JPS61139189A - Handset - Google Patents
HandsetInfo
- Publication number
- JPS61139189A JPS61139189A JP26237584A JP26237584A JPS61139189A JP S61139189 A JPS61139189 A JP S61139189A JP 26237584 A JP26237584 A JP 26237584A JP 26237584 A JP26237584 A JP 26237584A JP S61139189 A JPS61139189 A JP S61139189A
- Authority
- JP
- Japan
- Prior art keywords
- ear
- sound
- housing
- handset
- change
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Telephone Set Structure (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電話機に主に用いられているハンドセットに
関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a handset mainly used in telephones.
従来の挟術
従来のハンドセットについて第3図及び第4図を用いて
説明する。第3図は従来の電話用ハンドセットの受話部
分の断面口で、1はハンドセットのハウジング、2は受
話0部、3は受話用ユニット、4は受話用ユニット3の
@動板である。このハンドセットを受聴するときは、ハ
ウジング1の受話口部2を耳に当てるが、このとき受話
用ユニット3の振動板4の前部に小ざな密閉容積部分が
構成される。そしてこの状態で所定の音響特性が得られ
るように設計されている。A conventional handset will be described with reference to FIGS. 3 and 4. FIG. FIG. 3 is a cross-sectional view of the receiving portion of a conventional telephone handset, where 1 is the housing of the handset, 2 is the receiving unit 0, 3 is the receiving unit, and 4 is the moving plate of the receiving unit 3. When listening to this handset, the earpiece 2 of the housing 1 is placed against the ear. At this time, a small sealed volume is formed in front of the diaphragm 4 of the receiving unit 3. It is designed so that predetermined acoustic characteristics can be obtained in this state.
発明が解決しようとする問題点
上記従来構成によれば、受話口81$2と耳との間にF
ji間ができると、空気が外に洩れ、特に低音部のレベ
ルが低下してキンキンした傾向の音になる。Problems to be Solved by the Invention According to the above conventional configuration, there is no F between the earpiece 81$2 and the ear.
When a gap is created, air leaks outside, and the level of the bass region in particular decreases, resulting in a harsher sound.
第4図にこのときの特性変化を示すが、わずか0、5m
−の隙間でも、大きな特性変化を示すことがわかる。Figure 4 shows the characteristic change at this time, which is only 0.5 m.
It can be seen that even a gap of - shows a large change in characteristics.
本発明は上記問題点を解消したハンドセットを提供する
ことを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a handset that solves the above problems.
問題を解決するための手段
上記問題を解決するため、本発明のハンドセットは、ハ
ウジングの受話口部外側周辺部に、受話用ユニットの振
動板の前面と後面とを音響的に結合させる音孔を形成し
たものである。Means for Solving the Problems In order to solve the above-mentioned problems, the handset of the present invention includes a sound hole on the outer peripheral part of the earpiece of the housing to acoustically couple the front and rear surfaces of the diaphragm of the earpiece unit. It was formed.
作用
上記構成において、ハンドセットを耳へ凹着させた場合
でも、音孔から音波の一部がハウジング内部へ漏洩し、
ハンドセントと耳との間に隙間がある場合と近似の動作
になる。Effect With the above configuration, even when the handset is placed in the ear, some of the sound waves leak into the housing from the sound hole.
The behavior is similar to when there is a gap between the hand center and the ear.
X流側
以下、本発明の一実施例を第1図〜第2図に基づいて説
明する。X Flow Side Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 and 2.
第1図は本発明の一実施例におけるハンドセットの受話
部分の一部切欠側面図で、第3図に示す構成要素と同一
の構成要素には同一の符号を付してその説明を省略する
。第1図において、5は音孔であり、この音孔5は、ハ
ウジング1の受話口部2の外側周辺部に複数個設けられ
ており、ハウジング1の内部と外部とを連通させ、受話
用ユニット3の振動板4の前面と後面とを音響的に結合
する。FIG. 1 is a partially cutaway side view of a receiver part of a handset according to an embodiment of the present invention, and the same components as those shown in FIG. In FIG. 1, reference numeral 5 denotes a sound hole. A plurality of sound holes 5 are provided around the outside of the earpiece 2 of the housing 1, and are used to communicate between the inside and outside of the housing 1. The front and rear surfaces of the diaphragm 4 of the unit 3 are acoustically coupled.
以下、上記構成における作用について説明する。The effects of the above configuration will be explained below.
上記ハンドセットは、耳へ密着した場合も音孔5から音
波の一部がハウジング1の内部へ漏洩するため、受話口
部2の部分の音圧上昇は少なくなる。Even when the handset is placed in close contact with the ear, some of the sound waves leak into the housing 1 from the sound hole 5, so that the rise in sound pressure at the earpiece 2 is reduced.
すなわちハンドセットと耳との間に隙間がある場合と近
似の動作になるため、耳との密着状況が変化しても音W
時性の変化が少ないわけである。In other words, the operation is similar to that when there is a gap between the handset and the ear, so even if the close contact with the ear changes, the sound W
This means that there are few changes in temporality.
なお、耳へ音を伝える受話口部2と、内部へ音を逃す音
孔5との関係は、音孔5の方の音響インピーダンスを大
きくして、耳へ伝わる音のエネルギが減少しすぎないよ
うにする。The relationship between the earpiece 2, which transmits sound to the ear, and the sound hole 5, which allows sound to escape to the inside, is such that the acoustic impedance of the sound hole 5 is increased so that the energy of the sound transmitted to the ear is not reduced too much. do it like this.
また、従来の構成では、音孔5が存在しないため、耳と
ハンドセットとの間の容積は密閉状態になって1llf
’l”l、ているが、本実施例では開放状態である。従
って所望の音響特性を実理するための受話用ユニット3
の設計条件は、従来と異なり、そのto(R低共振周波
数)を必要な再生帯域の下限(300〜5OOH)付近
に設定しておく必要がある。In addition, in the conventional configuration, since the sound hole 5 does not exist, the volume between the ear and the handset is in a sealed state and is 1lllf.
'l'l, but in this embodiment it is in an open state.Therefore, the receiving unit 3 is used to realize the desired acoustic characteristics.
The design conditions are different from the conventional ones, and it is necessary to set the to (R low resonance frequency) near the lower limit of the required reproduction band (300 to 5 OOH).
本実施例のハンドセットにおいて、耳との!!FW状況
が変化したときの特性変化例を第2図に示す。In the handset of this embodiment, the ear! ! FIG. 2 shows an example of changes in characteristics when the FW situation changes.
第4図の従来例に比べて特性変化が少なくなっているこ
とがわかる。It can be seen that the change in characteristics is smaller compared to the conventional example shown in FIG.
発明のvJ果
以上述べたごとく本発明によれば、ハンドセットと耳と
の合着状況の変化による音質変化を小ざくできる。VJ Results of the Invention As described above, according to the present invention, changes in sound quality due to changes in the state of contact between the handset and the ear can be reduced.
第1図は本発明の−*厖例におけるハンドセットの受話
部分の一部切欠側面図、第2図は同ハンドセットにおい
て耳との密着状況が変化したときの特性変化の説明図、
第3図は従来のハンドセットの受話部分の断面図、第4
図は同ハンドセットに5いて耳との密着状態が変化した
ときの特性変化の説明図である。
1・・・ハウジング、2・・・受話口部、3・・・受話
用ユニット、4・・・振動板、5・・・音孔代理人
森 本 義 弘
第 ノ 図
第2図
101) 100 300 /k 2K 5
K (Hz)間麦曵FIG. 1 is a partially cutaway side view of the receiving part of a handset according to an example of the present invention, and FIG. 2 is an explanatory diagram of changes in characteristics when the state of close contact with the ear changes in the same handset.
Figure 3 is a cross-sectional view of the receiving part of a conventional handset;
The figure is an explanatory diagram of changes in characteristics when the handset is in close contact with the ear. DESCRIPTION OF SYMBOLS 1... Housing, 2... Earpiece part, 3... Receiving unit, 4... Vibration plate, 5... Sound hole agent
Yoshihiro Morimoto No Figure 2 101) 100 300 /k 2K 5
K (Hz)
Claims (1)
トの振動板の前面と後面とを音響的に結合させる音孔を
形成したハンドセット。1. A handset in which a sound hole is formed on the outer periphery of the earpiece of the housing to acoustically connect the front and rear surfaces of the diaphragm of the receiver unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26237584A JPS61139189A (en) | 1984-12-11 | 1984-12-11 | Handset |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26237584A JPS61139189A (en) | 1984-12-11 | 1984-12-11 | Handset |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61139189A true JPS61139189A (en) | 1986-06-26 |
Family
ID=17374875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26237584A Pending JPS61139189A (en) | 1984-12-11 | 1984-12-11 | Handset |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61139189A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6321070B1 (en) | 1998-05-14 | 2001-11-20 | Motorola, Inc. | Portable electronic device with a speaker assembly |
US6337908B1 (en) | 1996-11-28 | 2002-01-08 | Kirk Acoustic A/S | Telephone handset, cordless telephone or mobile telephone for improving acoustic problems in a frequency range |
JP2002330208A (en) * | 2001-03-20 | 2002-11-15 | Alcatel | Free hand telephone allowing leakage |
US6658110B1 (en) | 1998-10-05 | 2003-12-02 | Sonionkirk A/S | Electroacoustic communications unit |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS508489U (en) * | 1973-05-22 | 1975-01-28 |
-
1984
- 1984-12-11 JP JP26237584A patent/JPS61139189A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS508489U (en) * | 1973-05-22 | 1975-01-28 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6337908B1 (en) | 1996-11-28 | 2002-01-08 | Kirk Acoustic A/S | Telephone handset, cordless telephone or mobile telephone for improving acoustic problems in a frequency range |
US6321070B1 (en) | 1998-05-14 | 2001-11-20 | Motorola, Inc. | Portable electronic device with a speaker assembly |
GB2337396B (en) * | 1998-05-14 | 2002-10-09 | Motorola Inc | Portable electronic device with a speaker assembly |
US6658110B1 (en) | 1998-10-05 | 2003-12-02 | Sonionkirk A/S | Electroacoustic communications unit |
JP2002330208A (en) * | 2001-03-20 | 2002-11-15 | Alcatel | Free hand telephone allowing leakage |
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