JPS5831655A - Reception and storage system of facimile signal - Google Patents

Abstract

PURPOSE:To inform a failure to a facsimile device, by generating the failure to a message post-procedure, if the failure detected when a storage exchanger receives and stores a picture signal from a facsimile device. CONSTITUTION:A call set procedure is started from a facsimile device and a picture signal is transferred and stored in an storage exchanger 4. At the storage of the picture signal, if a failure such as unmatched reception speed and defective picture signal write takes place, a facsimile control section 6 stops the storage of the picture signal and abolishes the reception picture signal afterward, and waits for a message post-procedure. The storage exchanger 4 enters the message post-procedure through the reception of a message end signal, and the operation is finished by not transmitting a message confirming signal to the facsimile device, the end of failure is informed to a storage control section 7 to restore a communication call and picture signals already received and stored are thrown away.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a facsimile storage and forwarding system in which a storage and forwarding device detects an abnormality in operation when receiving and storing image signals from a facsimile device.

This concerns the method of notifying the location.

A conventional signaling system for facsimile communication calls between analog facsimile machines for telephone switching networks is shown in FIG. 1st
In the figure, 1 is a calling side analog facsimile machine, 2 is a called side analog facsimile machine, 3 is an exchange,
The off-hook dial signal a1 to the on-hook l of the analog facsimile machine 1 constitute one facsimile communication call, and the called station identification signal (or procedure end signal jl or facsimile procedure) is added to the facsimile procedure by interposing the message image signal. Call station identification signal Skara reception preparation confirmation signal tl
The procedure is divided into a pre-message procedure at , and a post-message procedure from the message end signal to the procedure end signal j.

A conventional embodiment will be explained based on FIG. First, off-hook dial signal a1 of analog facsimile device 1
The analog facsimile machine 2 on the called side is called through the exchange 3, and the off-hook a2 of the analog facsimile machine 2 on the called side enables communication between the two analog facsimile machines 1 and 2. Next, when the communication buttons of both analog facsimile machines 1 and 2 are turned on, a pre-message procedure is started, followed by image signal transfer and a post-message procedure. In this case, the message confirmation signal i in the post-message procedure indicates the completion of the image signal transfer/recording operation, and is sent regardless of the communicated image quality, and the communication image quality is determined by the operator and notified at the time of the call. be done.

When transferring image signals between analog facsimile machines for telephone exchange networks, the calling and called analog facsimile machines cannot automatically detect malfunctions and are only notified by the operator. .

Therefore, a big problem arises when analog facsimile machines are housed in a store-and-forward system and image signals are transferred between the analog facsimile machines. That is, in the store-and-forward system, the image signal transferred from the calling side analog facsimile device is temporarily stored, and then the image signal is separately transferred to the called side analog facsimile device.
There is no way to notify the analog facsimile device if an abnormality occurs during the transfer of image signals between the analog facsimile device and the storage/exchange device, such as a mismatch in operating speed, a defective image signal writing operation, or insufficient image signal writing area. It has its drawbacks.

The present invention solves one abnormality when the storage/exchange device receives and stores image signals from the *action device by generating an abnormality in the post-message procedure after the sending and sending operations of the facsimile device are completed. The purpose of this is to notify the parties concerned, and will be explained in detail below.

FIG. 2 shows an overall configuration diagram of a facsimile storage and forwarding system according to an embodiment of the present invention. In FIG. 2, 1 and 2 are analog facsimile devices in the telephone exchange, 3 is a private branch exchange, and 4 is a store-and-forward device.Facsimile communication calls from analog facsimile device 1 are stored in store-and-forward device 4 and sent to a designated destination. Assume that the data is sent to a certain analog facsimile machine 2! FIG. 3 shows a detailed block diagram of the storage and forwarding device 4 in FIG. 2, in which 5 is a switch/interface section, 6 is a facsimile control section which is installed in plural numbers depending on the type of facsimile device to be communicated with, and 8 is a magnetic disk device. , 7 is a main control section of the storage and forwarding device 4, and is a storage control section that performs call handling for facsimile communication calls and controls the magnetic disk device 8.

The exchange/interface section 5 executes call setup and call recovery procedures for facsimile communication calls under the control of the storage control section 7, and the facsimile control section 6 executes pre-message procedures and post-message procedures under the control of the storage control section 7. It performs image signal transmission/reception operations, analog/digital conversion for image signal accumulation, encoding/compression, decoding/expansion processing, and transfer control of accumulated information with the accumulation control section 7.

Next, a case in which an image signal is transmitted from the analog facsimile device 1 to the calling analog facsimile device 2 will be outlined using FIGS. 2 and 3. In response to a call from the analog facsimile device 1, the private branch exchange 3 sets up a line between the storage and forwarding device 4 and the analog 7-axis device 1.

Next, in the storage and exchange device 4, the storage control section 7
A facsimile communication call from the analog facsimile machine 1 is detected via the interface section 5, a call setting procedure with the analog facsimile machine 1 is performed via the exchange/interface section 5, and the analog facsimile machine 1
The 7 axis and υ control unit 6 corresponding to the model are activated.

After executing the post-message procedure, the facsimile control section 6 starts receiving and accumulating image signals through blood flow operations with the accumulation control section 7. Communication of the image signals stored on the magnetic disk 8 is performed by separately setting up a line between the analog facsimile device 2 and the storage/exchange device 4 using the private branch exchange 3.

FIG. 4 shows a signal system for receiving and storing facsimile signals between the analog facsimile device 1, the private branch exchange 3, and the storage and forwarding device 4 of the present embodiment shown in FIG.
The numbers 8.4 correspond to FIG. 2, respectively. In FIG. 4, the call setting procedure is from the off-hook dial signal a to the activation signal mi, the pre-message procedure is from the group identification signal C to the reception preparation confirmation signal f, and the post-message procedure is from the message end signal to on-hook l. Analog file□
An off-hook dialing signal from the analog facsimile device 1 to the private branch exchange 3 starts the call setup procedure 1, followed by a pre-message procedure for turning on the communication button of the analog facsimile device 1, after which the image signal is transmitted from the analog facsimile device 1 to the storage and forwarding device.・Transferred to storage 4 and stored. If an abnormality such as a receiving operation speed mismatch, a defective image signal writing operation, or an insufficient image signal writing area occurs during the image signal accumulation operation, the facsimile control unit 6 stops the image signal accumulation operation, and the facsimile control unit 6 stops the image signal accumulation operation. The image signal is discarded and the process waits after the message is sent. On the other hand, the analog facsimile machine J continues to transfer the image signal to the storage/exchange device 4 regardless of the abnormality,
At the end of the transfer, a message end signal is sent to the storage/exchange device 4. The storage/forwarding device 4 waits for a message end signal in case of the abnormality.

After receiving the message end signal, the system enters the post-message procedure. However, due to the abnormality, the storage and forwarding device 4 ends its operation without transmitting the message confirmation signal l to the analog facsimile device 1, and notifies the storage control section 7 of the abnormal end. Next, the accumulation control unit 2 is the exchanger inter? The disconnection signal n is transmitted through the ace section 5 to the private branch exchange 3.
1. Restoring (terminating) the sent facsimile communication call. Discard image signals that have already been received and stored. Since the analog facsimile device 1 cannot receive the message confirmation signal i which is a response to the end of message/signal, it terminates its operation as a communication error and can also know that there is a malfunction in the image signal accumulation operation.

Although the embodiments of the present invention have been described with respect to the case where an analog facsimile machine is accommodated in a store-and-forward system, the same applies to a case where a digitized facsimile machine is housed. D) In the case of multiple facsimile machines, if an abnormality as described above occurs, a signal is provided to notify the facsimile machine of the abnormality, but the same method as explained in this embodiment, that is, message confirmation The notification can also be made by not returning a signal corresponding to the signal l from the storage and forwarding device 4 to the facsimile device 1 when an abnormality occurs.

In the present invention, if an abnormality occurs when the storage/forwarding device 4 receives and stores image signals from the facsimile device 1, the facsimile communication call is terminated without returning a response signal in the post-message procedure after the image signal transfer is completed. , the facsimile machine side can detect an image signal storage malfunction by performing 7 aximum motions, and requires special means to notify the facsimile machine of the storage malfunction, modification of the facsimile machine, etc. There are advantages to not doing so.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the conventional signaling system of facsimile communication calls between analog facsimile devices for telephone switching networks, FIG. 2 is an overall configuration diagram of a facsimile store-and-forward system according to an embodiment of the present invention, and FIG. 2 is a detailed block diagram of the storage and forwarding device 4 shown in FIG. 2, and FIG. 4 is an explanatory diagram showing the signal system between the analog facsimile machine 1, the private branch exchange 3, and the storage and forwarding device 4 shown in FIG. 1.2...analog facsimile device, 3...private branch exchange, 4...storage and forwarding device, 5...exchange interface section, 6...facsimile control section, 7...
Storage control unit, 8...Magnetic disk, a...Off-hook dial signal, h...Message end signal, i...
, Message confirmation No. 1. II...On-hook signal. Figure 4 Procedural amendment (voluntary) 5a%, 1 Showa year: Mr. Commissioner of the Japan Patent Office □ 1. Indication of the case 1982 Patent application No. 128821 2. Name of the invention Facsimile signal reception and storage system 3. Person making the amendment Relationship to the incident Patent application Person address (105) 1-7-12 Toranomon, Minato-ku, Tokyo Name (029) Representative of Oki Electric Works S Co., Ltd.
Director and President Masao Miyake 4 Agents
(1 other person) Location (105) 1-7-1 Toranomon, Minato-ku, Tokyo
No. 2 No. 6, Contents of amendment: Figure 1 of the drawing will be amended as shown in the attached sheet. that's all

Claims (1)

[Claims] In a storage and forwarding system that accommodates a facsimile device, abnormalities in operation when the storage and forwarding device receives and stores image signals from the facsimile device are detected by the facsimile device,
A facsimile signal reception and storage method, characterized in that in a facsimile control procedure after the end of a transmission operation, a procedure error is generated by not returning a response from the storage/exchange device, and the facsimile device is notified of the error.