreviated registration of the telephone number or FAX number of the other party. The start key is used to instruct the start of facsimile communication or copy operation. The operation mode switching key is used to switch modes for a plurality of operation modes such as FAX mode, copy mode, and scanner mode.

  The image reading unit 9 optically scans and reads image data of a document when performing facsimile transmission or copying. The image reading unit 9 can also read a color image. In the case of color reading, the image reading unit 9 optically scans a document image and obtains RGB three-color separation signals. The image recording unit 10 includes an electrophotographic printer, and records received image data and image data of a document read by the image reading unit 9 in a copying operation on a recording sheet. This image recording unit 10 uses CMYK four-color recording agents (toners), and in addition to monochrome printing using only K (black component) recording agents, color using all CMYK four-color recording agents. Printing is also possible.

  The CODEC 11 encodes (encodes) the read image data according to the MH, MR, MMR method or the like to transmit or store the image data. Further, the CODEC 11 decodes (decodes) the image data received in the compression-coded state for recording by the image recording unit 10. Further, the CODEC 11 encodes color image data obtained by color reading by the image reading unit 9 by the JPEG method, and records the color image data received in a state encoded by the JPEG method by the image recording unit 10. To decrypt. The LAN I / F 12 is used to exchange data with an external device via a LAN (local area network), and is connected to an external device such as a PC (personal computer) via the LAN I / F 12. For example, image data to be copied can be received from an external device via the LAN I / F 12.

  Next, the processing operation when the personal computer is turned off in this facsimile apparatus will be described with reference to the flowchart shown in FIG.

  When this processing routine is entered, first, incoming processing is performed in step ST1. Then, it transfers to step ST2 and it is determined whether DTMF was detected. If no DTMF (push tone) is detected, the process returns. On the other hand, if DTMF is detected, the process proceeds to step ST3. This push tone includes either a number indicating an individual personal computer or a number indicating all personal computers.

  In step ST3, it is determined whether or not the number sent through the public telephone line 105 matches one of the power-off numbers stored in the PC table 5a. If they do not match, return. On the other hand, if there is an identical number, the process proceeds to step ST4. In step ST4, a signal for inquiring whether or not the personal computer with that number is turned on is transmitted to that PC. Next, in step ST5, a power ON / OFF confirmation signal is received from the personal computer. Next, in step ST6, the telephone line network 105 returns a power ON / OFF state to the caller telephone. Then, the process proceeds to step ST7. In step ST7, it is determined whether or not the power of the personal computer is ON. If the power is not ON, there is no need to send a command to turn OFF, and the routine returns. On the other hand, if the personal computer with that number is turned on, the process proceeds to step ST8. In step ST8, a power OFF command is sent to the personal computer with that number. In response to the power-off command, the personal computer turns off its power. When the number included in the push tone indicates all the personal computers, all the personal computers turn off the power here.

It is a block diagram which shows the apparatus structure of the communication system with which this invention is implemented. It is a block diagram which shows the structure of the facsimile apparatus of the communication system. FIG. 6 is a flowchart for explaining a processing operation when the external processing apparatus is turned off in the facsimile apparatus.

Explanation of symbols

1 Main control unit (CPU)
2 NCU
3 MODEM
4 ROM
5 RAM
5a PC table 6 Image memory 7 Display unit 8 Operation unit 9 Image reading unit 10 Image recording unit 11 CODEC
12 LAN I / F
13 Bus 101, 102 PC 103 Facsimile 104 LAN
105 Telephone network

Claims (3)

  A transmission / reception unit connected to the public line; an input / output unit for connecting to the external processing device via the network; a number storage unit of the external processing device for storing the number of the connected external processing device; And a control unit that outputs a signal to turn off the power of the external processing device by telephone.   2. The communication terminal device according to claim 1, wherein the communication terminal device can respond to a telephone call from the public line and can return a connection / disconnection of the power supply of the external processing device.   The number storage unit stores the numbers of a plurality of external processing devices, and selects whether to turn off the power of individual external processing devices or all external processing devices according to the telephone contents from the public line. The communication terminal apparatus according to claim 1 or 2, characterized by the above.

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