JPH08331272A - Image transmission equipment for general telephone line - Google Patents

Abstract

PURPOSE: To effectively utilize recording capacity by storing the size of data to be transmitted in an automatic answering state and permitting the transmission of data only when an ID number is matched. CONSTITUTION: This image transmitter is provided with a display 32 and a video camera 35 together with a receiver 31 and a dial part 33 and transmits a still picture/moving image through a general telephone line and when an automatic answering mode is set, the received voice/image is recorded/stored. In this case, the ID number different from a telephone number and peculiar for equipment is set to each image transmitter. When a first request signal block is transmitted from the transmission side while the reception side is set to the automatic answering state, the reception side recognizes information showing the attribute and size of data to be transmitted contained in that signal and when there is a margin for storing it in its own storage device, a transmission permission with ID number request is returned. When the transmisison side transmits a second request block and the ID number is matched on the reception side, the data transmission is permitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for transmitting a still image / moving image using a general telephone line, and more particularly to an image storage limiting function thereof.

[0002]

2. Description of the Related Art Some general telephone line image transmission devices have a function of recording and storing voice and images when the user is away. An example thereof is shown in FIG. 3 in the figure
Reference numeral 1 is a receiver, 32 is a display, 33 is a dial section mainly composed of numeric keys, 34 is a function switch section, and 35 is a video camera. The function switch unit 34 includes an answering machine / normal standby switching button 34A, accumulated data reproduction button 34B, accumulated data erase button 34C, accumulated data rewind button 34D, and modem connection start (confirmation).
-The end button 34E is provided.

[0003]

In the present telephones and image transmission devices, recording and storage during absence are unconditionally performed regardless of the user's intention.
When the above device is used for the purpose of advertising at an event or the like, there is a possibility that unnecessary information may be undesired against the intention of the user and, in some cases, harmful information may be recorded and accumulated. Also, if a limited storage device is oligopolized for recording and storing such advertisements,
There is a possibility that it may interfere with the recording of the necessary contents such as telephones and images, which have been meaningful to the user since then, and damage them. In particular, with regard to image data, 1) the information capacity is larger than that of voice data and the amount of memory used is large, and 2) it is expected that the combined use of image and voice will have a higher effect on consumer appeal than voice alone. In some cases, more images are expected to be transmitted because they may not be appealed unless they are images. 3) Compared with the case of using only audio, ethical problems are more likely to occur when images are used. , It is expected that the recipient's psychological influence from the image is expected to be large (images for adult men, horror movie images, etc.), etc. , Considered higher.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to solve the above problems and provide an image transmission device for general telephone lines having an image storage limiting function, which can select and record useful image data for storage.

[0005]

According to the present invention, there is provided a general telephone line image transmission device having a function of transmitting and receiving an image on a general telephone line and recording and accumulating received data at the time of absence. The ID number unique to the device on the receiving side is sent, there is room to store the data in the image storage device at the time of reception, and the transmission of the image data is permitted only when the sent ID number matches the own ID number. It is characterized by having a function of sending back a signal and omitting the ID number verification procedure when not in the answering machine state, that is, when transmitting an image during a dialogue.

[0006]

When the device on the receiving side is in the answering machine, the transmitting side transmits the ID number of the receiving side together with the transmission request signal. The receiving side has a room to store data in the image storage device, and sends back a signal permitting the transmission of the image data only when the sent ID number matches its own ID number. After this procedure is completed
Image data is transmitted and image data on the receiving side is stored. That is, the ID number serves as a personal identification number that permits each device to access the image storage device.

Further, when the answering machine is not in the answering machine state, that is, when the image is transmitted during the dialogue, the image is transmitted and recorded and stored in a format in which the ID number matching procedure is omitted. This prevents the ID number from leaking unintentionally.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an image transmitting device for a general telephone line according to the present invention will be described with reference to FIGS. FIG. 1 is a flow chart showing the processing steps of the communication procedure on the transmitting side and the receiving side, and FIG. 2 is an explanatory diagram showing the temporal flow of the communication procedure.

Each image transmission device is provided with a device-specific ID number different from a telephone number. Also, when transmitting an image when the device on the receiving side is in the answering machine, the ID number of the receiving side is sent together with the transmission request signal (the size and attributes of the data to be transmitted) at the time of transmission, and the data is sent to the image storage device at the time of reception. It has a function of sending back a signal permitting the transmission of image data only when there is room to store the image and the sent ID number coincides with its own ID number. The ID number serves as a personal identification number that permits access to the image storage device of each device. When the user is not in the answering machine state, that is, when the image is transmitted during the conversation, the ID number collation procedure is omitted in order to prevent the ID number from leaking unintentionally.

As shown in FIG. 2, the time sequence of the communication procedure is as follows.
1, the ID number signal block BS2 for designating the ID number of the device of the transmission partner, and the data block BS3.
The request signal block BS1 is a type of data (image, voice, text,
It describes simple language, etc., specifications (monochrome or color, resolution, screen size, etc.) and data capacity. The data block BS3 is digitized, compressed / encoded image data (in some cases, other digital data such as voice, text, and simple language is also included).
Is.

On the receiving side, transmission permission / non-permission notice and ID
The order is the first response signal block BR1 for instructing the presence / absence of a number request, and the second response signal block BR2 including the transmission permission / non-permission signal. The first response signal block BR1 is the request signal block BS1
And the ID number signal block BS2, and the second response signal block BR2 is the ID number signal block BS.
2 and the data block BS3.

The process of the communication procedure on the transmitting side and the receiving side is shown in FIG.
It becomes as shown in. Here, the step on the transmitting side is S
The step on the receiving side is indicated by R. First, the request signal block BS1 is transmitted from the transmitting side (S1),
It is received by the receiving side (R1). After the reception, it is determined whether or not the amount of data to be transmitted is an amount that can be stored in the storage device (R2), and if possible, whether or not it is in the answering machine state (R3). If the data amount cannot be stored, the transmission is not permitted (R4). Also, if the answering machine is in the answering machine state, the first response signal block BR1 having the contents of transmission permission and ID number request (R5), and if not in the answering machine state, transmission permission and no ID number request (R6) is sent to the destination. Together with (R7), the presence or absence of transmission permission is determined (R8), and subsequently, the presence or absence of a request for an ID number is determined (R9).

On the transmitting side, the first response signal block BR1 is received (S2) and it is determined whether or not transmission is permitted (S3), or whether or not there is a request for an ID number (S).
4). If there is no transmission permission, the transmission side either gives up the transmission or reduces the data amount and retries. The receiving side gives up receiving and takes measures such as termination of modem connection or waiting for retry. When it is determined that the transmission side requests transmission permission and an ID number, the ID number signal block BS2
Is transmitted (S5). When the receiving side receives this ID number signal block BS2 (R10), it is judged whether or not the ID number sent is the same as that of the own device (R1).
1). If they match, the transmission is permitted (R12), and if they do not match, the transmission is not permitted (R13), and the second response signal block BR2 having the contents is sent to the destination (R1).
4). At the same time, the presence / absence of transmission permission is determined (R15).

The second response signal block B on the transmitting side
When R2 is received (S6), the presence or absence of transmission permission is immediately determined (S7). If the transmission is permitted, the transmitting side transmits the data block BS3 (S8), and the receiving side receives the data (R16). If the transmission is not permitted, the transmission side gives up the transmission or confirms the ID number and retries. The receiving side does not receive it, but takes measures such as blocking the line or waiting for the retry of the ID number.

With this procedure, the receiving side has room to store the data in the image storage device, and the transmission of the image data is permitted only when the transmitted ID number matches with its own ID number. Since the signal is sent back, the accumulation of image data will be restricted even in the answering machine,
You can refuse to send unwanted or harmful image data. Moreover, during the conversation, it is possible to omit the ID number collation procedure and prevent the ID number from leaking unintentionally.

[0016]

As described above, according to the present invention, a unique ID number is given to a device, and a request signal block, an ID number signal block, and a data block are sequentially arranged on the transmitting side.
On the receiving side, the communication procedure is the order of the first response signal block and the second response signal block, so it is possible to limit the recording and storage of useless or harmful image data in the answering machine, which is effective for the image storage device. It can be used. Further, since it is possible to omit the ID number collation procedure during image transmission during the dialogue, it is possible to prevent the ID number from leaking unnecessarily, and the image limiting function can be stably maintained for a long period of time.

[Brief description of drawings]

FIG. 1 is a flowchart showing a process of a communication procedure on a transmitting side and a receiving side in an embodiment of an image transmitting device for a general telephone line according to the present invention.

FIG. 2 is an explanatory diagram showing a temporal flow of a communication procedure of the embodiment.

FIG. 3 is a structural explanatory view showing an example of a general telephone line image transmission device having a recording / storing function of voice and images.

[Explanation of symbols]

 BS1 ... Request signal block BS2 ... ID number signal block BS3 ... Data block BR1 ... First response signal block BR2 ... Second response signal block S1 to S8 ... Transmission side processing steps R1 to R16 ... Reception side processing steps

Claims (2)

[Claims] 1. An image transmission device for a general telephone line having a function of transmitting and receiving an image on a general telephone line and recording and accumulating received data at the time of absence. At the time of transmission, a transmission request signal and an ID number unique to the receiving side device. Has a function to send the image data to the image storage device at the time of reception, and to send back a signal permitting the transmission of the image data only when the ID number sent matches the own ID number. Image transmission equipment for general telephone lines. 2. The image transmission device for a general telephone line according to claim 1, wherein the ID number collation procedure is omitted when the image is transmitted in a non-answering state, that is, during the conversation.