JPH0316780U

JPH0316780U -

Info

Publication number: JPH0316780U
Application number: JP7735989U
Authority: JP
Priority date: 1989-06-30
Filing date: 1989-06-30
Publication date: 1991-02-19
Anticipated expiration: 2004-06-30
Also published as: JP2527947Y2

Description

[Brief explanation of drawings]

第１図は、この考案の静止画テレビ電話装置の
一実施例を示す概略斜視図、第２，３図は、それ
ぞれ第１図に示したテレビ電話本体の要部を示す
正面図、第４図は、第１図に示した静止画テレビ
電話装置の回路構成図、第５図は、この考案の静
止画テレビ電話装置の他の実施例を示す側面図、
第６図は、従来の静止画テレビ電話装置の一例を
示す回路構成図である。３……電話機、４……回線インタフエース、５
……電話回線、６……音声・画像切り替え回路、
７……復調回路、８……画像制御回路、９……モ
ニタ受像機、１２……変調回路、２１，４１……
静止画テレビ電話装置、２２，４２……テレビ電
話本体、２３，４３……電子スチルカメラ、２５
，４５……接続具、２７……撮像素子、２８……
録画再生回路、２９……磁気ヘツド、３０……磁
気記録媒体、３２……データ変換回路。 FIG. 1 is a schematic perspective view showing one embodiment of the still image videophone device of this invention, and FIGS. 2 and 3 are front views showing essential parts of the videophone main body shown in FIG. The figure is a circuit configuration diagram of the still picture video telephone device shown in FIG. 1, and FIG. 5 is a side view showing another embodiment of the still picture video telephone device of this invention.
FIG. 6 is a circuit diagram showing an example of a conventional still picture video telephone device. 3...Telephone, 4...Line interface, 5
...Telephone line, 6...Audio/image switching circuit,
7... Demodulation circuit, 8... Image control circuit, 9... Monitor receiver, 12... Modulation circuit, 21, 41...
Still image videophone device, 22, 42...Videophone main body, 23, 43...Electronic still camera, 25
, 45... Connection tool, 27... Image sensor, 28...
Recording/reproducing circuit, 29...Magnetic head, 30...Magnetic recording medium, 32...Data conversion circuit.

Claims

[Scope of Claim for Utility Model Registration] (1) A telephone connected to a telephone line, and a videophone connected to the telephone and displaying still images transmitted and received using the telephone line on a built-in monitor receiver. and a still image videophone device comprising an electronic still camera that can be connected to and separated from the videophone main body and functions as a means for supplying transmitted images or a means for storing received images when connected. (2) The videophone main unit includes a modulation/demodulation circuit that converts a still image into several levels of gradation information using an amplitude phase modulation method and transmits and receives the same, and a still image sent from the electronic still camera that is specified in the communication standard. A data conversion circuit for converting digital data into digital data; and an image control circuit for selectively supplying the conversion output of the data conversion circuit or the demodulation output of the modulation/demodulation circuit to the monitor receiver. Item 1. Still image videophone device according to item 1. (3) The still image videophone device according to claim 2, wherein the data conversion circuit includes an AD converter that changes the sampling mode in accordance with the communication mode and varies the aspect ratio of the still image. . (4) The electronic still camera includes an image sensor that photoelectrically converts the image of a subject, and frequency-modulates the output video signal of this image sensor into a luminance signal and a color difference signal to produce still image information for one field or one frame. The still image information is recorded on a magnetic recording medium, and the still image information reproduced from this magnetic recording medium is demodulated.
2. The still image videophone apparatus according to claim 1, wherein said television main body includes recording and reproducing means for sending out only demodulated luminance signals. (5) The still image videophone according to claim 1, wherein the electronic still camera is detachably attached to the videophone main body and has a connector that achieves mechanical coupling and electrical connection at the same time. Device.