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US5777663A Expired / Lapsed US ⏱️ 0.0 years remaining

Picture codec and teleconference terminal equipment

Assignee: Hitachi Ltd

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Filing: 1997-01-10

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Granted: 1998-07-07

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Expires: 2017-01-10

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Abstract

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.

Inventors

👤 Yoji Shibata
👤 Masaaki Takizawa
👤 Hitoshi Matsushima
👤 Hiroshi Yoshikawa
👤 Atsuo Yoshida
👤 Toru Ebihara
👤 Jun Furuya
👤 Yukinobu Maruyama
👤 Takehiko Yamada

Bibliographic Details

Application Number —

Jurisdiction US

Data Source google_patents

Last Synchronized 2026-11-08 01:51

CPC Classifications

H; H04; H04N; H04N1/00; H04N1/04; H04N1/10; H04N1/1004; G; G06; G06T; G06T1/00; G06T1/20; G06T9/00; H04N1/42; H04N5/00; H04N5/44; H04N5/445; H04N5/45; H04N7/00; H04N7/14; H04N7/141; H04N7/142; H04N7/147; H04N7/148; H04N7/15; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0435; H04Q11/0457; H04Q11/0471; H04Q2213/00; H04Q2213/13034; H04Q2213/13091; H04Q2213/13096; H04Q2213/13106; H04Q2213/13175; H04Q2213/13176; H04Q2213/13179; H04Q2213/13204; H04Q2213/13209; H04Q2213/1332; H04Q2213/13337; H04Q2213/204; H04Q2213/337

Claims Analysis

Total Claims: 4

Claim 1

Independent Claim 146 words

An equipment for a teleconference comprising: an image input apparatus; an image display apparatus coupled at least to the image input apparatus; a communication control apparatus coupled at least to the image display apparatus; a key console apparatus coupled to the communication control apparatus; a telephone control apparatus coupled to the communication control apparatus; and an image codec coupled to the image input apparatus, the image display apparatus and the communication control apparatus; wherein the display apparatus enables simultaneous display of a received image at one portion of the display apparatus and an input image at another portion of the display apparatus and enables reversal of the portion of the received image and the input image so that the input image is displayed at the one portion of the display apparatus and the received image is simultaneously displayed at the other portion of the display apparatus.

Claim 2

Dependent Claim 146 words

Claim 3

Dependent Claim 30 words

An equipment for a teleconference according to claim 1, wherein input image is displayed in one of a normal image, mirror image, and a point symmetry image rotated by 180°.

Claim 4

Dependent Claim 36 words

An equipment for a teleconference according to claim 1, wherein the display apparatus is responsive to key operation of the key console apparatus for enabling reverse of the portion of the received image and input image.

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USPTO Annuity & Maintenance Windows

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2001-07-06	2002-01-05	2002-07-07	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2005-07-06	2006-01-05	2006-07-07	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2009-07-06	2010-01-05	2010-07-07	$7700.00	Window Closed / Lapsed

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