JPH03234187A - Picture transmitter - Google Patents

Abstract

PURPOSE:To eliminate the need for a memory in a picture transmitter and to simplify the constitution by using a storage medium in a removable form for a memory storing a picture data. CONSTITUTION:The transmitter is provided with a storage medium 31 removed from a main body storing a picture data, a connector 32 with the storage medium 31 loaded thereto and a picture transmission means 38 having a transmission section 33 sending directly a picture data stored in the storage medium 31. Thus, a picture data is read from the storage medium 31 loaded to the connector 32 and sent from the transmission section 33 and an IC memory card 31 is used as a memory for the picture transmitter 38 to save the memory in the picture transmitter to send the picture with less deterioration.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image transmission device that transmits image data using a communication line.

[Conventional technology]

2. Description of the Related Art In recent years, image transmission devices that transmit still images using communication lines such as telephone lines have become increasingly popular.

FIG. 2 is a block diagram showing an example of a conventional image transmission device. An image is captured by an imaging device such as a CCD using an electronic still camera 1, the image is compressed as image data, and is stored as a still image in a replaceable storage medium such as an IC memory card 2 or a floppy disk in the electronic camera. . Image transmission is then performed by connecting the IC memory card 2 to the image transmission device. The IC memory card 2 is connected to an expansion processing section 4 via a connector 3. The decompression processing section 4 decompresses the image data and provides the signal to the D/A conversion section 5. The D/A converter 5 converts the digital signal into an analog signal, and switches the selector switch 6.
give to The changeover switch 6 is used to switch between the image data from the IC memory card 2 and the video input signal from the video terminal 7, and provides the obtained image signal to the reproduction signal processing section 8. The reproduced signal processing section 8 processes the applied signals into respective video signals and supplies them to the A/D conversion section 9 and the TV monitor 10. The TV monitor 10 reproduces an input video signal as an image.

An A/D converter 9 connected to the reproduced signal processor 8 converts the video signal into a digital signal, and provides its output to the compression processor 11 . The compression processing unit 11 compresses the image data and provides it to the memory 12. memory 12
stores image data, and the stored image data is given to the transmitting section 13. The image data from the transmitting section 13 is given to the receiving section 16 of a receiving device it15 located far away via a telephone line 14 which is a transmission medium.

The receiving unit 16 receives the transmitted image data and stores the image data in the memory 17. Then, one screen of image data is read out, and the decompression processing section 18 decompresses the compressed image data and provides it to the D/A conversion section I9. D/A
The converting section 19 converts the image data into an analog signal and supplies it to the reproduction signal processing section 20. The reproduction signal processing section 20 converts the image data into a video signal, and reproduces the image on the TV monitor 21.

[Problem to be solved by the invention]

However, in such conventional image transmission devices, before image transmission, image data is D/A converted and then A/A converted.
Conversion processing such as D conversion or compression processing after decompression processing had to be performed. Furthermore, a memory other than the IC memory card was required inside the image transmission device.

The present invention has been made in view of the problems of conventional image transmission devices, and by using an IC memory card as the memory of the image transmission device, the memory in the image transmission device can be omitted and the deterioration can be reduced. The technical challenge is to be able to transmit fewer images.

[Means to solve the problem]

The invention of claim 1 of the present application is an image transmission device that transmits image data using a communication line, which stores the image data,
The device is characterized by comprising a storage medium that is detachable from the main body, a connector into which the storage medium is inserted, and an image transmission means having a transmitter that directly transmits image data stored in the storage medium. .

The invention of claim 2 of the present application has a mode changeover switch for switching between an image transmission mode in which image data on a storage medium is transmitted by an image transmission means, and an external storage mode in which image data provided from the outside is stored in the storage medium. It is characterized by:

The invention according to claim 3 of the present application is characterized in that the storage medium is an IC memory card.

[Effect]

According to the invention of claim 1 of the present application having such features, image data is read from the storage medium inserted into the connector and transmitted from the transmitter. Further, in the invention of claim 2 of the present application, the image data read from the storage medium is transmitted when the mode changeover switch is switched to the image transmission mode, and when the mode changeover switch is switched to the external storage mode for storing image data, the image data is stored in the storage medium. That's what I do.

〔Example〕

An embodiment of an image transmission device of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an image transmission apparatus according to an embodiment of the present invention, and the same parts as in the conventional example described above are given the same reference numerals and detailed explanations will be omitted. In FIG. 1, an image photographed by an electronic still camera 1 is stored as image data in an IC memory card 31, which is a storage medium. Further, by connecting the IC memory card 31 to the connector 32, the recorded image data is provided to the transmitting section 33 and the decompression processing section 4.

The video terminal 34 is a terminal to which a video signal from the outside is input, and is connected to an A/D converter 35. The A/D converter 35 converts the video signal into a digital signal and provides it to the compression processor 36. The compression processing section 36 compresses image data and is connected to a mode changeover switch 37. The mode changeover switch 37 has an image transmission mode A (hereinafter referred to as mode A) in which image data from the IC memory card 31 is transmitted, and an external storage mode B in which video signals from the outside are temporarily stored in the IC memory card 31.
(hereinafter referred to as mode B). Here, the connector 32° transmitting section 33. Video terminal 34. The A/D conversion section 35, the compression processing section 36, and the mode changeover switch 37 are part of the image transmission means 3 for transmitting image data.
8.

The transmitter 33 is connected to the telephone line 14 which is a transmission medium,
Image data is provided to a receiving section 16 of a receiving device 15 located far away. The configuration of the receiving device 15 is the same as that of the conventional example described above, and the receiving section 16 temporarily stores the received image data in the memory 17, and then sends the image data of one screen to the decompression processing section 18. The decompression processing section 18 decompresses the compressed image data and provides the output to the D/A conversion section 19 . The D/A converter 19 converts the image data into an analog signal and provides it to the reproduction signal processor 20. A reproduction signal processing section 20 converts the image data into a video signal and provides it to a TV monitor 22.

Further, the decompression processing section 4 decompresses the image data given from the IC memory card 31, and the D/A conversion section 5 converts the resulting signal into a D/A converter.

The reproduced signal processing section 8 supplies the D/A converted signal to the TV monitor 10 as a video signal, as in the conventional example described above.

Next, the operation of this embodiment will be explained. First, when mode A is selected using the mode changeover switch 37 to transmit image data taken with the electronic still camera 1 from the IC memory card 31, the IC memory card 31 is connected to the connector 3.
2 The normal image data inserted into the IC memory card 31 is compressed and recorded on the IC memory card 31.
The image data is read out, decompressed by the decompression processing section 4, and converted into an analog signal by the D/A conversion section 5. Then, the reproduction signal processing section 7 outputs the video signal to the TV.
It is output to the monitor 10. The TV monitor 10 monitors images based on input from the reproduction signal processing section 7.

Also, the image signal read from the IC memory card 31 is simultaneously transmitted from the transmitting section 33 to the distant receiving device 15 via the telephone line 14. In the receiving device, the receiving unit 16 receives this signal, and the zero-order image data that is temporarily stored in the memory 17 is decompressed by the decompression processing unit 18 and then sent to the D/A.
The converter 19 converts the signal into an analog signal and outputs it to the reproduced signal processor 20. The image data input to the reproduction signal processing section 20 is converted into a video signal and output to the TV monitor 22 to reproduce the image.

Next, when a mode for storing external video signals is selected, the mode selector switch 37 is switched to mode B, and the IC memory card 31 is inserted into the connector 32. When a video signal is input from the video terminal 34, the A/
The data is A/D converted by the D converter 35, then compressed by the compression processor 36, and stored in the IC memory card 31.

In mode B, the IC memory card 31 is used as a buffer memory, and the image data once stored in the IC memory card 31 is output from the transmitter 33, and the same processing as in mode A described above is performed.

〔Effect of the invention〕

As described in detail above, according to the present invention, by using a removable storage medium in the memory that stores image data, it is possible to eliminate the need for memory in the image transmission device, and to simplify the configuration. can do. Further, when transmitting photographed image data, no A/D conversion or compression processing is performed, so there is no signal deterioration, and clear image transmission can be achieved with a relatively simple configuration.

In this embodiment, an IC memory card is used as the storage medium, but it goes without saying that a video floppy disk or the like may also be used.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a west copy transmission device according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the bottom of a conventional image transmission device. 1-・・・・Electronic still camera 4,18−・−
---Extension angle section 5.19-・--11~D/A
Conversion section 8, 2 [...--Reproduction signal processing section 10
, 21---TV %: 15...-
・-Receiving device 16-------Receiving section 17--
-----Memory 31...------rc memory card 32---------Connector 33---------
- Transmitter section 34--Video terminal 35-...-A/
D conversion section 3 [compression processing section 37 ---mode switching switcher 3 B -------1 image transmission means.

Claims (3)

[Claims] (1) An image transmission device that transmits image data using a communication line, comprising a storage medium that stores image data and is detachable from the main body, a connector into which the storage medium is inserted, and storage in the storage medium. 1. An image transmission device comprising: an image transmission means having a transmission section that directly transmits image data to be transmitted. (2) A claim characterized by having a mode changeover switch for switching between an image transmission mode in which image data on a storage medium is transmitted by an image transmission means, and an external storage mode in which image data provided from the outside is stored in the storage medium. Item 1. Image transmission device according to item 1. (3) The image transmission device according to claim 1, wherein the storage medium is an IC memory card.