JPH0440064A - Facsimile equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a facsimile apparatus having a reception selection function.

(Prior Art) If data sent from an unspecified party is unconditionally received, problems may occur, such as preventing the transmission of important documents or preventing regular communication. In order to resolve such problems, ID codes are determined in advance on the sending and receiving sides, and reception is permitted depending on whether the sending party's ID code matches the ID code, or the line is forcibly disconnected. A facsimile machine having a reception selection function has been proposed (for example, Japanese Patent Laid-Open No. 63-262
(See Publication No. 963).

(Problem to be Solved by the Invention) However, with facsimile devices that permit reception only when the ID codes match, it is impossible to know who has rejected the reception, and it is difficult for the sender to identify the recipient's ID. If the receiver does not know the code, the receiver will not be allowed to receive the data even if it is necessary, resulting in a problem that the receiver will lack information.

Furthermore, if the facsimile machine on the sending side has a retransmission function, even if the receiving side forcibly disconnects the line, a problem occurs in that the call and line disconnection are repeated two or three times.

The present invention solves these conventional problems,
At least know the sender who has prohibited reception.

Another object of the present invention is to provide a facsimile device that allows the user to know what kind of data is being sent and prevents retransmission on the sending side.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a function that selects whether or not to permit reception by comparing it with a pre-stored ID (identification) code when an incoming call is received. If the ID codes do not match, the facsimile machine has the C3l (Called Terminal Identification) code or RTI (Recipient Identification Indication) of the other party that prohibits reception when forcibly disconnecting the line.
The configuration includes means for storing only the code, and means for later outputting the stored reception prohibited station list if necessary.

Further, if the ID codes do not match, the system is configured to include means for forcibly disconnecting the line after receiving the first predetermined length of the transmitted information.

In addition, if the ID codes do not match, only the communication is performed normally and an acknowledgment is returned at the end, but the configuration has a means for discarding the received data without outputting it.

Furthermore, there is a mode in which the ID code is unconditionally received even if the ID codes do not match, a mode in which only the C8I code or RTI code of the other station whose reception is prohibited is stored, and a mode in which only the first predetermined length of transmitted information is received. A mode is set, and a mode is set in which only communication is performed normally and an acknowledgment is returned at the end, but received data is not outputted and is discarded, and the configuration has means for arbitrarily selecting each mode.

(Function) According to this configuration, since the partner station whose reception is prohibited is recorded, it is possible to read it out and contact the partner station if necessary. Furthermore, if only the first part of the sent information is known, the contents of the data can be determined and, if necessary, a request for retransmission can be made. Furthermore, by returning an acknowledgment even if the received data is not output, retransmission can be prevented when the other station has a retransmission function. Furthermore, these modes can be arbitrarily selected depending on the situation.

(Example) An embodiment will be described in detail below with reference to one drawing.

FIG. 1 shows the configuration of a facsimile apparatus according to an embodiment of the present invention, in which 1 is a scanner that reads an original image at a predetermined resolution, 2 is a plotter that prints and outputs a recorded image at a predetermined resolution, and 3 Reference numeral denotes an operation display section, which is composed of various keys necessary to operate the facsimile machine and a display device for displaying various operation guidance messages. 4 is an encoding/decoding unit which encodes and compresses the image information and decodes the encoded and compressed image signal into the original image information. 5 is a modem that performs predetermined modulation/demodulation processing for data transmission; 6 is a communication control unit that executes predetermined facsimile transmission procedures; 7 is a system control unit that performs internal processing of the facsimile machine and processing of each element; 8 is a facsimile machine; Memory for storing various information necessary for the operation of the device, 9
is a network control unit that performs data communication using a public communication network;
Reference numeral 10 denotes a handset, which is used for meetings with other parties.

The scanner 1, plotter 2, operation display section 3, encoding/decoding section 4, modem 5, communication control section 6, system control section 7, and memory 8 exchange necessary data through a path line 11.

Here, as shown in FIG. 2, the memory 8 includes a list table of the ID code of the own station, the ID code of the other station for requesting reception permission from the other station, and the reception selection function mode. recorded.

Next, the operation of this embodiment will be explained based on a flowchart. First, in FIG. 3, when a facsimile machine on standby receives an incoming call (301), the ID code is checked in preprocessing (302), and if the ID codes match, normal reception is performed (303). If they do not match, the C8I code or RTI code of the other station is stored (304), and the line is forcibly disconnected (305).

After that, output the reception prohibited station list as necessary (3
06,307).

This function allows you to know the sender's contact information even if reception is prohibited due to ID code mismatch.

In FIG. 4, first, the output length (for example, the first few centimeters) when the ID codes do not match is arbitrarily set in advance (401). Therefore, when the facsimile machine on standby receives an "incoming call" (402), the ID is
Check the code (403), and if the ID codes match, normal reception is performed (404). If there is a mismatch, reception is performed for a preset length (405), and the line is forcibly disconnected (406).

With this function, even when the ID codes do not match, it is possible to know what kind of data the sender was trying to send, and if necessary, it is possible to request the sender to send it again.

Next, in FIG. 5, when an incoming call is received (501), the ID code is confirmed by preprocessing (502), and the ID
If the codes match, normal reception is performed (5t)3).

If there is a mismatch, communication with the partner station is performed normally, and an acknowledgment is returned at the end, but the received data is discarded without being output (504).

With this function, retransmission can be prevented when the destination station is a facsimile machine with a retransmission function.

Here, even if the ID code does not match, you will be accepted unconditionally.
There are two modes: a mode in which only the C8I code or RTI code of the other station is stored, which prohibits reception, a mode in which only the first predetermined length of transmitted information is received, and a mode in which only the communication is performed normally and an acknowledgment is made at the end. It is desirable to set a mode in which a response is returned but the received data is discarded without outputting it, and to be able to select any mode from among them depending on the situation.

Figure 6 shows the reception mode (normal reception, operation 1, operation 2) when the ID codes do not match.
, operation 3) are set in advance (601). When the facsimile machine receives a call (602), the ID code is checked in preprocessing (603), and if the ID codes match, normal reception is performed (607). In case of mismatch, normal reception (607), operation 1 (608), operation 2 (60
9), operation 3 (610) is executed.

(Effects of the Invention) As explained above, according to the present invention, ■ ID
Even if the line is forcibly disconnected because the codes do not match, the transmitting station can be known, so if necessary, the communication can be made to the other station.

■Even if the ID codes do not match when a call is received, only the first predetermined length of the transmitted information is received, so you can know what kind of data the other station tried to send, and if necessary. If so, you can request a retransmission.

(2) Even if the ID codes do not match when a call is received, communication continues normally and an acknowledgment is returned at the end, so retransmission can be prevented even if the other party is a facsimile machine with a retransmission function.

■What to do if the ID codes do not match when receiving a call (normal reception mode, C8I of the other station)
A mode in which only the code or RTI code is stored, a mode in which only the first predetermined length of transmitted information is received,
A mode in which only communication is performed normally and an acknowledgment is returned at the end, but the received data is discarded without being outputted can be arbitrarily selected depending on the situation.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a facsimile machine according to an embodiment of the present invention, FIG. 2 is a diagram showing the contents of the same memory, and FIG. FIG. 4 is a flowchart of a mode in which only the C81 code or RT echo code is stored, and FIG. Fig. 6 is a flowchart of a mode in which, if the ID codes do not match when a call is received, only the communication is performed normally and an acknowledgment is returned at the end, but the received data is discarded without being output.
12 is a flowchart for selecting various reception modes when ID codes do not match when a call is received. 1...Scanner, 2...Plotter, 3...
Operation display section, 4... Encoding/decoding section, 5...
Motem, 6...Communication control unit, 7...System control unit, 8...Memory, 9...Network control unit, 10...Handset, 11...Pass line. Patent applicant: Ricoh Co., Ltd. 1L Figure 3 Figure 2 Figure 2

Claims (4)

[Claims] (1) When a facsimile machine receives a call, it checks it against a pre-stored ID code and selects whether or not to permit the reception.If the ID codes do not match, the line is forcibly disconnected. A facsimile apparatus comprising means for storing only the CSI code or RTI code of a partner station whose reception is prohibited, and means for later outputting a list of stations whose reception is prohibited as required. (2) When receiving an incoming call, a facsimile machine has the function of checking a pre-stored ID code and selecting whether or not to permit the reception. If the ID codes do not match, the first predetermined length of the transmitted information 1. A facsimile device comprising means for forcibly disconnecting a line after receiving a short amount of data. (3) When receiving a call, a facsimile machine has the function of checking it against a pre-stored ID code and selecting whether or not to permit the reception. If the ID codes do not match, only the communication will be carried out normally and an acknowledgment will be sent at the end. A facsimile machine characterized by having means for returning a response but discarding received data without outputting it. (4) When a facsimile machine receives a call, it compares it with a pre-stored ID code and selects whether or not to permit the reception. A facsimile machine characterized by having means for setting a mode in which the operations in items (1), (2), and (3) are performed and arbitrarily selecting each mode.