JPS6178449U - - Google Patents
Info
- Publication number
- JPS6178449U JPS6178449U JP1984163416U JP16341684U JPS6178449U JP S6178449 U JPS6178449 U JP S6178449U JP 1984163416 U JP1984163416 U JP 1984163416U JP 16341684 U JP16341684 U JP 16341684U JP S6178449 U JPS6178449 U JP S6178449U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- circuit
- dial pulse
- modulation
- pilot signal
- 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
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000005236 sound signal Effects 0.000 claims 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 230000011664 signaling Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Description
図は本考案の無線電話機の誤動作防止回路図で
ある。
１…子機、３…送信回路、５…パイロツト信号
発振回路、７…ダイヤルパルス発生回路、８…マ
イクロフオン回路、９…シユーテイングトランジ
スタ、１０…ＦＭ変調回路、１４…パイロツト信
号制御回路。
The figure is a malfunction prevention circuit diagram of the wireless telephone according to the present invention. 1 ...Slave unit, 3...Transmission circuit, 5...Pilot signal oscillation circuit, 7...Dial pulse generation circuit, 8...Microphone circuit, 9...Shutting transistor, 10...FM modulation circuit, 14...Pilot signal control circuit.
Claims (1)
電話通話出来るようにした子機とを有する無線電
話機において、前記子機に音声信号を発生するマ
イクロフオン回路と、押圧された押ボタンに応じ
てダイヤルパルス信号を発生するダイヤルパルス
信号発生回路と、前記ダイヤルパルス信号にてパ
ルス変調されるパイロツト信号を発生するパイロ
ツト信号発振回路と、前記パイロツト信号及び音
声信号をＦＭ変調するＦＭ変調回路と、前記パイ
ロツト信号発振回路とＦＭ変調回路間に接続され
前記ダイヤルパルス信号の送信時に生じる制御信
号で制御され、ＦＭ変調回路に印加されるパイロ
ツト信号を制御しＦＭ変調回路の変調度を変化さ
せるパイロツト信号制御回路とを有する無線電話
機のダイヤルパルス変調回路。 A wireless telephone comprising a base unit connected to a telephone line and a slave unit capable of making a wireless telephone conversation with the base unit, including a microphone circuit for generating an audio signal to the slave unit, and a pressed pushbutton. a dial pulse signal generation circuit that generates a dial pulse signal in accordance with the dial pulse signal; a pilot signal oscillation circuit that generates a pilot signal that is pulse-modulated by the dial pulse signal; and an FM modulation circuit that performs FM modulation on the pilot signal and the audio signal. and a control signal connected between the pilot signal oscillation circuit and the FM modulation circuit, controlled by a control signal generated when transmitting the dial pulse signal, and controlling the pilot signal applied to the FM modulation circuit to change the degree of modulation of the FM modulation circuit. A dial pulse modulation circuit for a radio telephone having a pilot signal control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984163416U JPS6178449U (en) | 1984-10-29 | 1984-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984163416U JPS6178449U (en) | 1984-10-29 | 1984-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6178449U true JPS6178449U (en) | 1986-05-26 |
Family
ID=30721275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984163416U Pending JPS6178449U (en) | 1984-10-29 | 1984-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6178449U (en) |
-
1984
- 1984-10-29 JP JP1984163416U patent/JPS6178449U/ja active Pending
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