Picture codec and teleconference terminal equipment
First Claim
1. A document photographing stand, comprising:
- a work surface for placing a document thereon;
a lower link which is pivotally mounted on said work surface;
an upper link which is pivotally mounted on said lower link;
a camera which is pivotally mounted on said upper link; and
a marker for emitting a spot light;
wherein said lower link and said upper link are respectively turnable relative to said work surface and to said lower link up to a position at which said camera is supported above said work surface;
said camera, at said position at which said camera is supported above said work surface, photographs a reflection from a front surface of said document placed on said work surface; and
said marker, being inlaid on said work surface in one of a central position and a corner position of an area to be photographed by said camera, displays a spot mark on said front surface of said document placed on said work surface by the spot light which has been emitted from said marker and has passed through said document form a back surface of said document to said front surface of said document.
0 Assignments
0 Petitions
Accused Products
Abstract
In a teleconference terminal equipment; a picture codec for simultaneously displaying a still picture and video on a single screen, comprising an analog-to-digital converter which converts a picture signal into digital picture data, a picture-in-picture processor which is supplied with the digital picture data as self-picture data of the terminal equipment, a video decoder or a still picture decoder which decodes input picture data and delivers the decoded data to the P-in-P processor, and a digital-to-analog converter which is supplied with picture data for forming a P-in-P frame, having been produced from the self-picture data and the decoded data by the P-in-P processor, and which converts the supplied picture data into an analog signal and delivers the analog signal as an output.
-
Citations
5 Claims
-
1. A document photographing stand, comprising:
-
a work surface for placing a document thereon; a lower link which is pivotally mounted on said work surface; an upper link which is pivotally mounted on said lower link; a camera which is pivotally mounted on said upper link; and a marker for emitting a spot light; wherein said lower link and said upper link are respectively turnable relative to said work surface and to said lower link up to a position at which said camera is supported above said work surface; said camera, at said position at which said camera is supported above said work surface, photographs a reflection from a front surface of said document placed on said work surface; and said marker, being inlaid on said work surface in one of a central position and a corner position of an area to be photographed by said camera, displays a spot mark on said front surface of said document placed on said work surface by the spot light which has been emitted from said marker and has passed through said document form a back surface of said document to said front surface of said document.
-
-
2. An equipment for a teleconference in which a few persons utilize the equipment, and for exchanging pictures and video of persons in real time through a digital communication channel, comprising:
-
communication control means for transmitting and receiving multiplexed video data, user data, facsimile data and audio data through said digital communication channel; multiplex/demultiplex means for multiplexing and demultiplexing the video data, user data, facsimile data and the audio data to be transmitted by said communication control means and having been received by the same, respectively; a picture codec which decodes a picture signal from said video data demultiplexed by said multiplex/demultiplex means and then delivers said picture signal as an output, and which codes an input picture signal to-be-coded into said video data and then transfers said vide data to said multiplex/demultiplex means; a camera which includes a lens having an approximately 60°
field of view, and which supplies said picture codec with a picture signal of picked-up-picture as the picture signal to-be-coded;an external video input terminal which receives a video signal from outside of the equipment and which supplies said picture codec with the video signal as the picture signal to-be-coded; a display unit which displays a picture represented by the picture signal decoded by said picture codec; an external video output terminal which outputs the picture signal decoded by said picture codec to outside of the equipment; an audio codec which decodes a speech signal form said audio data demultiplexed by said multiplex/demultiplex means and then delivers said speech signal as an output, and which codes an input speech signal to-be-coded into said audio data and then transfers said audio data to said multiplex/demultiplex means; a loud speaker which emits speech based on said speech signal decoded by said audio codec; an external audio output terminal which outputs said speech signal decided by said audio codec to outside of the equipment; an external data input/output terminal which receives user data from outside of the equipment and which transfers the received user data to the multiplex/demultiplex means, said external data input/output terminal outputting user data demultiplexed by said multiplex/demultiplex means to outside of the equipment; an external facsimile signal input/output terminal which receives facsimile signal form outside of the equipment and which transfers the facsimile data represented by the received facsimile signal to the multiplex/demultiplex means, said external facsimile signal input/output terminal outputting facsimile signal represented by the facsimile data demultiplexed by said multiplex/demultiplex means to outside of the equipment; and a housing in which said communication control means, said multiplex/demultiplex means, said picture codec, said camera, said display unit, said audio codec, said loudspeaker, said external video input terminal, said external audio output terminal, said external video output terminal, said external data input/output terminal and said external facsimile signal input/output terminal are housed, and which has a size permitting said equipment to be placed on a table and removed by a person. - View Dependent Claims (3, 4, 5)
-
Specification