JPH0193244A - Telephone set - Google Patents
Telephone setInfo
- Publication number
- JPH0193244A JPH0193244A JP62250505A JP25050587A JPH0193244A JP H0193244 A JPH0193244 A JP H0193244A JP 62250505 A JP62250505 A JP 62250505A JP 25050587 A JP25050587 A JP 25050587A JP H0193244 A JPH0193244 A JP H0193244A
- Authority
- JP
- Japan
- Prior art keywords
- voice
- transmitter
- signal
- receiver
- switching
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract description 3
- 238000013016 damping Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01019—Potassium [K]
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電話機に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to telephones.
従来の電話機においては、通話中に、送話器から受話器
へ音声を回り込ませる測音の音量レベルが、調整される
ことがなく固定的であるのが一般である。In conventional telephones, during a call, the volume level of sound measurement, which routes audio from the transmitter to the receiver, is generally fixed and not adjusted.
〔発明が解決しようとす２る問題点〕
上述した従来の電話機においては、通話中に、送話器か
ら受話器へ回り込ませる測音レベルが固定的であるため
に、周囲雑音が大きい場合、送話器から周囲雑音が測音
として受話器へ回り込み、受話器における音質を劣化さ
せて、相手の音声を聞き取りにくくするという欠点があ
る。[Problems to be Solved by the Invention] In the above-mentioned conventional telephone, the sound measurement level that is routed from the transmitter to the receiver during a call is fixed. There is a drawback in that ambient noise from the telephone set enters the telephone receiver as sound measurement, deteriorating the sound quality at the telephone receiver and making it difficult to hear the other party's voice.
本発明の電話機は、送話器から出力される送話器出力信
号より音声信号を検出して音声検出状態信号を出力する
音声検出手段と、前記送話器出力信号のレベルを制御し
て送話器から受話器への測音レベルを調整する測音調節
手段と、前記音声検出状態信号を入力して前記測音調節
手段に対する測音レベル調整用の制御信号を出力する制
御手段と、を備えて構成される。The telephone set of the present invention includes a voice detecting means for detecting a voice signal from a transmitter output signal outputted from a transmitter and outputting a voice detection status signal, and a voice detecting means for outputting a voice detection state signal, and controlling the level of the transmitter output signal and transmitting the voice signal. Sound measurement adjustment means for adjusting the sound measurement level from the telephone receiver to the receiver; and control means for inputting the voice detection state signal and outputting a control signal for adjusting the sound measurement level to the sound measurement adjustment means. It consists of
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例のブロック図である。第１図
に示されるように、本実施例は、電話回路１と受話器２
と、音声検出部３と、挿入損失４と、切替部５と、送話
器６と、制御部７と、を備えて構成される。FIG. 1 is a block diagram of one embodiment of the present invention. As shown in FIG. 1, this embodiment has a telephone circuit 1 and a receiver 2.
, a voice detection section 3 , an insertion loss 4 , a switching section 5 , a transmitter 6 , and a control section 7 .
第１図において、送話器６から出力される送話器出力信
号は、音声検出部３および切替部５に送られるが、切替
部５に入力される送話器出力信号は二分され、一方は直
接に、他方は挿入損失４を経由して切替回路５に入力さ
れる。音声検出部３においては、送話時には送話器出力
信号に含まれる音声信号が検出され、所定の音声検出状
態信号が出力されて制御部７に送られる。制御部７にお
いては、前記音声検出状態信号が入力されると、所定の
切替制御信号が出力されて切替部５に入力され、切替部
５においては、送話器６から直接切替部５に入力される
前記送話器出力信号が選択されて、電話回路１に入力さ
れる。また、音声検出部３において音声信号が検出され
ず、音声検出状態信号が出力されない場合には、制御部
７から入力される切替制御信号を介して、切替部５に挿
入損失４を経由して入力される送話器出力信号が選択さ
れて、電話回路１に入力される。電話回路１においては
、切替部５から入力される送話器出力信号は所定の電話
回線１０１に送出されるとともに、測音として受話器２
に送られる。In FIG. 1, the transmitter output signal output from the transmitter 6 is sent to the voice detecting section 3 and the switching section 5, but the transmitter output signal input to the switching section 5 is divided into two parts; is directly inputted, and the other is inputted to the switching circuit 5 via the insertion loss 4. The voice detection section 3 detects the voice signal included in the transmitter output signal during transmission, and outputs a predetermined voice detection state signal, which is sent to the control section 7 . In the control section 7, when the voice detection state signal is input, a predetermined switching control signal is outputted and inputted to the switching section 5, and in the switching section 5, a predetermined switching control signal is input directly from the transmitter 6 to the switching section 5. The handset output signal that is transmitted is selected and input to the telephone circuit 1. Further, when the audio signal is not detected in the audio detection unit 3 and the audio detection status signal is not output, the switching control signal input from the control unit 7 is sent to the switching unit 5 via the insertion loss 4. The input transmitter output signal is selected and input to the telephone circuit 1. In the telephone circuit 1, the transmitter output signal input from the switching unit 5 is sent to a predetermined telephone line 101, and is also transmitted to the receiver 2 as a sound measurement signal.
sent to.
従って、利用者が送話中においては、送話器６から受話
器２に対する測音は、送話器６→切替部５→電話回路１
→受話器２の経由を経て受話器２に入力される。また、
送話していない時には、前記測音は、送話器６→挿入損
失４→切替部５→電話回路１→受話器２の経路を経て受
話器２に入力される。すなわち、送話中でない時には、
測音のレベルは挿入損失４によって減衰を受けるため、
周囲雑音による受話器２における測音レベルが著しく削
減され、受話音声における音質劣化に及ぼす影響が低減
される。Therefore, while the user is transmitting, the sound measurement from the transmitter 6 to the receiver 2 is as follows: transmitter 6→switching unit 5→telephone circuit 1.
→It is input to the handset 2 via the handset 2. Also,
When not transmitting, the sound measurement is input to the handset 2 via the path of the handset 6 -> insertion loss 4 -> switching section 5 -> telephone circuit 1 -> handset 2. In other words, when the call is not in progress,
Since the sound measurement level is attenuated by insertion loss 4,
The sound measurement level in the receiver 2 due to ambient noise is significantly reduced, and the influence on the deterioration of the sound quality of the received voice is reduced.
以上説明したように、本発明は、送話していない時に送
話器から受話器に回り込む測音レベルを減衰させること
により、周囲雑音が大きい状態においても、周囲雑音に
よる測音レベルに起因する受話音声の音質低下を軽減す
ることができるという効果がある。As explained above, by attenuating the measured sound level that goes around from the transmitter to the handset when not transmitting, even when the surrounding noise is large, the received voice due to the measured sound level due to the surrounding noise can be reduced. This has the effect of reducing deterioration in sound quality.
第１図は本発明の一実施例のブロック図である。
図において、１・・・電話回路、２・・・受話器、３・
・・音声検出部、４・・・挿入損失、５・・・切替部、
６・・・送話器、７・・・制御部。FIG. 1 is a block diagram of one embodiment of the present invention. In the figure, 1...telephone circuit, 2... handset, 3...
...Audio detection unit, 4...Insertion loss, 5...Switching unit,
6... Transmitter, 7... Control unit.
Claims (1)
出して音声検出状態信号を出力する音声検出手段と、前
記送話器出力信号のレベルを制御して送話器から受話器
への測音レベルを調整する測音調節手段と、前記音声検
出状態信号を入力して前記測音調節手段に対する測音レ
ベル調整用の制御信号を出力する制御手段と、を備える
ことを特徴とする電話機。a voice detection means for detecting a voice signal from a transmitter output signal outputted from the transmitter and outputting a voice detection status signal; A telephone set comprising a sound measurement adjustment means for adjusting a sound measurement level, and a control means for inputting the voice detection state signal and outputting a control signal for sound measurement level adjustment to the sound measurement adjustment means. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62250505A JPH0193244A (en) | 1987-10-02 | 1987-10-02 | Telephone set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62250505A JPH0193244A (en) | 1987-10-02 | 1987-10-02 | Telephone set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0193244A true JPH0193244A (en) | 1989-04-12 |
Family
ID=17208883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62250505A Pending JPH0193244A (en) | 1987-10-02 | 1987-10-02 | Telephone set |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0193244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5748725A (en) * | 1993-12-29 | 1998-05-05 | Nec Corporation | Telephone set with background noise suppression function |
-
1987
- 1987-10-02 JP JP62250505A patent/JPH0193244A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5748725A (en) * | 1993-12-29 | 1998-05-05 | Nec Corporation | Telephone set with background noise suppression function |
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