GB2319416A - Mobile telephone with an aerial which projects away from a user's head to reduce interaction - Google Patents

Mobile telephone with an aerial which projects away from a user's head to reduce interaction Download PDF

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Publication number
GB2319416A
GB2319416A GB9802912A GB9802912A GB2319416A GB 2319416 A GB2319416 A GB 2319416A GB 9802912 A GB9802912 A GB 9802912A GB 9802912 A GB9802912 A GB 9802912A GB 2319416 A GB2319416 A GB 2319416A
Authority
GB
United Kingdom
Prior art keywords
antenna
portable telephone
receiver
head
radio apparatus
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
GB9802912A
Other versions
GB2319416B (en
GB9802912D0 (en
Inventor
Shigeo Yoshihara
Michio Nagai
Masaki Ichihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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
Priority claimed from JP5183099A external-priority patent/JP2576367B2/en
Priority claimed from JP5243679A external-priority patent/JP2821346B2/en
Application filed by NEC Corp filed Critical NEC Corp
Priority claimed from GB9414559A external-priority patent/GB2280322B/en
Publication of GB9802912D0 publication Critical patent/GB9802912D0/en
Publication of GB2319416A publication Critical patent/GB2319416A/en
Application granted granted Critical
Publication of GB2319416B publication Critical patent/GB2319416B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H01Q1/244Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/245Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/3833Hand-held transceivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216Foldable in one direction, i.e. using a one degree of freedom hinge
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0235Slidable or telescopic telephones, i.e. with a relative translation movement of the body parts; Telephones using a combination of translation and other relative motions of the body parts
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/03Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

A portable radio apparatus comprises a body having a front surface and a back surface opposed to said front surface, a receiver provided in said front surface, and an antenna provided on said body, said antenna being projected from said back surface of said body, whereby in use the antenna projects away from the operator's head.

Description

PORTABLE RADIO APPARATUS BACKGROUND OF THE INVENTION The present invention relates to a portable radio communication apparatus, and more particularly to an antenna arrangement for a portable radio communication apparatus.
In a conventional typical portable radio apparatus, an antenna and a receiver are disposed on an upper portion of the portable radio apparatus body. In particular, the receiver is fixed to the portable radio apparatus body, and a transmitter is provided in a lower portion of the body. In such a conventional portable radio apparatus, since the receiver is brought in close contact with the ear when calling, the antenna inevitably approaches the human head.
Thus, during calls made with the antenna close to the human head, the radio waves transmitted from or received by the antenna are adversely affected by the head, as a result of which there arise such problems that the radiation pattern of the transmitted radio waves gets warped, radio waves transmitted from certain directions are difficult to receive, and the reception sensitivity is liable to deteriorate.
Conventionally, as a portable radio apparatus in which such problems are solved, there has been known a structure in which an antenna is disposed on a side portion or on a lower portion of the apparatus body, as shown in Japanese Laid Open Patent Application Nos Sho 63-67032 and Hei 4-127723.
Further, as a different type, there has been proposed a portable radio apparatus having a structure in which radio waves are not radiated in the vicinity of the head, as disclosed in Japanese Laid Open Patent Application No Sho 59-92629.
SUMMARY OF THE INVENTION An object of at least the preferred embodiments of the present invention is to provide a novel portable radio apparatus which is capable of reducing the influence of the human head on radio waves transmitted from or received by an antenna as much as possible when calling.
The present invention provides a portable radio apparatus, comprising a body having a front surface and a back surface opposed to said front surface, a receiver provided in said front surface, and an antenna provided on said body, said antenna being projected from said back surface of said body, whereby in use the antenna projects away from the operator's head. With such a structure, at the time of calling, when the receiver is drawn out from the portable radio apparatus body to the human ear side so as to be brought into contact with the ear, since the antenna is away from the head to a certain degree, the influence of the head on the radio waves transmitted from or received by the antenna is reduced.
Further, in the portable radio apparatus of the present invention, the antenna is capable of being drawn out from the back of the body in order to keep the antenna away from the human head.
In most embodiments, the antenna projects out of a plane substantially parallel to the side of the operator's head.
As used herein the terms "receiver" and "transmitter" may include the complete receiver or transmitter, or just the transducer portion thereof (loudspeaker or microphone) or any intermediate combination of the transducer and part or all of its associated electronic circuitry, the remainder of the circuitry for example being housed in the body portion of the apparatus.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, serve to explain the objects, advantages and principles of the invention. In the drawings, Figs. 1A and 1 B are perspective views showing a non-calling state and a calling state of a portable telephone, respectively; Fig. 2 is a diagram for explaining an operating state of the portable telephone, Fig. 3 is a diagram for explaining an operating state of a conventional portable telephone; Figs. 4A and 4B are diagrams showing a state where an antenna is accommodated in a portable telephone body and a state where the antenna is drawn out from the portable telephone body, respectively; Figs. 5A and 5B are diagrams showing a non-call state and a call state of another portable telephone respectively; Figs. 6 to 8 show a perspective view of other portable telephones; Figs. 9A and 9B show a call state and a non-call state of another portable telephone; and Figs. 1 OA and lOB show a modification of the apparatus shown in Figs.
5A and 5B.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Figs. 1A and 1B show, as an example of a portable radio apparatus, a portable telephone in accordance with a first embodiment of the invention in which an antenna 2 is withdrawably accommodated in a portable radio apparatus body 1. A receiving portion 8 on which a receiver 3 is mounted is fitted by means of a hinge portion 7 to an upper portion of the body 1, and a transmitter 4 is provided on a lower portion of the body 1. In a non-call state, the antenna 2 is accommodated in the portable telephone body 1, and also the receiver 8 is in close contact with the portable telephone body 1 so that the portable transceiver is compact. In a call state, as shown in Fig. 13, the antenna 2 is drawn out from the portable telephone body 1, and the receiving portion 8 can be raised up fro the portable telephone body 1 to the ear of the user by rotation of the hinge 7.
Fig. 2 is a diagram showing an operating condition of the portable telephone.
As shown in the figure, when the receiver 3 of the body 1 is brought into close contact with the ear, the antenna 2 can be kept far apart from the head 5 of the user in comparison with a conventional operating condition shown in Fig. 3.
Figs. 4A and 4B show an example of a mechanism in which, when the antenna 2 is drawn out from the portable telephone body 1 in a call state, the receiving portion 8 can be automatically moved away from the portable telephone body 1.
Fig. 4A shows a state in which the antenna 2 is accommodated in the portable telephone body 1, whereas Fig. 4B shows a state in which the antenna 2 is drawn out from the body 1. A cord 18 is attached to the end of the antenna 2 and wound on the periphery of a pulley 15 via a roller 16. A gear 11 is fixed to the pulley 15 which rotates with the gear 11, whereas a gear 12 which interlocks the gear 11 is fixed to the receiving portion 8.
A hinge 7 is provided on the receiving portion 8 in such a manner that the receiving portion 8 is rotated by rotation of the gear 12. A spiral spring 13 is fitted to the hinge 7 in such a manner that a clockwise rotational force is alwavs exerted on the receiving portion 8 by the elastic force of the spiral spring 13 so that force is applied to the receiving portion 8 in the direction in which the receiving portion 8 is accommod2ted-in the portable telephone body 1. A spring-like claw 17 for stopping the antenna 2 is disposed on the antenna 2 so that the antenna 2 is not retracted again when it is drawn out from the body 1.
In the portable telephone thus constituted, when the antenna 2 is drawn out, the cord 18 is drawn in the direction indicated by an arrow (see Fig. 4B), to thereby make the pulley 15 rotate in the direction indicated by an arrow. As a result, the gear 12 as well as the gear 11 rotates so that the hinge 7 which supports the receiving portion 8 is rotated against the clockwise rotational force applied by the spiral spring 13, whereby the receiving portion 8 is rotated so as to be move away from the body 1 and be raised up as shown in the Fig. 4B.
When the antenna 2 has been drawn out, force is exerted on the antenna 2 in a direction in which the antenna 1 is drawn in. However, since the antenna 2 is stopped by the claw 17, the receiving portion 8 is also kept apart from the body 1.
Figs. 5A and 53 show another portable telephone.
In the figures a portable telephone body 1 includes an antenna 2, a receiver 3 on an upper portion thereof, and a transmitter on a lower portion thereof. In a non-call state, the antenna 2 is accommodated in the portable telephone body 1, and the receiver 3 is also accommodated in the portable telephone body 1 so that the portable telephone is made compact. On the other hand, in a call state, as shown in Fig. SB, the antenna 2 is drawn out and a receiving portion 8 per se containing the receiver 3 therein projects from the portable telephone body 1, as shown in Fig. 5B. Therefore, when the receiver 3 is brought into close contact with an ear of an operator, since the upper portion of the portable telephone body 1 is moved away from the ear, the antenna 2 is also inevitably moved away from the head of the operator.
The receiving portion 8 may be modified as shown in Figs. 13A and 13B. The receiving portion 8 shown in Figs. 13A and 13B is fitted by means of a hinge to the body 1 so that it freely projects from the body 1.
The - antenna 2 and receiver 3 may be drawn out by hand, and fixed with respect to the portable telephone body 1 by a springlike claw. Alternatively, as in the mechanism shown in the Figs. 4A and 4B, there can be provided a mechanism in which the antenna 2 is drawn out automatically project the receiver 3 from the portable telephone body 1 to the human ear.
Embodiments will be described in which an antenna is drawn out from the back, the side or the like of a portable telephone body to remove the influence of the human head on the antenna.
Referring to Fig. 6, a portable telephone includes an antenna 2 which is constituted so as to project upward from a middle portion of a back surface 22 of a portable telephone body 1.
In the above-mentioned embodiment shown in Fig. 6, the antenna 2 can be accommodated in the interior of the body.
Referring to Fig. 7, a portable telephone body 1 includes a front surface 21 with a receiver, a back surface 22 opposed to the front surface 21, and an upper surface 24 which is nearest the receiver among surfaces adjacent to the front surface 21 and the back surface 22. An antenna 2 is previously formed in a curved shape so as to be bent in a direction in which the antenna 2 moves away from the receiver (front surface 21) when it is drawn, and projects from the upper surface 24 of the body 1.
Further, as shown in Fig. 8, an antenna 2 may be projected from a middle portion of the back surface 22 of the portable telephone body 1.
Further, as shown in Fig. 9A, in the case of the portable telephone shown in Fig. 7, the antenna 2 is in its pre- ormed curved shape when the antenna 2 projects from the portable telephone body 1. On the other hand, when the antenna 2 is accommodated in the portable telephone body 1, as shown in Fig. 9B, the antenna 2 is inserted into a straight tube 30 disposed in interior of the body 1, thus being accommodated in the body 1. Also, the antenna 2 of the portable telephone shown in Fig. 8 is accommodated in the body 1 in the same manner.
The foregoing description of preferred embodiments of the invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of the invention. The embodiments were chosen and described in order to explain the principles of the invention and its practical application to enable one skilled in the art to utilize the invention in'various embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims appended hereto, and their equivalence.
Each feature disclosed in this specification (which term includes the claims) and/or shown in the drawings may be incorporated in the invention independently of other disclosed and/or illustrated features.

Claims (5)

CLAIMS:
1. A portable radio apparatus, comprising: a body having a front surface and a back surface opposed to said front surface; a receiver provided in said front surface; and an antenna provided on said body, said antenna being projected from said back surface of said body, whereby in use the antenna projects away from the operator's head.
2. A portable radio apparatus according to Claim 1, wherein said antenna is capable of being freely accommodated in and drawn out from said body.
3. A portable radio apparatus according to Claim 1 or 2, wherein said antenna is previously formed in a curved shape and bent in a direction in which said antenna is spaced apart from said receiver.
4. A portable radio apparatus as claimed in Claim 1, wherein said body is divided into an upper unit and a lower unit, and said receiver is provided on said upper unit.
5. A portable radio apparatus substantially as herein described with reference to Figure 6 of the accompanying drawings.
GB9802912A 1993-07-23 1994-07-19 Portable radio apparatus Expired - Lifetime GB2319416B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP5183099A JP2576367B2 (en) 1993-07-23 1993-07-23 Portable radio
JP5243679A JP2821346B2 (en) 1993-09-03 1993-09-03 Mobile phone
GB9414559A GB2280322B (en) 1993-07-23 1994-07-19 Portable radio apparatus

Publications (3)

Publication Number Publication Date
GB9802912D0 GB9802912D0 (en) 1998-04-08
GB2319416A true GB2319416A (en) 1998-05-20
GB2319416B GB2319416B (en) 1998-08-05

Family

ID=27267286

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9802912A Expired - Lifetime GB2319416B (en) 1993-07-23 1994-07-19 Portable radio apparatus
GB9802914A Expired - Lifetime GB2319417B (en) 1993-07-23 1994-07-19 Portable radio apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9802914A Expired - Lifetime GB2319417B (en) 1993-07-23 1994-07-19 Portable radio apparatus

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1021025A1 (en) * 1999-01-18 2000-07-19 Sony International (Europe) GmbH Hand-holdable radio communication device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8433378B2 (en) * 2009-02-19 2013-04-30 Kyocera Corporation Audio driver housing with expandable chamber for portable communication devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0588365A1 (en) * 1992-09-18 1994-03-23 ALCATEL ITALIA S.p.A. Portable transceiver apparatus, in particular radiomobile telephone set, with low irradiation of the user
EP0603012A1 (en) * 1992-12-18 1994-06-22 Nec Corporation Portable telephone set

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59205270D1 (en) * 1991-04-10 1996-03-21 Siemens Ag Two-way radio with associated device antenna

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0588365A1 (en) * 1992-09-18 1994-03-23 ALCATEL ITALIA S.p.A. Portable transceiver apparatus, in particular radiomobile telephone set, with low irradiation of the user
EP0603012A1 (en) * 1992-12-18 1994-06-22 Nec Corporation Portable telephone set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1021025A1 (en) * 1999-01-18 2000-07-19 Sony International (Europe) GmbH Hand-holdable radio communication device

Also Published As

Publication number Publication date
GB2319417B (en) 1998-08-05
GB9802914D0 (en) 1998-04-08
GB2319416B (en) 1998-08-05
GB9802912D0 (en) 1998-04-08
GB2319417A (en) 1998-05-20

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20140718

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20141023 AND 20141029