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WO1993018619A1 - Mecanisme d'articulation pour visiophone - Google Patents

Mecanisme d'articulation pour visiophone Download PDF

Info

Publication number
WO1993018619A1
WO1993018619A1 PCT/GB1993/000518 GB9300518W WO9318619A1 WO 1993018619 A1 WO1993018619 A1 WO 1993018619A1 GB 9300518 W GB9300518 W GB 9300518W WO 9318619 A1 WO9318619 A1 WO 9318619A1
Authority
WO
WIPO (PCT)
Prior art keywords
shafts
hub
sealing members
hinge
videophone
Prior art date
Application number
PCT/GB1993/000518
Other languages
English (en)
Inventor
William Alby Wilby
Thomas Hyatt
David William Deighton
Simon Timothy Gross
Anthony C. Caesari
Anthony Brett
Andrew Robert Whalley
Andrew Fierman
Lee Richman
Original Assignee
Gec-Marconi Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gec-Marconi Limited filed Critical Gec-Marconi Limited
Publication of WO1993018619A1 publication Critical patent/WO1993018619A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/08—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter
    • H04M11/085—Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter using a television receiver, e.g. viewdata system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN

Definitions

  • this invention relates to a hinge mechanism in or for a Videophone of the kind having a body part housing a telephone mechanism and having an audio handset associated therewith- and a hinged lid part housing a video system.
  • the body part as well as providing a rest for a telephone handset also incorporates a conventional telephone keypad and may also include a k ⁇ ypad for other functions.
  • the lid part contains a LED display and a camera mechanism.
  • the LED display is on one side of the lid part so that when the lid is folded on to the housing the LED display is protected and when it is raised the display is able to be seen.
  • the camera is incorporated in the lid part to project and view from a position adjacent to the display.
  • the videophone housing and lid parts are made from a plastics material such as ABS and the two parts are hinged together.
  • This invention is concerned particularly with the mechanism of the hinge since it is important that the video part when moved into a position whereby the display can be seen and the camera operated is maintained in an adjusted position. This is particularly important since the camera angle once set is preferably not altered.
  • a hinge mechanism which has a ratchet arrangement whereby the lid part can be moved into one of a number of preset positions and then released therefrom.
  • the proble s with this type of mechanism is that the positions are preset and the hinge is not infinitely variable with a fine degree of control. It is essential that the hinge should be such as to provide the facility whereby the lid can be moved relative to the body easily and without undue force and must stay in position once the correct attitude has been reached. It is an object of the present invention to provide a hinged mechanism which has this characteristic.
  • a hinged mechanism in or for a videophone of the kind described comprises a hub section on one part and a pair of co-operating stub shafts on the other part, the shafts being accommodated in groves in the hub section and a cover securing the shafts in the hub, the shafts each being provided with an elastomeric sealing member arranged to resist movement of one part relative to the other.
  • the sealing rings are preferably '0' rings arranged to provide a firm grip between the two parts and these rings may suitably be of a nitryle rubber material.
  • the sealing rings will preferably provide a friction between the two parts.
  • Locking means are preferably provided for adjustably securing the parts of the hinge together and these locking means may operate through one of the stub shafts.
  • the other of the stub shafts may be provided with through means whereby cabling may be introduced for communication purposes.
  • Figure 1 shows an isometric general view of the videophone and Figure 2 shows in detail an exploded view of the hinged mechanism.
  • the videophone comprises two parts comprising a base part 1 and a hinged lid part 2.
  • the base part has an associated telephone handset 3 resting in the cradle thereon in the manner of a conventional telephone.
  • the base also has an alphanumeric keypad 4 and may also have a further keypad 5 for other functions associated, for example with the video unit.
  • the two parts are joined by a hinged mechanism 6 as is described in Figure 2.
  • the lid part has a display area 7 which is comprised by an LED having a number of elements so that a picture is made up through a plurality of pixels and above the display 7 there is located a video camera 8.
  • the lid 2 is hinged up from the base part 1 which it would normally cover when not in use to a position where the screen 7 can be readily seen and where the camera 8 is pointing directly at the caller.
  • the videophone apparatus includes a self-view feature, then the caller adjusts the position of the lid part 2 relative to the base 1 such that the camera picks up a picture of the caller and it is displayed on a display area 7 in a position which suits the caller. It is essential that the lid part 2 remains in this position during the call since otherwise the camera 8 would not transmit the wanted image.
  • the hinged mechanism 6 being stiff the lid part will stay in the required position.
  • the base part 1 has in the centre of its back a hub 12 upstanding which is attached the lid 2 by the hinge of the invention.
  • the hinge comprises two stub shafts 14 which project inwardly and which are adapted in use to fit into seatings 15, having '0' rings 16 which fit over the shafts 14 and locate within the seatings 15.
  • the hinge has a cover 17 which when the stub shafts are assembled within the hub 6 is fitted over the shafts 14 and is secured thereto by self-tapping screws 18 which are screwed into projections 19 and draw the cover down to preload the rings 16.
  • a cable not shown can extend to the video circuitry in the lid 2 via a tubular extension 10 which goes through one of the shafts 14.
  • the other shaft 14 is sealed by a hinged end cap 19 which fits over the end of the lid 2 adjacent the hub 12.
  • the lid 2 has the wires for the video unit connected to it via tubular extension 10 and the hinge cover 17 is placed on the hub 12 with the '0' rings in position in the grooves 15.
  • the screws 18 are tightened to secure the cover to give a sufficient resistance between the parts of the hinge.
  • the rings 16 are made of a nitryle rubber impregnated with an interstitial lubricant.
  • the material of the base part and the lid part 1, 2 respectively are moulded from ABS.
  • the range of frinctional torque which can be achieved by tightening the screws 18 is between 25 grammes and 70 grammes. This is sufficient to retain the normal weighted head or lid 2 in any position to which it is turned.
  • the hinge in accordance with the invention is designed to have a life of about 5 years and to operate satisfactorily through 60,000 open and closed cycles. Since the rings 16 are self-lubrieating they do not need any external lubrication to the hinge during its lifetime. The loading on the hinge once it is set should be sufficient to last throughout the life of the 60,000 cycles.
  • the invention gives by relying on the slipping between the outside of the rings 16 and the hub and cover grooves 15, an effective hinge mechanism which maintains the lid in a preset position without any risk of the hinge moving while the display is being viewed or the camera is operating the lid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Articulation pour visiophone comprenant une paire de faux arbres (14) dont chacun est muni d'un joint d'étanchéité (16). Les joints s'engagent dans des rainures (15) pratiquées dans un axe (6) de l'articulation, et sont précontraints par des vis (18) serrant sur lesdits joints un couvercle (17). Grâce à cette précontrainte, le couvercle du visiophone conserve l'orientation qu'on lui donne.
PCT/GB1993/000518 1992-03-13 1993-03-12 Mecanisme d'articulation pour visiophone WO1993018619A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9205580.5 1992-03-13
GB929205580A GB9205580D0 (en) 1992-03-13 1992-03-13 Videophone

Publications (1)

Publication Number Publication Date
WO1993018619A1 true WO1993018619A1 (fr) 1993-09-16

Family

ID=10712126

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/GB1993/000517 WO1993018607A1 (fr) 1992-03-13 1993-03-12 Perfectionnements apportes a la visiophonie
PCT/GB1993/000518 WO1993018619A1 (fr) 1992-03-13 1993-03-12 Mecanisme d'articulation pour visiophone

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000517 WO1993018607A1 (fr) 1992-03-13 1993-03-12 Perfectionnements apportes a la visiophonie

Country Status (2)

Country Link
GB (1) GB9205580D0 (fr)
WO (2) WO1993018607A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7792555B2 (en) * 2006-03-31 2010-09-07 Casio Hitachi Mobile Communications Co., Ltd. Hinge device and portable electronic apparatus

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9323223D0 (en) * 1993-11-10 1994-01-05 Visual Technologies Ltd Voice and image telecommunications apparatus
WO1996003837A1 (fr) * 1994-07-25 1996-02-08 Siemens Aktiengesellschaft Procede d'etablissement de liaisons et de commande de communications visiophoniques
DE19723678A1 (de) * 1997-06-05 1998-12-10 Siemens Ag Verfahren und Anordnung zur Kommunikation
AU2584999A (en) * 1998-02-05 1999-08-23 Gateway 2000, Inc. High-quality audio signals via telephone line
CN1402521A (zh) * 2001-08-10 2003-03-12 陆黛丽 一种万用通信系统
KR100901031B1 (ko) * 2002-11-28 2009-06-04 엘지전자 주식회사 영상 전화 시스템의 패킷화 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258387A (en) * 1979-10-17 1981-03-24 Lemelson Jerome H Video telephone
EP0309341A1 (fr) * 1987-09-25 1989-03-29 France Telecom Terminal de communication visuelle et sonore, notamment visiophone, à boîtier articulé
EP0310477A1 (fr) * 1987-09-25 1989-04-05 Jacques Guichard Terminal de communication visuelle et sonore comportant un dispositif d'éclairage d'appoint
US4856045A (en) * 1987-09-08 1989-08-08 Nec Corporation Display terminal for a videophone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2621767A1 (fr) * 1987-10-12 1989-04-14 Guichard Jacques Systeme de transmission d'image et de son
US5033062A (en) * 1989-05-30 1991-07-16 Morrow Stephen E Digital modem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4258387A (en) * 1979-10-17 1981-03-24 Lemelson Jerome H Video telephone
US4856045A (en) * 1987-09-08 1989-08-08 Nec Corporation Display terminal for a videophone
EP0309341A1 (fr) * 1987-09-25 1989-03-29 France Telecom Terminal de communication visuelle et sonore, notamment visiophone, à boîtier articulé
EP0310477A1 (fr) * 1987-09-25 1989-04-05 Jacques Guichard Terminal de communication visuelle et sonore comportant un dispositif d'éclairage d'appoint

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 16, no. 124 (E-1183)30 March 1992 *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 57 (E-1315)4 February 1993 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7792555B2 (en) * 2006-03-31 2010-09-07 Casio Hitachi Mobile Communications Co., Ltd. Hinge device and portable electronic apparatus

Also Published As

Publication number Publication date
GB9205580D0 (en) 1992-04-29
WO1993018607A1 (fr) 1993-09-16

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