Audio and video communications terminal with improved adjustments
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04N-007/12
H04N-007/14
출원번호
US-0473878
(1990-02-02)
우선권정보
FR-0001408 (1989-02-03)
발명자
/ 주소
Guichard Jacques (Paris FRX) Buchner Georges (Paris FRX) Isckia Alain (Choisy le Roi FRX)
출원인 / 주소
L\Etat Francais (FRX 03)
인용정보
피인용 횟수 :
113인용 특허 :
0
초록▼
An audio and video communications terminal, of the type comprising a housing, a camera provided with an optical system, a display screen, a microphone, a loudspeaker, and a central unit including a sound and image information encoder and decoder, and an interface in association with the elements for
An audio and video communications terminal, of the type comprising a housing, a camera provided with an optical system, a display screen, a microphone, a loudspeaker, and a central unit including a sound and image information encoder and decoder, and an interface in association with the elements for communication with another terminal of the same type via a digital transmission network, the terminal further comprising electric motors and clutches for adjusting at least one camera parameter; a manual control suitable for generating control information for adjusting the parameter(s); and a switch for switching between a local adjustment mode in which the control information is applied to the electric motors and clutches, and a remote adjustment mode in which the control information is sent to the other terminal over the digital network in parallel with the sound and image information, and in which control information received from the other terminal, likewise over the digital network and in parallel with sound and image information, is applied to the electric motors and clutches. The invention is applicable to improving user comfort with video telephones.
대표청구항▼
An audio and video communications terminal, of the type comprising a housing, a camera including an optical system, a display screen, a microphone, a loudspeaker, and a central unit including sound and image information encoding means and sound and image information decoding means, and interface mea
An audio and video communications terminal, of the type comprising a housing, a camera including an optical system, a display screen, a microphone, a loudspeaker, and a central unit including sound and image information encoding means and sound and image information decoding means, and interface means in association with said elements for communicating with another terminal of the same type via a digital transmission network, said screen being normally used for displaying image information received from said other terminal, wherein the terminal further comprises, in combination: adjustment means for adjusting at least one camera parameter; manual control means suitable for generating control information for adjusting said parameter(s); and control and image information switching means for switching over between: (i) a temporary local adjustment mode in which said control information is applied to said adjustment means and signals from the camera are applied to the screen instead of image information received from the other terminal, thereby enabling a speaker to adjust said parameter(s) according to what he sees on the screen; and (ii) a remote adjustment mode in which said control information is sent to said other terminal over the digital network in parallel with said sound and image information, and in which control information received from said other terminal, likewise over the digital network and in parallel with sound and image information, is applied to said adjustment means and said image information received from said other terminal is applied to the screen; said terminal further comprising a light source for illuminating the subject, and wherein the adjustment means are suitable for acting on the intensity of the source which thus constitutes one of the camera parameters.
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