JPH05268381A - Picture transmitter - Google Patents

Abstract

PURPOSE:To effectively send plural kinds of data through the use of one and same public line. CONSTITUTION:At least picture data and voice data are mixed in time division multiplex at a mixer 16A and sent via a MODEM 20A and a general public line 3. A MODEM 20B decodes reception data at a receiver side, a divider 31B is used to separate data, picture data are displayed by a display device 32B and voice data are outputted to a voice output device 34B. Since at least picture data and voice data are simultaneously sent through one and same line, talking is attained while observing a same picture.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an image transmission apparatus, and more particularly to an image transmission apparatus for transmitting image data via a general public line.

[0002]

2. Description of the Related Art In this type of image transmission device, the transmission side searches for image data in an image data storage device on the transmission side and transmits it to the reception side via a general public line.

In this case, when a certain point on the image is instructed to the other party, the transmitting side searches the image data, adds an instruction arrow, a comment sentence, etc. to the image data, and then transmits the image data. When transmitting the image, the transmitting side searches for the image and performs image processing and then transmits the image. Furthermore, when making a call at the same time as image transmission, it is necessary to use two or more lines.

In the case of instructing a certain point on the image to the other party or performing image processing by the conventional image transmitting apparatus of this kind, after the target image is searched on the transmitting side, the arrow and the comment text are displayed. It is necessary to transmit after adding, image processing, etc. Also, when the receiving side indicates a certain point on the image to the transmitting side, or when image processing is performed, the receiving side can call from another line by calling. Request the original image again and add an arrow or comment to the received image.
Since it is necessary to return after performing image processing and the like, a plurality of lines are required, there is a lot of waste of time, and there is a problem that the lines cannot be used effectively.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above drawbacks and to transmit a large number of various input data on the same line.
An object is to provide an image transmission device that can effectively use one line.

[0006]

The image transmitting apparatus according to the present invention is an image transmitting apparatus for transmitting image data read out from the image data storing means through a general public line, and voice input means for inputting voice and this input. Data conversion means for converting voice into digital voice data, mixing means for multiplexing the voice data and the image data in a time division manner, and a modem for transmitting the mixed output through the public line Is characterized by.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention, showing a case where two devices A and B having the same structure perform image transmission via a general public line 3.

Each of the devices A and B basically has a data input section 10.
A and 10B, modems 20A and 20B, and data output sections 30A and 30B. Both devices have the same configuration, so only the configuration of the device A will be described.

The data input unit 10A includes an image data storage device 11A for storing image data, a cursor position input device 12A for inputting cursor coordinates, and cursor position data for generating cursor position data from the input cursor position. A generator 13A, a voice input device 14A for inputting voice, a voice digitizing device 15A for digitizing the input voice, and a mixture for time-divisionally multiplexing and mixing image data, cursor data, and voice data. 16A.

As the mixing method in the mixer 16A, each data is framed and time-division multiplexed, and the header part of each frame indicates the data type (image data, audio data, cursor data) of the frame. By providing the flag field, the data type of the frame can be discriminated on the receiving side by the flag content of this field.

The data output section 30A discriminates the data type of the received data from the modem 20A based on the flag of each frame, and a distributor 31A for separately distributing image data, audio data and cursor data, an image data and a cursor. It comprises a display device 32A for displaying data, a voice analogizing device 33A for analogizing voice data, and a voice output device 34A for outputting this voice.

Next, the operation of this image transmission device will be described.
When the image data is transmitted from the device A to the device B, the image data read from the image data storage device 11A is sent to the mixer 16A and displayed on the display device 32A. Also,
It is sent to the modem 20A and sent to the receiving modem 20B via the general public line 3. The received data decoded by the modem 20B is displayed on the display device 32B by the distributor 30B.
Sent to and displayed.

Next, when the cursor is displayed on the same image displayed on the device A and the device B from the device A side, the cursor position input by the cursor position input device 12A is determined by the cursor data generator 13A. The data is mixed with the image data currently displayed by the mixer 16A and displayed on the display device 32A. Further, the mixed data is sent from the modem 20A to the modem 20B of the device B via the general public line 3 and sent to the display device 32B by the distributor 31B to be displayed.

The movement of the cursor position is also displayed on the display devices of the devices A and B by the above method. The same applies when the cursor position is input from the device B side.

Next, when a voice call is made in this state, when a voice is sent from the device A side to the device B side, the voice input from the voice input device 14A is digitized by the voice digitizing device 15A and mixed. 16A is mixed with the image data and cursor data currently displayed, and the device B is connected from the modem 20A via the general public line 3.
Sent to the modem 20B. Then, it is distributed by the distributor 31B, converted into an analog signal by the audio analogization device 33B, and output from the audio output device 34B.

The same applies when transmitting voice from device B to device A. Therefore, after transmitting images on the same line, it is possible to talk at the same time while pointing each other with the cursor, and one line can be effectively used.

When the image processing function is added to each of the display devices 32A and 32B and the cursor data is used as the image processing data, after the image transmission through the same line, it is possible to simultaneously talk while adding the image processing.

If a data search function is added to the image data storage device, the other image data can be searched for each other. In this case, the search instruction data is also included in the mixer 16A.
In this case, the search instruction data may be framed and a flag indicating the search instruction data may be inserted in the frame header portion.

Further, if the voice input device and the voice digitizing device are character input devices, it is possible to have a dialogue with comment sentences on the same line after image transmission.

[0021]

As is apparent from the above description, according to the image transmitting apparatus of the present invention, when a certain point on the image is instructed to the other party or image processing is performed, the original image is transmitted between the two apparatuses. Later, it becomes possible to use arrows, comment sentences, image processing, etc. from both the sending side and the receiving side on the same line, and also simultaneous calls are possible, so the number of lines can be reduced and the transmission time can be shortened, and one line There is an effect that can be effectively used.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

[Explanation of symbols]

 A, B image transmission device 3 general public line 10A, 10B data input unit 11A image data storage device 12A cursor position input device 13A cursor position data generator 14A voice input device 15A voice digitizer 16A mixer 20A, 20B modem 30A, 30B Data output part 31A, 31B Distributor 32A, 32B Display device 33A, 33B Audio analogization device 34A, 34B Audio output device

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Internal reference number for FI Technical location H04N 7/14 8943-5C (72) Inventor Kyoko Mori 3-20-4 Nishishinbashi, Minato-ku, Tokyo No. Nippon Electric Engineering Co., Ltd.

Claims (3)

[Claims] 1. An image transmission device for transmitting image data read out from image data storage means via a general public line, wherein voice input means for inputting voice and data for making the input voice digital voice data. An image transmission apparatus comprising: an encoding unit, a mixing unit for time-divisionally multiplexing and mixing the audio data and the image data, and a modem for transmitting the mixed output via the public line. 2. Distribution means for separating and distributing the image data and the audio data from the data received by the modem, a display means for displaying the distributed image data, and a decoding of the distributed audio data. The image transmission device according to claim 1, further comprising: an audio output unit that outputs the converted data. 3. An input unit for inputting cursor position information, wherein the mixing unit further time-divisionally multiplexes and mixes the input cursor position information with the image data and audio data, and the distribution unit 3. The image transmission device according to claim 2, wherein the cursor position information is separated from the data received by the modem and sent to the display means.