JPS61121045U - - Google Patents
Info
- Publication number
- JPS61121045U JPS61121045U JP1985003899U JP389985U JPS61121045U JP S61121045 U JPS61121045 U JP S61121045U JP 1985003899 U JP1985003899 U JP 1985003899U JP 389985 U JP389985 U JP 389985U JP S61121045 U JPS61121045 U JP S61121045U
- Authority
- JP
- Japan
- Prior art keywords
- intermediate frequency
- carrier wave
- circuit
- frequency circuit
- received
- 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 1
Description
図は本考案の無線電話機の回路図である。
１……ラジオ受信機、２……受信部、１３……
中間周波回路、１６……ノイズフイルタ、１８…
…スケルチ回路、１９……トーンデコーダ、２０
……リレー、２２……制御用の第１トランジスタ
、２３……制御用の第２トランジスタ。
The figure is a circuit diagram of a wireless telephone according to the present invention. 1 ... Radio receiver, 2 ... Receiving section, 13...
Intermediate frequency circuit, 16...Noise filter, 18...
... Squelch circuit, 19 ... Tone decoder, 20
... Relay, 22 ... First transistor for control, 23 ... Second transistor for control.
Claims (1)
子機より送信された搬送波を受信する受信回路に
、受信した搬送波を増幅、検波する中間周波回路
と、該中間周波回路にて検波したパイロツト信号
を検出するためのＰＬＬ発振器を有するトーンデ
コーダと、子機よりの搬送波が受信されていない
とき中間周波回路よりコンバータノイズを得て動
作するスケルチ回路と、中間周波回路よりの制御
信号にて制御され前記搬送波が受信されていない
ときＰＬＬ発振器を不動作させる制御トランジス
タとよりなるラジオ付無線電話機。 In a wireless telephone with a built-in radio receiver,
A tone decoder having a reception circuit for receiving a carrier wave transmitted from a slave unit, an intermediate frequency circuit for amplifying and detecting the received carrier wave, and a PLL oscillator for detecting a pilot signal detected by the intermediate frequency circuit; A squelch circuit operates by obtaining converter noise from an intermediate frequency circuit when the carrier wave from the slave unit is not being received, and a squelch circuit that is controlled by a control signal from the intermediate frequency circuit and disables the PLL oscillator when the carrier wave is not being received. A wireless telephone with a radio consisting of a control transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985003899U JPS61121045U (en) | 1985-01-16 | 1985-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985003899U JPS61121045U (en) | 1985-01-16 | 1985-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61121045U true JPS61121045U (en) | 1986-07-30 |
Family
ID=30478959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985003899U Pending JPS61121045U (en) | 1985-01-16 | 1985-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61121045U (en) |
-
1985
- 1985-01-16 JP JP1985003899U patent/JPS61121045U/ja active Pending