WO2008015901A1 - Dispositif terminal portable et son boîtier - Google Patents
Dispositif terminal portable et son boîtier Download PDFInfo
- Publication number
- WO2008015901A1 WO2008015901A1 PCT/JP2007/064059 JP2007064059W WO2008015901A1 WO 2008015901 A1 WO2008015901 A1 WO 2008015901A1 JP 2007064059 W JP2007064059 W JP 2007064059W WO 2008015901 A1 WO2008015901 A1 WO 2008015901A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terminal device
- sound
- housing
- speaker
- sound hole
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
- H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
-
- 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
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
- H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
-
- 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
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/16—Details of telephonic subscriber devices including more than one display unit
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
Definitions
- Portable terminal device and casing for portable terminal device are Portable terminal device and casing for portable terminal device
- the present invention relates to a mobile terminal device such as a mobile phone terminal device in which a speaker sound hole is provided on a side surface of a housing and a main display portion is provided on the front surface of the housing, and in particular, a main display portion is provided.
- the present invention relates to a technology for improving the directivity of sound pressure in the forward direction of a terminal.
- the conventional mobile phone terminal device described in Patent Document 1 is provided with a main display portion on the front surface of the housing and a speaker sound hole on the back surface of the housing. Furthermore, a sound emission control member is arranged on the rear surface of the housing so as to cover the sound sound hole, and an opening for emitting sound generated by the speaker toward the upper surface of the housing is formed in the sound emission control member.
- a sound emission control member is arranged on the rear surface of the housing so as to cover the sound sound hole, and an opening for emitting sound generated by the speaker toward the upper surface of the housing is formed in the sound emission control member.
- FIG. 1 is a diagram illustrating a configuration example of a conventional mobile phone terminal device in which speaker sound holes are provided on a side surface of a casing as described in Patent Document 2, and FIGS. ), (C) are a front view, a side view, and a rear view of the mobile phone terminal device.
- the conventional mobile phone terminal device includes a first casing 1 and a second casing 2, and the first casing 1 and the second casing 2 are provided.
- the casing 2 is rotatably connected by a hinge part 3.
- the front surface of the first housing 1 is provided with a receiving unit 101 and a main display unit 102 composed of an LCD. Inside the housing 1, two speakers 103 and 104 are accommodated. Has been.
- a key operation unit 21 including a numeric keypad and a transmission unit 22 are provided on the front surface of the second casing 2.
- three speaker sound holes 105 to 107 are provided on the side surface of the first housing 1 for guiding the sound generated by the speaker 103 to the outside of the housing.
- the speaker sound holes 105 to 107 are provided on the back side (rear side) with respect to the central portion of the side surface.
- a speaker sound hole for guiding the sound generated by the speaker 104 to the outside of the housing is provided on the surface opposite to the surface where the speaker sound holes 105 to 107 are provided. Is provided.
- a sub-display unit 108 constituted by an LCD is provided on the back surface of the first housing 1.
- FIG. 2 is a cross-sectional view showing a cross-sectional shape of the aa ′ part of FIG. 1 (A).
- the speaker 103 is fixed to the back surface of the housing 1, and the sound generated by the speaker 103 is guided to the outside of the housing 1 through the sound hole 106.
- the illustration of the substrate and electronic components is omitted.
- Patent Document 1 Japanese Patent Laid-Open No. 2002-344602
- Patent Document 2 JP 2006-157464 A
- the main display unit includes a videophone function and a TV reception function.
- a function to listen to the sound output from the speaker while viewing the displayed image is also added.
- FIG. 3 is a diagram showing a simulation result of the sound pressure directivity characteristics of the mobile phone terminal device in which the speaker sound holes 105 to 107 are arranged on the rear side of the housing as shown in FIGS. 1 and 2.
- (A), (B), (C), and (D) show the simulation results of the sound pressure directivity characteristics at frequencies lk Hz, 2 kHz, 5 kHz, and 10 kHz, respectively.
- the simulation was performed under the following conditions.
- the length, width, and thickness of case 2 are 10 cm, 5 cm, and 1 cm, respectively.
- the sound hole area is 15 mm 2
- the sound hole length is 1 mm
- the particle speed lm / sec is given to the sound hole end as a boundary condition.
- the sound pressure at a distance of 10 cm is simulated by rotating the case 1 around the central axis in the length direction.
- an object of the present invention is to increase sound pressure in the forward direction of a terminal in a mobile terminal device in which a speaker sound hole is provided on a side surface of the terminal.
- a first portable terminal device includes:
- the housing portion near the exit of the sound hole that guides the sound generated by the built-in speaker to the side of the terminal is processed into a shape that increases the sound pressure in the forward direction of the terminal.
- a second portable terminal device is the first portable terminal device,
- the housing portion on the rear side of the terminal from the sound hole protrudes in the lateral direction from the housing portion on the front side of the terminal.
- a third portable terminal device is the second portable terminal device
- a convex portion is formed in the casing portion on the rear side of the terminal with respect to the sound hole.
- a fourth portable terminal device is characterized in that, in the second or third portable terminal device, an inclined portion is formed in a housing portion on the rear side of the terminal with respect to the sound hole.
- a fifth portable terminal device is characterized in that, in the first or second portable terminal device, a notch is formed in a housing portion on the front side of the terminal with respect to the sound hole.
- a first mobile terminal device casing according to the present invention includes:
- the housing portion near the exit of the sound hole that guides the sound generated by the built-in speaker to the side of the terminal is processed into a shape that increases the sound pressure in the forward direction of the terminal.
- a second mobile terminal device casing according to the present invention is the first mobile terminal device casing
- the housing portion on the rear side of the terminal from the sound hole protrudes in the lateral direction from the housing portion on the front side of the terminal.
- the sound generated by the speaker is guided to the side of the terminal through the sound hole and radiated to the outside.
- the casing near the sound hole outlet is processed into a shape that increases the sound pressure in the forward direction of the terminal, so the sound pressure in the forward direction of the terminal is increased.
- the shape for increasing the sound pressure in the front direction of the terminal is, for example, a shape in which the casing portion on the rear side of the terminal with respect to the sound hole protrudes laterally from the casing portion on the front side of the terminal. I can do it.
- the present invention in a mobile terminal device having a sound hole on a side surface, in the forward direction of the terminal.
- the effect that the sound pressure can be increased can be obtained.
- the sound becomes easy to hear.
- the reason is that the casing near the sound hole outlet is processed into a shape that increases the sound pressure in the forward direction of the terminal.
- a first embodiment of a mobile phone terminal device will be described.
- This embodiment is characterized in that a convex portion is provided on the rear side of the speaker sound hole on the terminal side surface in order to increase the sound pressure in the forward direction of the mobile phone terminal device.
- FIG. 4 is a diagram showing a configuration example of the first embodiment of the mobile phone terminal device according to the present invention.
- FIGS. 4A, 4 B, and 4 C are respectively diagrams of the mobile phone terminal device. It is a front view, a side view, and a rear view.
- FIG. 5 is a cross-sectional view showing the cross-sectional shape of the aa ′ portion in FIG. 4 (A). 4 and 5, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals.
- the chassis 1 has built-in speakers 103 and 104 of an electromagnetic drive system, an electrodynamic drive system, an electrostatic drive system, or a piezoelectric drive system.
- an electromagnetic drive system On the right side surface, three speaker sound holes 105 to 107 for guiding sound generated by the speaker 103 to the outside of the housing 1 are provided.
- a convex portion 109 protruding in the lateral direction is formed in the casing portion on the rear side of the terminal with respect to the speaker sound holes 105 to 107.
- the length in the horizontal direction of the convex portion 109 can be, for example, about 2 mm, and the length in the vertical direction can be about the same as the length of the portion where the speaker sound holes 105 to 107 are arranged.
- the length of the convex portion 109 in the vertical direction may be longer than the length of the portion where the speaker sound holes 105 to 107 are disposed.
- three speaker sound holes are provided on the left side surface of the housing 1, and the housing portion on the rear side of the terminal with respect to the speaker sound holes is provided.
- a convex portion 110 having the same shape as the convex portion 109 is formed.
- the convex portions 109 and 110 are configured to transmit sound radiated from the speaker sound holes 105 to 107 toward the rear side of the housing. Acts as an acoustic barrier to prevent progression. As a result, the sound pressure toward the rear side of the casing is reduced and the sound pressure toward the front side of the casing is increased.
- FIG. 6 is a diagram showing a simulation result of the sound pressure directivity characteristic of the mobile phone terminal device that is useful in the present embodiment.
- Figures (A), (B), (C), and (D) show the simulation results of sound pressure directivity characteristics at frequencies of 1 kHz, 2 kHz, 5 kHz, and 10 kHz, respectively.
- the horizontal and vertical lengths of the convex portions 109 and 110 were set to 2 mm and 25 mm, respectively, and the other conditions were the same as in the simulation of the conventional mobile phone terminal device.
- the present embodiment it is possible to obtain an effect that the sound pressure in the forward direction of the terminal can be increased. As a result, when listening to the sound while watching the image displayed on the main display unit 102 arranged in front of the terminal, the sound can be easily heard. The reason is that the convex portions 109 and 110 are formed in the casing portion on the rear side of the terminal with respect to the speaker sound holes 105 to 107.
- the present embodiment is characterized in that the outlet of the speaker sound hole is inclined in the front direction, and the housing part on the rear side of the speaker sound hole protrudes in the lateral direction from the housing part on the front side.
- FIG. 7 is a cross-sectional view showing a cross-sectional shape of the mobile phone terminal device according to the present embodiment, and shows a cross-sectional shape of a part corresponding to the aa ′ part of FIG. 4 (A)! / Speak.
- the portion near the back of the right side surface of the housing 1 is inclined to the front side, and the speaker sound hole 106 for guiding the sound generated by the speaker 103 to the inclined portion 111 to the outside.
- the rear housing part force with respect to the speaker sound hole 106 is formed, and the convex part 109a protruding in the lateral direction with respect to the front housing part 112 is formed.
- the tip portion of the convex portion 109a is inclined to the front side.
- the angle of the inclined part 111 For example, it can be set to about 30 degrees with respect to the front side.
- the lengths of the convex portions 109a in the horizontal direction and the vertical direction can be approximately the same as those of the convex portions 109 in the first embodiment.
- the left side surface of the housing 1 is also provided with a convex portion and an inclined portion having the same shape as the convex portion 109a and the inclined portion 111.
- the second embodiment is the same as the first embodiment.
- the convex portion 109a functions as an acoustic noria like the convex portion 109, and increases the sound pressure on the front side by suppressing the progression of the sound radiated from the speaker sound hole 106 in the rear direction.
- FIG. 8 is a diagram showing a simulation result of the sound pressure directivity characteristic of the mobile phone terminal device that is useful in the present embodiment.
- Figures (A), (B), (C), and (D) show the simulation results of sound pressure directivity characteristics at frequencies of 1 kHz, 2 kHz, 5 kHz, and 10 kHz, respectively.
- the angle of the inclined portion 111 is set to 30 degrees
- the length of the convex portion 109 in the horizontal direction and the vertical direction is set to 2 mm and 25 mm, respectively.
- the sound pressure in the front direction is improved by about 2 dB to 3 dB at a high frequency of 2 kHz or higher.
- the convex portion 109 a is formed in the casing portion on the rear side of the terminal with respect to the speaker sound hole 106.
- the present embodiment is characterized in that a notch is provided in the housing portion on the front side of the terminal with respect to the speaker sound hole.
- FIG. 9 is a cross-sectional view showing a cross-sectional shape of the mobile phone terminal device according to the present embodiment.
- the sound generated by the speaker 103 is transmitted to the outside of the housing 1 on the right side surface of the housing 1.
- a speaker sound hole 106 for guiding is provided, and a housing portion on the rear side of the speaker sound hole 106 is processed into a convex portion 109 projecting laterally from the front side.
- a notch 113 is formed in the housing part on the front side of the speaker sound hole 106. This notch 113 is designed so that the diameter of the speaker sound hole 106 increases as it approaches the exit, so that sound is easily transmitted in the front direction.
- the configuration of the left side surface of the housing 1 is the same as that of the right side surface. Except for the points described above, the second embodiment is the same as the first embodiment.
- the convex portion 109 acts as an acoustic barrier, and the notch portion 113 facilitates the transmission of sound in the front direction of the mobile phone terminal device, so that the sound pressure in the front direction can be increased. It should be noted that the sound pressure in the front direction can be increased by simply providing the notch 113 without providing the convex 109 as compared with the conventional mobile phone terminal device.
- the present invention is applied to a mobile phone terminal device having a fold shape structure.
- the present invention has a candy bar shape structure or a slide shape structure.
- the present invention can also be applied to a mobile phone terminal device.
- the speaker sound hole may be provided on the front side with respect to the force that is provided on the rear side with respect to the central portion of the side surface of the housing.
- the convex portion 109 is formed in the housing portion on the rear side of the terminal with respect to the speaker sound hole 106, and the notch portion 113 is formed on the front side of the terminal with respect to the speaker sound hole 106.
- the present invention has a display unit on the front surface of the housing and a speaker sound hole on the side surface of the housing, so that the sound emitted from the speaker sound hole force can be heard while viewing the image displayed on the display unit.
- the present invention is preferably applied to a mobile terminal device such as a mobile phone terminal device that performs various uses.
- FIG. 1 is a front view, a side view, and a rear view showing a configuration example of a conventional mobile phone terminal device.
- FIG. 2 is a cross-sectional view showing a cross-sectional shape in the vicinity of a speaker sound hole 106 of a conventional mobile phone terminal device.
- FIG. 3 is a diagram showing a simulation result of sound pressure directivity characteristics of a conventional mobile phone terminal device.
- FIG. 4 is a front view, a side view, and a rear view showing a configuration example of the first embodiment of the mobile phone terminal device according to the present invention.
- FIG. 5 is a cross-sectional view showing a cross-sectional shape in the vicinity of a speaker sound hole 106 of the mobile phone terminal device that is effective in the first embodiment.
- FIG. 6 is a diagram showing a simulation result of sound pressure directivity characteristics of the mobile phone terminal according to the first exemplary embodiment.
- FIG. 7 is a cross-sectional view showing a cross-sectional shape in the vicinity of a speaker sound hole 106 of a mobile phone terminal device according to a second embodiment.
- FIG. 8 is a diagram showing a simulation result of sound pressure directivity characteristics of the mobile phone terminal according to the second embodiment.
- FIG. 9 is a cross-sectional view showing a cross-sectional shape in the vicinity of a sound hole 106 of a mobile phone terminal device according to a third embodiment.
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07790821A EP2048894A4 (en) | 2006-08-03 | 2007-07-17 | PORTABLE END UNIT AND HOUSING FOR A PORTABLE TERMINAL |
US12/374,953 US20090253471A1 (en) | 2006-08-03 | 2007-07-17 | Portable terminal device and case for the same |
JP2008527700A JP5200934B2 (ja) | 2006-08-03 | 2007-07-17 | 携帯端末装置及び携帯端末装置用筐体 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-211666 | 2006-08-03 | ||
JP2006211666 | 2006-08-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008015901A1 true WO2008015901A1 (fr) | 2008-02-07 |
Family
ID=38997082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/064059 WO2008015901A1 (fr) | 2006-08-03 | 2007-07-17 | Dispositif terminal portable et son boîtier |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090253471A1 (ja) |
EP (1) | EP2048894A4 (ja) |
JP (1) | JP5200934B2 (ja) |
CN (1) | CN101502128A (ja) |
WO (1) | WO2008015901A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180092155A (ko) * | 2017-02-08 | 2018-08-17 | 삼성전자주식회사 | 전자 장치 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20130040600A (ko) * | 2011-10-14 | 2013-04-24 | 삼성전자주식회사 | 휴대용 단말기 |
EP2913987B1 (en) * | 2012-10-29 | 2019-04-17 | NEC Corporation | Mobile terminal device and method for manufacturing the same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0453393U (ja) * | 1990-09-13 | 1992-05-07 | ||
JPH0565196U (ja) * | 1992-02-12 | 1993-08-27 | 三菱電機株式会社 | スピーカシステム |
JP2002344602A (ja) | 2001-05-22 | 2002-11-29 | Mitsubishi Electric Corp | 携帯機器 |
JP2003158565A (ja) * | 2001-11-21 | 2003-05-30 | Kenwood Corp | 携帯電話機におけるスピーカ部の取付構造 |
JP2006157464A (ja) | 2004-11-29 | 2006-06-15 | Kyocera Corp | 音響装置 |
JP2006211666A (ja) | 2005-01-26 | 2006-08-10 | Robert Bosch Gmbh | マイクロホン |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5723662U (ja) * | 1980-07-11 | 1982-02-06 | ||
US5703947A (en) * | 1994-05-17 | 1997-12-30 | Sony Corporation | Portable telephone equipment for biasing a switching member to a normally neutral position |
JP3514857B2 (ja) * | 1995-02-06 | 2004-03-31 | 株式会社東芝 | テレビジョンセットのスピーカシステム |
US5832079A (en) * | 1996-05-03 | 1998-11-03 | Ericsson Inc. | Acoustic horn for use in cellular flip phones |
US20020009195A1 (en) * | 1999-10-26 | 2002-01-24 | Telefonaktiebolaget Lm Ericsson | Holder for mobile telephones |
EP1257147B1 (en) * | 2001-05-08 | 2004-12-29 | Matsushita Electric Industrial Co., Ltd. | Speaker and mobile terminal device |
GB2377116A (en) * | 2001-06-29 | 2002-12-31 | Nokia Corp | A holder for a portable telephone with an amplifying horn |
US20040259602A1 (en) * | 2003-06-18 | 2004-12-23 | Naomi Zack | Apparatus and method for reducing sound in surrounding area resulting from speaking into communication device |
JP4405237B2 (ja) * | 2003-10-31 | 2010-01-27 | ソニー・エリクソン・モバイルコミュニケーションズ株式会社 | 卓上ホルダ及び視聴システム |
JP4461778B2 (ja) * | 2003-11-19 | 2010-05-12 | 日本電気株式会社 | 携帯端末機器 |
-
2007
- 2007-07-17 WO PCT/JP2007/064059 patent/WO2008015901A1/ja active Application Filing
- 2007-07-17 CN CNA200780028940XA patent/CN101502128A/zh active Pending
- 2007-07-17 JP JP2008527700A patent/JP5200934B2/ja not_active Expired - Fee Related
- 2007-07-17 EP EP07790821A patent/EP2048894A4/en not_active Withdrawn
- 2007-07-17 US US12/374,953 patent/US20090253471A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0453393U (ja) * | 1990-09-13 | 1992-05-07 | ||
JPH0565196U (ja) * | 1992-02-12 | 1993-08-27 | 三菱電機株式会社 | スピーカシステム |
JP2002344602A (ja) | 2001-05-22 | 2002-11-29 | Mitsubishi Electric Corp | 携帯機器 |
JP2003158565A (ja) * | 2001-11-21 | 2003-05-30 | Kenwood Corp | 携帯電話機におけるスピーカ部の取付構造 |
JP2006157464A (ja) | 2004-11-29 | 2006-06-15 | Kyocera Corp | 音響装置 |
JP2006211666A (ja) | 2005-01-26 | 2006-08-10 | Robert Bosch Gmbh | マイクロホン |
Non-Patent Citations (1)
Title |
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See also references of EP2048894A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180092155A (ko) * | 2017-02-08 | 2018-08-17 | 삼성전자주식회사 | 전자 장치 |
KR102671346B1 (ko) * | 2017-02-08 | 2024-06-03 | 삼성전자 주식회사 | 전자 장치 |
Also Published As
Publication number | Publication date |
---|---|
CN101502128A (zh) | 2009-08-05 |
EP2048894A4 (en) | 2011-04-20 |
EP2048894A1 (en) | 2009-04-15 |
JP5200934B2 (ja) | 2013-06-05 |
JPWO2008015901A1 (ja) | 2009-12-17 |
US20090253471A1 (en) | 2009-10-08 |
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