JPS637055B2 - - Google Patents
Info
- Publication number
- JPS637055B2 JPS637055B2 JP57061915A JP6191582A JPS637055B2 JP S637055 B2 JPS637055 B2 JP S637055B2 JP 57061915 A JP57061915 A JP 57061915A JP 6191582 A JP6191582 A JP 6191582A JP S637055 B2 JPS637055 B2 JP S637055B2
- Authority
- JP
- Japan
- Prior art keywords
- display
- sub
- passband
- frequency
- shift
- 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.)
- Expired
Links
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Circuits Of Receivers In General (AREA)
Description
【発明の詳細な説明】
本発明は、無線通信機におけるIF通過帯域の
表示装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an IF passband display device in a wireless communication device.
従来、混信を回避するために帯域幅の異なる複
数個のフイルタを用いて選択的に切り換えて帯域
幅を狭めたり、IF周波数を上下に多少ずらすか、
または二つのIF周波数を設けて夫々のIF周波数
に対応するフイルタを併設し、一方のIF周波数
を多少ずらすことによつて、受信IFの総合帯域
を狭めていた。 Conventionally, in order to avoid interference, multiple filters with different bandwidths were used and selectively switched to narrow the bandwidth, or the IF frequency was slightly shifted up or down.
Alternatively, by providing two IF frequencies, installing filters corresponding to each IF frequency, and slightly shifting one IF frequency, the overall band of the receiving IF was narrowed.
その度合いは、つまみの位置の他にはわから
ず、従つて正確なIF帯域に合わせることが出来
ないまま無線通信機を操作していた。 The extent of this was not known other than the position of the knob, so the radio was operated without being able to tune to the correct IF band.
本発明は、かかる点に鑑みて行なわれたもので
あつて、主副２個の表示器のうち主表示器を周波
数表示用とし、切換器をONとすることによつて
副表示器へIFの通過帯域を表示させた無線通信
機におけるIF通過帯域表示装置を提供すること
を目的としたものである。 The present invention has been made in view of this point, and the main display of the two main and sub displays is used for frequency display, and by turning on the switch, the IF is switched to the sub display. The object of the present invention is to provide an IF passband display device for a wireless communication device that displays the passband of IF.
以下本発明の一実施例を図面について詳細に説
明する。 An embodiment of the present invention will be described in detail below with reference to the drawings.
第１図において、受信周波数をわずかに上下に
動かすためのクラリフアイアのボリユーム１およ
びIF周波数をわずかに左右に移すためのIFシフ
トのボリユーム２は、切換器３のＡ／Ｄ変換器４
を介してCPU（Central Prosessing Unit）５の
入力ポートへ接続する。 In FIG. 1, clarifier volume 1 for slightly moving the receiving frequency up and down and IF shift volume 2 for slightly shifting the IF frequency left and right are connected to A/D converter 4 of switch 3.
Connect to the input port of the CPU (Central Processing Unit) 5 via.
IFシフト３の代りに、IF増幅回路の帯域幅を
調節するためのIFワイズのボリユームに置き換
えてもよい。 The IF shift 3 may be replaced with an IF width volume for adjusting the bandwidth of the IF amplifier circuit.
CPU５の他方の入力ポートへは、周波数ダイ
ヤル６の出力側を接続する。 The output side of the frequency dial 6 is connected to the other input port of the CPU 5.
なお、CPU５の３個所の出力ポートへは、切
換器３を制御するための切換回路７と主表示器８
および副表示器９とを夫々接続する。 In addition, a switching circuit 7 for controlling the switching device 3 and a main display 8 are connected to the three output ports of the CPU 5.
and the sub-display unit 9, respectively.
CPU５は切換回路７をリアルタイムで切り換
えて、クラリフアイアのボリユーム１とIFシフ
トのボリユーム２の値を、時分割で常に読み込ん
でいる。 The CPU 5 switches the switching circuit 7 in real time to constantly read the values of the volume 1 of the Clarifier and the volume 2 of the IF shift in a time-sharing manner.
常時は、主表示器８と副表示器９によつて周波
数を表示しているが、もしIFの通過帯域を表示
したい場合には、切換器３をONとすると副表示
器９はIFの通過帯域を表示する。 Normally, the frequency is displayed on the main display 8 and the sub-display 9, but if you want to display the IF passband, turn on the switch 3 and the sub-display 9 will display the IF passband. Display band.
次に、IFシフトのボリユームつまみ２を廻わ
してわずかに左右に移すことによつて、所望の
IF通過帯域を副表示器９に表示することが出来
る。 Next, turn the IF shift volume knob 2 and shift it slightly to the left or right to reach the desired value.
The IF passband can be displayed on the sub-display 9.
以上に詳述したように、本発明は比較的簡単な
構成によつて、主副２個の表示器のうち主表示器
を周波数表示用とし、切換器の操作によつて副表
示器をIFの通過帯域を表示させた無線通信機に
おけるIF通過帯域表示装置を提供することが出
来る。 As described in detail above, the present invention has a relatively simple configuration, and the main display of the two main and sub displays is used for frequency display, and the sub display is set to IF by operating the switch. It is possible to provide an IF passband display device for a wireless communication device that displays the passband of .
第１図は本発明の一実施例を示す無線通信機に
おけるIF通過帯域表示装置の構成概略図、第２
図はパネルに実装した態様を示す図である。
１…クラリフアイア、２…IFシフト或いはIF
ワイズ、３…切換器、４…Ａ／Ｄ変換器、５…
CPU、６…周波数ダイヤル、７…切換制御回路、
８…主表示器、９…副表示器。
FIG. 1 is a schematic diagram of the configuration of an IF passband display device in a wireless communication device showing one embodiment of the present invention, and FIG.
The figure is a diagram showing an aspect of mounting on a panel. 1... Clarifia, 2... IF shift or IF
width, 3...switcher, 4...A/D converter, 5...
CPU, 6...frequency dial, 7...switching control circuit,
8...Main display, 9...Sub display.
Claims (1)
有する無線通信機において、周波数表示ダイヤル
の出力と、クラリフアイア用ボリユームと、IF
シフト或いはIFワイズ用のボリユームの出力と
を切換器およびＡ／Ｄ変換器を介して夫々CPU
へ供給し、該CPUより前記切換器を制御する切
換回路および主表示器並びに副表示器へ出力を送
出して、IFシフトの切換器をONとしたときに副
表示器をIF通過帯域に切り換えることを特徴と
する無線通信機におけるIF通過帯域表示装置。1. In a wireless communication device that has a main display and a sub-display that display the frequency, the output of the frequency display dial, the loudspeaker volume, and the IF
The output of the volume for shift or IF width is sent to the CPU via a switch and an A/D converter.
The CPU sends output to the switching circuit that controls the switching device, the main display, and the sub-display, and switches the sub-display to the IF passband when the IF shift switch is turned on. An IF passband display device for a wireless communication device, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57061915A JPS58179027A (en) | 1982-04-14 | 1982-04-14 | If pass band display of radio communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57061915A JPS58179027A (en) | 1982-04-14 | 1982-04-14 | If pass band display of radio communication device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58179027A JPS58179027A (en) | 1983-10-20 |
| JPS637055B2 true JPS637055B2 (en) | 1988-02-15 |
Family
ID=13184928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57061915A Granted JPS58179027A (en) | 1982-04-14 | 1982-04-14 | If pass band display of radio communication device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58179027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715474U (en) * | 1993-08-24 | 1995-03-14 | 信勝 立花 | Emergency braking system for automobiles |
-
1982
- 1982-04-14 JP JP57061915A patent/JPS58179027A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0715474U (en) * | 1993-08-24 | 1995-03-14 | 信勝 立花 | Emergency braking system for automobiles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58179027A (en) | 1983-10-20 |
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