WO1998019434A1 - Appareil de telecommunication a double clavier numerique - Google Patents

Appareil de telecommunication a double clavier numerique Download PDF

Info

Publication number
WO1998019434A1
WO1998019434A1 PCT/US1997/019342 US9719342W WO9819434A1 WO 1998019434 A1 WO1998019434 A1 WO 1998019434A1 US 9719342 W US9719342 W US 9719342W WO 9819434 A1 WO9819434 A1 WO 9819434A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
keypad
disposed
closed position
housing
Prior art date
Application number
PCT/US1997/019342
Other languages
English (en)
Inventor
Seung K. Kim
Original Assignee
Ericsson Inc.
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 Ericsson Inc. filed Critical Ericsson Inc.
Priority to AU49192/97A priority Critical patent/AU4919297A/en
Publication of WO1998019434A1 publication Critical patent/WO1998019434A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0241—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call
    • H04M1/0245—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call using open/close detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/18—Details of telephonic subscriber devices including more than one keyboard unit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/22—Details of telephonic subscriber devices including a touch pad, a touch sensor or a touch detector

Definitions

  • This invention relates generally to portable telecommunication instruments, and more particularly to a dual keypad arrangement for such instruments.
  • the present invention is directed to overcoming the above problems. It is desirable to have a telecommunication instrument that provides for many more keyed input signals than is available with the single keypad commonly used on cellular phones and the like. It is also desirable to have a telecommunication instrument that provides for additional keyed input signals without increasing the overall size of the instrument.
  • a telecommunication instrument comprises a housing and a cover pivotally attached to the housing.
  • the cover is movable between a closed position at which the cover overlays a predefined portion of the housing and an open position at which the cover is spaced from the predefined portion of the housing.
  • the cover also includes a first keypad disposed on the first surface of the cover that is operable only when the cover is in the closed position, and a second keypad disposed on a second surface of the cover that is operable only when the cover is in the open position.
  • Other features of the telecommunication instrument embodying the present invention include at least one of the first and second keypads being a substantially flat membrane keypad having a plurality of separately defined touch sensitive areas disposed on the keypad.
  • first and second keypad being a plurality of touch sensitive keys, each of which provide tactile feedback to an operator of the keypad.
  • Still other features of the telecommunication instrument embodying the present invention include the instrument having a means for sensing the respective open and closed positions of the cover.
  • Fig. 1 is a plan view of a telecommunication instrument embodying the present invention, showing the pivotable cover in a closed position
  • Fig. 2 is a plan view of the telecommunication instrument embodying the present invention, showing the pivotable cover in an open position
  • Fig. 3 is a plan view of the telecommunication instrument embodying the present invention, showing an alternative attachment arrangement of the pivotable cover which is shown in an open position;
  • Fig. 4 is a schematic diagram showing a keypad switch matrix circuit of the telecommunication instrument embodying the present invention.
  • Fig. 5 is a schematic representation of a mechanically operable switch arrangement for providing a signal indicating the position of the cover
  • Fig. 6 is a schematic representation of an alternative arrangement of a switch for providing a signal indicating the position of the cover.
  • Fig. 7 is a schematic cross-sectional representation of the cover and housing showing a flexible cable connection between the two members.
  • a telecommunication instrument embodying the present invention is illustrated herein as a cellular telephone 10 having a movable cover 12 that is pivotably attached to a housing 14 comprising the main body of the instrument.
  • the main body, or housing, 14 of the cellular telephone 10 typically provides support for an antenna 16 and an enclosure for electronic circuitry providing the signal processing required for operation of the instrument 10.
  • the circuitry includes both RF signal processing circuits and keyboard logic decoding circuits .
  • the instrument 10 includes either two conventional logic decoding circuits, or a single circuit capable of operating in two modes, that is responsive to a signal representative of the open or closed position of the cover 12.
  • the cellular telephone 10 includes an LCD display screen 17 adapted to display received data and, in some applications, transmit data entered directly onto the screen 17.
  • the housing 14 also has an opening 18 to provide transmission of audible signals from an internal speaker to a user, and openings 20 to provide transmission of audible signals from a user to an internal microphone.
  • the flip cover 12 is pivotally attached to the housing 14 by hinges 22 disposed at one side of the cover 12 as shown in Fig. 2, or at the bottom of the cover as shown in Fig. 3.
  • the housing 14 and the frame of the cover 12 are injection molded of a thermoplastic or thermoset plastic material such as ABS resins, cellulosic plastics, phenolic resins, phenylene oxide resins, polycarbonate, polyester, polystyrene, polyurethane, or polyvinyl chloride.
  • the hinges 22 are thus integrally molded with the respective housing 14 and cover 12, and subsequently assembled by inserting a pin through both halves of the hinge or by the snap fit of one hinge with a mating portion of the other hinge.
  • the cover 12 also includes an opening 26, aligned with the slots 20 in the housing 14 when the cover 12 is closed, to provide for voice transmission to the microphone disposed in the housing 14.
  • the cover 12 also includes an opening 24 to provide visual observation of data displayed in a predesignated area of the LCD screen 17.
  • the cover 12 contains two keypads.
  • a first keypad 28 is disposed on an outer surface of the cover 12 when the cover is closed, and a second keypad 30 is disposed on the inner surface of the cover 12.
  • the first keypad 28 is desirably formed of a plurality of touch-responsive keys, each of which provide a tactile feedback to the operator of the keypad.
  • Keypads of this type are typically formed of silicone rubber with a conductive carbon pill attached to the bottom surface of each key.
  • the conductive carbon element provides a switch that closes a circuit across a pair of contacts provided on an underlying printed circuit board 32.
  • the second keypad 30 is a substantially flat membrane keypad having a plurality of separately defined touch sensitive areas. Keypads of this type are commonly used on thin "credit card” calculators and other keypad operated instruments that require a thin overall thickness. Thin membrane keypads typically have a flexible membrane cover which is imprinted with a plurality of characters. Under each of the characters, a thin conductor is shaped to span two contacts on an underlying printed circuit board. Depressing the membrane in the area of a particular character causes the underlying electrical conductor to complete a circuit across the associated contacts. In the illustrated embodiment, 60 separate areas are provided on the second keypad 30.
  • the 60 areas are thus capable of providing a full English alphabet arrangement and associated punctuation characters, in addition to numeric characters 0-9 and additional function keys.
  • the 60 character display may be imprinted with Japanese Kanj i characters, or other language characters.
  • the membrane keypad does not provide a tactile feedback to the user, but generates a beeping sound when a specific key is depressed, thus providing an audible feedback signal.
  • the thin membrane keypad is particularly suitable for operation on the inside surface of the cover 12 due to its substantially flat surface topography.
  • a sectional view of the first and second keypads 28, 30 is shown, in somewhat schematic fashion, in Fig. 7.
  • Fig. 4 shows a diagram of the electrical circuit 34 associated with each of the keypads 28, 30.
  • the lower area enclosed by dashed lines in Fig. 4 represents the portion of the electrical circuit supporting the first keypad 28 and the upper area enclosed by dashed lines represents the electrical circuit supporting the second keypad 30.
  • the electrical circuit is essentially an 8 x 8 matrix circuit (rows 1-8 and columns a-h) providing 64 switch contacts for the second keypad 30, although only 60 keys are actually used in the illustrative embodiment. It is desirable to provide separate input circuits for the first and second keypads 28,30 to avoid signal interference resulting from the accidental actuation of a key on the first keypad 28 when using the second keypad 30.
  • the first keypad 28 becomes the back cover and could be inadvertently pressed during use of the second keypad 30.
  • a separate switch on the printed circuit board 32 senses whether the cover 12 is in the open or closed position and, accordingly, which decoding logic circuit should be activated.
  • the cover position switch is a simple mechanical switch 36 that is depressed by a tab 37 extending downwardly from the cover 12. The mechanically operative switch 36 is moved from a normally open position to a closed position in response to the cover 12 being moved from the open to the closed position. The switch 36 is thus activated when the cover 12 is in the closed position.
  • the cover position switch may comprise a reed switch 38 that is activated by a magnet 40 disposed in an aligned portion of the cover 12, as shown in Fig. 6.
  • the reed switch 38 remains closed in the presence of the magnet 40, and is opened by movement of the cover 12 away from the closed position.
  • the switches 36, 38 alternatively provide a means for sensing the respective open and closed position of the cover 12 and providing a signal to the logic decoding circuitry of the cellular phone 10 representative of the position of the cover 12.
  • the first keypad 28 may also include a plurality of light-emitting diodes (LEDs) 42, arranged under the first keypad 28 as shown in Fig. 7, to provide illumination of the keypad 28 under low light conditions.
  • LEDs light-emitting diodes
  • the membrane keypad may also be backlit by using the same LEDs 42 that provide illumination of the keys of the front, or first, keypad 30.
  • This portion of the circuitry is also shown in the lower area enclosed by dashed lines in Fig. 4.
  • Communication of electrical signals between the first and second keypads 28, 30 disposed on the cover 12 and the keyboard logic circuitry of the phone 10 is provided by a flexible flat cable 44 having 21 leads disposed, typically in side-by-side relationship, within the cable 44. Two of the leads provide illumination of the LEDs 42, eight of the leads are connected to the columnar portion of the matrix circuit, represented by letters a-h in Fig. 4, and the remaining eleven leads are connected to rows 1-11 arrayed along the other axis of the matrix circuit in Fig. 4.
  • the cellular phone 10 embodying the present invention provides a telecommunication instrument having many additional keys, and alternate modes of operation, than provided by conventional single keyboard cellular telephones.
  • the cellular telephone 10 does not require any significantly increased volumetric size than conventional cellular phones, and provides a convenient flip cover function, which many users find desirable as an extension of the telephone.
  • the pivotally attached cover 12 may be constructed so that it is detachable from the housing 10 and the flexible cable 44 provided with connectors that enable the second keyboard 30 to be operated at a position remote from the housing 14 of the cellular phone 10.
  • the pivotally attached cover 12 may be constructed so that it is detachable from the housing 10 and the flexible cable 44 provided with connectors that enable the second keyboard 30 to be operated at a position remote from the housing 14 of the cellular phone 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
  • Telephone Set Structure (AREA)

Abstract

Deux claviers numériques sont disposés sur les deux cotés d'un couvercle (R) à va-et-vient monté de manière à pivoter sur le boîtier (14) d'un appareil de télécommunications, un téléphone cellulaire notamment. L'un des claviers est prêt à fonctionner lorsque le couvercle est en position fermée et l'autre lorsque le couvercle est en position ouverte.
PCT/US1997/019342 1996-10-29 1997-10-22 Appareil de telecommunication a double clavier numerique WO1998019434A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49192/97A AU4919297A (en) 1996-10-29 1997-10-22 Telecommunication apparatus having dual keypads

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73878196A 1996-10-29 1996-10-29
US08/738,781 1996-10-29

Publications (1)

Publication Number Publication Date
WO1998019434A1 true WO1998019434A1 (fr) 1998-05-07

Family

ID=24969452

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/019342 WO1998019434A1 (fr) 1996-10-29 1997-10-22 Appareil de telecommunication a double clavier numerique

Country Status (3)

Country Link
AU (1) AU4919297A (fr)
CO (1) CO4750746A1 (fr)
WO (1) WO1998019434A1 (fr)

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WO2000065804A1 (fr) 1999-04-22 2000-11-02 Nokia Corporation Dispositif portable de communication
WO2000069149A1 (fr) 1999-05-06 2000-11-16 Qualcomm Incorporated Detection de la position de fermeture pliee d'un telephone pliable
WO2000069033A1 (fr) * 1999-05-06 2000-11-16 Qualcomm Incorporated Connexion a deux broches pour clavier de telephone portable
WO2000069150A1 (fr) * 1999-05-06 2000-11-16 Qualcomm Incorporated Selection du mode de fonctionnement d'un telephone pliable avec la position pliee
WO2000069151A1 (fr) * 1999-05-06 2000-11-16 Qualcomm Incorporated Telephone pliable avec anp et selection de mode
EP1076281A2 (fr) * 1999-08-11 2001-02-14 Nokia Mobile Phones Ltd. Appareil muni d'un écran d'affichage sensible au toucher
EP1089525A2 (fr) * 1999-09-28 2001-04-04 TECDIS S.p.A. Un téléphone
WO2001069805A1 (fr) 2000-03-14 2001-09-20 Samsung Electronics Co., Ltd Combine assistant numerique personnel/telephone
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Cited By (81)

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Publication number Priority date Publication date Assignee Title
WO2000054480A1 (fr) * 1999-03-12 2000-09-14 Robert Bosch Gmbh Appareil electronique dote d'une unite d'affichage et d'utilisation universelle
US6542606B1 (en) 1999-04-22 2003-04-01 Nokia Corporation Portable communication device
WO2000065804A1 (fr) 1999-04-22 2000-11-02 Nokia Corporation Dispositif portable de communication
WO2000069150A1 (fr) * 1999-05-06 2000-11-16 Qualcomm Incorporated Selection du mode de fonctionnement d'un telephone pliable avec la position pliee
WO2000069149A1 (fr) 1999-05-06 2000-11-16 Qualcomm Incorporated Detection de la position de fermeture pliee d'un telephone pliable
WO2000069151A1 (fr) * 1999-05-06 2000-11-16 Qualcomm Incorporated Telephone pliable avec anp et selection de mode
US6434404B1 (en) 1999-05-06 2002-08-13 Qualcomm, Incorporated Detection of flip closure state of a flip phone
KR100825245B1 (ko) * 1999-05-06 2008-04-25 퀄컴 인코포레이티드 전자 장치의 열린/닫힌 상태를 검출하는 시스템 및 방법
AU767415B2 (en) * 1999-05-06 2003-11-06 Qualcomm Incorporated Detection of flip closure state of a flip phone
AU766840B2 (en) * 1999-05-06 2003-10-23 Qualcomm Incorporated Selecting flip phone operating mode using flip position
KR100742547B1 (ko) * 1999-05-06 2007-07-25 퀄컴 인코포레이티드 플립 위치를 이용한 플립 폰 동작 모드의 선택
KR100795739B1 (ko) 1999-05-06 2008-01-17 퀄컴 인코포레이티드 플립 위치를 이용한 플립 폰 동작 모드의 선택
WO2000069033A1 (fr) * 1999-05-06 2000-11-16 Qualcomm Incorporated Connexion a deux broches pour clavier de telephone portable
US6434371B1 (en) 1999-05-06 2002-08-13 Qualcomm, Incorporated Selecting flip phone operating mode using flip position
US6573886B1 (en) 1999-08-11 2003-06-03 Nokia Mobile Phones Limited Device with touch sensitive screen
EP1076281A3 (fr) * 1999-08-11 2002-05-08 Nokia Corporation Appareil muni d'un écran d'affichage sensible au toucher
EP1076281A2 (fr) * 1999-08-11 2001-02-14 Nokia Mobile Phones Ltd. Appareil muni d'un écran d'affichage sensible au toucher
EP1089525A3 (fr) * 1999-09-28 2003-04-02 TECDIS S.p.A. Un téléphone
EP1089525A2 (fr) * 1999-09-28 2001-04-04 TECDIS S.p.A. Un téléphone
US7412258B1 (en) * 1999-11-24 2008-08-12 Nokia Corporation Electronic device and a method in an electronic device
EP1186111A4 (fr) * 2000-03-14 2006-11-22 Samsung Electronics Co Ltd Combine assistant numerique personnel/telephone
EP1186111A1 (fr) * 2000-03-14 2002-03-13 Samsung Electronics Co., Ltd. Combine assistant numerique personnel/telephone
WO2001069805A1 (fr) 2000-03-14 2001-09-20 Samsung Electronics Co., Ltd Combine assistant numerique personnel/telephone
DE10014166C2 (de) * 2000-03-23 2002-10-02 Gisela Uhlemann Mobilfunkgerät mit umklappbarer Tastatur
EP1137239A1 (fr) * 2000-03-23 2001-09-26 Gisela Uhlemann Clavier alphanumérique pliable pour des radiotéléphones
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